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Regeneration Procedures of Pinus radiata in the Southern Cape Province
Item type: Journal Article • Journal: South African Forestry Journal • Authors: J.B. Zwolinski --- , D. G.M. Donald --- Forestry Faculty, A. van Laar --- Forestry Faculty, W.H. Groenewald --- Division of Forest Science and Technology,The present paper is a continuation of the series dealing with the regeneration of Pinus radiata in the southern Cape Province. The study deals with post planting mortality and growth in response to the experimental treatments and planting site environment... -
Variation in important pasture grasses: I. Morphological and geographical variation
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: G.E. Gibbs Russell --- Department of Agriculture and Water Supply, J.J. Spies --- Department of Agriculture and Water Supply,Seven species are important pasture grasses throughout the western Transvaal, Orange Free State, northern Cape and Natal. Taxonomically, each is a widely distributed species complex with a range of morphological variants and many ecotypes. The local forms well suited to... -
Growth and desiccation of Themeda triandra and Sporobolus fimbriatus in relation to diminishing moisture availability
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture (Eastern Cape Region),Water was withheld from individual plants of Themeda triandra and Sporobolus fimbriatus growing in pots in a greenhouse. Leaf extension growth, followed by successive degrees of tiller desiccation, were monitored on a daily basis and related to diminishing moisture availability... -
Effect of intensity of defoliation by goats at different phenophases on leaf and shoot growth of acacia karroo hayne
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: W.R. Teague --- , B.H. Walker --- Botany Department,Defoliation by goats (leaves plus shoots) during the growing phenophases resulted in a considerable stimulation of leaf and shoot growth relative to non‐defoliated plants. The response differed considerably depending on the intensity and phenophase of defoliation. Plants were most susceptible... -
Response of Cymbopogon validus tillers to three clipping frequencies
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: SheonaE. Shackleton --- Department of Botany, Transkei M.T. Mentis --- Department of Botany, Republic of South AfricaThe response of tagged Cymbopogon validus tillers to three clipping frequencies indicated that this species is intolerant of severe and frequent defoliation. This could account for its decreased abundance in heavily‐grazed areas in and around Mkambati Game Reserve, Transkei. -
Influence of rainfall and grazing on the compositional change of the herbaceous layer of a sandveld savanna
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: T.G. O'Connor --- Resource Ecology Group, Department of Botany,The influence of heavy grazing by cattle for three years, and of rainfall interception for one year, on the herbaceous composition of a sandveld savanna in Gazankulu was investigated. The composition and the abundance of the predominant species changed substantially,... -
Patterns of plant selection by grazing cattle in two savanna grasslands: A plant's eye view
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: T.G. O'Connor --- Resource Ecology Group, Department of Botany, Republic of South AfricaThe amount of grazing experienced by individual tufts of the most abundant perennial grasses of two Transvaal savannas was monitored at regular intervals for two growing seasons. In general, Setaria incrassata and Themeda triandra were heavily grazed, Bothriochloa insculpla and... -
Pedogeomorphic aspects of the Roodepoort area, Transvaal: Soil depth-slope relationships
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.C. Munnik --- Department of Geography, E. Verster --- Department of Geography, T.C. van Rooyen --- Department of Geography,Fifty hillslope profiles with associated soils in the Roodepoort area, Transvaal, were examined to determine the relationships between soil depth and hillslope characteristics. A meso-scale approach was adopted which implied the relationship between three soil depth phases and the hillslope... -
The origin of textural lamellae in Quaternary coast sands of Natal
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.P. van Reeuwijk --- , The Netherlands J.M. de Villiers --- Department of Soil Science and Agrameteorotogy,A new concept of the formation of textural subsoil lamellae has been developed on the basis of their morphology in aeolian coastal deposits in Natal. It has been concluded that they are initiated somewhere at depth in the profile by... -
Kaliumvaslegging in 'n Arcadia-grond: I. Vaslegging onder natuurlike toestande
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.J. Steenkamp --- , Republiek van Suid-Afrika A.A. Theron --- Departement Grand- en Waterboukunde, Republiek van Suid-Afrika J.A. de Bruyn --- Departement Plantkunde, Republiek van Suid-AfrikaTen einde die mate van kaliumvaslegging op 'n grand van die Arcadia-serie onder natuurlike toestande na te gaan, is grondmonsters van 'n reeks proefpersele geneem. Die persele het verskillende hoeveelhede kaliumbemesting oor 'n periode van 12 jaar ontvang. Die monsters... -
Changes in percentage moisture loss of excised leaves of seven field-grown grain sorghum genotypes
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W.G. Wenzel --- , Republic of South Africa W.J. van den Berg --- , Republic of South AfricaThe objectives of these experiments were to study the seasonal and diurnal changes in percentage moisture loss (PML) and correlated characteristics of excised leaves. Seven grain sorghum genotypes were planted in a randomized block design and their PML and the... -
Spatial pattern and variability of soils in a granite landscape, north-east of Nelspruit
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: E. Verster --- Department of Geography, Republic of South AfricaMorphological and selected chemical and granulometric properties of eleven soil profiles occurring on five hillslope sites (midslope, upper footslope, mid-footslope, lower footslope and valley bottom) were determined in order to evaluate the spatial pattern and variability of soils in a... -
Kaliumvaslegging in 'n Arcadia-grond II. Vaslegging in die kleifraksie
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.J. Steenkamp --- , Republiek van Suid-Afrika A.A. Theron --- Departement Grond- en Waterboukunde, Republiek van Suid-Afrika J.A. de Bruyn --- Departement Botanie, Republiek van Suid-AfrikaOndersoek is ingestel na die invloed van relatief lae toedienings van kalium, asook drogingstemperatuur, op die vermoë van die kleifraksie van 'n Arcadia-grond, versadig met kalsium of magnesium, om kalium vas te lê. Die verskil in reaksie tussen die behandelings... -
Spatial pattern and variability of soil and hillslope properties in a granitic landscape 1. Pretoriuskop area
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.C. Munnik --- Department of Geography, Republic of South Africa E. Verster --- Department of Geography, Republic of South Africa T.H. van Rooyen --- Department of Geography, Republic of South AfricaCharacteristics of nine hillslope profiles and selected properties of 69 soil profiles were determined in order to evaluate the spatial pattern and variability of soil and hillslope properties in a granitic area near Pretoriuskop, Kruger National Park. A transect design... -
Effects of 2,4-D iso-octyl ester on the morphology, chlorophyll content and dry mass of lettuce and tomato seedlings
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.R. Meinhardt --- Department of Agricultural Development, Republic of South Africa L.P. van Dyk --- Department of Agricultural Development, Republic of South AfricaTomato and lettuce seedlings were exposed to 1 or 3 mm of simulated rainfall containing the auxin-type herbicide 2,4-D iso-octyl ester. They were then evaluated weekly for damage according to symptoms and chlorophyll content. In addition, dry matter production was... -
Spatial pattern and variability of soil and hillslope properties in a granitic landscape 2. Pretoria—Johannesburg area
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.C. Munnik --- Department of Geography, Republic of South Africa E. Versterand --- Department of Geography, Republic of South Africa T.H. van Rooyen --- Department of Geography, Republic of South AfricaUsing a transect design, a detailed examination was made of nine hillslopes and 64 soil profiles in the granitic area between Johannesburg and Pretoria to assess the spatial pattern and variability of soil and hillslope properties. The land surface was... -
A slope sequence of Podzols in the southern Cape, South Africa 1. Physical and micromorphological properties
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L.C. Hawker --- Department of Geography, South Africa T.H. van Rooyen --- Department of Geography, South Africa R.W. Fitzpatrick --- Department of Geography, South AfricaIn South Africa the characteristics of Podzols, with or without placic horizons, and the complex processes involved in their formation, are generally still poorly understood. To investigate both these aspects thoroughly, these soils were studied in the landscape context, described... -
Spatial pattern and variability of soil and hillslope properties in a granitic landscape. 3. Phalaborwa area
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.C. Munnik --- Department of Geography, Republic of South Africa E. Verster --- Department of Geography, Republic of South Africa T.H. van Rooyen --- Department of Geography, Republic of South AfricaA pedogeomorphic study was made of the area immediately east of Phalaborwa underlain by granitic materials. Fifty-five soil profiles from nine transects were examined in detail to determine, among other things, the spatial variability of the soils and the hillslope... -
Improved criteria for classifying hydric soils in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.C. Kotze --- Department of Grassland Science, Republic of South Africa J.R. Klug --- Department of Grassland Science, Republic of South Africa J.C. Hughes --- Department of Agronomy, Republic of South Africa C.M. Breen --- , Republic of South AfricaThere is an increasing awareness of the ecological and agricultural importance of hydric (wetland) soils. Because of the scarcity of information in South Africa, this study aimed to critically examine systems currently being applied to the hydric soils of South... -
Larval mortality and injury patterns of the African stalk borer, Busseola fusca (Fuller) on various plant parts of Bt-transgenic maize
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. B.J. van Rensburg --- , Republic of South AfricaDuring the 1998/99 season considerable stem damage was caused by B. fusca in commercial plantings of Bt-maize, without leaf feeding damage during the vegetative stages of plant development. This indicated that larvae may survive on some less toxic plant part... -
Grondgeassosieerde, lineêre plantegroeipatrone in die Warmbadomgewing van die Limpopo-provinsie van Suid-Afrika
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.J. Dinkelmann --- Departement Geografie en Omgewingstudies, E. Verster --- Departement Geografie en Omgewingstudies, T.H. van Rooyen --- Departement Geografie en Omgewingstudies,Lineêre mikroreliëfverskynsels wat op lugfoto's soos vingerafdrukpatrone vertoon en bestaande uit boomryke kruine en grasryke trôe is op die voethang van die Baviaansberg, Warmbadomgewing (Suid-Afrika) beskryf. Vir die doel om die oorsprong van die verskynsels te verklaar is van 'n... -
The relationship between soil morphology and soil water regime: preliminary results in the Weatherley catchment
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.W. van Huyssteen --- Department of Soil, Crop and Climate Sciences, Republic of South Africa P. A.L. le Roux --- Department of Soil, Crop and Climate Sciences, Republic of South Africa M. Hensley --- Department of Soil, Crop and Climate Sciences, Republic of South AfricaSoil water contents were measured for five years at Weatherley, an intensively instrumented catchment in the north eastern part of the Eastern Cape Province. Soil water contents are expressed in terms of average duration of saturation with water above 0.7... -
Indications of ferrolysis and structure degradation in an Estcourt soil and possible relationships with plinthite formation
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. A.L. le Roux --- Department Soil, Crop and Climate Sciences, Republic of South Africa C.C. du Preez --- Department Soil, Crop and Climate Sciences, Republic of South Africa C. Bühmann --- , Republic of South AfricaGeographic associations of duplex soils, like the Estcourt form, and plinthic soils, like the Avalon and Westleigh forms, such as are found in the Eastern Free State, are recognised worldwide. These soils share redox morphology. In duplex soils, the redox... -
Interpretation of digital soil photographs using spatial analysis: I. Methodology
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.W. van Huyssteen --- Department of Soil, Crop and Climate Sciences, South Africa P. A.L. le Roux --- Department of Soil, Crop and Climate Sciences, South Africa M. Hensley --- Department of Soil, Crop and Climate Sciences, South AfricaSystems for the evaluation of soil wetness use soil colour extensively. The determination of soil colour normally relies on the user's perception of colour and usually employs a colour matching system, e.g. Munsell Soil Color Charts. The South African soil... -
Interpretation of digital soil photographs using spatial analysis: II. Application
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.W. van Huyssteen --- Department of Soil, Crop and Climate Sciences, South Africa P. A.L. le Roux --- Department of Soil, Crop and Climate Sciences, South Africa M. Hensley --- Department of Soil, Crop and Climate Sciences, South AfricaColour variation in digital photographs of soils was quantified and classified meaningfully, using ArcView Spatial Analyst. This procedure holds great promise for the unbiased and quantitative determination of soil colour properties and statistical correlation with related soil hydrological conditions. The... -
Genetic distance analysis of elite cassava (Manihot esculenta Crantz) genotypes in Malawi using morphological and AFLP marker techniques
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: I. R.M. Benesi --- Department of Plant Sciences, South Africa M.T. Labuschagne --- Department of Plant Sciences, South Africa A. G.O. Dixon --- , Nigeria C.D. Viljoen --- Department of Plant Sciences, South Africa N.M. Mahungu --- , MalawiCassava is the second most important staple food crop in Sub-Saharan Africa and is also an important food and cash crop in Malawi. A prerequisite for any genetic improvement programme is knowledge of the extent of genetic variation present between... -
Acidity/Al aspects in soils of the Lusikisiki area, Eastern Cape Province
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C. Bühmann --- , D.J. Beukes --- , D.P. Turner --- ,Soil acidity related parameters like pH, extractable and soil organic matter bound Al, amorphous Al phases and Al substitutions in secondary iron minerals were determined on 57 samples from 15 representative soil profiles from the Lusikisiki area. The pH (H2O)... -
Nature and distribution of South African plinthic soils: Conditions for occurrence of soft and hard plinthic soils
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. A.L. le Roux --- Department of Soil, Crop and Climate Sciences, Republic of South Africa C.C. du Preez --- Department of Soil, Crop and Climate Sciences, Republic of South AfricaThe relevance of using redox morphology and irreversible hardened material to classify soft and hard plinthic soil forms is often questioned as the paleoclimate of South Africa varied significantly. Since the origin of the Soil Classification System of South Africa... -
Evaluation and identification of old and new macadamia cultivars and selections at Pietermaritzburg
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. Allan --- Horticultural Science, South AfricaNewer and older cultivars and selections of macadamias have been evaluated at Pietermaritzburg over periods of from five to 35 years. In their sixth year, trees of some of the newer selections have produced good yields of over 10 kg... -
Effect of segregation distortion on genetic mapping of a PI 294994-derived Russian Wheat Aphid resistance gene
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- Department of Genetics, South Africa W. Boshoff --- , South Africa F. du Toit --- , South AfricaAn earlier genetic mapping study with an unidentified Russian Wheat Aphid resistance gene, referred to as Dn? and derived from PI 294994, suggested that the gene occurs close to the centromere on 7DS. Closer inspection of the map data showed... -
A review of advances in hydropedology for application in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: C.W. van Huyssteen --- , South AfricaHydropedology is internationally a new and fast-growing science. It is therefore pertinent to take heed of developments in this regard to guide current and future research in South Africa. This paper aims to discuss the initiation and advances in the... -
Comparison of SSR and AFLP analysis for genetic diversity assessment of Ethiopian arabica coffee genotypes
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Yigzaw Dessalegn --- , Ethiopia Liezel Herselman --- Department of Plant Sciences, Maryke Labuschagne --- Department of Plant Sciences,Knowledge of genetic diversity within and among genotypes of any crop is fundamental for estimation of the potential genetic gain in a breeding programme and effective conservation of available genetic resources. Currently, different molecular marker techniques are being developed for... -
Morphological characters and ascorbic acid content of an elite genotype of Corchorus olitorius: the influence of moisture stress
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: AnofiOT Ashafa --- Department of Plant Sciences, South Africa AbidemiA Abass --- Department of Botany, Nigeria Titilola Osinaike --- Department of Botany, Nigeria FrancisB Lewu --- Agriculture Department, South AfricaMoisture stress can be deleterious to physicochemical properties of crop species to a varying degree. The influence of moisture stress on the ascorbic acid content in the leaf and morphological characters of an elite genotype of Corchorus olitorius were tested... -
Changes in some key biological parameters of the northern Benguela sardine stock
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: I. Fossen D. C. Boyer H. PlarreDuring the past 50 years, more than 15 million tons of sardine have been harvested from the northern Benguela ecosystem. The sardine population has undergone changes in abundance estimated to range over more than two orders of magnitude, but for... -
Seabird bycatch by tuna longline fisheries off southern Africa, 1998–2000
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: P. G. Ryan D. G. Keith M. KroeseThe incidental mortality of seabirds in tuna longline fisheries is estimated for the continental South African Exclusive Economic Zone (EEZ). Fishery observers accompanied 13 fishing trips and observed 108 sets (143 260 hooks) during the period 1998–2000. Despite most lines... -
Aspects of the population biology of Octopus vulgaris in False Bay, South Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: C. D. Smith C. L. GriffithsThe population biology of the octopus Octopus vulgaris was studied from specimens collected by SCUBA in False Bay, South Africa, between 1997 and 1998. In all, 83% of the specimens collected were found in shelter. Small octopuses were more active... -
A CONCEPTUAL MODEL OF A SILTATION SYSTEM IN SHALLOW LAKES WITH LITTORAL VEGETATION
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: P.J. Weisser --- Facultad de Ciencias,In shallow lakes a siltation system develops when wind driven water turbulence erodes the lake floor, silt is resuspended and transported by means of waterdrift into the littoral vegetation. Here, due to the resistance of the vegetation, the turbulence is... -
AN EXPERIMENTAL EVALUATION OF THE INFLUENCE OF TEMPERATURE ON THE NATURAL RATE OF INCREASE OF DAPHNIA PULEX DE GEER
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.G. van As --- Department of Zoology, South Africa C. Comhrinck --- Department of Zoology, South Africa A.J. Reinecke --- Department of Zoology, South AfricaCohorts of Daphnia pulex from Boskop Dam, an irrigation reservoir near Potchefstroom, Transvaal, were kept at natural food levels under constant temperatures of 10, 15 and 20°C as well as under conditions of temperature with a diurnal fluctuation varying between... -
AGE, GROWTH, REPRODUCTION AND MORTALITY OF THE BUTTER-CATFISH EUTROPIUS DEPRESSIROSTRIS (SCHILBEIDAE: PISCES) IN THE LUPHEPHE NWANEDZI IMPOUNDHENT, VENDA (SOUTH AFRICA)
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: T. Hecht --- Department of Zoology, South AfricaAspects of the biology of Eutropius depressirostris in the Luphephe-Nwanedzi impoundment in north-east Venda (South Africa 30° 25' E, 23° 14' S) have been investigated. The Von Bertalanffy equation -
POPULATION DYNAMICS AND DEMOGRAPHY OF AN ESTUARINE COPEPOD (PSEUDODIAPTOMUS EESSEI) IN LAKE SIBAYA, A SUBTROPICAL FRESHWATER COASTAL LAKE
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: RC Hart --- , South AfricaPopulation size and stage structure of Pseudodiaptomus hessei (Mrázek) was studied over 27 months at a single site in subtropical Lake Sibaya. Population density varied seasonally from about 1 to 4 individuals per litre, but a fairly stable population structure... -
REDESCRIPTIONS OF PLACOBDELLA STUHLMANNI (BLANCHARD, 1897) AND PLACOBDELLA GAROUI (HARDING, 1932) (HIRUDINEA: GLOSSIPHONIIDAE)
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.H. Oosthuizen --- Department of Zoology, South AfricaThe two African leeches Placobdella stuhlmanni (Blanchard, 1897) and Placobdella garoui (Harding, 1932) are redescribed and figured because of the confusion that exists in the literature with regard to the specific identities of the two taxa. During a survey of... -
PRODUCTION OF THE AFRICAN CATFISH (CLARIAS GARIEPINUS) I. GROWTH, MORTALITY AND YIELD SOUTH OF THE ZAMBEZI
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: Douglas Clay --- Marine Fish Division, Department of Fisheries and Oceans, CanadaClarias gariepinus were sampled from eight water bodies in southern Africa between 1973 and 1975. Aging results indicate a similar growth pattern for most areas with a near linear age-length relationship. Between year growth compensation was found to be present... -
AN ASSESSMENT OF THE POTENTIAL IMPACT OF ALIEN INVASIVE VEGETATION ON THE GEOMORPHOLOGY OF RIVER CHANNELS IN SOUTH AFRICA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: Kate Rowntree --- Department of Geography, South AfricaInvasion of the riparian zone by alien vegetation is recognised as a serious problem in many areas of South Africa. Vegetation is a dynamic component of river channels. It is an important control variable affecting channel form whereas the flow... -
A GEOMORPHOLOGICAL APPROACH TO THE IDENTIFICATION AND CLASSIFICATION OF INSTREAM FLOW ENVIRONMENTS
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: R.A. Wadeson --- Department of Geography, South AfricaThis paper highlights the considerable confusion that exists within the ecological literature concerning the classification of the lotic (flowing water) environments. A large number of ill defined terms has been introduced by various authors; these often relate to better defined... -
MASS MORTALITY OF MARINE AND ESTUARINE FISH IN THE SWARTVLEI AND WILDERNESS LAKE SYSTEMS, SOUTHERN CAPE.
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: I.A. Russell --- National Parks Board, South AfricaTwo incidences of mass mortality of fish were recorded in two saline waterbodies (Swartvlei estuary and Rondevlei) in the Wilderness National Park. Species affected were the Knysna seahorse (Hippocampus capensis) and longsnout pipefish (Syngnathus acus) in the Swartvlei estuary, and... -
MASS MORTALITIES OF FISH IN SOUTH AFRICAN ESTUARIES
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: A.K. Whitfield --- , South AfricaChanges to the physico-chemical environment have been identified as the cause of fish mass mortalities in South African estuaries. Most published accounts have linked these mortalities to a single dominant factor such as low salinity, low or high temperature, low... -
WATER TEMPERATURE AND THE 1987 FISH KILL AT LAKE ST LUCIA ON THE SOUTH EASTERN COAST OF AFRICA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: D.P. Cyrus --- Coastal Research Unit of Zululand, Department of Zoology, South Africa S. McLean --- Coastal Research Unit of Zululand, Department of Zoology, South AfricaAn unusually cold spell during the winter of 1987 caused a drop in water temperature at Lake St Lucia. This coupled with typical estuarine salinities in the lake resulted in a fish kill. The kill was one of the largest... -
A COMPARISON OF ALLOZYME HETEROZYGOSITY AND LIFE HISTORY VARIABLES IN FOUR STRAINS OF AFRICAN CATFISH (CLARIAS GARIEPINUS)
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: J. P. Grobler --- , , L. C. Hoffman --- , , South Africa J. F. Prinsloo --- , , South AfricaWe studied allozyme polymorphism and its relation to morphological characteristics in 122 individuals from four lines of African catfish. Starch gel electrophoresis was used to screen 26 loci, of which five were polymorphic. Average heterozygosity levels differed moderately among lines... -
Effects of selective defoliation and height of defoliation on tiller dynamics and herbage yield of Themeda triandra in a semi-arid rangeland in Zimbabwe
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S. Dube V.E.E. GwarazimbaUnderstanding the impacts of intensity and selection of grazing on the performance of grasses is important in the management of grazing areas. It is especially important in semi-arid environments where, apart from moisture, the levels at which grasses are utilized... -
Merino sheep responses to different stocking rates and seasonal variation under rangeland conditions of Lesotho
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: LM Mpiti-Shakhane GY Kanyama-Phiri WO Odenya JW BandaMerino sheep responses to stocking rates were determined over a one-year period. The experimental design consisted of three stocking rates; light (2.0ha LSU-1), moderate (1.25ha LSU-1) and heavy (0.5ha LSU-1) in a Randomised Complete Block Design with three replicates per... -
Fire and the dynamics of semi-arid grassland: influence on plant survival, productivity and water-use efficiency
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: H A SnymanThere is a lack of knowledge concerning the effect of fire behaviour on the vegetation dynamics of semi-arid climates. Arising from this, an investigation was initiated to characterise the behaviour of fires burning with the wind (head fire) and against... -
Short-term response of burnt grassland to defoliation in a semi-arid climate of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: HA SnymanThe impact of defoliation on the productivity and soil temperature of burnt grassland (head and back fires) was investigated over the short term (one and two growing seasons after burning). Head fires had greater flame height and rate of spread... -
A comparison of pod and seed characteristics, nutritive value, digestibility and seed survival in cultivars from different Medicago species fed to sheep
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T.N. Kotzé --- Department of Agriculture, Republic of South Africa T.S. Brand --- Department of Agriculture, Republic of South Africa G.A. Agenbag --- Department of Agronomy and Pasture Science, Republic of South AfricaThis study was conducted to compare pod and seed characteristics, nutritive value, digestibility and seed survival of intact medic pods after ingestion by sheep. Different diets comprising the intact pods of six cultivars of the medic species that are most... -
Micro‐site influence on seed longevity and seedling emergence of a bunchgrass (Themeda triandra) in a semi‐arid savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T.G. O'Connor --- Department of Range and Forage Resources, Republic of South AfricaThe influence of micro‐site (shaded, exposed, buried) on the seed longevity and seedling emergence of Themeda triandra was tested using experimental seed banks. Deep shade considerably reduced soil surface temperature. Seeds did not persist in any micro‐site for longer than... -
Impact of sustained drought on a semi‐arid Colophospermum mopane savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T.G. O'Connor --- Department of Range and Forage Resources, Republic of South AfricaVegetation change on different substrate types was measured over 15 years in semi‐arid Mopani Veld. Baseline data were collected in the terminal year (1982) of a decade of above‐average rainfall, whilst the period of monitoring was characterised by below‐average rainfall,... -
Short-term response of the encroacher shrub Seriphium plumosum to fire
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: HA Snyman --- Department of Animal, Wildlife and Grassland Sciences, South AfricaQuantification of the short-term impact of burning in terms of the encroacher shrub Seriphium plumosum and grass tuft mortality, seed germination of the shrub (field and seed bank), aboveground phytomass production, plant density and basal cover of the grass sward... -
Effect of a single fire on woody vegetation in Catchment IX, Cathedral Peak, KwaZulu-Natal Drakensberg, following extended partial exclusion of fire
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AD de Villiers --- Animal, Plant and Environmental Sciences, South Africa T O'Connor --- Grassland Node, South AfricaFire is a key driver in shaping and maintaining grasslands. Long-term exclusion of fire in moist grasslands has been attempted at Catchment IX (CIX) at Cathedral Peak since 1952. Vegetation was surveyed in 1952, 1973, 1986 and 2009. Woody colonisation... -
Promoting Inter-Relational Reflexivity with Psychosocial Workers in Community Work: A Case Study from Burundi
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yvonne Sliep --- School of Psychology, University of the University of KwaZulu-Natal, South Africa Andrew Gilbert --- Govan Mbeki Research and Development Centre, South AfricaWe explore the practice of creating reflexive spaces within community work with psychosocial workers living in Burundi and the Democratic Republic of the Congo. A central idea is inter-relational reflexivity—reflexivity within relationships that leads to collective action. Theoretical ideas related... -
The Gift of Growing Up in a Same-Gendered Family: A Case Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Carien Lubbe --- University of Pretoria,This article portrays the personal strengths of children growing up in same-gendered families from a positive psychological framework. One of the major challenges all children growing up in same-gendered families are faced with is the integration of their family experience... -
Teachers' Use of Memory-Box-Making to Provide Psychosocial Support in Their Pastoral Role
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Liesel Ebersöhn --- University of Pretoria, Ronél Ferreira --- University of Pretoria, Maria Mnguni --- University of Pretoria,This study investigated the use of memory-box-making by teachers in their pastoral role. Ten female teachers participated in the study. The site of the study is in a South African primary school in an urban informal settlement. We used multiple... -
Does Aircraft Noise Impair Learners' Reading Comprehension, Attention and Working Memory? A Pilot Study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Joseph Seabi --- University of the Witwatersrand, Paul Goldschagg --- University of the Witwatersrand, Kate Cockcroft --- University of the Witwatersrand,The study sought to determine whether the cognitive performance of learners is affected by exposure to aircraft noise. The cognitive performance (reading comprehension, attention and memory) of 174 learners aged 9–13 years (males = 69, females = 68; Unidentified =... -
Testimony of Children in the Criminal Justice Environment
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Johan Prinsloo --- University of South Africa,Child development and memory are of relevance to court testimony. There appears to be scant research pertaining to the competency of children as witnesses in criminal proceedings. However, there is concern in both the legal and psychological circles about the... -
Constructions of Masculinity, Mental Toughness and the Inexpressibility of Distress among a Selected Group of South African Veterans of the ‘Bush War’ in Namibia
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Diana Gibson --- University of the Western Cape,The study examined the manner in which conscripted combat veterans make meaning of their violent experiences during the apartheid-era ‘Bush War’ in the border area between Namibia and Angola. A total of 43 ex-combatants participated in the study (23 Afrikaans-speaking;... -
Moral Developmental Scale in Iranian Culture
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Davood Manavipour --- Islamic Azad University, IranThe study explored the structure of Moral Developmental Scale in Iranian Islamic culture. Participants were 380 Data were analyzed using Principal component analysis and Confirmatory Factor Analysis. Principal component analysis resulted in four components with Eigen values >1, which together... -
Normative Indicators for Xhosa Speaking Unskilled Workers on the Wechsler Memory Scale Associate Learning and Visual Reproduction Subtests
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lauren Fike --- Rhodes University, South Africa Jan Knoetze --- Rhodes University, South Africa Ann Shuttleworth-Edwards --- Rhodes University, South Africa Sarah Radloff --- Rhodes University, South AfricaThis study set out to provide preliminary cross-cultural normative data for educationally disadvantaged Black South African Xhosa individuals (N=33; age range = 18 to 40 years; highest educational level = Grade 11 or Grade 12), on the Associate Learning and... -
Ethnic Identification as Contributor to the Development of Moral Identity in Child-Headed Households
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jacqueline Pretorius --- Private Practice, Piet Retief, Susanne Jacobs --- North West University, South Africa Marie van Reenen --- North West University, South AfricaThis study explored whether ethnic membership was a core construct in the moral identity development of adolescents in Zulu child-headed households. A convenience sample of 60 participants (31 male and 29 female) were recruited for the study from a mixed... -
Homomorphisms of complete distributive lattices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A. Pultr J. Sichler V. TrnkováThe category of all complete distributive lattices and their complete homomorphisms is universal, and this is also true for the category of all complete distributive lattices whose morphisms preserve complete joins, finite meets and an additional nullary operation. A survey... -
Fully Trend Preserving Operators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: C.H. RohwerThe concept of fully trend preserving (ftp) operators on sequences was introduced to prove variation preservation on the outputs of LULU-separators. It turns out that this property is central in further analysis of compositions of LULU-smoothers, and other smoothers. Several... -
D-connectedness
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Kim-Quang TranThe aim of this paper is to study the categorical topological notion of connectedness in terms of a rather arbitrary class of morphisms in a category. We propose a general approach to the notion both at the morphism and the... -
On some binary codes from orthogonal geometry of characteristic two
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: B.G. RodriguesIn their natural primitive rank-3 action on the singular and non-singular points of the projective space of dimension 2m − 1, the simple orthogonal groups O ε 2m (F2), for ε = ±1 and m ≥ 3 have... -
On characterization of a Riesz homomorphism on C(X)-space
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Z. Ercan S. ÖnalLet X be a realcompact space. We present a very simple and elementary proof of the well known fact that every Riesz homomorphism π: C(X) → R is point evaluated. Moreover, the proof is given in ZF. -
Ideals in Heyting Semilattices and Open Homomorphisms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jorge Picado Aleš Pultr Anna TozziSubfitness and its relation to openness and completeness is studied in the context of Heyting semilattices. A formally weaker condition (c-subfitness) is shown to be necessary and sufficient for openness and completeness to coincide. For a large class of spatial... -
Isomorphisms into section spaces of Banach bundles
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Terje Hõim D.A. RobbinsLet X be a compact Hausdorff space, E a (real) Banach space, and let C(X, E) be the space of continuous functions from X to E. The monograph of Cembranos and Mendoza provides a primer on when C (X, E)... -
On the stabilizers of the minimum-weight codewords of some binary codes from graphs on triples
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: B.G. RodriguesWe determine the stabilizers of the minimum-weight codewords for the binary codes C 2(n) and C 2(n)⊥ obtained from an adjacency matrix of the graph A 2(n) for n ≥ 7 and odd, with vertex set Ω{3}, and adjacency defined... -
On Russell and Anti Russell-Cardinals
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Horst Herrlich --- , Germany Kyriakos Keremedis --- Department of Mathematics, Greece Eleftherios Tachtsis --- Department of Statistics and Actuarial-Financial Mathematics, GreeceIn the absence of the Axiom of Choice we study countable families of 2-element sets with no choice functions which either have infinite subfamilies with a choice function or no infinite subfamilies with a choice function. -
SPREAD UNIFORMITIES AND UNIFORM SPREADS
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Hlengani Slweya --- Department of Mathematics, University of the North, Sovenga, South Africa,We discuss a point-free analog of the topological fact that every uniformly continuous function on a dense subspace of a uniform space into a complete uniform space has a unique uniformly continuous extension. It is shown that a uniform frame... -
TRACES OF EPIMORPHISM CLASSES
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Lutz Schroder --- Department of Mathematics and Computer Science, University of Bremen, Bremen, Germany,Classes of morphisms that occur as preimages of the class of all epi-morphisms, of all extremal epimorphisms, respectively of all retractions under some faithful functor are characterized by suitable closure properties. The corresponding question for regular or strict epimorphisms is... -
Automatic Continuity of N-Homomorphisms between Banach Algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: TaherG. Honary --- , Iran H. Shayanpour --- , IranAn n-homomorphism between algebras is a linear map θ: A→B such that θ(a 1 a 2…an ) = θ(a1)θ(a2)…θ(an ) for all elements a 1,a 2…, an ∈ A. If A is a unital algebra it is known that every... -
Interior Operators and Topological Connectedness
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: G. Castellini --- Department of Mathematical Sciences, U.S.A. J. Ramos --- Department of Mathematical Sciences, U.S.A.A categorical notion of interior operator is used in topology to define connectedness and disconnectedness with respect to an interior operator. A commutative diagram of Galois connections is used to show a relationship between these notions and Arhangelskii and Wiegandt's... -
On algorithmic aspects of the l-torsion of Brauer groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Lin Wang --- School of Mathematical Sciences, P.R. China Mao-Zhi Xu --- School of Mathematical Sciences, P.R. ChinaWe study the algorithmic aspects of the l-torsion of the Brauer group Br(K) of a field K which contains the l-th roots of unity µ l, only provided with basic operations on the elements of K. We use a primitive... -
Schur spaces and weighted spaces of type H ∞
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Alejandro Miralles --- Instituto Universitario de Matemáticas y Aplicaciones de Castelló (IMAC), Departamento de Matemáticas, SpainWe extend some results related to composition operators on H υ(G) to arbitrary linear operators on H υ0(G) and H υ(G). We also give examples of rank-one operators on H υ(G) which cannot be approximated by composition operators. -
Codes related to line graphs of triangular graphs and permutation decoding
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Washiela Fish --- Department of Mathematics and Applied Mathematics, South Africa Khumbo Kumwenda --- Department of Mathematics and Applied Mathematics, South Africa Eric Mwambene --- Department of Mathematics and Applied Mathematics, South AfricaFor any prime p, we consider p-ary linear codes obtained from the row span of incidence matrices of line graphs of triangular graphs and adjacency matrices of their line graphs. We determine parameters of the codes, their automorphism groups and... -
The automorphism groups of domains in complex space: a survey
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: StevenG. Krantz --- Department of Mathematics, U.S.AWe consider recent developments in the study of automorphism groups of domains in complex space. Particular attention is paid to results with a basis in geometry. -
Superposition operators between weighted spaces of analytic functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Christopher Boyd --- School of Mathematical Sciences, Ireland Pilar Rueda --- Departamento de Análisis Matemático, Facultad de Matemáticas, SpainWe study the existence and the continuity of superposition operators between weighted spaces of holomorphic functions in terms of the weights. -
'But where are our moral heroes?' An analysis of South African press reporting on children affected by HIV/AIDS
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Helen Meintjes Rachel BrayMessages conveyed both explicitly and implicitly in the media play an important role in shaping the public's understanding of issues, as well as in shaping associated policy, programmes and popular responses to these issues. This paper applies discourse analysis to... -
Loveness and her brothers: trajectories of life for children orphaned by HIV/AIDS in Zambia
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: C Bawa YambaA central theme in the contemporary rhetoric of those charged with managing HIV/AIDS interventions is how to handle and alleviate the plight of orphans and other vulnerable children (OVCs). The many glossy documents describing the policy and action plans of... -
Psychological distress in the first year after diagnosis of HIV infection among women in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: BenjaminO OlleyCross-sectional studies on psychological responses associated with an HIV diagnosis are replete, but a paucity of research exists to evaluate the changes and stability of these responses, particularly among black African women. One hundred and five HIV-positive black and coloured... -
Reconceptualising vulnerable children by acknowledging their assets
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Irma Eloff Liesel Ebersöhn Jeandré ViljoenWe report on a study that sought to find alternative pathways to conceptualising vulnerable children. We have extracted a section from a longitudinal study that focuses on the ways in which vulnerable children in a rural community in South Africa... -
Evidence of AIDS mortality from an alternative source: A Swaziland case study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Alan Whiteside --- Health Economics and HIV/AIDS Research Division, South Africa Chris Desmond --- Health Economics and HIV/AIDS Research Division, South Africa John King --- , Swaziland Jane Tomlinson --- , Swaziland Conway Sithungo --- , SwazilandThis paper explores a way of measuring AIDS mortality in the absence of vital registration. It looks at the death notices in the major daily newspaper in Swaziland, The Times of Swaziland, and asks if these can be analysed to... -
Epidemiological and demographic HIV/AIDS projections: South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: ThomasM. Rehle --- , USA Olive Shisana --- , South AfricaThe Epidemic Projection Package (EPP) recently developed by the UNAIDS Reference Group on Estimates, Models and Projections and the Spectrum model program developed by the Futures Group were used to model the South African HIV epidemic, project future trends in... -
Perceptions of HIV/AIDS leaders about faith-based organisations’ influence on HIV/AIDS stigma in South Africa
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mpoe Johannah Keikelame --- Directorate of Primary Health Care, Faculty of Health Sciences, South Africa ColleenK Murphy --- , United States KarinE Ringheim --- , United States Sara Woldehanna --- , United StatesThe extent of the HIV pandemic—particularly in the hardest-hit countries, including South Africa—has prompted a call for greater engagement of all groups, including faith-based organisations (FBOs). Although FBOs are known to play a substantial role in providing care and support... -
Risk management in HIV/AIDS: ethical and economic issues associated with restricting HAART access only to adherent patients
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Richard Chawana --- , South Africa Donna Knapp van Bogaert --- , South AfricaLike many other developing nations, South Africa faces the challenge of mobilising resources in response to the HIV pandemic. There is a large budget gap between the ideal and the actual amount of funding needed to achieve universal access to... -
Youth mortality due to HIV/AIDS in South Africa, 2001–2009: An analysis of the levels of mortality using life table techniques
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Nicole De Wet --- Demography and Population Studies, South Africa Somefun Oluwaseyi --- Demography and Population Studies, South Africa Clifford Odimegwu --- Demography and Population Studies, South AfricaSouth Africa has one of the highest HIV/AIDS prevalence rates in the world. It is estimated that 5.38 million South Africans are living with HIV/AIDS. In addition, new infections among adults aged 15+ were reportedly 316 900 in 2011. New... -
The sublethal effects of zinc at different water temperatures on selected haematological variables in Oreochromis mossambicus
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PP Buthelezi V Wepener DP CyrusTrace metals such as zinc play an important role in the normal metabolic functioning of all organisms. However, metals can become toxic if background concentrations are exceeded in the environment. This study investigated the sublethal effects of zinc on the... -
Proportional growth and maturation in Penaeus indicus
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HFB ChampionA least squares estimation of inflected linear regression is used to interpret the relationships between carapace length (CL) and total length, abdominal length and abdominal width respectively, in Penaeus indicus and Metapenaeus monoceros. In both species well-defined inflection points with... -
Sublethal effects of manganese on the haematology and osmoregulation of Oreochromis mossambicus after acute exposure
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Barnhoorn JHJ van VuurenOreochromis mossambicus were exposed for 96 hours to sublethal manganese concentrations in a continuous flow-through system. The sublethal concentrations were determined from the LC50 value of manganese (1.723mg/l), which included a 10% (172.3mg/l), 15% (259.8mg/l) and 20% (345.6mg/l) concentration of... -
Genetic varaiation within and differentiation between Pseudobarbus quathlambae (Pisces, Cyprinidae) populations from the Senqunyane, Jordane and Bokong Rivers (Central Lesotho)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FH van der Bank JL Rall GJ SteynHorizontal starch-gel electrophoresis was used to obtain baseline genetic information on critically endangered Pseudobarbus quathlambae populations in the Senqunyane, Jordane and Bokong Rivers in the Lesotho Highlands. Allelic frequencies were similar between the populations and generations studied. However, allele classes... -
The application of a hydraulic biotope matrix to the assessment of available habitat: Potential application to IFRs and river health monitoring
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RA Wadeson KM RowntreeIn an attempt to meet the requirement of the new South African Water law a number of initiatives are under way to determine the flow requirements for our rivers. An essential component of this initiative is the determination of the... -
The biology of Barbus mattozi Guimaraes (Teleostei, Cyprinidae) in a Zimbabwean reservoir. 3. Numbers, biomass and mortality
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BG Donnelly BE MarshallThe population of B. mattozi in the Mtsheleli Dam, Zimbabwe, was estimated to be about 55 000 fish in July 1974 but fell to about 370 by June 1975. The total biomass followed a similar trend, reaching 2 000kg (43kg... -
Oualidia lagoon, Morocco: an estuary without a river
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: K Hilmi VG Koutitonsky A Orbi JI Lakhdar M ChagdaliThis study describes some physical oceanography features of an estuary maintained by fresh groundwater inflow. The mesoscale variability of currents, temperature and salinity are documented from moored current meter observations of 12 days duration at three stations. Current speeds exceeded... -
Growth, reproduction and population structure of Diplotaxodon limnothrissa in the southeast arm of Lake Malawi
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GeoffreyZ Kanyerere OlafLF Weyl AnthonyJ BoothDiplotaxodon limnothrissa is a widely distributed species occurring throughout Lake Malawi from the surface to a depth of at least 220m. It is probably the most abundant cichlid in the lake, with biomass estimates of around 87 000t in the... -
Fecundity and sexual maturity of the crab Macrophthalmus depressus (Brachyura: Ocypodidae) from Inhaca Island, Mozambique
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Carlos Litulo Adriano Macia FernandoLM MantelattoSome reproductive aspects of the ocypodid crab Macrophthalmus depressus, were investigated, with emphasis on fecundity and sexual maturity. Random intertidal crab samples taken in October 2002 were identified, sexed, measured, checked for the presence of eggs on female pleopods, dissected... -
The effect of copper and zinc at neutral and acidic pH on the general haematology and osmoregulation of Oreochromis mossambicus
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: G Nussey --- Department of Zoology, South Africa J HJ van Vuren --- Department of Zoology, South Africa HH du Preez --- Department of Zoology, South AfricaThe objective of this study was to determine the effect of sublethal copper and zinc concentrations at a neutral and an acidic pH, on selected haematological parameters as well as on the total osmolality and electrolyte concentrations of Oreochromis mossambicus... -
Reeds as indicators of nutrient enrichment in a small temporarily open/ closed South African estuary
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LRD Human --- Department of Botany, South Africa JB AdamsThis study investigated the use of δ15N levels in Phragmites australis reeds as an indicator of nutrient input into the small temporarily open/closed East Kleinemonde Estuary, Eastern Cape, South Africa. Nutrient (NH4 and SRP) concentrations decreased from the bank towards... -
Influence of salinity and cadmium on the survival and osmoregulation of Callianassa kraussi and Chiromantes eulimene (Crustacea: Decapoda)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Thwala --- Department of Zoology and Coastal Research Unit of Zululand, South Africa BK Newman --- Department of Zoology and Coastal Research Unit of Zululand, South Africa DP Cyrus --- Department of Zoology and Coastal Research Unit of Zululand, South AfricaThis study investigated the influence of salinity and cadmium on the survival and osmoregulatory capability of two decapod crustaceans, Callianassa kraussi and Chiromantes eulimene. Callianassa kraussi was able to survive in salinities of 5–55 over 96 h, whilst C. eulimene... -
Diversity patterns of temporary wetland macroinvertebrate assemblages in the south-western Cape, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MC Mlambo --- Freshwater Research Unit, Department of Zoology, South Africa MS Bird --- Freshwater Research Unit, Department of Zoology, South Africa CC Reed --- Freshwater Research Unit, Department of Zoology, South Africa JA Day --- Freshwater Research Unit, Department of Zoology, South AfricaAlthough macroinvertebrates are potentially useful for assessing the condition of temporary wetlands, little is yet known about them. Macroinvertebrate assemblages were assessed in 138 temporary wetlands in the south-western Cape, recording 126 taxa. However, predicted richness estimates were all higher... -
The influence of pool size on species diversity and water chemistry in temporary rock pools on Domboshawa Mountain, northern Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Anusa --- Tropical Resources Ecology Programme (TREP), Department of Biological Sciences, Zimbabwe HGT Ndagurwa --- Tropical Resources Ecology Programme (TREP), Department of Biological Sciences, Zimbabwe CHD Magadza --- Tropical Resources Ecology Programme (TREP), Department of Biological Sciences, ZimbabweThe effect of pool size (area and depth) on species diversity and physicochemical characteristics of rock pool habitats on Domboshawa Mountain, northern Zimbabwe, was studied from December 2006 to May 2007. Pools were categorised based on maximum depth. Pool duration... -
Phenotypic characterisation in interspecific and intergeneric hybrids of the clariid catfishes Heterobranchus longifilis, Clarias gariepinus and Clarias anguillaris in Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AA Akinwande --- Department of Fisheries Technology, Nigeria OA Fagbenro --- Department of Fisheries and Aquaculture, Nigeria OT Adebayo --- Department of Fisheries and Aquaculture, NigeriaThirty-nine morphometric and five meristic comparisons were carried out on 12-month-old interspecific and intergeneric hybrids of the African clariid catfishes Heterobranchus longifilis, Clarias gariepinus and Clarias anguillaris from experimental earthen ponds in Nigeria. Canonical discriminant analysis accounted for 89.4% of... -
Controls on the formation of Wakkerstroom Vlei, Mpumalanga province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: R Joubert --- Department of Environmental Science, South Africa WN Ellery --- Department of Environmental Science, South AfricaThe present study investigated controls on the formation of Wakkerstroom Vlei, an ∼1 000 ha unchannelled valley-bottom wetland on the South African Highveld. Along the uppermost and lowermost reaches of the wetland, where dolerite outcrops occur along the main valley,... -
Determining the minimum effective dose of rotenone for eradication of alien smallmouth bass Micropterus dolomieu from a South African river
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MS Jordaan --- CapeNature Scientific Services, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity, South AfricaIn February 2012 the Rondegat River, in the Cape Floristic Region, was the first river in South Africa where the piscicide rotenone was used to remove an alien invasive fish, smallmouth bass Micropterus dolomieu. In preparation for this treatment, the... -
Variations and changes in habitat, productivity, composition of aquatic biota and fisheries of the Kyoga lake system: lessons for management
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: R Ogutu-Ohwayo --- National Fisheries Resources Research Institute, Uganda K Odongkara --- National Fisheries Resources Research Institute, Uganda W Okello --- National Fisheries Resources Research Institute, Uganda D Mbabazi --- National Fisheries Resources Research Institute, Uganda SB Wandera --- National Fisheries Resources Research Institute, Uganda LM Ndawula --- National Fisheries Resources Research Institute, Uganda V Natugonza --- National Fisheries Resources Research Institute, UgandaThe Kyoga lake system, which is c. 4 m deep, originally had a diverse fish fauna, extensive macrophytes and wetlands. Most (82%) of its water comes from Lake Victoria, is controlled through three dams and has a short residence time... -
Morphometric sexing of Mediterranean Yellow-legged Gulls Larus michahellis michahellis breeding in the Gulf of Gabès, southern Tunisia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Abdessalem Hammouda --- Département des Sciences de la Vie, Faculté des Sciences de Gabès, Tunisia Slaheddine Selmi --- Département des Sciences de la Vie, Faculté des Sciences de Gabès, TunisiaDiscriminant analysis functions have previously been determined for sexing Mediterranean Yellow-legged Gulls Larus michahellis michahellis from the western Mediterranean basin. However, data from eastern Mediterranean populations are lacking. In this work, we used morphometric data from a sample of 81... -
An assessment of the impact of predation by Cape fur seals Arctocephalus pusillus pusillus on seabirds at Dyer Island, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Azwianewi B Makhado --- Branch Oceans and Coasts, Department of Environmental Affairs, South Africa Robert JM Crawford --- Branch Oceans and Coasts, Department of Environmental Affairs, South Africa Lauren J Waller --- CapeNature, South Africa Les G Underhill --- Animal Demography Unit, Department of Biological Sciences, South AfricaAt Dyer Island, South Africa, observations of predation of seabirds by Cape Fur Seals Arctocephalus pusillus pusillus were made during 2004 and 2006/07. It was estimated that seals killed about 7% of adult African Penguins Spheniscus demersus annually. This may... -
The vulnerable Osprey breeding population of the Al Hoceima National Park, Morocco: present status and threats
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Flavio Monti --- Centre d'Ecologie Fonctionnelle et Evolutive (CNRS UMR5175), France Houssine Nibani --- Association de Gestion Intégrée des Ressources (AGIR), Morocco Jean-Marie Dominici --- Rèserve Naturelle Scandola, Parc Naturel Règional de Corse, France Hamid Rguibi Idrissi --- University Chouaib Doukkali, Faculty of Sciences, Morocco Mathieu Thévenet --- , France Pierre-Christian Beaubrun --- Centre d'Ecologie Fonctionnelle et Evolutive (CNRS UMR5175), France Olivier Duriez --- Centre d'Ecologie Fonctionnelle et Evolutive (CNRS UMR5175), FranceIn the Mediterranean, most areas belonging to the initial distribution range of the Osprey Pandion haliaetus have been lost and local populations have disappeared in recent decades because of persecution. Even though direct management actions have allowed local partial recovery,... -
The Structure of Cellulose by Conformational Analysis.
Item type: Journal Article • Journal: South African Forestry Journal • Authors: A. Pizzi --- , N. Eaton --- ,Conformational analysis studies on the tertiary structure of cellobiose and methyl-β-cellobioside were carried out by using calculations of Van der Waals, H-bond, electrostatic and torsional energy interactions between the atoms and groups of the molecules. Energy maps in function of... -
The Structure of Cellulose by Conformational Analysis.
Item type: Journal Article • Journal: South African Forestry Journal • Authors: A. Pizzi --- Council for Scientific and Industrial Research, South Africa N. Eaton --- Council for Scientific and Industrial Research, South AfricaThe Meyer/Misch and related models were found to be the most energetically stable for the crystalline structure of cellulose I. The cellobioside structure is the monomer of cellulose I as structures having cellobiose as monomer have been proven to be... -
Road Building and the Survival of Indigenous Forest in the Southern Cape
Item type: Journal Article • Journal: South African Forestry Journal • Authors: C.J. Geldenhuys --- Saasveld Forestry Research Centre, D. Kotze --- Van Wyk and Louw Consulting Engineers, C.J. van der Merwe --- Saasveld Forestry Research Centre,The effects of road building activities on indigenous evergreen forest were investigated to quantify the impact, to provide guide-lines for minimising damage to forests during future road projects and to gain understanding of the response of different species. The investigation... -
Dynamics of the Fishery for Galjoen Dichistius Capensis, With an Assessment of Monitoring Methods
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C. G. AttwoodThe dynamics of the fishery for galjoen Dichistius capensis were investigated at four sites in South Africa from 1987 to 2000. At three sites, which were protected from fishing, Koppie Alleen, Lekkerwater (both in the De Hoop Marine Protected Area)... -
Identity and distribution of southern African sciaenid fish species of the genus Umbrina
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Hutchings MH GriffithsTwo Umbrina species, U. canariensis Valenciennes 1843 and U. robinsoni Gilchrist and Thompson 1908, are recognised from southern Africa. The latter species was hitherto believed to be a synonym of Umbrina ronchus Valenciennes 1843 (type locality Canary Islands). U. canariensis... -
Foraging of a coastal seabird: flight patterns and movements of breeding Cape gannets Morus capensis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NJ Adams RA NavarroCape gannets Morus capensis are predatory seabirds in the coastal waters of southern Africa where they feed on commercially important fish species. Using a combination of intensive monitoring at nest sites, tracking of radio-tagged birds and diet sampling, we determined... -
Wintering seabirds in West Africa: foraging hotspots off Western Sahara and Mauritania driven by upwelling and fisheries
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CJ Camphuysen J van der MeerCold-water upwelling supports abundant and diverse faunas. Upwelling off Mauritania has been highlighted as being important for seabirds, but very few systematic offshore surveys have been conducted in that region. Mauritanian waters are increasingly targeted by commercial fisheries along the... -
Salmon mortalities associated with a bloom of Alexandrium fundyense in 2003 in the Bay of Fundy, and subsequent early warning approaches for industry
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JL Martin MM LeGresley K Haya DH Sephton LE Burridge FH Page BD ChangIn early September 2003, >3.0 × 105 cells l−1 of Alexandrium fundyense were detected in close proximity to salmon aquaculture sites near Grand Manan Island in the Bay of Fundy, eastern Canada. High concentrations persisted throughout the month, peaking to... -
Impact of predation by Cape fur seals Arctocephalus pusillus pusillus on Cape gannets Morus capensis at Malgas Island, Western Cape, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AB Makhado RJM Crawford LG UnderhillCape fur seals Arctocephalus pusillus pusillus were estimated to kill some 6 000 Cape gannet Morus capensis fledglings around Malgas Island in the 2000/01 breeding season, 11 000 in 2003/04 and 10 000 in 2005/06. This amounted to about 29%,... -
Life-history strategies of Umbrina robinsoni (Sciaenidae) in warm-temperate and subtropical South African marine reserves
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Hutchings --- Zoology Department and Marine Biology Research Centre, South Africa MH Griffiths --- Department of Environmental Affairs and Tourism, South AfricaBiological data for Umbrina robinsoni were obtained from fish sampled monthly during 2001–2002 by shore-angling in the warm-temperate De Hoop Marine Protected Area (MPA) (n = 312), and by means of spearfishing during three trips (May, September and January 2001–2002)... -
Killer whales in South African waters—a review of their biology
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PB Best --- Mammal Research Institute, South Africa MA Meÿer --- Department of Environmental Affairs, South Africa C Lockyer --- , DenmarkThe distribution, seasonality and schooling behaviour of killer whales Orcinus orca in South African waters have been investigated from 785 records compiled between 1963 and 2009, and their size, morphometrics, growth, reproduction, food and feeding behaviour described from the examination... -
Broad-scale distribution patterns of sardine and their predators in relation to remotely sensed environmental conditions during the KwaZulu-Natal sardine run
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SH O’Donoghue --- School of Biological and Conservation Sciences, South Africa L Drapeau --- , France VM Peddemors --- School of Biological and Conservation Sciences, South AfricaThe annual movement of South African sardine Sardinops sagax up the east coast of South Africa, known as the ‘sardine run’, was investigated using data from aerial surveys for the period 1988–2005 and compared with remotely sensed sea surface temperature... -
The KwaZulu-Natal sardine run: shoal distribution in relation to nearshore environmental conditions, 1997–2007
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SH O’Donoghue --- School of Biological and Conservation Sciences, South Africa L Drapeau --- , France SFJ Dudley --- , South Africa VM Peddemors --- School of Biological and Conservation Sciences, South AfricaThe nearshore presence of sardine Sardinops sagax on the KwaZulu-Natal (KZN) coast was investi-gated using sightings data collected by the KZN Sharks Board from 1997 to 2007. The spatio-temporal distribution of sardine was described in relation to that of their... -
Assessment of South African Umbrina robinsoni based on per-recruit models
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Hutchings --- Zoology Department and Marine Biology Research Centre, South Africa MH Griffiths --- Ministry of Fisheries, New ZealandSlender baardman Umbrina robinsoni are an important component of recreational shore-angler and spearfisher catches along the eastern seaboard of South Africa. Stocks of U. robinsoni at three sites—False Bay, Stil Bay and the KwaZulu-Natal (KZN) coast—were modelled using a per-recruit... -
Conus pennaceus: a phylogenetic analysis of the Mozambican molluscan complex
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CM Pereira --- , Portugal J Rosado --- , Mozambique SG Seabra --- , Portugal F Pina-Martins --- , Portugal OS Paulo --- , Portugal PJ Fonseca --- , PortugalThe genus Conus has over 500 species and is the most species-rich taxon of marine invertebrates. Based on mitochondrial DNA, this study focuses on the phylogenetics of Conus, particularly the pennaceus complex collected along the Mozambican coast. Phylogenetic trees based... -
Aspects of the biology and fisheries of an economically important sparid Dentex macrophthalmus (Bloch 1791) in the Namibe province, Angola
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WM Potts --- Department of Ichthyology and Fisheries Science, PO Box 94, South Africa LA Inácio --- , Angola CV Santos --- , Angola TJ Richardson --- Department of Ichthyology and Fisheries Science, PO Box 94, South Africa WHH Sauer --- Department of Ichthyology and Fisheries Science, PO Box 94, South AfricaThe sparid Dentex macrophthalmus is a widespread, important fishery species along most of the West African coast from southern Namibia to the Mediterranean. In southern Angola it is an important artisanal species targeted predominantly by handline fishers. A biological and... -
Early post-release survival of stranded Cape fur seal pups at Black Rocks, Algoa Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GJG Hofmeyr --- , South Africa M du Toit --- , South Africa SP Kirkman --- Department of Environmental Affairs, South AfricaThe small and isolated Cape fur seal Arctocephalus pusillus pusillus rookery at Black Rocks, Algoa Bay, South Africa, is an important component of the marine biota of the Addo Elephant National Park. Although little is known of the demographics of... -
Growth and survival of the South African scallop Pecten sulcicostatus in suspended culture
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DCZ Arendse --- Department of Agriculture, Forestry and Fisheries, South Africa GC Pitcher --- Department of Agriculture, Forestry and Fisheries, South AfricaGrow-out studies of the scallop Pecten sulcicostatus, endemic to the South African coast, contribute to an investigation of the suitability of this species for commercial culture. Hatchery-reared juvenile scallops were placed in a suspended culture system at 5 m depth... -
Effects of chemicals from longline baits on the biting behaviour of loggerhead sea turtles
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Piovano --- Dipartimento di Biologia Animale e dell'Uomo, Italy A Farcomeni --- Dipartimento di Sanità Pubblica e Malattie Infettive, Italy C Giacoma --- Dipartimento di Biologia Animale e dell'Uomo, ItalyThe biting behaviour of the loggerhead sea turtle Caretta caretta, a high bycatch species by longline fishing gear, was studied on 30 wild specimens held temporarily at rescue centres. To account for repeated measures, the data were analysed using mixed-effects... -
Catch-and-release angling mortality of south-eastern Australian Pomatomus saltatrix
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MK Broadhurst --- NSW Department of Primary Industries, Fisheries Conservation Technology Unit, Australia PA Butcher --- NSW Department of Primary Industries, Fisheries Conservation Technology Unit, Australia BR Cullis --- School of Mathematics and Applied Statistics, Faculty of Informatics, AustraliaPomatomus saltatrix (Pomatomidae) is important to several recreational fisheries around the world, most of which regulate exploitation via legal size limits and quotas. However, the inherent assumption of minimal impacts to released P. saltatrix has only been tested across limited... -
Impact of protective shark nets on sea turtles in KwaZulu-Natal, South Africa, 1981–2008
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: W Brazier --- Department of Zoology, South Africa R Nel --- Department of Zoology, South Africa G Cliff --- , South Africa S Dudley --- , South AfricaShark nets were established along the KwaZulu-Natal coast in 1952 to protect bathers against shark encounters. Sea turtle bycatch data for the period 1981–2008 in these shark nets indicated that loggerheads Caretta caretta were caught most frequently at 40.9 y–1... -
A review of the Oceanographic Research Institute's Cooperative Fish Tagging Project: 27 years down the line
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SW Dunlop --- , South Africa BQ Mann --- , South Africa RP van der Elst --- , South AfricaThe Oceanographic Research Institute's (ORI) Cooperative Fish Tagging Project was initiated in 1984 and is one of the most enduring and successful environmental projects of its kind in South Africa. By the end of 2011, 5 130 anglers had joined... -
The effects of barotrauma on five species of South African line-caught fish
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SE Kerwath --- Fisheries Research, Department of Agriculture, South Africa CG Wilke --- Fisheries Research, Department of Agriculture, South Africa A Götz --- Elwandle Node, South African Environmental Observation Network (SAEON), South AfricaManagement measures for South African line-caught fish include output controls such as closed seasons, bag and size limits and no-take moratoria. The main condition for these measures to be effective is that undesirable catches can be successfully released. However, most... -
Physical damage, behaviour and post-release mortality of Argyrosomus japonicus after barotrauma and treatment
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PA Butcher --- New South Wales Department of Primary Industries, Australia MK Broadhurst --- New South Wales Department of Primary Industries, Australia BR Cullis --- School of Mathematics and Applied Statistics, Faculty of Informatics, Australia SR Raidal --- School of Animal and Veterinary Sciences, AustraliaTwo experiments were conducted to quantify the mortality of, and clinical signs of barotrauma to, Argyrosomus japonicus after retrieval from 20 m following either ‘no treatment’, ‘venting’ (a needle inserted into the swim bladder) or ‘recompression’ (released with a weighted... -
Cannibalistic interactions of juvenile mud crabs Scylla serrata: the effect of shelter and crab size
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: OD Mirera --- Kenya Marine and Fisheries Research Institute (KMFRI), Kenya P-O Moksnes --- University of Gothenburg, SwedenIn the culture of mud crab Scylla serrata, cannibalism is often the greatest cause of mortality. A laboratory study was conducted to compare the influence of size class differences and shelter on cannibalism and limb loss in juvenile mud crabs... -
The influence of fire on a southern Cape mountain forest
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: L.H. Watson --- Department of Nature Conservation, M.J. Cameron --- Department of Nature Conservation,Afromontane forests in the southern Cape are surrounded by fire-prone fynbos. Although the presence of charcoal in Afromontane forests indicate that they do burn, little is known about the influence of fire on the dynamics of these forests. We compared... -
Critical water stress levels in Pinus patula seedlings and their relation to measures of seedling morphology
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: CA Rolando --- , New Zealand NW Pammenter --- , South Africa KM Little --- , South AfricaA pot trial was implemented to determine the effect of soil water stress following transplanting on shoot water potential and stomatal conductance of Pinus patula seedlings. The relationship of seedling morphology to measures of water stress was also investigated. The... -
Growth response at age 10 years of five Eucalyptus genotypes planted at three densities on a drought-prone site in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Jacob Crous --- Sappi Forests, South Africa Louisa Burger --- Department of Forest and Wood Science, South Africa Giovanni Sale --- Sappi Forests, South AfricaSouth Africa's climate is characterised by the occurrence of regular droughts. An assessment of drought mortality in KwaZulu-Natal during 1999 could not provide accurate information regarding the effect of species or planting density on mortality because of confounding species-site allocations... -
Paediatric antiretroviral treatment programmes in sub-Saharan Africa: a review of published clinical studies
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mary-Ann Davies --- Infectious Diseases Epidemiology Unit, School of Public Health and Family Medicine, South Africa Matthias Egger --- , Switzerland Olivia Keiser --- , Switzerland Andrew Boulle --- Infectious Diseases Epidemiology Unit, School of Public Health and Family Medicine, South AfricaKnowledge of the experience and outcomes of current paediatric antiretroviral treatment (ART) programmes in sub-Saharan Africa can inform new programmes in the region as well as enhance existing ones. This is urgently needed to facilitate the scale-up of treatment, which... -
Large allozyme variation within populations and isozyme differences between Clarias gariepinus and C. ngamensis from the Okavango Delta, Botswana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Herman van der Bank Nico SmitAn allozyme study of 47 Clarias gariepinus and 53 C. ngamensis individuals revealed variation at 11 (57.9%) and eight (40%), out of 19 and 20 loci, respectively. The average heterozygosity of 0.167, 57.9% polymorphism and average of 1.895 alleles at... -
A chronic toxicity test protocol using Caridina nilotica (Decapoda: Atyidae) and the generation of salinity toxicity data
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AR Slaughter CG Palmer WJ MullerSalinization of freshwater resources is an increasing global problem, yet there is a paucity of chronic salinity tolerance data linked to very few chronic toxicity test protocols. This research aimed to generate a chronic toxicity test protocol and protective salinity... -
Does Serranochromis altus (Teleostei: Cichlidae) exist in the Okavango Delta, Botswana?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FH van der Bank M Wink M Soekoe N SmitTwo possibly synonymous fish species in the Okavango Delta, Botswana, Serranochromis altus and S. angusticeps, were compared. Ecological data, morphometrics, meristics, allozymes, and genomic fingerprints — generated with six Inter-Simple Sequence Repeat (ISSR) analyses, and DNA barcoding primers — were... -
Sexual dimorphism in two pure cichlid species, Oreochromis niloticus niloticus (Linnaeus 1758) and Sarotherodon melanotheron melanotheron Rüppel 1852, and their intergeneric hybrids
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Toguyéni B Fauconneau C Mélard A Fostier J Lazard E Baras ER Kühn S van der Geyten J-F BaroillerGrowth performances and sexual growth dimorphism were compared in two pure species of tilapia, Oreochromis niloticus niloticus (OO) and Sarotherodon melanotheron melanotheron (SS), and their reciprocal intergeneric hybrids (male O. n. niloticus × female S. m. melanotheron [OS] and male... -
Management of avian cholera Pasteurella multocida outbreaks on Dyer Island, South Africa, 2002–2005
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LJ Waller LG UnderhillIn 2002 there was a widespread epizootic involving seabirds on five of the offshore islands of the Western Cape, South Africa. Since then, avian cholera Pasteurella multocida outbreaks have been occurring annually on one of these islands, Dyer Island. This... -
Comparative morphology of the oropharyngeal cavity of clinid fish (Perciformes: Clinidae), with particular attention to the form, number and distribution of taste buds, and dentition
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: O Gon L Fishelson Y DelareaThe present study compares the form, number and distribution of taste buds (TB) in the oropharyngeal cavity (OC) of 17 species of clinid fish (Perciformes, Blennioidei, Clinidae) from different geographical regions (Australia, Taiwan, South Africa), and includes observations on dentition... -
Comparison of the effects of different linefishing methods on catch composition and capture mortality of South African temperate reef fish
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Götz SE Kerwath CG Attwood WHH SauerThe effects of hook size, bait type, water depth and fishing effort on the selectivity and capture mortality of reef fish were investigated in a standardised fishing experiment on the temperate south coast of South Africa. A total of 2... -
Population structure and growth of polydorid polychaetes that infest cultured abalone Haliotis midae
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CA Simon AJ BoothPolydorid polychaetes can infest cultured abalone thereby reducing productivity. In order to effectively control these pests, their reproductive biology must be understood. The population dynamics and reproduction of polydorids infesting abalone Haliotis midae from two farms in South Africa is... -
Using baseline biological and ecological information to design a Traffic Light Precautionary Management Framework for leerfish Lichia amia (Linnaeus 1758) in southern Angola
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: WM Potts WHH Sauer A-R Childs ADC DuarteThe coastline of southern Angola is sparsely populated and, largely because of a protracted civil war, has very lightly exploited inshore fish stocks. This has provided the almost unprecedented opportunity to determine prefishing-state reference points and to implement management strategies... -
Divergent trends in bank cormorants Phalacrocorax neglectus breeding in South Africa's Western Cape consistent with a distributional shift of rock lobsters Jasus lalandii
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJM Crawford AC Cockcroft BM Dyer L UpfoldIn South Africa's Western Cape Province, numbers of bank cormorants Phalacrocorax neglectus breeding at 11 localities decreased from above 500 pairs during 1978–1987 to 350 pairs from 1995 to 2006. The most northern colony (Lambert's Bay) was extinct by 1999... -
Influences of the abundance and distribution of prey on African penguins Spheniscus demersus off western South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJM Crawford LG Underhill JC Coetzee T Fairweather LJ Shannon AC WolfaardtOff South Africa, anchovy Engraulis encrasicolus and sardine Sardinops sagax are the main prey of African penguins Spheniscus demersus. The combined spawner biomass of these fish increased from less than one million t in 1996 to more than nine million... -
Implications for seabirds off South Africa of a long-term change in the distribution of sardine
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJM Crawford PS Sabarros T Fairweather LG Underhill AC WolfaardtFrom 1997 to 2005, the distribution of sardine Sardinops sagax, an important prey item for four seabirds off South Africa, shifted 400 km to the south and east, influencing its availability to breeding birds. It became progressively less available to... -
Status of the estuarine-dependent riverbream Acanthopagrus berda (Sparidae) harvested by the multi-sectoral fishery in Kosi Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: N James NG Hall LE Beckley BQ Mann WD RobertsonA stock assessment was undertaken for the tropical sparid Acanthopagrus berda harvested in the Kosi Bay estuarine system, northern KwaZulu-Natal, South Africa, by a multi-sectoral fishery using traditional traps and gillnets, and recreational angling using rod-and-line. Input parameters used in... -
Morphological identification of primary settlers and post-larvae of three mussel species from the coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Bownes NP Barker CD McQuaidThe study of mussel settlement and recruitment requires the ability to identify the larvae of co-existing species. On the south coast of South Africa, an introduced (Mytilus galloprovincialis) and two indigenous (Choromytilus meridionalis and Perna perna) mussel species co-exist and... -
Effects of herbivore grazing on the physiognomy of the coralline alga Spongites yendoi and on associated competitive interactions
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GW Maneveldt DW KeatsThe territorial gardening limpet Scutellastra cochlear occurs along the south and southern west coasts of South Africa, whereas one of its primary food items, the encrusting coralline alga Spongites yendoi, extends much farther north along the West Coast. A combined... -
Genetic characterisation of oyster populations along the north-eastern coast of Tunisia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Dridi MS Romdhane S Heurtebise ElM Cafsi P Boudry S LapègueThe taxonomy of oysters has been traditionally based on characteristics of the shell. More recently, the analysis of protein and DNA polymorphism has provided a means to overcome difficulties in distinguishing the different species of oysters based solely on shell... -
Selected fishery and population parameters of eight shore-angling species in the Tsitsikamma National Park no-take marine reserve
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Götz PD Cowley H WinkerAn eight-year research angling dataset collected between February 1998 and December 2005 in the Tsitsikamma National Park marine protected area (MPA), along the south-eastern Cape coast of South Africa, was examined to provide estimates of important fishery and population parameters... -
Review of the rescue, rehabilitation and restoration of oiled seabirds in South Africa, especially African penguins Spheniscus demersus and Cape gannets Morus capensis, 1983–2005
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AC Wolfaardt AJ Williams LG Underhill RJM Crawford PA WhittingtonSouth Africa is a global hotspot for oil pollution. The regional oiled seabird cleaning centre, the South African Foundation for the Conservation of Coastal Birds (SANCCOB), has handled over 50 000 seabirds from its inception in 1968 until 2005. The... -
On the Hopf-James Homomorphism over B
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Michihiro SakaiWe define the Hopf-James homomorphism and the Whitehead product in the category of fibrewise pointed spaces over B. Making use of them, we generalize Hardie-Jansen's result and obtain that a version of the generalized Hopf construction gives rise to an... -
Epimorphisms of metric frames
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Bernhard Banaschewski Aleš PultrThis paper deals with several aspects of epimorphisms in the category MFrm of metric frames and contractive homomorphisms. In particular, it is shown that i. the epicomplete metric frames are uniquely determined by the power-set lattices of sets,... -
Pairings of Sheaves of A-Modules
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Anastasios Mallios PatriceP. NtumbaIt is proved that for any free A-modules F and ε of finite rank on some C-algebraized space (X,A) a degenerate A-bilinear morphism Φ : F × ε → A induces a non-degenerate A-bilinear morphism Φ : F/ε ⊥ ×... -
On Almost f-Algebras
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mohamed Ali ToumiFor an Archimedian vector lattice A and a Dedekind complete vector lattice B, it is shown that if a positive bimorphism ψ0 from A × A to B satisfies the (AF) property (the image of each pair of disjoint elements... -
Characterization of Vector Fields on the Frölicher Standard n-Simplex, Imbedded in R n , and Hamiltonian Formalism on Differential Spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: PatriceP. Ntumba AugustinT. BatubengeThis paper is an attempt to the symplectization of smooth unusual, but standard imbedded subspaces of R n like a n-simplex, for the purpose of modelling Hamiltonian and Lagrangian systems thereon. We show that these subspaces are obtained by the... -
An Answer to a Question on the Affine Bijections on C(X, I)
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Zafer Ercan Süleyman ÖnalA complete description of the bijective affine map on C(X, I) is given. This provides an answer to a question of [2] on the affine bijections on C(X, I). -
Jordan homomorphisms between algebras of measurable operators
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Martin WeigtWe prove that every self-adjoint algebra homomorphism between algebras of measurable operators is continuous and can be expressed as a sum of a self-adjoint algebra homomorphism as well as a self-adjoint algebra anti-homomorphism. We also provide sufficient conditions under which... -
Designs from the groups PSL2(q) for certain q
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M.R. Darafsheh --- School of Mathematics, College of Science, Iran A. Iranmanesh --- Department of Mathematics, Faculty of Basic Sciences, Iran R. Kahkeshani --- Department of Mathematics, Faculty of Basic Sciences, IranUsing primitive actions of the projective special linear groups PSL2(q), q = 37, 41, 43, 47 and 49 some 1-designs are constructed. The automorphism group of all the constructed designs are found. It is shown that all subgroups of the... -
Phenotypic variation among five provenances of Pterocarpus angolensis in Zimbabwe and Zambia
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: E Chisha-Kasumu S Woodward A PriceThe feasibility of utilising morphological markers for determining existing provenance variation in the African savanna tree Pterocarpus angolensis was assessed. Five provenances were used: Mtao, Gokwe, Nyazura, Chesa (Zimbabwe) and Kapirimposhi (Zambia). Two weeks after germination, seedlings were inoculated with... -
Understanding and adding value to Eucalyptus fibre
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: CRE Clarke B Palmer D GoundenEucalyptus wood has become one of the most important hardwood resources for pulp mills worldwide. Furthermore, bleached Eucalyptus pulp is used extensively both in paper-making globally where it is included in such diverse products as tissue, packaging, as well as... -
Confirmation of the occurrence of a second killer whale morphotype in South African waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PB Best --- Mammal Research Institute, Whale Unit, South Africa MA Meÿer --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa M Thornton --- Mammal Research Institute, Whale Unit, South Africa PGH Kotze --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa SM Seakamela --- Branch: Oceans and Coasts, Department of Environmental Affairs, South Africa GJG Hofmeyr --- Port Elizabeth Museum at Bayworld, Port Elizabeth, and Department of Zoology, South Africa S Wintner --- KwaZulu-Natal Sharks Board, Umhlanga Rocks, and Biomedical Resource Unit, South Africa CD Weland --- Canadian Centre for DNA Barcoding, Biodiversity Institute of Ontario, Canada D Steinke --- Canadian Centre for DNA Barcoding, Biodiversity Institute of Ontario, CanadaKiller whales Orcinus orca occur worldwide in a number of morphotypes that differ in size, pigmentation, acoustic behaviour, food type and genetics – some may indeed warrant subspecific or even specific status. Until recently, all killer whales in South African... -
Estimating scavenger and search bias for collision fatality surveys of large birds on power lines in the Karoo, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Maurice Schutgens --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa Jessica M Shaw --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa Peter G Ryan --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South AfricaBird collision mortality associated with power lines is a global conservation challenge, but periodic carcass counts along power lines underestimate actual mortality because of survey biases. We conducted a scavenger trial over 90 days and three observer detection trials after... -
Post-mortem examination and sampling of African flamingos (Phoenicopteridae) under field conditions
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John E Cooper --- Faculty of Veterinary Medicine, Kenya Amy E Deacon --- Centre for Biological Diversity, UK Thomas Nyariki --- African Union–Interafrican Bureau for Animal Resources, KenyaRecent largely unexplained deaths in African flamingos have prompted the need for standard, reproducible methods for the post-mortem examination of these birds, for the taking of samples and for the recording of findings. Here we describe suitable techniques and present... -
Invasive Australian crayfish Cherax quadricarinatus in the Sanyati Basin of Lake Kariba: a preliminary survey
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LT Marufu --- University of Zimbabwe, Zimbabwe C Phiri --- University Lake Kariba Research Station, Zimbabwe T Nhiwatiwa --- University of Zimbabwe, ZimbabweThe invasion of Cherax quadricarinatus, the Australian redclaw crayfish, in the Sanyati Basin of Lake Kariba, Zimbabwe, is reported. A total of 79 crayfish were caught at 10 out of 12 sampling sites in the Sanyati Basin in November–December 2012... -
Atypical femoral fractures
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: I Butler --- Division of Geriatrics, Department of Medicine, B Tipping --- Division of Geriatrics, Department of Medicine, R Bhaga --- Division of Orthopaedics, Department of Surgery, -
Recommendations for the acute and long-term medical management of low-trauma hip fractures
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: B Cassim --- Department of Geriatrics, S Lipschitz --- Private Practice, F Paruk --- Division of Medicine, B Tipping --- Division of Geriatric Medicine, Department of Medicine,Hip fractures are the most serious complication of osteoporosis and are associated with high morbidity and mortality. Generally, patients who sustain osteoporotic hip fractures are older adults who have a number of co-morbid diseases which predispose them to perioperative complications,... -
Polycystic ovary syndrome
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: S Maharaj --- Department of Endocrinology and Metabolism, Division of Medicine, South Africa A Amod --- Department of Endocrinology and Metabolism, Division of Medicine, South Africa -
Morphine sparing effect of low dose ketamine during patient controlled analgesia
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: FJ Smith --- Department of Anaesthesiology, CGJ Briel --- Department of Anaesthesiology, PJ Becker --- Unit for Biostatistics, South AfricaObjective: To compare the quality of intravenous patient controlled analgesia (PCIA) of low dose morphine plus ketamine with morphine. Design: Double blind case control study. Setting: Academic hospital. Patients: Thirty-six patients scheduled for elective abdominal hysterectomy were randomly divided into... -
Anaesthesia for a morbidly obese patient with schizophrenia and intellectual disability
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Y Asahi --- Department of Dentistry, Japan Y Kawai --- Department of Anesthesia, Japan M Sugimoto --- Department of Anesthesia, Japan T Suzuki --- Department of Anesthesia, Japan S Omichi --- Department of Dentistry, Japan J Kotani --- Department of Anesthesiology, JapanWe report the case of a morbidly obese woman with schizophrenia and intellectual disability who underwent dental treatment using general anaesthesia. The 38-year-old patient was 156 cm tall and weighed 140 kg, with a body mass index of 57.5 kg... -
Acute subarachnoid haemorrhage and the mysterious electrocardiogram
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: D Nevin --- Department of Anaesthesia, South Africa D Lines --- Department of Anaesthesia, South AfricaSubarachnoid haemorrhage (SAH) is a devastating neurological insult, and is increasingly understood as a multi-system condition initiated in the central nervous system. Perioperative investigation of patients presenting for aneurysm surgery often includes a routine electrocardiogram (ECG) which frequently reveals an... -
Safety of pain control with morphine: new (and old) aspects of morphine pharmacokinetics and pharmacodynamics
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: JF Coetzee --- Department of Anesthesiology and Critical Care,Background: A 26-year-old, 59 kg female was administered morphine 10 mg during tonsillectomy, and 5 mg in the recovery room. She died 5 hours after the operation. Hypoxic cerebral injury, arising from morphine side-effects, was pronounced the cause of death,... -
The where, what and how of paediatric central venous access
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: RM Gray --- Red Cross Children's Hospital, University of Cape Town,This review aims to help practitioners positioning central venous catheters (CVCs) in paediatric patients to make informed decisions about the site, insertion technique, type of catheter to use, and care of the CVC. -
Comparison of ultrasound-guided vs. anatomical landmark-guided cannulation of the femoral vein at the optimum position in infant
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: AA Eldabaa --- Anaesthesia and PSIU, Faculty of Medicine, Egypt AS Elgebaly --- Anaesthesia and PSIU, Faculty of Medicine, Egypt AAA Elhafz --- Anaesthesia and PSIU, Faculty of Medicine, Egypt AS Bassuni --- Anaesthesia and PSIU, Faculty of Medicine, EgyptBackground: Femoral vein cannulation can be a routine process during major surgery in infants and children, and may prove to be lifesaving under certain conditions. This study compared ultrasound (US)-guided cannulation of the femoral vein in infants with the traditional... -
New trends in the management of postpartum haemorrhage
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: RA Dyer --- Department of Anaesthesia, AD Vorster --- Department of Anaesthesia, MJ Arcache --- Department of Anaesthesia, M Vasco --- Unisanitas and Clinica Reina Sofia, Colombia -
Dose scaling for the morbidly obese
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: JF Coetzee --- Department of Anesthesiology and Critical Care, -
The association between preoperative clinical risk factors and in-hospital strokes and death following carotid endarterectomy in South African patients
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Yoshan Moodley --- Perioperative Research Group, Department of Anaesthetics, Nelson R Mandela School of Medicine, Bruce M. Biccard --- Perioperative Research Group, Department of Anaesthetics, Nelson R Mandela School of Medicine,Background: Current surgical management of carotid artery disease includes carotid endarterectomy (CEA). In-hospital strokes and death following CEA might be associated with preinduction blood pressure (BP) measurements and other clinical risk factors. -
The treatment of perioperative myocardial infarctions following noncardiac surgery
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: L Ryan --- Perioperative Research Unit, Department of Anaesthetics, RN Rodseth --- Perioperative Research Unit, Department of Anaesthetics, BM Biccard --- Perioperative Research Unit, Department of Anaesthetics,Background: Perioperative myocardial infarction (PMI) is a common complication following noncardiac surgery, with a 30-day mortality of 10–20%. Effective therapeutic interventions are of public health importance. -
Marburg haemorrhagic fever: A rare but fatal disease
Item type: Journal Article • Journal: South African Family Practice • Authors: GA Ogunbanjo --- Dept. of Family Medicine & PHC, -
Post-tonsillectomy haemorrhage following traditional uvulectomy in an adult patient
Item type: Journal Article • Journal: South African Family Practice • Authors: M Tshifularo --- Dept. of ENT, CA Joseph --- Dept. of ENT, GA Ogunbanjo --- Dept. of Family Medicine & PHC, -
Impact of HIV/AIDS on deaths certified at Mosvold Hospital, Ingwavuma, Northern KwaZulu-Natal from January to August 2003
Item type: Journal Article • Journal: South African Family Practice • Authors: CH Vaughan Williams --- Mosvold Hospital,An analysis of the causes of death certified at Mosvold Hospital, Ingwavuma demonstrates the impact of HIV/AIDS in the region. HIV/AIDS appears to be responsible for about 45% of registered deaths in both males and females after the age of... -
Moederlike mortaliteitskoers in Potchefstroom Hospitaal, 2000–2002: hoe kan hierdie risiko's vir moeders verlaag word?
Item type: Journal Article • Journal: South African Family Practice • Authors: WM Kruger --- Departement Obstetrie en Ginekologie, GB Theron --- Departement Obstetrie en Ginekologie, TF Kruger --- Departement Obstetrie en Ginekologie, -
Outcome of pregnancy in the morbidly obese woman
Item type: Journal Article • Journal: South African Family Practice • Authors: E Ngoga --- Department of Obstetrics asnd Gynaecology, D Hall --- Department of Obstetrics asnd Gynaecology, F Mattheyse --- Department of Anaesthesiology and Critical Care, D Grové --- Department of Obstetrics asnd Gynaecology,Background: Obesity is a growing global health problem. In South Africa, more than half of the adult women are overweight and almost 30% are obese. The problems associated with obesity, such as diabetes, hypertension, thrombo-embolism and coronary heart disease, are... -
Doctors and strike action: Can this be morally justifiable?
Item type: Journal Article • Journal: South African Family Practice • Authors: GA Ogunbanjo --- Department of Family Medicine and PHC, Faculty of Health Sciences, D Knapp van Bogaert --- Steve Biko Centre for Bioethics, Faculty of Health Sciences,Strikes are rare events in the history of medicine. Mainly their occurrences have been initiated by junior doctors as is the case in South Africa. In the most recent strike action by South African doctors, the root cause appears to... -
Sudden loss of vision
Item type: Journal Article • Journal: South African Family Practice • Authors: N Du Toit --- University of Cape Town; Groote Schuur Hospital,Sudden loss of vision, which causes consternation for both the patient and clinician, is a clinical problem that is encountered fairly regularly in most primary healthcare settings. Sudden visual loss or obscuration which is transient may simply be a symptom... -
Nurses' monitoring of the Road to Health Chart at primary healthcare level in Makhado, Limpopo province
Item type: Journal Article • Journal: South African Family Practice • Authors: G Kitenge --- Louis Trichardt Memorial Hospital, I Govender --- Department of Family Medicine,Background: The Road to Health Chart (RTHC) is a record chart carried by the caregiver that combines essential information on the growth monitoring of a child, immunisation, vitamin A supplementation, deworming medicine and other illnesses. It provides useful information to... -
The prevalence of erectile dysfunction at a primary healthcare clinic in Durban, KwaZulu-Natal
Item type: Journal Article • Journal: South African Family Practice • Authors: Y Lockhat --- King Dinuzulu Hospital, A Ross --- Department of Family Medicine, P Ramlachan --- University of Sydney, Australia C Rangiah --- Department of Family Medicine,Objectives: The objectives of this study were to determine the prevalence of erectile dysfunction (ED) in men attending a primary healthcare (PHC) clinic in Durban, KwaZulu-Natal, and to document any relationship between ED and age, smoking, economic status and co-morbid... -
The profile of maternal deaths in a district hospital: a five-year review of maternal deaths from 2006–2010
Item type: Journal Article • Journal: South African Family Practice • Authors: PN Makinga --- Northdale Hospital, J Moodley --- Women's Heath and HIV Research Group, MJ Titus --- Pietermaritzburg Hospitals Complex,Objectives: The objectives were to determine the clinical and demographic profile of maternal deaths, determine the most common primary causes of maternal deaths at district hospital level, compare the causes of deaths at district hospital, provincial and national level, and... -
A snapshot of noncommunicable disease profiles and their prescription costs at ten primary healthcare facilities in the in the western half of the Cape Town Metropole
Item type: Journal Article • Journal: South African Family Practice • Authors: AA Isaacs --- Metro District Health Services, Western Cape, N Manga --- Division of Family Medicine, Faculty of Health Sciences, C Le Grange --- Division of Family Medicine, Faculty of Health Sciences, DA Hellenberg --- Division of Family Medicine, Faculty of Health Sciences, V Titus --- Metro District Health Services, Western Cape, R Sayed --- Division of Family Medicine, Faculty of Health Sciences,Objectives: There has been a rapid increase in the prevalence of noncommunicable diseases globally. It is thought that this increase will have the greatest impact on developing countries, such as South Africa, where it will adversely affect quality of life... -
Incidental finding of hypertension and diminished femoral pulses: short-segment stenosis of the aorta just distal to the origin of the left subclavian artery
Item type: Journal Article • Journal: South African Family Practice • Authors: S Ellemdin --- Department of Internal Medicine, Faculty of Health Sciences, P Soma --- Department of Physiology, Faculty of Health Sciences, MIE Hassen --- Department of Internal Medicine, Faculty of Health Sciences, -
Hospital reform and staff morale in South Africa: a case study of Dr Yusuf Dadoo Hospital
Item type: Journal Article • Journal: South African Family Practice • Authors: OJ Ibeziako --- Department of Family Medicine, ON Chabikuli --- Department of Family Medicine, S Olorunju --- Biostatistics Unit, Medical Research Council of South Africa,Objectives: This study explored major factors that influenced staff motivation at a district hospital in South Africa following hospital reforms and comparison of these factors across the two main staff categories. -
Pinus patula and pine hybrid hedge productivity in South Africa: a comparison between two vegetative propagation systems exposed to natural infection by Fusarium circinatum
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Craig M Ford --- Sappi Forests, Shaw Research Centre, South Africa Nicoletta B Jones --- Sappi Forests, Shaw Research Centre, South Africa Paxie WC Chirwa --- Department of Plant Production and Soil Science, South AfricaIn response to the Fusarium circinatum pine pathogen threat in southern Africa, research has been conducted on the development of F. circinatum-tolerant P. patula and P. patula hybrids. The objective of this study was to investigate the propagation potential of... -
Re-use of seedling containers and Fusarium circinatum association with asymptomatic Pinus patula planting stock
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Andrew R Morris --- Institute for Commercial Forestry Research, South Africa Gerda Fourie --- Department of Microbiology and Plant Pathology, South Africa Izette Greyling --- Department of Microbiology and Plant Pathology, South Africa Emma T Steenkamp --- Department of Microbiology and Plant Pathology, South Africa Nicoletta B Jones --- Sappi Forests, Shaw Research Centre, South AfricaFusarium circinatum is a pathogen causing serious post-planting mortality of Pinus patula seedlings in southern Africa. Containerised planting stock that is asymptomatic but associated with F. circinatum in the nursery is thought to be the cause of this problem. The... -
Public holidays as lieux de mémoire: nation-building and the politics of public memory in South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Sabine Marschall --- Cultural and Heritage Tourism Programme, South AfricaThis article engages with public holidays in post-apartheid South Africa as lieux de mémoire, ‘sites of memory’ that preserve particular interpretations of historical events and selected heroes for inscription into the collective memory of the nation. It first traces the... -
From ‘One Namibia, one Nation’ towards ‘Unity in Diversity’? Shifting representations of culture and nationhood in Namibian Independence Day celebrations, 1990–2010
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael Uusiku Akuupa --- Dept. of Anthropology and Sociology, South Africa Godwin Kornes --- Dept. of Anthropology and African Studies, GermanyIn 2010 Namibia celebrated its twentieth anniversary of independence from South African rule. The main celebrations in the country's capital Windhoek became the stage for an impressively orchestrated demonstration of maturing nationhood, symbolically embracing postcolonial policy concepts such as ‘national... -
National days between commemoration and celebration: remembering 1947 and 1960 in Madagascar
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Mareike Späth --- Johannes Gutenberg University Mainz, Germany Helihanta Rajaonarison --- Université d'Antananarivo, MadagascarToday Madagascar officially celebrates two national holidays. 29 March is dedicated to the memory of anticolonial resistance in 1947, the commemoration of the dead and the decoration of surviving combatants. 26 June in contrast is celebrated as Madagascar's return to... -
Beyond ethical imperatives in South African anthropology: morally repugnant and unlikeable subjects
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ilana van Wyk --- Institute for Humanities in Africa (HUMA), Upper Campus, Humanities Graduate Building, 4 Floor, University of Cape Town, South AfricaIn this article, I argue that anthropologists' dislike of their subjects in the field poses both epistemological and ethical questions that go beyond concerns about harming or exploiting those we study, about maintaining human relationships, or about the self-reflexivity and... -
Exit/Exist: Gregory Maqoma's dance and the call to life
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Patricia C. Henderson --- Department of Social Anthropology, South AfricaThe paper explores life-giving qualities of creativity and self-stylisation in the performance art and dance of contemporary South African choreographer Gregory Maqoma. Placing his performance Exit/Exist in conversation with social theories of becoming, desire and futurity explored in the work... -
Modelling dominant height and site index in different edaphoclimatic zones of Nothofagus dombeyi secondary forest in the Andes of south-central Chile
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos Esse --- Universidad Católica de Temuco, Escuela de Ciencias Forestales, Chile Pablo J Donoso --- Universidad Austral de Chile, Instituto de Bosques y Sociedad, Chile Víctor Gerding --- Universidad Austral de Chile, Instituto de Bosques y Sociedad, Chile Celso Navarro --- Universidad Católica de Temuco, Escuela de Ciencias Forestales, Chile Francisco Encina-Montoya --- Universidad Católica de Temuco, Escuela de Ciencias Ambientales, ChileNothofagus dombeyi grows in a wide variety of sites. The information about its productivity is still scarce, which makes it difficult for foresters and landowners to take decisions about the best practices to maintain and/or improve the goods and services... -
Effects of plantation residue management on the community structure of wattle regeneration invertebrate pests in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Prem Govender --- Research Directorate, Faculty of Health Sciences, South AfricaThere is a limited availability of land for the expansion of South African black wattle plantations. One way to increase productivity is to ensure the survival of seedlings during regeneration, thereby increasing the stocking of compartments. Soil invertebrate pests constitute... -
Interactions between stream channel incision, soil water levels and soil morphology in a wetland in the Hogsback area, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Mohammed Y Omar --- Department of Agronomy, South Africa Pieter AL Le Roux --- Department of Soil, Crop and Climate Sciences, South Africa Johan J van Tol --- Department of Agronomy, South AfricaWetland degradation in the form of channel incisioning can significantly alter the hydrological functioning of a wetland. In this study in a small headwater wetland in the Hogsback area, Eastern Cape province, the impact of channel incisioning on soil water... -
Potassium maldistribution revisited
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Justine Pietersen --- Department of Anaesthesiology and Critical Care, South Africa Andrew Levin --- Department of Anaesthesiology and Critical Care, South AfricaObjective: This study investigated the maldistribution of concentrated 15% potassium chloride after injection into one-litre, flexible, Ringer’s lactate bags. -
Generational inversions: ‘working’ for social reproduction amid HIV in Swaziland
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Casey Golomski --- Department of Anthropology, South AfricaHow do people envision social reproduction when regular modes of generational succession and continuity are disrupted in the context of HIV/AIDS? How and where can scholars identify local ideas for restoring intergenerational practices of obligation and dependency that produce mutuality... -
An “Indian commons” in Durban? limits to mutuality, or the city to come
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Sharad Chari --- Centre for Indian Studies in Africa and Department of Anthropology, South AfricaThis paper explores the ways in which memories of Black South Africans in Durban, identified by racial discourse and often by themselves as Indian and Coloured, reach back to early twentieth century processes of dispossession and occupation. Through historical and... -
Trauma aesthetics in war documentaries about the Lord's Resistance Army in Uganda
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Okaka Opio Dokotum --- Literature Department, UgandaMemory studies scholar Cathy Caruth postulates that “history is precisely the way we are implicated in one another's trauma” (24). Given the violent and traumatic history of post-independence Uganda, especially the bloody, insane and protracted Lord's Resistance Army (LRA) insurgency... -
Sexuality, Power and Transgression: Homophobia in Abdulrazak Gurnah's Memory of Departure
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Kimani Kaigai --- Literature Department, KenyaThis paper offers a reading of Zanzibari-born, UK-based writer, Abdulrazak Gurnah’ debut novel, Memory of Departure in order to explore how the novel positions sexual activities that are seen as transgressive and how contestations over these bodily activities imply issues... -
Culture environment and hatchery of origin influence growth, condition and feeding organ morphology in the Pacific oyster Crassostrea gigas in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Nel --- Department of Botany and Zoology, South Africa G Pitcher --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries, South Africa NB Richoux --- Department of Zoology and Entomology, South Africa S Jackson --- Department of Botany and Zoology, South AfricaSouth Africa lacks a commercial oyster hatchery. To inform the sourcing of seed for future hatchery establishments, we compared half-sib Pacific oyster Crassostrea gigas cohorts from hatcheries in Namibia and Chile. We measured oyster growth, mortality, condition and feeding organ... -
Morphological identification of the ryegrass hybrid Lolium multiflorum × Lolium perenne and isolation of the pathogen Fusarium pseudograminearum in the Western Cape
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Michael I Ferreira --- Plant Science, Western Cape Department of Agriculture, South Africa Carl F Reinhardt --- Department of Plant Production and Soil Science, South Africa Sandra C Lamprecht --- Agricultural Research Council–Plant Protection Research Institute, South Africa Marna Sinclair --- Veterinary Services, Western Cape Department of Agriculture, South Africa Liezl MacKenzie --- Directorate Research Support Services, Western Cape Department of Agriculture, South Africa Gert van Coller --- Plant Science, Western Cape Department of Agriculture, South AfricaWeed resistance to herbicides present one of the greatest current economic challenges to agriculture. Herbicide resistant ryegrass (Lolium spp.) is a serious problem in Western Cape grain-producing areas. Morphological and pathogenic analyses were performed on ryegrass samples. Morphologically, 50% of... -
Towards a classification of Tanzanian rivers: a bioassessment and ecological management tool. A case study of the Pangani, Rufiji and Wami–Ruvu river basins
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LT Kaaya --- Department of Aquatic Sciences and Fisheries, TanzaniaRiver classification is important for reporting ecological status and for the general ecological management of river systems by partitioning natural variability. A priori river classification by abiotic variables and validation of classifications obtained using aquatic macroinvertebrates from reference sites for... -
Biochemical, haematological and morphological variations in juvenile Clarias gariepinus exposed to Carbendazim® fungicide
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CD Nwani --- Department of Zoology and Environmental Biology, Nigeria MC Omah --- Department of Applied Biology and Biotechnology, Nigeria N Ivoke --- Department of Zoology and Environmental Biology, Nigeria HO Nwamba --- Department of Applied Biology and Biotechnology, Nigeria C Ani --- Department of Applied Biology, Nigeria SU Ogbonna --- Department of Applied Biology, NigeriaThe biochemical, haematological and morphological variations in juvenile Clarias gariepinus exposed to Carbendazim® (methyl-2-benzimidazole carbamate; CBZ), a fungicide effective for the control of fungal pathogens in plants, were determined. The 96 h LC50 value of CBZ determined by probit analysis... -
Branchiuran parasites (Crustacea: Branchiura) from fishes in the Okavango (Botswana) and Zambezi (Namibia) systems
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LL Van As --- Department of Zoology and Entomology, South Africa JG Van As --- Department of Zoology and Entomology, South AfricaFish parasitological surveys, conducted during different times of the year in the Okavango and Upper Zambezi River systems from 1997 to 2013, revealed the presence of five branchiuran species. Dolops ranarum from the Okavango system was found on the skin... -
Wildlife roadkill patterns on a major highway in northern Tanzania
Item type: Journal Article • Journal: African Zoology • Authors: John Kioko --- School for Field Studies, Tanzania Christian Kiffner --- School for Field Studies, Tanzania Nicole Jenkins --- Department of Environmental Studies, Davidson College, USA Wendy J Collinson --- Endangered Wildlife Trust, South AfricaDespite expanding road networks, there is limited understanding of the effects of roads on wildlife in East Africa. We present a baseline survey and describe the patterns of roadkill in the Tarangire–Manyara ecosystem of Tanzania. A 75 km stretch of... -
Population dynamics and biology of an invasive population of mosquitofish Gambusia affinis in a temperate estuarine lake system
Item type: Journal Article • Journal: African Zoology • Authors: Hans Sloterdijk --- Leibniz Center for Tropical Marine Ecology, Germany Nicola C James --- South African Institute for Aquatic Biodiversity, South Africa M Kyle S Smith --- South African National Parks, Rondevlei Scientific Services, South Africa Werner Ekau --- Leibniz Center for Tropical Marine Ecology, Germany Olaf LF Weyl --- South African Institute for Aquatic Biodiversity, South AfricaThis study investigates the distribution, relative abundance, population growth and biology of the alien invasive fish Gambusia affinis in the Wilderness Lakes System, a coastal lake system in the warm-temperate region of South Africa. Fish were collected throughout the system... -
The timing of moult in males and females of the monomorphic Pale-winged Starling Onychognathus nabouroup
Item type: Journal Article • Journal: African Zoology • Authors: Adrian JFK Craig --- Department of Zoology and Entomology, Rhodes University, South Africa Martine Hausberger --- UMR CNRS 6552 Ethologie animale et humaine, Université de Rennes-1, France Bo Bonnevie --- Information Technology Division, Rhodes University, South Africa Laurence Henry --- UMR CNRS 6552 Ethologie animale et humaine, Université de Rennes-1, FrancePale-winged Starlings Onychognathus nabouroup inhabit the arid western interior of southern Africa and moult– breeding overlap may occur. We collected field data in two successive years on the moult of individual birds, whose sex was confirmed by genetic techniques. Small... -
A morphological description of the sagittal otoliths of two mormyrids, Marcusenius macrolepidotus and Petrocephalus catostoma (Family: Mormyridae)
Item type: Journal Article • Journal: African Zoology • Authors: N.N. Nicolaai --- Department of Zoology and Biology, South Africa A. Jooste --- Department of Zoology and Biology, South AfricaThe morphology of the sagittal otoliths of two South African mormyrid fish, Marcusenius macrolepidotus and Petrocephalus catostoma, were studied to determine possible morphological significance. The sagittae of M. macrolepidotus and P. catostoma are kidney-shaped and oblong, respectively. The ventral margin... -
Echidnophaga suricatta (Siphonaptera: Pulicidae), a new species of flea from the Northern Cape Province, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Michael W. Hastriter --- Monte L. Bean Life Science Museum, Brigham Young University, U.S.A.Echidnophaga suricatta (Pulicidae), a new species of flea collected from the meerkat (Suricata suricatta Schreber, 1776) near Garies (30°22’S, 17°31’E) and Brandvlei (30°27’S, 20°29’E), Northern Cape Province, South Africa, is described. Based on chaetotaxy of the tarsal segments, this new... -
A new and unusual species of Parachiton (Mollusca: Polyplacophora) from South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Boris I. Sirenko --- Zoological Institute of the Russian Academy of Sciences, Universitetskaya nab, RussiaA new species of the genus Parachiton, P. hodgsoni n.sp., which inhabits shallow water off the South African coast, is described. The radula is unusual for the genus Parachiton. It consists of about 160 transverse rows of very small mature... -
Studies on African zygaenoid moths (Lepidoptera: Zygaenoidea): descriptions of final instar larvae of Psycharium pellucens, P. montanum and Psycharium sp. A, with notes on the larva of P. barnardi and Somabrachys (Somabrachyidae)
Item type: Journal Article • Journal: African Zoology • Authors: H. Geertsema --- Department of Entomology and Nematology, South AfricaGeneralized descriptions of the larvae of Somabrachyidae, with brief notes on their biology and habits, are presented. Illustrations in colour as well as a key for the identification of final instar larvae of Psycharium pellucens, P. montanum and Psycharium sp... -
A new genus and species of Ceratocanthidae from Tanzania (Coleoptera: Scarabaeoidea)
Item type: Journal Article • Journal: African Zoology • Authors: Alberto Ballerio --- Viale Venezia 45, I-25123 Brescia, ItalyCryptophilharmostes mahunkai n.gen., n.sp., a remarkable Ceratocanthidae (Coleoptera: Scarabaeoidea) from the Usambara Mountains (Tanzania), is described. The morphology of the clypeus and mesoepisternum is discussed, also with reference to other Ceratocanthidae. The affinities of the genus are discussed, and within... -
Geographic variation in the morphology, echolocation and diet of the little free-tailed bat, Chaerephon pumilus (Molossidae)
Item type: Journal Article • Journal: African Zoology • Authors: F. Aspetsberger --- University of Bremen, FB 5 Geosciences, Germany Djuri Brandsen --- Department of Animal Ecology, Netherlands D. S. Jacobs --- Department of Zoology, South AfricaThe insectivorous bat Chaerephon pumilus has a wide distribution in Africa and displays considerable variation in the colour of its wings and venter.We investigated whether variation is also evident in its morphology, echolocation and diet by comparing a population of... -
A new species of land planarian (Platyhelminthes: Tricladida: Terricola: Rhynchodemidae) from South Africa, with a list of African terrestrial planarian species
Item type: Journal Article • Journal: African Zoology • Authors: H. D. Jones --- School of Biological Sciences, 3.239 Stopford Building, University of Manchester, U.K.Othelosoma joburgi is described from Roodepoort, Gauteng province, South Africa. Preserved worms are up to 16mmlong and 3mmwide, cylindrical, plump, and ‘sick green’ in colour with no obvious stripes or markings. There is a dorsal anterior retractor muscle which causes... -
Field identification of two morphologically similar bats, Miniopterus schreibersii natalensis and Miniopterus fraterculus (Chiroptera: Vespertilionidae)
Item type: Journal Article • Journal: African Zoology • Authors: Samantha Stoffberg --- Department of Zoology, South Africa David S. Jacobs --- Department of Zoology, South Africa Cassandra M. Miller-Butterworth --- Department of Zoology, South AfricaMiniopterus schreibersii natalensis and Miniopterus fraterculus are two morphologically similar, but genetically distinct, species of insectivorous bat that, more often than not, share roosts. Identifying these two species in the field is difficult because of an overlap in the ranges... -
Phylogenetic relationships in the genus Aethomys (Rodentia: Muridae)
Item type: Journal Article • Journal: African Zoology • Authors: C.T. Chimimba --- Mammal Research Institute, Department of Zoology and Entomology, South AfricaPhylogenetic relationships in the genus Aethomys were examined based on qualitative cranial data for all currently recognized species. A cladistic analysis suggested the presence of three clades: 1) A. bocagei, A. thomasi, A. silindensis, A. kaiseri, and A. nyikae;2) A... -
Ultrastructure of epididymal spermatozoa in three social African mole-rats of the genus Cryptomys (Rodentia: Bathyergidae): conservatism in sperm morphology
Item type: Journal Article • Journal: African Zoology • Authors: K.A. Maswanganye --- Mammal Research Institute, Department of Zoology and Entomology, South Africa G.P. Malherbe --- Mammal Research Institute, Department of Zoology and Entomology, South Africa N.C. Bennett --- Mammal Research Institute, Department of Zoology and Entomology, South AfricaThe morphology, size and three-dimensional structure of spermatozoa from three representatives of the genus Cryptomys were investigated. To date, there has been no study to either elucidate the morphological features or relative dimensions of spermatozoa in the genus Cryptomys specifically,... -
An ultrastructural investigation of Argulus personatus Cunnington, 1913 (Crustacea: Branchiura) from Lake Tanganyika, northern Zambia
Item type: Journal Article • Journal: African Zoology • Authors: Quinton Tam --- Department of Zoology, South Africa Annemarié Avenant-Oldewage --- Department of Zoology, South Africa Ernest H. Williams --- Department of Marine Sciences,Sixteen male and one female specimen of Argulus personatus Cunnington, 1913, were collected from Bathybates ferox Boulenger, 1898, from Lake Tanganyika in northern Zambia. Light and scanning electron microscopy (SEM) examinations documented a thickening of cuticle located on the dorsal... -
Spring diet and trophic partitioning in an alpine lizard community from Morocco
Item type: Journal Article • Journal: African Zoology • Authors: Miguel A. Carretero --- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO/UP), Campus Agrário de Vairão, Portugal Anna Perera --- Departamento de Biologia Animal, Spain D. James Harris --- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO/UP), Campus Agrário de Vairão, Portugal Vasco Batista --- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO/UP), Campus Agrário de Vairão, Portugal Catarina Pinho --- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO/UP), Campus Agrário de Vairão, PortugalOukaïmeden Plateau is a herpetologically rich locality in the High Atlas (Morocco) where four lizard species coexist in strict sympatry: three lacertids (Lacerta perspicillata chabanaudi, L. andreanszkyi and Podarcis vaucheri – formerly P. hispanica vaucheri) and one gekkonid (Quedenfeldtia trachyblepharus)... -
Advertisement call and tadpole morphology of the clutch-guarding frog Mantidactylus argenteus from eastern Madagascar
Item type: Journal Article • Journal: African Zoology • Authors: Silvia Vejarano --- Institute for Biodiversity and Ecosystem Dynamics, Zoological Museum, University of Amsterdam, the Netherlands Meike Thomas --- Department of Genetics, Evolutionary Genetics, Germany Frank Glaw --- Zoologische Staatssammlung, Germany Miguel Vences --- Institute for Biodiversity and Ecosystem Dynamics, Zoological Museum, University of Amsterdam, the NetherlandsWe provide the first descriptions of the tadpole and advertisement call of Mantidactylus argenteus. Calls consist of 6–15 short and rather melodious notes, with a dominant frequency at 4100–4400 Hz and are emitted from arboreal positions during the day. The... -
Tick infestations in the Namaqualand speckled padloper, Homopus signatus signatus (Gmelin, 1789)
Item type: Journal Article • Journal: African Zoology • Authors: Victor J. T. Loehr --- Department of Biodiversity and Conservation Biology, South Africa Brian T. Henen --- Department of Biodiversity and Conservation Biology, South Africa Margaretha D. Hofmeyr --- Department of Biodiversity and Conservation Biology, South AfricaMany terrestrial chelonians are parasitized by ticks, but we have a poor understanding of what determines tick infestations on chelonian hosts. We counted ticks on Homopus signatus signatus during each spring in the years 2001–2004, and evaluated tick frequencies in... -
Morphological studies on Bulinus sp. (Gastropoda: Planorbidae) from Nchout Monoun, Cameroon
Item type: Journal Article • Journal: African Zoology • Authors: R. Mimpfoundi --- General Biology Laboratory, Faculty of Science, Cameroon A. Ndassa --- General Biology Laboratory, Faculty of Science, CameroonSince 1990, diploid Bulinus sp. populations have been reported from many sites in the volcanic western Bamileke and Bamoun plateau in Cameroon; starch gel electrophoresis of enzymes and chromosome analyses have revealed a single band in hydroxybutyrate dehydrogenase (HBDH), isocitrate... -
Food habits and trophic resource partitioning among three mormyrid fishes from man-made Lake Ayame, Ivory Coast
Item type: Journal Article • Journal: African Zoology • Authors: E. P. Kouamélan --- Université de Cocody-Abidjan, UFR Bio-sciences, Laboratoire d’Hydrobiologie, Ivory Coast T. Koné --- Université de Cocody-Abidjan, UFR Bio-sciences, Laboratoire d’Hydrobiologie, Ivory Coast V. N’Douba --- Université de Cocody-Abidjan, UFR Bio-sciences, Laboratoire d’Hydrobiologie, Ivory Coast F. Ollevier --- Katholieke Universiteit Leuven (K.U.L), Zoological Institute, Laboratory of Ecology and Aquaculture,, BelgiumFeeding habits and trophic relationships among three mormyrid species (Petrocephalus bovei, Marcusenius ussheri and Marcusenius furcidens) were assessed in the man-made Lake Ayame in Ivory Coast. The index of preponderance combining the occurrence and weight percentages of the identified prey... -
Ecology of Wahlberg’s velvet gecko, Homopholis wahlbergii, in southern Africa
Item type: Journal Article • Journal: African Zoology • Authors: Martin J. Whiting --- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa Leeann T. Reaney --- School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, South Africa J. Scott Keogh --- School of Botany and Zoology, The Australian National University, AustraliaWe examined 170 museum specimens of the southern African gekkonid lizard Homopholis wahlbergii, to quantify sexual dimorphism, male and female reproductive cycles and diet. The largest male and female we recorded were 116 and 119 mm snout–vent length (SVL) respectively... -
The incidence of torpor in winter and summer in the Angolan free-tailed bat, Mops condylurus (Microchiroptera: Molossidae), in a subtropical environment, Mpumulanga, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: L. Vivier --- Zoology Department, South Africa M. van der Merwe --- Department of Zoology and Entomology, South AfricaThe incidence of torpor during summer and winter in response to cold exposure in Mops condylurus was studied in a subtropical environment. Body temperature changes under natural roosting conditions during winter and summer were monitored using bats fitted with temperature-sensitive... -
Quantification of shell banding polymorphism in the East African tree snail Sitala jenynsi (Pulmonata: Ariophantidae)
Item type: Journal Article • Journal: African Zoology • Authors: Peter F. Kasigwa --- Department of Zoology, Tanzania John A. Allen --- School of Biological Sciences, University of Southampton, U.K.In eastern Africa, populations of the tree snail Sitala jenynsi are monomorphic, dimorphic or trimorphic for the width of the upper brown band on their shells.We measured the variation in the width of this band in several populations and analysed... -
Morphological characteristics of Cape sugarbirds (Promerops cafer) from Helderberg Nature Reserve
Item type: Journal Article • Journal: African Zoology • Authors: K. M. C. Tjørve --- Zoology Department, South Africa G. Scholtz --- , South AfricaCape sugarbirds (Promerops cafer) are the largest nectarivores in the Western Cape and feed almost exclusively on protea nectar and associated arthropods. Helderberg Nature Reserve, Western Cape, South Africa, has a large diversity of Protea and supports breeding sugarbirds. As... -
Sympatric Biomphalaria species (Gastropoda: Planorbidae) in Lake Albert, Uganda, show homoplasies in shell morphology
Item type: Journal Article • Journal: African Zoology • Authors: Maria Plam --- Mandahl-Barth Research Centre for Biodiversity in Developing Countries, DBL – Centre for Health Research and Development, Institute for Veterinary Pathology, Faculty of Life Sciences, University of Copenhagen, Copenhagen Aslak Jørgensen --- Mandahl-Barth Research Centre for Biodiversity in Developing Countries, DBL – Centre for Health Research and Development, Institute for Veterinary Pathology, Faculty of Life Sciences, University of Copenhagen, Copenhagen Thomas K. Kristensen --- Mandahl-Barth Research Centre for Biodiversity in Developing Countries, DBL – Centre for Health Research and Development, Institute for Veterinary Pathology, Faculty of Life Sciences, University of Copenhagen, Copenhagen Henry Madsen --- Mandahl-Barth Research Centre for Biodiversity in Developing Countries, DBL – Centre for Health Research and Development, Institute for Veterinary Pathology, Faculty of Life Sciences, University of Copenhagen, CopenhagenThe three known sympatric Biomphalaria species that occur in Lake Albert; B. choanomphala, B. stanleyi and B. sudanica, were studied using both molecular (COI, 16S and ITS) and shell morphometric data. An unidentified sample of 18 Biomphalaria specimens from Lake... -
Ecological conditions for spread of the invasive snail Physa marmorata (Pulmonata: Physidae) in the Ivory Coast
Item type: Journal Article • Journal: African Zoology • Authors: Y. K. Bony --- Université de Perpignan, France N. C. Kouassi --- Station de Recherche en Pisciculture, CNRA, Ivory Coast D. Diomandé --- Université d’Abobo-Adjamé, Ivory Coast G. Gourene --- Université d’Abobo-Adjamé, Ivory Coast M. Verdoit-Jarraya --- Université de Perpignan, France J. P. Pointier --- Université de Perpignan, FrancePhysa marmorata, originally described from the Lesser Antilles, was introduced into Africa before 1900 and has previously been reported from Bénin, Togo, Ghana, Nigeria and South Africa. Here we show that it is also common in temporary ponds, fish ponds,... -
Description of a new gnathiid, Afrignathia multicavea gen. et sp. n. (Crustacea: Isopoda: Gnathiidae), from South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Kerry A. Hadfield --- Department of Zoology, South Africa Nico J. Smit --- Department of Zoology, South AfricaA new genus and species of gnathiid isopod, Afrignathia multicavea gen. et sp. n., is described from material collected during the 1960s and 1970s in False Bay, offshore between Still Bay and Mossel Bay, and off Cape Point. This gnathiid... -
Cryptic lineages of little free-tailed bats, Chaerephon pumilus (Chiroptera: Molossidae) from southern Africa and the western Indian Ocean islands
Item type: Journal Article • Journal: African Zoology • Authors: Peter John Taylor --- Durban Natural Science Museum, South Africa Jennifer Lamb --- University of KwaZulu-Natal, South Africa Devendran Reddy --- University of KwaZulu-Natal, South Africa Theshnie Naidoo --- University of KwaZulu-Natal, South Africa Fanja Ratrimomanarivo --- Vahatra, Madagascar Steven M. Goodman --- Vahatra, MadagascarWe investigate mitochondrial DNA and craniometric variation in southern African and Malagasy populations of the small and morphologically variable, house-roosting molossid bat, Chaerephon pumilus in relation to Malagasy populations of the related, smaller-sized species, C. leucogaster. Both cytochrome b and... -
Morphometric variation in the Tunisian green frog, Rana saharica Anura: Ranidae)
Item type: Journal Article • Journal: African Zoology • Authors: Nabil Amor --- Research Unit: Genetics, Biodiversity and Bio-Resources Development, Biotechnology Institute of Monastir, Tunisia Sarra Farjallah --- Research Unit: Genetics, Biodiversity and Bio-Resources Development, Biotechnology Institute of Monastir, Tunisia Khaled Said --- Research Unit: Genetics, Biodiversity and Bio-Resources Development, Biotechnology Institute of Monastir, TunisiaRana saharica is the most widely distributed anuran in Tunisia. We examined morphological variation in 124 specimens as a function of their geographical origin, using univariate and multivariate statistics with traditional morphometrics. Our results supported the existence of three morphotypes... -
Mammal and bird road mortalities on the Upington to Twee Rivieren main road in the southern Kalahari, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: K. L. Bullock --- Department of Nature Conservation, South Africa G. Malan --- Department of Nature Conservation, South Africa M. D. Pretorius --- Department of Nature Conservation, South AfricaRoad ecology is becoming an increasingly important aspect of conservation biology. Carcasses lying on the road often confront visitors travelling to the Kgalagadi Transfrontier Park between Upington and the Twee Rivieren Rest Camp. This study investigated the species killed, the... -
Ontogenetic dietary shift and morphological correlates for Diplodus capensis (Teleostei: Sparidae) in southern Angola
Item type: Journal Article • Journal: African Zoology • Authors: Timothy J. Richardson --- Department of Ichthyology and Fisheries Science, South Africa Warren M. Potts --- Department of Ichthyology and Fisheries Science, South Africa Carmen V. Santos --- Faculdade Ciências da Universidade Agostinho Neto (FCUAN), Angola Warwick H.H. Sauer --- Department of Ichthyology and Fisheries Science, South AfricaAllometric growth patterns of functional morphological variables that reflect resource use in fish were correlated with the diet of Diplodus capensis in southern Angola. A total of 114 individuals (76–336 mm FL) were collected for stomach content analysis and a... -
Resolving the confusion: Amietia vertebralis and A. umbraculata tadpole morphology
Item type: Journal Article • Journal: African Zoology • Authors: Donnavan J.D. Kruger --- School of Environmental Sciences and Development, North-West University, Potchefstroom Campus, South Africa Ché Weldon --- School of Environmental Sciences and Development, North-West University, Potchefstroom Campus, South Africa Louis H. Du Preez --- School of Environmental Sciences and Development, North-West University, Potchefstroom Campus, South AfricaMorphological similarities between the tadpoles of Amietia umbraculata and A. vertebralis have led to confusion and incorrect descriptions and identifications in the literature. Based on 33 body measurements and ratios we revised the morphological descriptions of the tadpoles of the... -
Yellow-bellied or white-bellied? Identity of Arabian house bats (Vespertilionidae: Scotophilus) revealed from mitochondrial DNA and morphology
Item type: Journal Article • Journal: African Zoology • Authors: Peter Vallo --- Institute of Vertebrate Biology, Academy of Sciences of the Czech Republic, Czech Republic Petr Benda --- Department of Zoology, Czech Republic Antonín Reiter --- South Moravian Museum in Znojmo, Czech RepublicThe yellow-bellied Scotophilus dinganii is the only African house bat species reported to occur in the Arabian Peninsula. Formerly, the Arabian house bats were referred to similar-looking white-bellied S. leucogaster, which differs from S. dinganii mainly by the colour of... -
Life history strategy and population characteristics of an unexploited riverine cyprinid, Labeo capensis, in the largest impoundment in the Orange River Basin
Item type: Journal Article • Journal: African Zoology • Authors: Henning Winker --- Department of Ichthyology and Fisheries Science, South Africa Olaf L.F. Weyl --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa Anthony J. Booth --- Department of Ichthyology and Fisheries Science, South Africa Bruce R. Ellender --- Department of Ichthyology and Fisheries Science, South AfricaThe life history of an endemic riverine African cyprinid, Labeo capensis, that dominates the larger ichthyofauna in a large impoundment in the Orange River Basin four decades after damming, was investigated. Both sexes grew at a similar rate until the... -
Activity of the greater padloper, Homopus femoralis (Testudinidae), in relation to rainfall
Item type: Journal Article • Journal: African Zoology • Authors: Victor J.T. Loehr --- Homopus Research Foundation, NetherlandsThe greater padloper, Homopus femoralis, is largely endemic to South Africa. Its ecology remains unstudied, yet the efficient planning of field research is complicated by lack of data on its activity patterns. I studied a population in spring, summer and... -
New status for two African giant forest shrews, Crocidura goliath goliath and C. goliath nimbasilvanus (Mammalia: Soricomorpha), based on molecular and geometic morphometric analyses
Item type: Journal Article • Journal: African Zoology • Authors: F. Jacquet --- Département de Systématique et Evolution, Muséum National d’Histoire Naturelle, France R. Hutterer --- Section of Mammals, Zoologisches Forschungmuseum A. Koenig, Germany V. Nicolas --- Département de Systématique et Evolution, Muséum National d’Histoire Naturelle, France J. Decher --- Department of Biology, U.S.A. M. Colyn --- Université de Rennes 1, CNRS, France A. Couloux --- Génoscope, Centre National de Séquenç age, France C. Denys --- Département de Systématique et Evolution, Muséum National d’Histoire Naturelle, FranceCrocidura goliath nimbasilvanus Hutterer, 2003 (replacement name for C. odorata guineensis Heim de Balsac, 1968) from West Africa (Guinea, Liberia, Ivory Coast) and Crocidura goliath goliath Thomas, 1906 from Central Africa (Cameroon, Central African Republic, Gabon, Republic of Congo, Democratic... -
Environmental conditions during mass mortalities of the ascidian Pyura stolonifera (Heller) in the Tsitsikamma Marine Protected area
Item type: Journal Article • Journal: African Zoology • Authors: Nicholas Hanekom --- South African National Parks, South AfricaMass mortalities of the ascidian Pyura stolonifera occurred along the Tsitsikamma coast in May 1991 and again in February 2012, following infection of large proportions of the population with a white microbial growth. P. stolonifera appeared to be the only... -
Phylogeography of Buthus Leach, 1815 (Scorpiones: Buthidae): a multigene molecular approach reveals a further complex evolutionary history in the Maghreb
Item type: Journal Article • Journal: African Zoology • Authors: Diana Pedroso --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, Portugal Pedro Sousa --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, Portugal D. James Harris --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, Portugal Arie Van der Meijden --- CIBIO, Centro de Investigaçço em Biodiversidade e Recursos Genèticos, Campus Agrário de Vairço, Rua Padre Armando Quintas, PortugalThe distribution of the scorpion genus Buthus Leach, 1815 includes southwestern Europe, North and Central Africa and extends east towards the Arabian Peninsula. Phylogenetic relationships within the genus are complex and remain partially unresolved despite several previous assessments. A set... -
Life-history characteristics of an age-validated established invasive African sharptooth catfish, Clarias gariepinus, population in a warm–temperate African impoundment
Item type: Journal Article • Journal: African Zoology • Authors: Reece Wartenberg --- Department of Ichthyology and Fisheries Science, South Africa Olaf L. F. Weyl --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa Anthony J. Booth --- Department of Ichthyology and Fisheries Science, South Africa Henning Winker --- University of Cape Town, South AfricaIt has been suggested that the invasive, omnivorous Clarias garipienus is capable of rapid invasions and long-term persistence in recently inhabited freshwater systems. To test this hypothesis, the life history of the established, extralimital Darlington Dam (33°10’31”S, 25°09’13”E) population was... -
Causes of admissions to a raptor rehabilitation centre in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Lindy J. Thompson --- University of KwaZulu-Natal, South Africa Ben Hoffman --- Raptor Rescue, South Africa Mark Brown --- University of KwaZulu-Natal, South AfricaWith many species of southern African raptors becoming increasingly threatened, records from rehabilitation centres can give an indication of the threats faced by birds of prey in particular areas and to particular species. Thus, admissions records from a raptor rehabilitation... -
Sex differentiation based on the gular stripe in the apparently monomorphic Cape gannet
Item type: Journal Article • Journal: African Zoology • Authors: Gavin M. Rishworth --- Department of Zoology, South Africa Maëlle Connan --- Department of Zoology, South Africa David B. Green --- Department of Zoology, South Africa Pierre A. Pistorius --- Department of Zoology, South AfricaThe Cape gannet, Morus capensis, has long been considered a monomorphic species despite attempts at phenotypically separating the sexes. In a further effort we here recorded morphometric measurements from genetically sexed Cape gannets. Discriminant function analysis was used to classify... -
Genetic variation in a North African rodent pest, Meriones shawi: microsatellite polymorphism
Item type: Journal Article • Journal: African Zoology • Authors: Aude Lalis --- Département Systématique et Evolution, France Josie Lambourdière --- Service de Systématique Moléculaire, Muséum National d’Histoire Naturelle, FranceMeriones shawi is an ubiquitous and endemic rodent in northern African. This species is considered as an economically important pest because it often damages crops. Moreover, the gerbillines are known to function as reservoirs for a variety of serious human... -
Ecology of diplostomid (Trematoda: Digenea) infection in freshwater fish in southern Africa
Item type: Journal Article • Journal: African Zoology • Authors: Andri Grobbelaar --- Department Zoology and Entomology, South Africa Liesl L. Van As --- Department Zoology and Entomology, South Africa Hennie J.B. Butler --- Department Zoology and Entomology, South Africa Jo G. Van As --- Department Zoology and Entomology, South AfricaThe complex life cycles of most trematode parasites include three hosts. The first intermediate host is a snail, the second is normally a teleost fish and a piscivorous bird serves as the definitive host. Lymnaeid snails are most likely to... -
Sexing monomorphic western mountain greenbuls on Mount Cameroon using morphometric measurements
Item type: Journal Article • Journal: African Zoology • Authors: Eric Djomo Nana --- Department of Ecology, Czech Republic Pavel Munclinger --- Department of Zoology, Czech Republic Michal Ferenc --- Department of Ecology, Czech Republic Ondřej Sedlàček --- Department of Ecology, Czech Republic Tomàč Albrecht --- Department of Zoology, Czech Republic David Hořàk --- Department of Ecology, Czech RepublicThe western mountain greenbul, Andropadus tephrolaemus, is a poorly-known monomorphic forest greenbul. We investigated whether morphological measurements could be used to discriminate between sexes of this species, with a sample of birds captured in two forest types on Mt Cameroon... -
Can behaviour buffer the impacts of climate change on an arid-zone bird?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Susan J Cunningham --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Rowan O Martin --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South AfricaBehavioural thermoregulation, particularly the use of cool microclimates, is one method by which organisms could avoid the worst effects of climate warming. However, retreat into cool microsites, e.g. shady vegetation or burrows, may carry important lost-opportunity costs. These could include... -
Elevated temperatures drive fine-scale patterns of habitat use in a savanna bird community
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Rowan O Martin --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Susan J Cunningham --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- ,Many animals use thermally buffered microhabitats, e.g. patches of shade within trees, to avoid temperature extremes. These ‘thermal refugia’ may mediate the impact of climate change on animals. Predicting how species and communities will respond to rising temperatures therefore requires... -
Comparative and theoretical framework of Brazilian hospitality studies
Item type: Journal Article • Journal: • Authors: Elizabeth K. Wada --- School of Hospitality and Tourism, Anhembi Morumbi University, São Paolo, Brazil Airton José Cavenaghi --- School of Hospitality and Tourism, Anhembi Morumbi University, São Paolo, Brazil Maria do Rosário Rolfsen Salles --- School of Hospitality and Tourism, Anhembi Morumbi University, São Paolo, BrazilThe purpose of this article is to give a summary of the bibliographical production of the first publications made by the Master’s Programme in Hospitality at the Anhembi Morumbi University, São Paolo, the compilations edited by Célia Maria de Moraes... -
Effect of the subprime mortgage crisis on a leading emerging market
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Jun Sik Kim --- Division of International Trade, Korea Doojin Ryu --- College of Economics, KoreaThis study examines how the US subprime mortgage crisis affects the behaviour of the Korean stock and futures market and how the futures traders react to the shocks related to the crisis. Analysing a unique and high-quality daily data set... -
Profile and acute mortality outcome of patients admitted with cryptococcal meningitis to an urban district hospital in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: BO Adeyemi --- Department of Family Medicine, South Africa A Ross --- Department of Family Medicine, South AfricaBackground: Cryptococcal meningitis (CCM) is one of the leading causes of early mortality in human immunodeficiency virus (HIV)-infected patients. This study was part of a clinical audit aimed at improving care for patients with CCM at an urban district hospital... -
Sexual dimorphism based on body proportions and ontogenetic changes in the Brazilian electric ray Narcine brasiliensis (von Olfers, 1831) (Chondrichthyes: Narcinidae)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: FA Rolim --- Fisheries Institute of São Paulo, Brazil FP Caltabellotta --- Oceanography Department, Brazil MM Rotundo --- Zoological Collection of University of Santa Cecília – UNISANTA, Brazil T Vaske-Júnior --- Elasmobranch Laboratory, BrazilSexual dimorphism in the Brazilian electric ray Narcine brasiliensis from the south‑western Atlantic coast was evaluated based on body proportions and ontogenetic changes. All regions of the body were found to have differences in body proportions between the sexes, except... -
Redescription of Hydrolagus africanus (Gilchrist, 1922) (Chimaeriformes: Chimaeridae), with a review of southern African chimaeroids and a key to their identification
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KA Walovich --- Pacific Shark Research Center, USA DA Ebert --- Pacific Shark Research Center, USA DJ Long --- Department of Ichthyology, USA DA Didier --- Department of Biological Sciences, USAHydrolagus africanus (Gilchrist, 1922) is a little‑known chimaeroid species, originally described from the KwaZulu‑ Natal coast of South Africa, with a range spanning the western Indian Ocean from Kenya, south to Mozambique and South Africa, and extending into the south‑eastern... -
Causes of prematurity in the Bloemfontein Academic Complex
Item type: Journal Article • Journal: South African Family Practice • Authors: H Brits --- Faculty of Health Science, Department of Family Medicine, South Africa M Adriaanse --- School of Medicine, South Africa D-M Rall --- School of Medicine, South Africa M Van Biljon --- School of Medicine, South Africa A Van der Walt --- School of Medicine, South Africa E Wasserman --- School of Medicine, South Africa G Joubert --- Faculty of Health Sciences, Department of Biostatistics, South AfricaBackground: Prematurity is globally the leading cause of neonatal mortality, morbidity and long-term disability. The Millennium Development Goals (MDG) of the United Nations, and specifically MDG 4, address child mortality. Neonatal mortality rates contribute to 37% of all under-five mortality,... -
Hyperchloraemia: ready for the big time?
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Kim de Vasconcellos --- Intensive Care Unit, South AfricaChloride is in many ways the forgotten electrolyte. Recent evidence suggests that hyperchloraemia results in metabolic acidosis, and is associated with renal dysfunction, increased mortality, coagulation disturbances, splanchnic ischaemia, and a proinflammatory state. The renal effects and the increased mortality... -
Common mental disorders are not diagnosed commonly in community health centres
Item type: Journal Article • Journal: South African Family Practice • Authors: Tsepo Sechaba Motsohi --- Division of Family Medicine, South Africa AA Isaacs --- Faculty of Health Sciences, Division of Family Medicine, South Africa N Manga --- Faculty of Health Sciences, Division of Family Medicine, South Africa C Le Grange --- Faculty of Health Sciences, Division of Family Medicine, South Africa M Roelofse --- Faculty of Health Sciences, Division of Family Medicine, South Africa P Milligan --- Head Clinical Unit, Acute Services, South Africa DA Hellenberg --- Faculty of Health Sciences, Division of Family Medicine, South Africa AR Sayed --- Specialist Scientist and Biometrician, South AfricaBackground: Very limited published data exist on the spectrum of mental health disorders encountered at primary health care (PHC) facilities in South Africa. -
Pattern of inappropriate cases presenting to the Accident and Emergency Department in a Nigeria Tertiary Hospital
Item type: Journal Article • Journal: South African Family Practice • Authors: Opunabo Nelson Young-Harry --- Department of Family Medicine, Nigeria Paul Owajionyi Dienye --- Department of Family Medicine, Nigeria Kaine Olaide Diete-Spiff --- Department of Family Medicine, NigeriaBackground: Although the primary mission of the Accident and Emergency Department (AED) is to provide initial treatment for life-threatening conditions, some patients make inappropriate use of the service. This study is aimed to determine the level of inappropriate use and... -
Characteristics and management options of crusting soils in a smallholder farming area of the Zambezi metamorphic belt in northern Zimbabwe
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Alen Manyevere --- University of Limpopo, South Africa Courage Bangira --- Chinhoyi University of Technology, Zimbabwe Jephita Gotosa --- Bindura University of Science Education, Zimbabwe Lawrence Munjonji --- University of Limpopo, South Africa Emmanuel Chikwari --- Chemistry and Soil Research, ZimbabweCrusting and surface-sealing soils present productivity challenges to smallholder farmers despite their high inherent fertility. Crop production on crusting soils is costly due to unfavourable conditions such as surface capping and compaction, which hinder crop emergence. A study was conducted... -
What factors drive fishery yields in the Lower Shire River, Malawi?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D Tweddle --- South African Institute for Aquatic Biodiversity, South AfricaThe Shire River drains from Lake Malawi to the Lower Zambezi River. Annual flow is dependent mainly on lake level, partially controlled by the operation of a barrage at Liwonde to regulate flows for hydroelectricity generation in the escarpment reaches... -
The Buysdorp conundrum: constructing and articulating community and identity in Soutpansberg, Limpopo Province
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology,Coenraad de Buys, the great-grandson of Jean du Bois, a Huguenot immigrant from Calais, France, was by all accounts a formidable man. He left an indelible, often disruptive, mark on the historical, political and sociocultural landscape of South Africa. Coenraad... -
Spatial and organisational complexity in the Dwars River Valley, Western Cape
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: C. S. van der Waal --- Department of Sociology and Social Anthropology,Access to land and housing in South Africa is of great importance to a range of actors, leading to contested processes and complex organisational interactions. Using the anthropology of organisations and a process ethnographic approach, the spatial and organisational complexity... -
Imfobe: self-knowledge and the reach for ethics among former, young, anti-apartheid activists
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Pamela Reynolds --- Department of Anthropology, USAThe paper explores the reach for ethics among young people engaged in opposition to the apartheid state in the 1980s. Structured around the Xhosa concept imfobe, variously translated as morality, virtue, goodness, grace, the paper seeks to locate young peoples'... -
A voice in control?: narratives of accused witches in Chhattisgarh, India
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Helen M. Macdonald --- Dept. Social Anthropology, South AfricaOne characteristic of violence is the unmaking of language and fracturing of the victim's social world. In recent theorising, narrative is posited to play an important role in restoring the victim to his/her status as a social person. Fiona Ross... -
Ethics and the Everyday: Reconsidering approaches to research involving children and young people
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Rachel Bray --- Centre for Social Science Research, South Africa Imke Gooskens --- Centre for Social Science Research, South AfricaGuidelines on ethical practice in research with children tend to focus on ways to protect children from potential economic and emotional exploitation. While such concerns deserve attention we argue that they represent only a portion of the moral framework in... -
Primordialist paranoia, essentialism and South African realities: participating and observing across the ‘anthropological divide’
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael de Jongh --- Department of Anthropology and Archaeology,This article interrogates the exigency of some of the current concerns of South African anthropology. The contribution is autobiographical and occasionally anecdotal; personal narrative hence shapes the mode of text development. In considering the current state of the South African... -
New knowledge and the university
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Martin Hall --- Centre for Social Justice Research,What forms of knowledge have legitimacy in the contemporary university? By using Actor-Network Theory to unravel the strands in a recent dispute about access to skeletons from a burial ground in Cape Town, this paper shows how circulating systems of... -
Memory, landscape and event: How Ndebele labour tenants interpret and reclaim the past
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Chris J van Vuuren --- Department of Anthropology and Archaeology,The article discusses the roots of memory of former Ndebele labour tenants, and how these memories manifest in landscape, object and event. Recognising the role of history that bound most of the Ndundza community into labour tenancy, the author unpacks... -
Public holidays as lieux de mémoire: nation-building and the politics of public memory in South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Sabine Marschall --- Cultural and Heritage Tourism Programme, South AfricaThis article engages with public holidays in post-apartheid South Africa as lieux de mémoire, ‘sites of memory’ that preserve particular interpretations of historical events and selected heroes for inscription into the collective memory of the nation. It first traces the... -
From ‘One Namibia, one Nation’ towards ‘Unity in Diversity’? Shifting representations of culture and nationhood in Namibian Independence Day celebrations, 1990–2010
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Michael Uusiku Akuupa --- Dept. of Anthropology and Sociology, South Africa Godwin Kornes --- Dept. of Anthropology and African Studies, GermanyIn 2010 Namibia celebrated its twentieth anniversary of independence from South African rule. The main celebrations in the country's capital Windhoek became the stage for an impressively orchestrated demonstration of maturing nationhood, symbolically embracing postcolonial policy concepts such as ‘national... -
National days between commemoration and celebration: remembering 1947 and 1960 in Madagascar
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Mareike Späth --- Johannes Gutenberg University Mainz, Germany Helihanta Rajaonarison --- Université d'Antananarivo, MadagascarToday Madagascar officially celebrates two national holidays. 29 March is dedicated to the memory of anticolonial resistance in 1947, the commemoration of the dead and the decoration of surviving combatants. 26 June in contrast is celebrated as Madagascar's return to... -
Beyond ethical imperatives in South African anthropology: morally repugnant and unlikeable subjects
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ilana van Wyk --- Institute for Humanities in Africa (HUMA), South AfricaIn this article, I argue that anthropologists' dislike of their subjects in the field poses both epistemological and ethical questions that go beyond concerns about harming or exploiting those we study, about maintaining human relationships, or about the self-reflexivity and... -
Egg morphology of Swift Terns in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Davide Gaglio --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Timothée R Cook --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, South Africa Richard B Sherley --- Animal Demography Unit and Marine Research Institute, Department of Biological Sciences, South AfricaMorphology of Swift Tern Thalasseus bergii bergii eggs was examined on Robben Island, South Africa. A recently formed colony was found abandoned en masse, probably following human disturbance, and 146 freshly laid eggs were collected. The mean±SD nest density was... -
Temporal distribution of baseline characteristics and association with early mortality among HIV-positive patients at University College Hospital, Ibadan, Nigeria
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joshua.O. Akinyemi --- Department of Epidemiology and Medical Statistics, College of Medicine, Nigeria Olubukola A. Adesina --- Department of Obstetrics and Gynaecology, College of Medicine, Nigeria Modupe.O. Kuti --- Department of Chemical Pathology, College of Medicine, Nigeria Babatunde.O. Ogunbosi --- Department of Paediatrics, College of Medicine, Nigeria Achiaka E. Irabor --- Department of Family Medicine, University College Hospital, Ibadan, Nigeria Georgina N. Odaibo --- Department of Virology, College of Medicine, Nigeria David O. Olaleye --- Department of Virology, College of Medicine, Nigeria Isaac F. Adewole --- Department of Obstetrics and Gynaecology, College of Medicine, NigeriaThe first six months of HIV care and treatment are very important for long-term outcome. Early mortality (within 6 months of care initiation) undermines care and treatment goals. This study assessed the temporal distribution in baseline characteristics and early mortality... -
Temporal changes in cranial size in South African vlei rats (Otomys): evidence for the ‘third universal response to warming’
Item type: Journal Article • Journal: African Zoology • Authors: Aluwani Nengovhela --- Department of Ecology and Resource Management, School of Environmental Sciences, South Africa Roderick M Baxter --- Department of Ecology and Resource Management, School of Environmental Sciences, South Africa Peter J Taylor --- South African Research Chair on Biodiversity Value and Change in the Vhembe Biosphere Reserve, School of Mathematics and Natural Sciences, South AfricaUsing museum collections and recently collected specimens we studied geographical and temporal (from 1906 to 2013) changes in skull size of two sibling species of rodents, Otomys auratus and O. angoniensis, in northern South Africa occupying distinct temperate grassland (O... -
Rethinking Memory in Valerie Cuthbert's The Great Siege of Fort Jesus
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Wafula Yenjela --- Department of English, Stellenbosch, South AfricaThis article explores memory as remembered and re-presented by Valerie Cuthbert (1970) in The Great Siege of Fort Jesus: an Historical Novel. In the article, I reflect on the significance of memory in the novel as agency that foregrounds excluded... -
Causes of Death in Patients Treated at a Tertiary Hospital in the Limpopo Province: a Retrospective Study from 2008-2010
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: N Malangu --- Department of Epidemiology and Biostatistics, S T Ntuli --- Department of Public Health Medicine, M Alberts --- Department of Medical Sciences,The aim of this study was to determine mortality rates and identify associated causes at a tertiary hospital situated in the Limpopo province of South Africa. Death notification forms from Pietersburg Mankweng Hospital Complex were retrieved and reviewed for the... -
The reproductive biology of an open-water spawning Lake Malawi cichlid, Copadichromis chrysonotus
Item type: Journal Article • Journal: African Zoology • Authors: Lance W. Smith --- Research Officer, MalawiCopadichromis chrysonotus is a zooplanktivorous cichlid member of the diverse fish community inhabiting Lake Malawi’s rocky, littoral habitat. Like most Lake Malawi cichlids, this species’ reproductive strategy is based on maternal mouthbrooding, but it is the only littoral species known... -
Geographic variation in sexual size dimorphism in the rock agama, Agama atra (Sauria: Agamidae)
Item type: Journal Article • Journal: African Zoology • Authors: A.F. Flemming --- National Museum, South Africa P. le F.N. Mouton --- Department of Zoology, South AfricaSignificant sexual dimorphism in overall size occurs in the rock agama, Agama atra (Sauria; Agamidae), with males growing larger than females. Geographic variation in the degree of sexual size dimorphism also exists, males growing significantly larger than females in Namaqualand... -
Sexual size dimorphism in the lizard Oplurus cuvieri cuvieri (Squamata, Opluridae) from Madagascar
Item type: Journal Article • Journal: African Zoology • Authors: Herilala J.A.R Randriamahazo --- Department of Zoology, JapanSexual size dimorphism in the medium-sized lizard Oplurus cuvieri cuvieri, which is endemic to the dry deciduous forest of Madagascar, is presented. Adults are sexually dimorphic in body size, head size, and tail length. Males have a greater snout–vent length... -
Cercariae shed by Bulinus tropicus (Krauss, 1848) in the Free State, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: P.H. King --- Department of Biology, South Africa J.G. van As --- Department of Zoology and Entomology, South AfricaThe present study forms part of a survey of the snail-borne trematode parasites in the Free State Province, South Africa. The planorbid mollusc Bulinus tropicus (Krauss, 1848) is the most abundant and widespread freshwater snail in this area. Parasitological studies... -
Studies on African zygaenoid moths (Lepidoptera: Zygaenoidea): adult morphology of Psycharium montanum (Somabrachyidae)
Item type: Journal Article • Journal: African Zoology • Authors: H. Geertsema --- Department of Entomology and Nematology, South AfricaThe morphology of the adult male of Psycharium montanum is described and illustrated to serve as a basis for subsequent taxonomic and systematic studies on African flannel moths and related taxa. P. montanum exhibits features showing closer affinity to Limacodidae... -
Taste buds in the palatal mucosa of snakes
Item type: Journal Article • Journal: African Zoology • Authors: Herman Berkhoudt --- Evolutionary Morphology, The Netherlands Perrin Wilson --- Department of Biology, U.S.A Bruce Young --- Department of Biology, U.S.AAn examination of the oral mucosa of Crotalus and several Scolecophidia revealed the presence of taste buds. The taste buds in these two divergent groups of snakes are similar in appearance, and correspond to previous descriptions of gustatory organs in... -
Invasion of sandflats in Langebaan Lagoon, South Africa, by the alien mussel Mytilus galloprovincialis: size, composition and decline of the populations
Item type: Journal Article • Journal: African Zoology • Authors: N. Hanekom --- South African National Parks, South Africa P. Nel --- West Coast National Park, South AfricaSince the 1980s the introduced Mediterranean mussel (Mytilus galloprovincialis) has successfully invaded the southern African coastline and has become the dominant species on rocky intertidal shores of the west coast. This study investigates a recent extension of its distribution into... -
Structure and cytology of the testes of Labeo victorianus (Pisces: Cyprinidae)
Item type: Journal Article • Journal: African Zoology • Authors: Justus Rutaisire --- Department of Wildlife and Animal Resources Management, Uganda Ruth T. Muwazi --- Department of Wildlife and Animal Resources Management, Uganda Anthony J. Booth --- Department of Ichthyology and Fisheries Science, South AfricaTestes macromorphology and histomorphology together with sperm cytology are described for a potamodrometic cyprinid fish, Labeo victorianus, from Lake Victoria. Testes were found to be paired and elongate, suspended by a mesorchium on either side of the swim bladder. A... -
Additional morphological information on two species of Caligus (Copepoda: Caligidae) parasitic on South African marine and estuarine fish
Item type: Journal Article • Journal: African Zoology • Authors: N.J. Grobler --- Department of Zoology and Entomology, South Africa J.G. Van As --- Department of Zoology and Entomology, South Africa P.A.S. Olivier --- School of Molecular and Life Sciences, South AfricaTwo species of Caligus that are parasitic on fish were collected from Lake St Lucia, South Africa. -
Additional morphological information on Oculotrema hippopotami Stunkard, 1924 (Monogenea: Polystomatidae) parasitic on the African hippopotamus
Item type: Journal Article • Journal: African Zoology • Authors: Louis H. du Preez --- School of Environmental Sciences and Development, South Africa Itumeleng A. Moeng --- Department of Zoology and Entomology, South AfricaOculotrema hippopotami Stunkard, 1924, is the only monogenean known from a homoiotherm host, namely the African hippopotamus (Hippopotamus amphibius Linnaeus, 1758). The original description was based on five shrunken, unflattened specimens. Initially O. hippopotami was not widely accepted as a... -
Sexual dimorphism in the African legless skink subfamily Acontiinae (Reptilia: Scincidae)
Item type: Journal Article • Journal: African Zoology • Authors: N.J.L. Heideman --- Department of Zoology and Entomology, South Africa S.R. Daniels --- Department of Botany and Zoology, South Africa P.L. Mashinini --- Department of Zoology and Entomology, South Africa M.E. Mokone --- Department of Zoology and Entomology, South Africa M.L. Thibedi --- Department of Zoology and Entomology, South Africa M.G.J. Hendricke --- Department of Biodiversity and Conservation Biology, South Africa B.A. Wilson --- Western Cape Education Department, South Africa R.M. Douglas --- National Museum, South AfricaThe extent to which sexual dimorphism in snout–vent length, tail length and head shape (length, width and height) manifests itself in the legless fossorial skink subfamily Acontiinae was investigated in representatives of all four of its genera, Acontias, Microacontias, Acontophiops... -
Juvenile population dynamics of Oreochromis mossambicus in an intermittently open estuary at the limit of its natural distribution
Item type: Journal Article • Journal: African Zoology • Authors: B.R. Ellender --- Department of Ichthyology and Fisheries Science, South Africa O.L.F. Weyl --- Department of Ichthyology and Fisheries Science, South Africa M.K. Shanyengange --- Department of Ichthyology and Fisheries Science, South Africa P.D. Cowley --- South African Institute of Aquatic Biodiversity, South AfricaJuvenile Oreochromis mossambicus in the 25 ha, temperate, intermittently open, East Kleinemonde Estuary in the Eastern Cape, South Africa (33°32’S, 27°03’E), showed a seasonal shift in distribution, occupying all areas of the estuary in summer and, subsequently, being limited to... -
Diversification of prey capture techniques among the piscivores in Lake Tana’s (Ethiopia) Labeobarbus species flock (Cyprinidae)
Item type: Journal Article • Journal: African Zoology • Authors: Martin de Graaf --- Experimental Zoology Group, Wageningen, the Netherlands Gerco H. van de Weerd --- Experimental Zoology Group, Wageningen, the Netherlands Jan W.M. Osse --- Experimental Zoology Group, Wageningen, the Netherlands Ferdinand A. Sibbing --- Experimental Zoology Group, Wageningen, the NetherlandsLake Tana harbours the only known intact species flock of large cyprinid fishes (15 Labeobarbus spp.). One of the most curious aspects of this species flock is the large number (8) of piscivorous species. Cyprinids are not well designed for... -
Ontogenetic variation and craniometric sexual dimorphism in the social giant mole-rat, Fukomys mechowii (Rodentia: Bathyergidae), from Zambia
Item type: Journal Article • Journal: African Zoology • Authors: C.T. Chimimba1 --- Department of Zoology and Entomology, South Africa A.M. Sichilima --- Department of Zoology and Entomology, South Africa C.G. Faulkes --- School of Biological and Chemical Sciences, U.K. N.C. Bennett --- Department of Zoology and Entomology, South AfricaThe degree of maxillary molar tooth-row eruption and wear were used to assign samples of the social giant mole-rat, Fukomys mechowii, from Zambia, into nine relative age classes in order to assess ontogenetic (age) variation and craniometric sexual dimorphism, with... -
Digestibility of nutrients and aspects of the digestive physiology of the greater cane rat, journalThryonomys swinderianus journalin two seasons
Item type: Journal Article • Journal: African Zoology • Authors: A. Van Zyl --- Department Zoology and Entomology, South Africa J.H. Delport --- Department Zoology and Entomology, South AfricaThe greater cane rat, Thryonomys swinderianus, utilizes high fibrous plant material and is an important meat source in West Africa. An insight in its digestive physiology will enhance our understanding of its feeding habits. Digestibility coefficients of the food were... -
Adult African sharptooth catfish, Clarias gariepinus, population dynamics in a small invaded warm-temperate impoundment
Item type: Journal Article • Journal: African Zoology • Authors: Anthony J. Booth --- Department of Ichthyology and Fisheries Science, South Africa Graham R.L. Traasg --- Department of Ichthyology and Fisheries Science, South Africa Olaf L.F. Weyl [AN0002]African sharptooth catfish, Clarias gariepinus, is a successful aquatic invader as it has a eurytopic physiology, is highly fecund, grows quickly and has an omnivorous diet. Despite possible threats that include predation of and competition with indigenous species, habitat degradation,... -
Genetic variability in the ocellated lizard Timon tangitanus in Morocco
Item type: Journal Article • Journal: African Zoology • Authors: Ana Perera --- CIBIO UP, Centro de Investigação em Biodiversidade e Recursos Genéticos, Portugal James D. Harris --- CIBIO UP, Centro de Investigação em Biodiversidade e Recursos Genéticos, PortugalThe ocellated lizards in the Timon lepidus/tangitanus/pater complex include the largest lacertids living in continental Europe and North Africa. Long considered a single species (T. pater), the division of the North African ocellated lizards into two species, T. pater in... -
A review of paediatric anaesthetic-related mortality, serious adverse events and critical incidents
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: L Cronjé --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South AfricaAnaesthetists increasingly face questions from parents on the long-term outcomes of anaesthesia, and yet more immediate anaesthetic risks are not understood, nor explained to families. This review focused on paediatric anaesthetic-related mortality, cardiac arrest and anaesthetic-related serious adverse events and... -
Strength and stiffness capacity utilisation of timber members in roof truss structures
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: C Brand Wessels --- Department of Forest and Wood Science, South Africa Nils-Olaf Petersen --- Department of Forest and Wood Science, South AfricaThe main objective of this study was to determine which property, of the six strength and stiffness properties used in structural timber design, was the most influential in the design of nail-plated roof trusses. Thirty recently completed nail-plated roof truss... -
The ambivalence of neighbourhood in urban Burkina Faso
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Jesper Bjarnesen --- The Nordic Africa Institute, SwedenIn the informal settlement of Sarfalao, in the city of Bobo-Dioulasso in south-western Burkina Faso, relations between newcomers and long-term residents in the neighbourhood were strained by the competition for living space and the opportunities to build a livelihood in... -
Church rules? The lines of ordentlikheid among Stellenbosch Afrikaners
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Annika Teppo --- Nordic Africa Institute, SwedenEthnographic accounts of South African moral codes have mostly focused on so-called black and coloured areas, while the ideals and practices of white people have remained largely invisible and undiscussed. In the post-apartheid era, Afrikaners’ everyday religious practices as well... -
Sex determination of African Penguins Spheniscus demersus using bill measurements: method comparisons and implications for use
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kate J Campbell --- Animal Demography Unit, Department of Biological Sciences, South Africa Danielle Farah --- School of Biological Sciences, UK Sarah Collins --- School of Biological Sciences, UK Nola J Parsons --- Southern African Foundation for the Conservation of Coastal Birds, South AfricaAfrican Penguins Spheniscus demersus are sexually dimorphic; on average, males are larger than females but measurements overlap making sex determination difficult through observations alone. We developed a discriminant function, using bill length and depth from a sample of birds sexed... -
The potential of young, green finger-jointed Eucalyptus grandis lumber for roof truss manufacturing
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Philip L Crafford --- Department of Forest and Wood Science, South Africa C Brand Wessels --- Department of Forest and Wood Science, South AfricaSouth Africa is a timber-scarce country that will most probably experience a shortage of structural softwood lumber in the near future. In this study the concept of using young, green finger-jointed Eucalyptus grandis lumber was evaluated for possible application in... -
Young emerging adults’ graduateness and career adaptability: Exploring the moderating role of self-esteem
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Sadika Ismail --- Department of Human Resource Management, Nadia Ferreira --- Department of Human Resource Management, Melinde Coetzee --- Department of Industrial & Organisational Psychology,This study investigated the moderating role of self-esteem on young emerging adults’ in their school-to-work transition phase of graduateness skills and career adaptability. A non-probability convenience sample (n=332) of undergraduate black (98.5%) and female (62%) young emerging adults (18–29 years)... -
Marcusenius desertus sp. nov. (Teleostei: Mormyridae), a mormyrid fish from the Namib desert
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LB Kramer --- Zoological Institute, Germany FH van der Bank --- African Centre for DNA Barcoding, Department of Zoology, South Africa M Wink --- Institute of Pharmacy and Molecular Biotechnology, GermanyWe critically compared Marcusenius specimens from the mouth of the Cunene River on the Namibia/Angola border, a harsh desert environment on the Atlantic Ocean coast virtually devoid of aerial insects with aquatic larvae which are an important food item, with... -
Sex in troubled times: moral panic, polyamory and freedom in north-west Namibia
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Steven Van Wolputte --- Institute for Anthropological Research in Africa, BelgiumIn Namibia, early missionaries among the Herero were intrigued by the important role of the matriclan, as it did not fit their ideals of a pastoral society. Despite their obsession with female sexuality, metonymically expressed in concerns over political organisation... -
Morphometric variation in the cutlassfish Trichiurus lepturus on the Kenyan coast: implications for stock identification and management
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SM Mwakiti --- University of Eldoret, Kenya B Kaunda-Arara --- University of Eldoret, Kenya CM Mlewa --- Pwani University, Kenya R Ruwa --- Kenya Marine Fisheries Research Institute, KenyaMorphometric variation was used to study population structure of the cutlassfish Trichiurus lepturus on the Kenyan coast. In all, 16 morphometric measurements taken from 193 individuals from six sites were subjected to multivariate statistical analysis in order to determine possible... -
Genetic diversity of bottle gourd (Lagenaria siceraria (Molina) Standl.) landraces of South Africa assessed by morphological traits and simple sequence repeat markers
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Jacob Mashilo --- Towoomba Research Station, Limpopo Department of Agriculture, South Africa Hussein Shimelis --- African Centre for Crop Improvement, South Africa Alfred Odindo --- Crop Science Discipline, South AfricaBottle gourd (Lagenaria siceraria (Molina) Standl.) is an important crop in rural communities in South Africa but it remains under-researched. The objective of this study was to assess the genetic diversity present amongst bottle gourd landraces grown by smallholder farmers... -
Business ethics and sustainability
Item type: Journal Article • Journal: • Authors: Conrad Lashley --- Hospitality Studies, Academy of International Hospitality Research, Stenden Hotel Management School, Stenden University of Applied Sciences, Leeuwarden, The NetherlandsBusiness ethics provides a potential analytical framework through which to evaluate management practice in general and sustainability in particular. Management actions can be examined to the extent that they are good or bad, or legal or illegal, suggesting a four-quadrant... -
Retrospective comparison of cytological and histological bone marrow morphology in adult antiretroviral-naïve and antiretroviral experienced human immunodeficiency virus-infected patients with peripheral blood cytopaenias
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Suraya Naidoo --- Department of Haematology, South Africa Vincent Louis Naicker --- National Health Laboratory Services, South AfricaBackground: A cohort of human immunodeficiency virus (HIV)-positive patients presenting to a quaternary hospital in KwaZulu-Natal, South Africa over a period of one year was identified and morphological analyses of their bone marrow aspirates and trephine biopsies (BMAT) undertaken. -
Furcocercous cercariae shed by the freshwater snails Pila occidentalis (Mousson, 1887) and Biomphalaria pfeifferi (Krauss, 1848) in the Okavango Delta, Botswana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: C Jansen van Rensburg --- Department of Zoology and Entomology, South Africa PH King --- Department of Biology, South Africa JG van As --- Department of Zoology and Entomology, South AfricaDuring July 2009 and 2010 surveys of snail-borne larval trematodes of the Okavango Delta floodplains and lagoons were undertaken. Cercaria mohemboense were shed by Pila occidentalis (Mousson, 1887) and Cercaria dubaensis and Cercaria indistinctus were shed by Biomphalaria pfeifferi (Krauss,... -
Community-based agricultural interventions in the context of food and nutrition security in South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: M. Faber --- Nutritional Intervention Research Unit, C. Witten --- Nutritional Intervention Research Unit, S. Drimie --- Regional Coordinator, RENEWAL,Despite South Africa being a food-secure country in terms of aggregate food availability, it is listed by the World Health Organization as one of 36 high-burden countries, home to large numbers of stunted children. Recent findings, in the context of... -
The impact of morbidity on food intake in rural Kenyan children
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Cg Neumann --- Departments of Community Health Sciences and Pediatrics, USA M. Marquardt --- Emergency Medicine, USA No Bwibo --- Department of Pediatrics, KenyaObjective: To quantify the effect of common illnesses on energy intake in rural Kenyan children. -
An investigation into utilising gestational body mass index as a screening tool for adverse birth outcomes and maternal morbidities in a group of pregnant women in Khayelitsha
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Hr Davies --- Division of Human Nutrition, J Visser --- Division of Human Nutrition, M Tomlinson --- Department of Psychology, Mj Rotheram-Borus --- Semel Institute and the Department of Psychiatry University of California, USA C Gissane --- School of Human and Applied Science, UK J Harwood --- Semel Institute and the Department of Psychiatry University of California, USA I LeRoux --- Philani Child Health and Nutrition Centre,Objective: The aim of this study was to investigate the ability of the gestational body mass index (BMI) method to screen for adverse birth outcomes and maternal morbidities. -
Ethics misconduct among dietetic practitioners in South Africa (2007–2013)
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: N. Nortjé --- Department of Dietetics, Wa Hoffmann --- Department of Biomedical Sciences,Morals refer to a belief-derived system according to which a certain group governs its behaviour, whereas ethics is a broader term whereby belief-system-based behaviour is replaced by a generic code of behaviour, often founded in an international code. In South... -
Sexual size dimorphism and morphometric sexing in a North African population of Laughing Doves Spilopelia senegalensis
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tasnim Ayadi --- Département des Sciences de la Vie, Faculté des Sciences, Tunisia Abdessalem Hammouda --- Département des Sciences de la Vie, Faculté des Sciences, Tunisia Samia Kididi --- Laboratoire d’Elevage et Faune Sauvage, Tunisia Mohamed Habib Yahyaoui --- Laboratoire d’Elevage et Faune Sauvage, Tunisia Slaheddine Selmi --- Département des Sciences de la Vie, Faculté des Sciences, TunisiaLike the majority of Columbiformes, the Laughing Dove Spilopelia senegalensis is sexually monomorphic in plumage, but seems to be slightly dimorphic in size. However, due to the lack of studies little is known about the sexual size dimorphism in this... -
Investigation of the coexistence of CKD and non-communicable chronic diseases in a PBM company in South Africa
Item type: Journal Article • Journal: South African Family Practice • Authors: WP Meuwesen --- Medicine Usage in South Africa (MUSA), South Africa JM du Plessis --- Medicine Usage in South Africa (MUSA), South Africa JR Burger --- Medicine Usage in South Africa (MUSA), South Africa MS Lubbe --- Medicine Usage in South Africa (MUSA), South Africa M Cockeran --- Medicine Usage in South Africa (MUSA), South AfricaBackground: Chronic kidney disease (CKD) is a public health problem, with increasing global prevalence. Several factors could influence the prognosis of CKD, including comorbid chronic conditions. This study investigated the coexistence of CKD and non-communicable chronic diseases in the private... -
Diversity and distribution of seagrasses in the Union of the Comoros
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CNS Poonian --- Community Centred Conservation (C3), UK K Tuharska --- C3 Madagascar and Indian Ocean Islands Programme, Madagascar MD Hauzer --- C3 Madagascar and Indian Ocean Islands Programme, MadagascarThis study represents the first in situ assessment of seagrasses in the Union of the Comoros. The presence of the following 10 species (ranked in order of abundance) was confirmed: Thalassia hemprichii, Thalassodendron ciliatum, Syringodium isoetifolium, Halodule wrightii, Cymodocea rotundata,... -
Heart rate variability predicts 30-day all-cause mortality in intensive care units
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: David G Bishop --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Robert D Wise --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Carolyn Lee --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Richard P von Rahden --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Reitze N Rodseth --- Perioperative Research Group, Pietermaritzburg Metropolitan Department of Anaesthetics, South AfricaBackground: Autonomic nervous function, as quantified by heart rate variability (HRV), has shown promise in predicting clinically important outcomes in the critical care setting; however, there is debate concerning its utility. HRV analysis was assessed as a practical tool for... -
Wetland hydrology indicators of Maluti Mountains wetlands in Lesotho
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Botle E Mapeshoane --- Department of Soil, Crop and Climate Sciences, South Africa Cornelius W van Huyssteen --- Department of Soil, Crop and Climate Sciences, South AfricaHydric soil morphological features are generally accepted to be reliable indicators of wetland hydrology. The relationship between soil water saturation and soil morphological indices is evaluated in this study from bi-weekly water level data taken over a period of two... -
Determining the correct identity of South African Marthasterias (Echinodermata: Asteroidea)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AG Wright --- Department of Biological Sciences, South Africa R Pérez-Portela --- Center for Advanced Studies of Blanes (CEAB-CSIC), USA CL Griffiths --- Department of Biological Sciences, South AfricaMarthasterias glacialis are found in the cool-temperate waters of the north-eastern Atlantic Ocean, in the subtropical waters of the Mediterranean Sea and along the south-western tip of Africa. The South African Marthasterias population includes two morphotypes, a smooth, spineless rarispina... -
Correlates of tobacco use among tuberculosis patients in South Africa: A brief report
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- ASEAN Institute for Health Development, ThailandThis study examined tobacco use by tuberculosis (TB) patients through socio-health variables. The sample comprised 724 TB patients (mean age 37.1 years, SD = 11.3; males = 71.4%) receiving care from 40 primary health facilities across South Africa. They completed... -
Skull size and shape variation in Psammomys spp. (Rodentia, Gerbillinae) from Tunisia, with emphasis on the impact of allometric variation on species recognition
Item type: Journal Article • Journal: African Zoology • Authors: Hanene Khemiri --- Laboratory of Animal Ecology, Department of Biology, Sciences Faculty of Tunis, Tunisia Paolo Colangelo --- CNR, Italy M’barek Chétoui --- Laboratory of Animal Ecology, Department of Biology, Sciences Faculty of Tunis, Tunisia Saïd Nouira --- Laboratory of Animal Ecology, Department of Biology, Sciences Faculty of Tunis, TunisiaIn Tunisia both Psammomys obesus and P. vexillaris are found. These taxa have been the subject of taxonomic controversy for some time, due to variability in the classical morphological characters used for taxonomic recognition. In this study we investigated skull... -
Integrated intervention for mental health co-morbidity in HIV-positive individuals: A public health assessment
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Monika dos Santos --- Department of Psychology, South Africa Gustaaf Wolvaardt --- Foundation for Professional Development, South AfricaIn South Africa, where it is estimated that more people have HIV than anywhere else in the world, HIV/AIDS and psychological disorder co-morbidity have been shown both to exacerbate the late diagnosis and treatment of psychological disorders and to affect... -
First report of cyanobacterial diversity and microcystins in a Microcystis
strain from Sidi Boughaba, a Moroccan coastal lagoon Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Douma --- Department of Biology, Laboratory of Biology and Biotechnology of Microorganisms, N Manaut --- Health and Environment Unit, Provincial Direction of the Ministry of National Education, Morocco B Oudra --- Department of Biology, Laboratory of Biology and Biotechnology of Microorganisms, M Loudiki --- Department of Biology, Laboratory of Biology and Biotechnology of Microorganisms,The cyanobacterial diversity of Sidi Boughaba, a Moroccan coastal lagoon and Ramsar site, was evaluated and its potentially toxic species were isolated and characterised. This study was the first time that cyanobacterial diversity and cyanotoxin production have been characterised in... -
Otolith shape as a valuable tool to evaluate the stock structure of swordfish Xiphias gladius in the Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Mahé --- Ifremer, Laboratoire Ressources Halieutiques, France H Evano --- Ifremer, Délégation Océan Indien, France T Mille --- Ifremer, Laboratoire Ressources Halieutiques, France D Muths --- Université Européenne de Bretagne, France J Bourjea --- , FranceSwordfish Xiphias gladius is an oceanic-pelagic species. Its population structure in the Western Indian Ocean was studied from the shape of the sagittal otoliths of 391 individuals collected from 2009 to 2014. Normalised elliptical Fourier descriptors (EFDs) were extracted automatically... -
Comparative and theoretical framework of Brazilian hospitality studies
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Elizabeth K. Wada --- School of Hospitality and Tourism, Anhembi Morumbi University, Brazil Airton José Cavenaghi --- School of Hospitality and Tourism, Anhembi Morumbi University, Brazil Maria do Rosário Rolfsen Salles --- School of Hospitality and Tourism, Anhembi Morumbi University, BrazilThe purpose of this article is to give a summary of the bibliographical production of the first publications made by the Master's Programme in Hospitality at the Anhembi Morumbi University, Sã;o Paolo, the compilations edited by Célia Maria de Moraes... -
Business ethics and sustainability
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Conrad Lashley --- Hospitality Studies, Academy of International Hospitality Research, Stenden Hotel Management School, The NetherlandsBusiness ethics provides a potential analytical framework through which to evaluate management practice in general and sustainability in particular. Management actions can be examined to the extent that they are good or bad, or legal or illegal, suggesting a four-quadrant... -
Cryptic variation in the Moroccan high altitude lizard Atlantolacerta andreanskyi (Squamata: Lacertidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Mafalda Barata --- , , Portugal Ana Perera --- , , Portugal D. James Harris --- , , PortugalAtlantolacerta andreanskyi is a mountain specialist lacertid lizard, restricted to areas above 2400 m of the High Atlas Mountains of Morocco, with apparently no geographic connection between different populations. In a recent molecular study, populations from A. andreanskyi collected across... -
Occurrence and ecological aspects of the two-fingered skink Chalcides mauritanicus in the Chafarinas Islands in North Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: José Martín --- , , Spain Roberto García-Roa --- , , Spain Jesús Ortega --- , , Spain Pilar López --- , , Spain Ana Pérez-Cembranos --- , , Spain Alicia León --- , , Spain Luis V. García --- , , Spain Valentín Pérez-Mellado --- , , SpainThe two-fingered skink, Chalcides mauritanicus, is a fossorial species from North Africa, where it has only been found at a few localities on sandy sea shores. Virtually nothing is known about its ecology. For the first time, we report the... -
Sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Intissar Nasri --- , , Tunisia Abdessalem Hammouda --- , , Tunisia Foued Hamza --- , , Tunisia Slaheddine Selmi --- , , TunisiaInvestigating how patterns of sexual size dimorphism vary among local populations may be useful for understanding size evolution in lizards. We investigated patterns of sexual size dimorphism in a Tunisian population of Bosk's fringe-toed lizards Acanthodactylus boskianus asper, in relation... -
Sexual dimorphism in morphological traits and scaling relationships in two populations of Gallotia stehlini (Fam. Lacertidae: Squamata) from Gran Canaria
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Cristina Rivero Suárez --- , , Spain Miguel Angel Rodríguez-Domínguez --- , Miguel Molina-Borja --- , , SpainLizards of the genus Gallotia, endemic to the Canary Islands, show morphological and colouration varieties that are related to within island variation in orographic and climatic characteristics. This study examines sexual size dimorphism (SSD) within and between population variation in... -
Clutch, egg and hatchling characteristics in the Souss Valley tortoises, Testudo graeca soussensis Pieh, 2001 (Testudines: Testudinidae) from an arid steppe-land of west-central Morocco
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Nawal Hichami --- , , Morocco Mohammed Znari --- , , Morocco Mohamed Naimi --- , , Morocco Salwa Namous --- , , MoroccoClutch, egg and hatchling characteristics in the Souss Valley tortoises Testudo graeca soussensis (Testudinidae) from an arid steppe area of west-central Morocco were investigated in semi captivity in spring–early summer 2011. Mating activity occurs twice in the year, mainly in... -
Wide variation in carapacial scute patterns in a natural population of speckled tortoises, Homopus signatus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Victor J.T. Loehr --- , NetherlandsThe arrangement of scutes on the carapaces of extant chelonians is very similar among species, but intraspecific deviations from typical scute patterns are common. Because intraspecific variation may relate to inbreeding depression, unfavourable egg incubation conditions and the presence of... -
Variation in body size and morphometric traits of males and females of the wall gecko, Tarentola delalandii (Phyllodactylidae) from different environments on Tenerife
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: María de Fuentes-Fernández --- , Spain María Mercedes Suárez-Rancel --- , , Spain Miguel Molina-Borja --- , SpainWe analysed sexual dimorphism in body size and several other morphological traits of two populations of Tarentola delalandii on the island of Tenerife (San Cristóbal de La Laguna in the North, and Granadilla de Abona in the South), whose habitats... -
Decision-support tool for management of miombo woodlands: a matrix model approach
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Wilson A Mugasha --- Department of Ecology and Natural Resource Management, Norway Ole M Bollandsås --- Department of Ecology and Natural Resource Management, Norway Terje Gobakken --- Department of Ecology and Natural Resource Management, Norway Eliakimu Zahabu --- Department of Forest Mensuration and Management, Tanzania Josiah Z Katani --- Department of Forest Mensuration and Management, Tanzania Tron Eid --- Department of Ecology and Natural Resource Management, NorwayRational forest management planning requires information on the present forest state and on future development. However, forest management planning in Tanzania has often been done without any information on forest development because appropriate tools are lacking. This study presents a... -
Popular Cultural Memory in Chris Abani’s Graceland
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Christopher Ouma --- Department of English, South AfricaThis essay argues that Chris Abani’s Graceland uses popular culture as a project of narrative memory. This project of memory involves the performance of popular expressive cultures across a range of mediated texts — literary and musical — within the... -
An HIV-positive status and short term perioperative mortality – a systematic review
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Yoshan Moodley --- Discipline of Anaesthesiology and Critical Care Medicine, South Africa Kumeren Govender --- Nelson R. Mandela School of Medicine, South AfricaBackground: A contemporary summary describing the impact of an HIV-positive status on short term perioperative mortality is lacking. -
Multiplex-ready PCR assay of SSR marker diversity among quality protein maize inbred parental lines
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Adeniyi S Atanda --- Department of Agronomy, Nigeria Gbadebo Olaoye --- Department of Agronomy, NigeriaPhenotypic markers have long been used for classification of maize (Zea mays) cultivars. However, because of shortcomings in detecting differences among closely related genotypes, coupled with sensitivity to environmental conditions, molecular marker techniques have been employed in the determination of... -
Equilibrium sorption isotherms of Moringa oleifera leaves at different temperatures
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sunday Samuel Sobowale --- Department of Food Technology, Nigeria Moruf Olanrewaju Oke --- Department of Food Science and Engineering, Nigeria Lukumon Ayinde Odunmbaku --- Department of Food Technology, Nigeria Oluwafemi Ayodeji Adebo --- Department of Biotechnology and Food Technology, Faculty of Science, South AfricaAdsorption and desorption isotherms for Moringa oleifera leaves were investigated using concentrated H2SO4 solutions to vary the micro-climate over different temperatures (27, 32, 37°C) and water activity (aw) (0.1–0.8). Plots of equilibrium moisture content (EMC) against aw were used to... -
Identity as a key factor in the acculturation of young Moroccan-Dutch adults
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Youssef Azghari --- Tilburg University, Avans University of Applied Sciences, The Netherlands Fons J. R. van de Vijver --- Tilburg University, The Netherlands, North-West University, South Africa, University of Queensland, Australia Erna Hooghiemstra --- Avans University of Applied Sciences, Tranzo, Tilburg University, The NetherlandsMany young Moroccan-Dutch in transition within the Dutch society face acculturation challenges and have limited social resources. We examined how different access to social capital (supportive networks among family, friends, and neighbourhood) and social identity of Moroccan-Dutch students (N =... -
Kenya’s Safaricom, Ceo Bob Collymore and M-Pesa: Extended Notes from Keynote Address
Item type: Journal Article • Journal: Africa Journal of Management • Authors: Moses N. Kiggundu --- Sprott School of Business, Carleton University, Canada Frederick Onyango Ogola --- Strathmore University Business School, KenyaThis article is an extension of the keynote address given by Safaricom’s chief executive officer (CEO) at the 2016 AFAM Conference. It provides details about Safaricom, Kenya’s leading mobile telecommunications corporation, Safaricom’s CEO, Mr. Collymore, and the iconic M-PESA mobile... -
An investigation of maternal mortality at a tertiary hospital of the Limpopo province of South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Sam Thembelihle Ntuli --- Research Development Administration, South Africa Mabina Mogale --- Department of Public Health: Epidemiology and Biostatistics, South Africa Francis LM Hyera --- Department of Public Health Medicine, South Africa Shan Naidoo --- Department of Community Health, School of Public Health, South AfricaObjective: To understand the elements influencing the maternal deaths in the Limpopo province, South Africa. -
Use of a chimeric transgene construct to confer broad resistance in zucchini (Cucurbita pepo L.) plants against cucurbit-infecting potyviruses occurring in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Jacques D Ibaba --- Discipline of Plant Pathology, School of Agriculture, Earth and Environmental Sciences, College of Agriculture and Environmental Sciences, South Africa Benice J Sivparsad --- Discipline of Plant Pathology, School of Agriculture, Earth and Environmental Sciences, College of Agriculture and Environmental Sciences, South Africa Mark D Laing --- Discipline of Plant Pathology, School of Agriculture, Earth and Environmental Sciences, College of Agriculture and Environmental Sciences, South Africa Augustine Gubba --- Discipline of Plant Pathology, School of Agriculture, Earth and Environmental Sciences, College of Agriculture and Environmental Sciences, South AfricaThe frequent identification of cucurbit-infecting viruses across the province of KwaZulu-Natal (KZN) in South Africa necessitates developing effective methods of controlling these diseases. Putative transgenic baby marrow (Cucurbita pepo L.) plants resistant to Zucchini yellow mosaic virus (ZYMV), Moroccan watermelon... -
Emergence response of sunflower (Helianthus annuus) cultivars to supra-optimal soil temperatures
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Lize Henning --- Department of Soil, Crop and Climate Sciences, South Africa Gert Ceronio --- Department of Soil, Crop and Climate Sciences, South Africa André A Nel --- Agricultural Research Council–Grain Crops Institute, South AfricaSeedling emergence is a sensitive stage during sunflower (Helianthus annuus L.) establishment. Abiotic stresses, such as high soil temperatures (above 40 °C), can cause delayed emergence resulting in uneven stand and ultimately poor yields. Therefore, the emergence and early growth... -
Moringa (Moringa oleifera) leaf extracts inhibit spore germination of Alternaria solani, causal agent of early blight disease of tomato (Solanum lycopersicum)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Culver Mvumi --- Department of Plant Production and Soil Science, South Africa Elizabeth Ngadze --- Department of Crop Science, Zimbabwe Diana Marais --- Department of Plant Production and Soil Science, South Africa Elsa S du Toit --- Department of Plant Production and Soil Science, South Africa Brighton M Mvumi --- Department of Soil Science and Agricultural Engineering, ZimbabweAlternaria solani is highly infective and can sporulate on tomato at 13.2 × 106 spores mL−1. The fungicidal effect of Moringa oleifera leaf chloroform and aqueous extracts (MLCE and MLAE, respectively) was investigated in vitro to determine the inhibitory effect... -
Developmental rates and morphological properties of fibres in two eucalypt clones at sites differing in water availability
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: DM Drew NW PammenterOne of the ways in which the global forestry industry can remain competitive is to improve the predictability of properties of fibres produced, particularly in plantations. Since the properties of the fibres are determined by growth and developmental processes, it... -
Effectiveness of Moringa oleifera seed as a coagulant in domestic wastewater treatment
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: K. A. Adeniran --- Department of Agricultural and Biosystems Engineering, Nigeria T. D. Akpenpuun --- Department of Agricultural and Biosystems Engineering, Nigeria B. A. Akinyemi --- Department of Agricultural and Biosystems Engineering, Nigeria R. A. Wasiu --- Department of Agricultural and Biosystems Engineering, NigeriaAn investigation on the effectiveness of Moringa oleifera seed for the treatment of domestic sewage was carried out in 15 litres plastic pots. Completely randomized design (CRD) experimental design was adopted. The treatments included: the control culture (no Moringa seed),... -
Community acceptability of minimally invasive autopsy (MIA) in children under five years of age in Soweto, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Nonhlanhla Ngwenya --- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, South Africa David Coplan --- Department of Anthropology, South Africa Susan Nzenze --- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, South Africa Nellie Myburgh --- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, South Africa Shabir Madhi --- Medical Research Council: Respiratory and Meningeal Pathogens Research Unit, South AfricaThis interdisciplinary study, using qualitative and ethnographic research methods, collected data from 330 men and women in Soweto, South Africa, in order to understand the community acceptability of minimally invasive autopsy (MIA) in children who died under five years of... -
Patterns and trends in seabird bycatch in the pelagic longline fishery off South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DP Rollinson --- FitzPatrick Institute of African Ornithology, DST/NRF Centre of Excellence, South Africa RM Wanless --- FitzPatrick Institute of African Ornithology, DST/NRF Centre of Excellence, South Africa PG Ryan --- FitzPatrick Institute of African Ornithology, DST/NRF Centre of Excellence, South AfricaBoth foreign and domestic pelagic longline fishing vessels operate in South Africa’s Exclusive Economic Zone and adjacent international waters where they kill hundreds of seabirds each year as bycatch. To update assessments of the impact of the pelagic longline fishery... -
Sexual dimorphism and plumage characteristics of juvenile Cape Vultures Gyps coprotheres
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Nobuhle T Mabhikwa --- Department of Forest Resources and Wildlife Management, Zimbabwe Margaret T Hirschauer --- VulPro NPO, South Africa Kerri Wolter --- VulPro NPO, South AfricaThe plumage of young Cape Vultures Gyps coprotheres is streaked to varying degrees on the breast, ruff and upper wing coverts. Observations of breast plumage (individual feather streak coverage and overall streaking intensity) were made on Cape Vultures aged one... -
Evaluating fit of the Prospective and Retrospective Memory Questionnaire (PRMQ) in a Nigerian adult population
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Philip C. Mefoh --- Department of Psychology, Nigeria Lawrence E. Ugwu --- Department of Psychology, Nigeria Agnes E. Okafor --- Department of Social Work, NigeriaThis study aimed to evaluate the latent structure of the Prospective and Retrospective Memory Questionnaire (PRMQ) and to estimate the reliability and validity of scores from the measure in a Nigerian adult population (N = 758; age range = 18... -
Relationship between somatic growth and otolith growth: a case study of the ornate jobfish Pristipomoides argyrogrammicus from the coast of Réunion (SW Indian Ocean)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Mahé --- Ifremer, Fisheries Laboratory, Sclerochronology Centre, France Y Aumond --- Ifremer, Le Port, France K Rabhi --- Ifremer, Fisheries Laboratory, Sclerochronology Centre, France R Elleboode --- Ifremer, Fisheries Laboratory, Sclerochronology Centre, France E Bellamy --- Ifremer, Laboratoire Environnement Ressources Languedoc Roussillon, France J Huet --- Ifremer, Le Port, France M Gault --- FRS Marine Laboratory, Scotland D Roos --- Ifremer, Le Port, FranceThe ornate jobfish Pristipomoides argyrogrammicus Valenciennes 1832 occurs in the Indo-West Pacific Ocean, where it is harvested by small-scale coastal fisheries. Management of this species is hindered by lack of adequate biological data. We sampled a total of 113 individuals... -
Neonatal sepsis in a Nigerian Tertiary Hospital: Clinical features, clinical outcome, aetiology and antibiotic susceptibility pattern
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Adediwura O Arowosegbe --- Department of Microbiology, College of Biosciences, Nigeria David A Ojo --- Department of Microbiology, College of Biosciences, Nigeria Iyabode O Dedeke --- Department of Paediatrics, Nigeria Olufunke B Shittu --- Department of Microbiology, College of Biosciences, Nigeria Olusola A Akingbade --- Department of Medical Microbiology and Parasitology, NigeriaBackground: Neonatal sepsis is a significant cause of neonatal mortality in developing countries. The aetiological agents and their antimicrobial susceptibility patterns are dynamic. Objectives: This study determined clinical features, aetiology, antimicrobial susceptibility and clinical outcome of neonatal sepsis in a... -
Crimean-Congo haemorrhagic fever presenting with undiagnosed chronic myeloid leukaemia
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Marius J Coetzee --- Department of Haematology and Cell Biology, South Africa Lucille H Blumberg --- Centre for Emerging and Zoonotic Diseases, National Institute for Communicable Diseases of the National Health Laboratory Service, South Africa Janusz T Paweska --- Special Pathogens Unit, South Africa Pat Leman --- Special Pathogens Unit, South Africa Robert Swanepoel --- Special Pathogens Unit, South Africa André de Kock --- Department of Haematology and Cell Biology, South AfricaA patient with Crimean-Congo haemorrhagic fever (CCHF) presented with a high white cell count and splenomegaly. Underlying chronic myeloid leukaemia was diagnosed. The management of this complex case was difficult, and the patient demised. This case illustrates that in patients... -
Mortality salience and prejudice towards ethno-religion minorities: Results and implications of a Nigerian study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Valentine C. Ezeh --- Department of Psychology, Nigeria Philip C. Mefoh --- Department of Psychology, Nigeria Samson K. Nwonyi --- Department of Psychology, Nigeria Joseph C. Aliche --- Department of Psychology, NigeriaThe present study examined mortality salience (MS) effect on prejudice towards an ethno-religion minority group of Northern Nigeria. Participants were 120 undergraduate students (females = 41.67%) with an age range between 17 and 38 years. The students completed a Distance-(relationship)-Situation... -
Preliminary evaluation of seed and germination traits in cowpea (Vigna unguiculata) genotypes
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Abe S Gerrano --- Agricultural Research Council–Vegetable and Ornamental Plant Institute, South Africa Willem S Jansen van Rensburg --- Agricultural Research Council–Vegetable and Ornamental Plant Institute, South Africa Patrick O Adebola --- Agricultural Research Council–Vegetable and Ornamental Plant Institute, South AfricaCowpea is a valuable crop for subsistence farmers in South Africa. Seed quantitative traits and germination parameters are important for good establishment of the crop, therefore the variation for these traits were determined for 44 cowpea genotypes. A field experiment... -
Agromorphological diversity of South African sorghum genotypes assessed through quantitative and qualitative phenotypic traits
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Alina M Mofokeng --- Agricultural Research Council–Grain Crops Institute, South Africa Hussein A Shimelis --- School of Agricultural, Earth and Environmental Sciences, African Centre for Crop Improvement, South Africa Mark D Laing --- School of Agricultural, Earth and Environmental Sciences, African Centre for Crop Improvement, South AfricaKnowledge of genetic diversity among sorghum genotypes is essential for their efficient utilisation in plant breeding schemes and effective conservation. The objective of this study was to assess the level of genetic diversity present among South African sorghum genotypes using... -
Variation in morphology and yield traits of Cucurbita landraces in northern KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Nontuthuko R Ntuli --- Department of Botany, Faculty of Science and Agriculture, South Africa Rufaro M Madakadze --- African Crop Improvement Alliance for a Green Revolution in Africa, Kenya Alpheus M Zobolo --- Department of Botany, Faculty of Science and Agriculture, South AfricaPumpkins, represented by various Cucurbita species, are important traditional leafy vegetable crops that are widely eaten in KwaZulu-Natal, South Africa, and elsewhere. Cucurbita landraces are exceptionally variable in morphology and productivity. Although these vegetables are grown extensively in South Africa,... -
Gender-related morphometric differences in mature and nestling Crowned Eagles, with comments on ringing of eagle nestlings in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Shane C McPherson --- School of Life Sciences, South Africa Mark Brown --- School of Life Sciences, South Africa Colleen T Downs --- School of Life Sciences, South AfricaAlthough most raptor species are sexually dimorphic, many species are non-discrete in some metrics. A limited amount of existing data for southern Africa suggests that Crowned Eagles Stephanoaetus coronatus exhibit non-discrete sexual dimorphism. Consequently, we investigated gender-related morphometric data of... -
Towards understanding habitat use patterns of an endangered galliform subspecies, Pternistis bicalcaratus ayesha: implications for conservation
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Saâd Hanane --- Forest Research Center, High Commission for Water, Forests and Desertification Control, Morocco Najib Magri --- Forest Research Center, High Commission for Water, Forests and Desertification Control, MoroccoDetermination of factors affecting habitat selection is a major topic in avian ecology, with strong implications for conservation purposes. Studies dealing with the impacts of ecological factors on breeding spurfowls, especially the Critically Endangered Double-spurred Spurfowl Pternistis bicalcaratus ayesha, are... -
Diet and time-activity budget of White-backed Mousebirds Colius colius in south-western South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Carlos Bosque --- Departamento de Biología de Organismos, Venezuela Carlos D Bosque --- Departamento de Arquitectura, Venezuela Penn Lloyd --- Percy FitzPatrick Institute of African Ornithology, DST–NRF Centre of Excellence, AustraliaMousebirds (Coliiformes) are unusual in having an exclusively vegetarian diet that includes substantial foliage and by using huddling and sunning to assist thermoregulation. Although previous studies have identified plant species and plant parts consumed by mousebirds, the relative importance of... -
Geostatistical modelling of the spatial life history of post-larval deepwater hake Merluccius paradoxus in the Benguela Current Large Marine Ecosystem
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Jansen --- Benguela Current Commission, Namibia K Kristensen --- Technical University of Denmark – National Institute of Aquatic Resources (DTU Aqua), Denmark TP Fairweather --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa P Kainge --- Ministry of Fisheries and Marine Resources (MFMR), Namibia JN Kathena --- Ministry of Fisheries and Marine Resources (MFMR), Namibia MD Durholtz --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa JE Beyer --- Technical University of Denmark – National Institute of Aquatic Resources (DTU Aqua), Denmark UH Thygesen --- Technical University of Denmark – National Institute of Aquatic Resources (DTU Aqua), DenmarkOptimal and sustainable management of fish resources cannot be ensured without a thorough understanding of the migration patterns and population (demographic stock) structure. Recent studies suggest that these aspects of the economically and ecologically important deepwater hake Merluccius paradoxus are... -
Endometrial cancer with bone marrow metastases: a management dilemma
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Bt Guzha --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa T Adams --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa L Rogers --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa N Mbatani --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa H-t Wu --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, South Africa N Fakie --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, South Africa J Opie --- Division of Haematology Pathology, South Africa La Denny --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South AfricaA case is presented of a 67-year-old woman referred to the authors’ institution with endometrioid endometrial cancer with a leucoerythroblastic blood film and marked thrombocytopenia. On further evaluation, it was confirmed that she had grade 3 endometrial cancer with bone... -
Weight-related quality of life in obese, pregnant women in South Africa
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: MA Tisane --- Department of Obstetrics & Gynaecology, South Africa JL Van der Merwe --- Department of Obstetrics & Gynaecology, South Africa DR Hall --- Department of Obstetrics & Gynaecology, South AfricaObjective: The global obesity pandemic includes pregnant women. Obesity may negatively impact quality of life (QOL). A validated, obesity-specific, QOL assessment tool was used to assess the impact of obesity on five specific domains. -
Outcomes 30 days after ICU admission: the 30DOS study
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Robert Wise --- Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Kim de Vasconcellos --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa David Skinner --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa Reitze Rodseth --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa Dean Gopalan --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa David Muckart --- Discipline of Surgery, South Africa Zohra Banoo --- KwaZulu-Natal Department of Health District, South Africa Tashmin Bisseru --- Paediatrics, South Africa Steve Blakemore --- Aneasthesiology, South Africa Jenine de Meyer --- Inkosi Albert Luthuli Central Hospital, National Health Laboratory Services, South Africa Michael Faurie --- Discipline of Surgery, South Africa Kom Govender --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa Timothy Hardcastle --- Clinical Unit, South Africa Prakash Jeena --- Paediatric Intensive Care Unit, South Africa Nicky Kalafatis --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa Kroshlan Kistan --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa Theroshnie Kisten --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa Carolyn Lee --- Head Clinical Department: Internal Medicine, South Africa Colin Mitchell --- Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Magesvaran Moodley --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa Mary Morgan --- Discipline of Paediatrics, South Africa Arisha Ramkilliwana --- Pietermaritzburg Metropolitan Department of Anaesthetics, South Africa Rajesh Ramjee --- Anaesthesiology, South Africa Darshan Reddy --- Department of Cardiothoracic Surgery, South Africa Afke Robroch --- Wilhemina’s Childrens Hospital, UMC, The Netherlands Shivani Singh --- Discipline of Paediatrics, South Africa Richard von Rahden --- Discipline of Anaesthesiology and Critical Care, School of Clinical Medicine, South Africa Bruce Biccard --- Department of Anaesthesia and Perioperative Medicine, South AfricaBackground: The spectrum of illness and long-term outcome of critically ill patients admitted to intensive care units (ICUs) in South Africa remains largely unknown. -
Comorbidity of Attention Deficit Hyperactive Disorder (ADHD) and major depression in primary school children
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Maria Mokobane --- Department of Behavioural Medicine, South Africa Basil Pillay --- Department of Behavioural Medicine, South Africa Anneke Meyer --- Psychology Department, South AfricaThe study investigated comorbid Attention-Deficit/Hyperactivity Disorder (ADHD) and depression in a sample of rural primary school children in Limpopo Province, South Africa. A total of 320 learners participated in this study of whom 160 learners had teacher and parent identified... -
Diagnostic and mortality outcomes in a cohort of adult meningitis suspects in KwaZulu-Natal
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Onke Nonkala --- Department of Internal Medicine, South Africa Colleen Aldous --- School of Clinical Medicine, South Africa Douglas Wilson --- Department of Internal Medicine, South AfricaBackground: The clinical value of lumbar puncture (LP) in settings with a high human immunodeficiency virus (HIV) prevalence has not been well defined. -
Variation in the daily activity, movement and refugia of Critically Endangered geometric tortoises, Psammobates geometricus, in autumn and spring
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Brian T. Henen --- , , South Africa Ulric P. van Bloemestein --- , , South Africa Margaretha D. Hofmeyr --- , , South Africa Craig A. Weatherby --- , , USATo help assess habitat requirements of Critically Endangered geometric tortoises, we used thread-trailing to measure daily activity, movements and refugia of adult Psammobates geometricus in autumn and spring 2002. We found strong differences between seasons, and effects of weather, individuals... -
Predatory pelagic fishes of the Bijagós Archipelago (Guinea-Bissau) show high overlap in diets dominated by sardinella
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Correia --- Centro de Estudos do Ambiente e do Mar (CESAM), Departamento de Biologia Animal, Portugal JP Granadeiro --- Centro de Estudos do Ambiente e do Mar (CESAM), Departamento de Biologia Animal, Portugal A Regalla --- Instituto da Biodiversidade e das Áreas Protegidas da Guiné-Bissau (IBAP), Guinea-Bissau E Dias --- Instituto da Biodiversidade e das Áreas Protegidas da Guiné-Bissau (IBAP), Guinea-Bissau A Almeida --- Centro de Investigação Pesqueira Aplicada (CIPA), Guinea-Bissau P Catry --- Marine and Environmental Sciences Centre (MARE), PortugalKnowledge of trophic interactions between the key components of marine communities is required to understand food-web dynamics and develop ecosystem-based management approaches. In West Africa, where fisheries sustain the livelihoods of a significant part of the human population, this understanding... -
A first-approximation simple dynamic growth model for forest teak plantations in Gujarat state of India
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Vindhya Prasad Tewari --- Himalayan Forest Research Institute, India Bilas Singh --- Arid Forest Research Institute, IndiaTectona grandis (teak) is one of the most important tropical timber species occurring naturally in India. In India, teak is the single most important commercial timber species. Scientifically sound growth models, based on advanced modelling techniques, are often not available,... -
What should I tell my patient? Disclosure in anaesthesiology: difficulties, requirements, guidelines and suggestions
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: Malcolm de Roubaix --- Centre for Applied Ethics, Department of Philosophy, South AfricaSouth African anaesthesiologists have embraced the requirement for authentic informed consent, but there is no consensus regarding the comprehensiveness and specificity requirements with regard to the information that needs to be supplied to the patient, and upon which decisions will... -
Depression among infertile women in Ogbomosoland
Item type: Journal Article • Journal: South African Family Practice • Authors: SA Oladeji --- Department of Family Medicine, Nigeria AD OlaOlorun --- Department of Family Medicine, NigeriaBackground: Infertility is a major medical condition that affects many married couples globally and it has an immense psycho-social impact on couples, especially in Africa where a high premium is placed on child-bearing. This study therefore determined the prevalence of... -
Food, memory and transnational gastronomic culture amongst Cameroonian migrants in Cape Town, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Henrietta M. Nyamnjoh --- African Centre for Cities, and Environmental and Geographical Science, South AfricaIn the context of accelerated mobility and migration, food forms part of peoples’ historical identity and emotional repertoire. Drawing on ethnographic research amongst Anglophone Cameroonian migrants living in Cape Town, South Africa, this paper explores how Cameroonian migrants maintain their... -
Peatland substrates in northern KwaZulu-Natal: a study of the forming environments, properties and an approach towards classification
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Marvin Gabriel --- Faculty of Life Science, Germany Camelia Toader --- Faculty of Mathematics and Natural Sciences, Germany Franziska Faul --- Faculty of Earth and Environmental Sciences, Germany Niko Roßkopf --- Faculty of Life Science, Germany Piet-Louis Grundling --- Centre for Environmental Management, South Africa Cornelius Wilhelm van Huyssteen --- Department of Soil, Crop, and Climate Sciences, South Africa Jutta Zeitz --- Faculty of Life Science, GermanyPeatlands in South Africa are rare and fulfil important ecological functions but are threatened by degradation. Because of this peatlands have gained increasing attention from scientists during the last two decades. However, knowledge of the peatland substrates and the means... -
War Memories and the Refugees’ Representation in Marie-Thérèse Toyi’s Weep not, Refugee
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Audace Mbonyingingo --- English Department, BurundiDuring the late twentieth century, numerous Great Lakes countries witnessed and experienced massive killings, disappearances, torture and tremendous suffering. Drawing particularly from the tenets of Cathy Caruth (1995, 153), which stipulate that ‘previously forgotten memory traces return and are reworked... -
Soil quality effects on regeneration of annual Medicago pastures in the Swartland of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Pieter A Swanepoel --- Department of Agronomy, South Africa Flackson Tshuma --- Department of Agronomy, South AfricaAnnual medic (Medicago spp.) pastures are widely used as the forage component of crop rotation systems in the Mediterranean region of South Africa. Reliable establishment of medics can be challenging. This may be related to poor soil quality, an inherent... -
Sexing Cape Vulture Gyps coprotheres based on head morphometrics
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Margaret T Hirschauer --- VulPro NPC, Skeerpoort, South Africa Tapiwa Zimunya --- VulPro NPC, Skeerpoort, South Africa Kerri Wolter --- VulPro NPC, Skeerpoort, South Africa Ara Monadjem --- All Out Africa Research Unit, Department of Biological Sciences, SwazilandThe Cape Vulture Gyps coprotheres is considered sexually monomorphic in the literature, but visual differences in head shape between the sexes have been observed. Furthermore, head morphometrics of other Gyps species show statistically significant variation between the sexes. We show... -
Retention of the flight-adapted avian finger-joint complex in the Ostrich helps identify when wings began evolving in dinosaurs
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Joel D Hutson --- Department of Biological Sciences, USA Kelda N Hutson --- Earth Science, USAThe functional anatomies of avian finger joints have never been compared with those of the basal avian Archaeopteryx lithographica or maniraptoran theropod dinosaurs. These startling oversights are due to unfamiliarity of the joints outside of highly specialised studies of bird-wing... -
Phytomass estimation using eMODIS NDVI and ground data in arid rangelands of Morocco
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Hamid Mahyou --- Centre Régional de la Recherche Agronomique d’Oujda, Morocco Bernard Tychon --- Department of Environmental Sciences and Management, Belgium Marie Lang --- Department of Environmental Sciences and Management, Belgium Riad Balaghi --- Centre Régional de la Recherche Agronomique de Meknès, MoroccoThe assessment of rangeland productivity in semi-extensively grazed arid rangelands is a prerequisite for livestock management in relation to sustainable use of pastoral resources. The objective of this study was to assess rangeland productivity based on normalised difference vegetation index... -
The population dynamics of a recently introduced crayfish, Cherax quadricarinatus (von Martens, 1868), in the Sanyati Basin of Lake Kariba, Zimbabwe
Item type: Journal Article • Journal: African Zoology • Authors: Lightone Marufu --- Department of Biological Sciences, Zimbabwe Maxwel Barson --- Department of Biological Sciences, Zimbabwe Portia Chifamba --- Department of Biological Sciences, Zimbabwe Michael Tiki --- Zimbabwe National Parks and Wildlife Authority, Zimbabwe Tamuka Nhiwatiwa --- Department of Biological Sciences, ZimbabweThe redclaw crayfish Cherax quadricarinatus is a recent introduction into Lake Kariba, Zimbabwe where it is rapidly spreading. There are, however, no studies that have investigated the population dynamics and possible ecological impacts of the crayfish in the lake. This... -
A new approach for the mix design of (patch) repair mortars
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Inès L. Tchetgnia Ngassam --- Department of Civil Engineering, South Africa Philemon Arito --- Department of Civil Engineering, South Africa Hans Beushausen --- Department of Civil Engineering, South AfricaThe failure of most repairs in concrete structures is mainly manifested in the form of cracking and/or debonding of the repair layer. These two repair mechanisms could lead to the continuous corrosion of reinforcing steel in concrete. Cracking and debonding... -
Phenotypic characterisation of potato (Solanum tuberosum) genotypes in Uganda
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Prossy Namugga --- African Centre for Crop Improvement, School of Agricultural, Earth and Environmental Sciences, South Africa Julia Sibiya --- African Centre for Crop Improvement, School of Agricultural, Earth and Environmental Sciences, South Africa Rob Melis --- African Centre for Crop Improvement, School of Agricultural, Earth and Environmental Sciences, South Africa Alex Barekye --- Kachwekano Zonal Agricultural Research and Development Institute, UgandaIdentification of genetic variation and interrelationships among germplasm collections is essential for parental selection and trait identification among parents for use in breeding programmes. The aim of this study was to characterise 48 potato genotypes to identify suitable parents for... -
Towards plant-centred methodologies in anthropology
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Diana Gibson --- Department of Anthropology and Sociology, South AfricaThis paper reflects on research on medicinal plants in the Matzikama Local Municipality, Western Cape, in order to elaborate on methodological possibilities and their problematic in such studies. Classical ethnographic research is usually conducted from an anthropocentric viewpoint, but our... -
Increased planting density as a means for improving Pinus elliottii lumber stiffness
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Gideon M Froneman --- Department of Forest and Wood Science, South Africa C Brand Wessels --- Department of Forest and Wood Science, South AfricaFaster growth and reduced harvesting ages are causing a reduction in the stiffness of lumber from South African grown pine plantations. The objective of this study was to determine whether increased planting densities of Pinus elliottii would result in improved... -
Late entry to HIV and AIDS care and treatment, Juba Teaching Hospital, Juba, South Sudan, 2013–2016
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Muki Johnson --- Immunization and Field Epidemiology Training Project, South Sudan Benjamin L Lemi --- Juba Teaching Hospital, South Sudan Hillary L Tonny --- Juba Teaching Hospital, South Sudan Adelina D David --- Juba Teaching Hospital, South Sudan Waqo Boru --- Field Epidemiology and Laboratory Training Program, Kenya James Ransom --- Field Epidemiology and Laboratory Training Program, KenyaLate diagnosis of HIV and enrolment to care are global public health challenges. This study aimed to characterise late HIV diagnoses and initiation of treatment among patients at Juba Teaching Hospital (JTH) in South Sudan. We conducted a retrospective review... -
Human trafficking in the hotel industry in the Netherlands: the fine line between service, responsibility and liability
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Erwin van der Graaf --- Accor Hotels, The NetherlandsHuman trafficking is the fastest growing form of organised crime and the biggest source of income for criminals in Europe. Within the prostitution sector, there is a shift towards less visible forms such as hotel prostitution. About half of all... -
Trauma event autobiographies: An exploratory multiple case study
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Corné Engelbrecht --- Department of Psychology, South Africa Maria Papaikonomou --- Department of Psychology, South AfricaThis multiple case study explored trauma event memories of three individuals to characterise underlying meanings important for their recovery. The three participants were women in the age range of 43 to 54 years old, who shared their own memories of... -
Concurrent tobacco use and risky drinking in South Africa: Results from the South African National Health and Nutrition Examination Survey
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Nancy Phaswana-Mafuya --- Deputy Vice Chancellor Research and Innovation Office, South Africa Karl Peltzer --- Deputy Vice Chancellor Research and Innovation Office, South Africa Supa Pengpid --- ASEAN Institute for Health Development, ThailandThe aim of this study was to examine socio-demographic and psychosocial correlates of concurrent tobacco use and risky drinking. We analysed data from the cross-sectional South African National Health and Nutrition Examination Survey (SANHANES-1) 2011–2012. The sample included 14 764... -
Tiller population dynamics in eight cultivars of elephant grass during undisturbed growth
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: José A Rueda --- Licenciatura en Zootecnia, Mexico Eusebio Ortega-Jiménez --- Colegio de Postgraduados, Mexico Javier F Enríquez-Quiroz --- Campo Experimental “La Posta”, Mexico Rogelio E Palacios-Torres --- Licenciatura en Zootecnia, Mexico Sergio Ramírez-Ordoñes --- Licenciatura en Zootecnia, MexicoThe aim of the study was to assess tiller population dynamics of aerial and basal tillers in eight cultivars of Pennisetum purpureum (Schumach.), syn. Cenchrus purpureus (Schumach.) Morrone, in a warm humid climate in Veracruz, Mexico. This is a pioneer... -
Synchronous oligometastases in cervical cancer: a case report
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: BT Guzha --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa N Ngxola --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa T Adams --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa L Rogers --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa N Mbatani --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South Africa H-T Wu --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, Cape Town, South Africa, N Fakie --- South African Medical Research Council (SAMRC)/University of Cape Town (UCT) Gynaecological Cancer Research Centre, Cape Town, South Africa, V Muzenda --- Department of Radiology, South Africa LA Denny --- Division of Gynaecology Oncology, Department of Obstetrics and Gynaecology, South AfricaIncidence and mortality of cervical cancer in South Africa is still very high and 4-6% of women present with FIGO stage IVB disease. However, the management of oligometastatic cervical cancer is not well decribed in literature. Treatment of stage IVB... -
Radial variation of wood properties in Neolamarckia cadamba trees from an East Java community forest
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Yus Andhini Bhekti Pertiwi --- Faculty of Agriculture, Japan Haruna Aiso --- Faculty of Agriculture, Japan Futoshi Ishiguri --- Faculty of Agriculture, Japan Sri Nugroho Marsoem --- Faculty of Forestry, Indonesia Shinso Yokota --- Faculty of Agriculture, JapanRadial variations in wood properties, cell morphologies and cell proportions were investigated for nine 4-year-old Neolamarckia cadamba trees planted in a community forest in East Java, Indonesia. The relationships between stem diameter and wood properties, cell morphologies or cell proportions... -
Acute respiratory distress syndrome following a biphasic anaphylactic reaction to morphine: a case report and review of the literature
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: KU Tobi --- Department of Surgery and Anaesthesiology, University of Namibia, Namibia G Kirenga --- Department of Anaesthesiology, University of Rwanda, Rwanda S Muhmuza --- Department of Anaesthesiology, King Faisal Hospital, Rwanda P Ruhato --- Department of Anaesthesiology, University of Rwanda, RwandaBackground: Biphasic anaphylactic reaction is a variant of the usual and more commonly seen monophasic anaphylactic reaction. However, recently it has been observed that biphasic anaphylactic reaction may not be as uncommon as previously believed. Furthermore, serious and life-threatening complications... -
Effect of moringa extract on the leaf anatomy and yield potential of tomato infected by Alternaria solani
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Culver Mvumi --- Department of Plant and Soil Science, South Africa Diana Marais --- Department of Plant and Soil Science, South Africa Elizabeth Ngadze --- Department of Crop Science, Zimbabwe Elsa S du Toit --- Department of Plant and Soil Science, South Africa Albert Tsindi --- Faculty of Agriculture, ZimbabweTomato is often exposed to hormones and diseases, among other factors, to which responses in leaf anatomy and yield are observed. This study evaluated responses in the leaf anatomy of Alternaria solani infected (IN) and non-infected (NIN) tomato (Solanum lycopersicum)... -
Social engagement and survival in people aged 50 years and over living with HIV and without HIV in Uganda: a prospective cohort study
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joseph O Mugisha --- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine, Uganda Enid J Schatz --- Department of Health Sciences, USA Christian Hansen --- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine, Uganda Emily Leary --- Biostatistics and Research Design Unit, School of Medicine, USA Joel Negin --- School of Public Health, Australia Paul Kowal --- World Health Organization study on global AGEing and adult health, Switzerland Janet Seeley --- Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine, UgandaThis study examined the association between social engagement and survival in people with or without HIV aged 50 years and over in Uganda. We analysed two waves of a survey from two sites in Uganda to assess predictors of mortality... -
Understanding memorable tourism experiences: A case study
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Miranda Cornelisse --- Tourism, The NetherlandsThe desire for new experiences that are truly authentic has become an important mainstream in the tourism industry. The main goal of this empirical case study was twofold: 1) To determine which concept of authenticity in tourism literature is most... -
Seabird breeding populantions decrease along the arid coastline of South Africa’s Northern Cape province
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Robert JM Crawford --- Branch Oceans and Coasts, Department of Environmental Affairs, South Africa Bruce M Dyer --- Branch Oceans and Coasts, Department of Environmental Affairs, South Africa Louise Geldenhuys --- Northern Cape Department of Environment and Nature Conservation, South Africa W Herman Oosthuizen --- Branch Oceans and Coasts, Department of Environmental Affairs, South Africa Azwianewi B Makhado --- Branch Oceans and Coasts, Department of Environmental Affairs, South AfricaNumbers of eight seabird species that have bred in coastal areas of South Africa’s arid Northern Cape province have all shown substantial decreases since initial estimates of their abundance were made in the latter part of the twentieth century. Likely... -
The energetic significance of communal roosting and insulated roost nests in a small arid-zone passerine
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Nevanya Lubbe --- DST-NRF Centre of Excellence at the FitzPatrick Institute, Department of Zoology and Entomology, South Africa Zenon J Czenze --- School of Biological Sciences, New Zealand Matthew J Noakes --- DST-NRF Centre of Excellence at the FitzPatrick Institute, Department of Zoology and Entomology, South Africa Andrew E McKechnie --- DST-NRF Centre of Excellence at the FitzPatrick Institute, Department of Zoology and Entomology, South AfricaSmall endotherms have evolved behavioural mechanisms for reducing rest-phase energy expenditure, which reduce the likelihood of mismatches between energy supply and demand during periods of cold weather and/or food scarcity. Although the energetic consequences of communal roosting and the use... -
A comparative analysis of the morphology and nutritive value of five South African native grass species grown under controlled conditions
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Khuliso E Ravhuhali --- Department of Animal Science, School of Agricultural Sciences, Faculty of Natural and Agricultural Sciences, South Africa Victor Mlambo --- School of Agricultural Sciences, Faculty of Agriculture and Natural Sciences, South Africa Tefera S Beyene --- Department of Livestock and Pasture Science, South Africa Lobina G Palamuleni --- Department of Geography and Remote Sensing, School of Environmental and Health Sciences, Faculty of Agriculture, South AfricaThe comparative growth habits and nutritive value of native grass species of South Africa are largely unknown despite the utility of this information in rangeland restoration efforts. This article presents a comparative characterisation of the morphology, chemical composition and in... -
HIV prevalence and related behaviours of older people in Botswana — secondary analysis of the Botswana AIDS Impact Survey (BAIS) IV
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Kabo Matlho --- School of Public Health, Australia Madeleine Randell --- School of Public Health, Australia Refelwetswe Lebelonyane --- Ministry of Health, Botswana Joseph Kefas --- National AIDS Coordinating Agency, Botswana Tim Driscoll --- School of Public Health, Australia Joel Negin --- School of Public Health, AustraliaThe focus of HIV interventions in Botswana, a country with the second highest prevalence of HIV in the world, remains targeted at those aged 15–49 years despite a growing cohort of older people living with the disease — driven largely... -
Impact of health, water and sanitation as key drivers of economic progress in Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Obaka Abel Inabo --- Department of Economics, Nigeria Noman Arshed --- Department of Economics, PakistanThis study examined the role of quality of health, water and sanitation as key drivers of economic progress, with a focus on Nigeria from 1990 to 2015. The indicators considered were economic progress (GDP per capita), health (infant mortality rate),... -
Bathymetry, substrate and fishing areas of Southeast Atlantic high-seas seamounts
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: OA Bergstad --- Institute of Marine Research (IMR), Norway ÅS Høines --- Institute of Marine Research (IMR), Norway R Sarralde --- Instituto Espanol de Oceanografia, Centro Oceanografico de Canarias, Spain G Campanis --- South East Atlantic Fisheries Organisation (SEAFO), Namibia M Gil --- Departamento de Ecología y Biología Animal, Edificio de Ciencias Experimentales, Spain F Ramil --- Departamento de Ecología y Biología Animal, Edificio de Ciencias Experimentales, Spain E Maletzky --- Ministry of Fisheries and Marine Resources, Namibia E Mostarda --- Food and Agriculture Organization of the United Nations (FAO), Italy L Singh --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa MA António --- Secretary of State of Affairs, Ministry of Agriculture, Rural Development and Fisheries, AngolaMost of the Southeast Atlantic Ocean is abyssal, and global bathymetries suggest that only ∼3.2% of the areas beyond national jurisdiction (ABNJ; also known as the high seas, as defined in the United Nations Convention on the Law of the... -
Morphological differentiation among populations of Sarotherodon melanotheron melanotheron Rüppell 1852 across the West African Lagoon systems (Benin, Cameroon, Nigeria, Togo)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MO Popoola --- Department of Zoology, Nigeria FDB Schedel --- SNSB-Bavarian State Collection Zoology, Germany MA Akintoye --- Department of Zoology, NigeriaMorphometric variation among populations of Sarotherodon melanotheron melanotheron across its natural range (Mahin, epe, Lekki, Apese, Kuramo, Lagos, Iyagbe, Ologe, Badagry, Yewa – Nigeria; Be Lagoon – Togo; Idenau – Cameroon, Aheme – Benin; Portonovo – Benin) were studied to... -
Double vision and suspended conversations: reconstituting landscapes of memory in Port Elizabeth, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Naomi Roux --- Department of Architecture and Planning, South AfricaBetween 1968 and 1975, the neighbourhood of South End in Port Elizabeth underwent a traumatic process of destruction as its residents were forcibly removed under the Group Areas Act and the suburb was razed. This paper traces some of the... -
Morphological and molecular characterization of Glossidium pedatum Looss, 1899 and Orientocreadium batrachoides Tubangui, 1931 from sharptooth catfish, Clarias gariepinus (Burchell, 1822)
Item type: Journal Article • Journal: African Zoology • Authors: José Chissiua Dumbo --- Department of Zoology, South Africa Quinton Marco Dos Santos --- Department of Zoology, South Africa Annemariè Avenant-Oldewage --- Department of Zoology, South AfricaThe superfamily Plagiorchioidea has a considerable number of genera and species with great uncertainty of their phylogenetic position. The objectives of the current study were to specifically describe the morphology and determine for the first time the phylogenetic position of... -
The Effect of Provenance, Plant Spacing and Cutting Interval on Leaf Biomass Yield of Moringa Oleifera Lam.
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: C. T. Gadzirayi --- Bindura University of Science Education, Zimbabwe F. Kubiku --- Bindura University of Science Education, Zimbabwe J. Mupangwa --- University of Fort Hare, South Africa B. Masamha --- Bindura University of Science Education, Zimbabwe L. Mujuru --- Bindura University of Science Education, ZimbabweTwo provenances of Moringa oleifera Lam., Malawi and Mutoko, were evaluated to determine the effect of plant spacing and cutting interval on the leaf biomass yield for fodder production. A split-split plot experimental design was set up with provenance as... -
Determination of Factors Influencing Cultivation and Utilisation of Pumpkins Among Smallholders in Kakamega and Nyeri Counties, Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: J.K. Kiramana --- Chuka University, Kenya D.K. Isutsa --- Egerton University, KenyaPumpkin is becoming an important fruit-vegetable, although its potential remains unexploited in Kenya. This study aimed at enhancing conservation, preservation and production of naturalized pumpkins through the cataloguing of accessions and documentation of indigenous traditional knowledge influencing cultivation and utilization... -
Genetic diversity of endangered sandalwood (Osyris lanceolata) populations in Kenya using ISSR molecular markers
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: KP Andiego --- Department of Forestry and Wood Science, Kenya OG Dangasuk --- Department of Biological Sciences, Kenya DW Odee --- Biotechnology Laboratory, Kenya FS Omondi --- Biotechnology Laboratory, Kenya DF Otieno --- Department of Biological Sciences, Kenya BK Balozi --- Department of Forestry and Wood Science, KenyaOsyris lanceolata is an evergreen, drought tolerant tropical African tree species belonging to the family Santalaceae. It is endangered, owing to overexploitation for its essential oil used in cosmetics and pharmaceutical industries. The study aimed at determining: (1) the genetic... -
Acceptability of a moringa-added complementary soft porridge to caregivers in Hammanskraal, Gauteng province and Lebowakgomo, Limpopo province, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Sithandiwe Ntila --- School of Agricultural, Earth and Environmental Sciences, South Africa Ashwell R. Ndhlala --- Agricultural Research Council, South Africa Unathi Kolanisi --- Department of Consumer Science, South Africa Hafiz Abdelgadir --- Agricultural Research Council, South Africa Muthulisi Siwela --- School of Agricultural, Earth and Environmental Sciences, South AfricaObjectives: This study determined caregivers’ (mothers’) acceptability and perceptions of a soft, white maize porridge (traditional complementary food (TCF)) that was modified by substituting maize meal with Moringa oleifera Lam. leaf powder at different levels, 1%, 2% and 3% weight... -
Discrimination of the phenotypic sardine Sardina pilchardus stocks off the Moroccan Atlantic coast using a morphometric analysis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Mounir --- Biodiversity and Dynamics of Ecosystems Laboratory, Department of Biology, Faculty of Sciences, Morocco A Ewague --- Biodiversity and Dynamics of Ecosystems Laboratory, Department of Biology, Faculty of Sciences, Morocco M Znari --- Biodiversity and Dynamics of Ecosystems Laboratory, Department of Biology, Faculty of Sciences, Morocco H Elmghazli --- Biodiversity and Dynamics of Ecosystems Laboratory, Department of Biology, Faculty of Sciences, MoroccoMorphometric variation can be very useful for discriminating ‘phenotypic stocks’ as groups with similar life-history traits. Such groups are of great importance for accurate population-dynamics modelling for purposes of fishery stock assessment and management, independent of their genetic differences or... -
The subtropical–temperate transition along the east coast of South Africa shapes the thermal physiology of the truncated mangrove snail Cerithidea decollata (Gastropoda: Caenogastropoda, Potamididae)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AS Nonyukela --- Department of Zoology and Entomology, South Africa S Baldanzi --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa LU Vumazonke --- Department of Zoology and Entomology, South AfricaThe east and south coasts of South Africa are characterised by a transition from subtropical to warm-temperate conditions. This transition in environmental temperatures may shape the physiological tolerance of ectothermic species inhabiting harsh environments, such as the intertidal zone. A... -
Dynamics of water exchange and salt flux in the Macuse Estuary, central Mozambique, southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LLAJ Miguel --- Post-Graduate Program in Geology (PPGl), Brazil JWA Castro --- Post-Graduate Program in Geology (PPGl), Brazil SFA Machava --- Department of Oceanography, MozambiqueStudies of water-particle flow dynamics in shallow estuarine systems show that tidal currents control water exchange, salt flux and residence time. We used the 3D Estuary, Lake and Coastal Ocean Model (ELCOM) to estimate the dynamics of tidal currents, salt... -
Growth and mortality parameters of the black-chinned tilapia Sarotherodon melanotheron melanotheron (Pisces: Cichlidae) in a small lagoon in the Central Region of Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GA Tibu --- Department of Fisheries and Aquatic Sciences, Ghana DW Aheto --- Department of Fisheries and Aquatic Sciences, Ghana J Blay --- Department of Fisheries and Aquatic Sciences, GhanaThis study quantified growth, mortality, and exploitation rate of the black-chinned tilapia (Sarotherodon melanotheron melanotheron) population in Etsir Lagoon, a small brackish waterbody at Abandze (5°11′ N, 1°5′ W) in the Central Region of Ghana for management of the stock... -
Geographic variation in West African Agama picticauda: insights from genetics, morphology and ecology
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Sneha Krishnan --- , USA 80526, 4257858934 Caleb Ofori-Boateng --- , , Ghana Matthew K Fujita --- , , USA Adam D Leaché --- , USAWest Africa is a region characterised by high species diversity and endemism, making it an ideal region to study the evolution of genetic and phenotypic differentiation. Species in this region often vary in morphology and genetics; however, the specific drivers... -
Effect of degree and duration of water saturation on iron, manganese and exchangeable cations in wetland soils of Maputaland, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Brenton Mabuza --- Soil, Crop and Climate Sciences, South Africa Cornelius W van Huyssteen --- Soil, Crop and Climate Sciences, South AfricaSoils of the Maputaland Coastal Plain are naturally grey, do not contain any redoximorphic features, and are therefore problematic to interpret during wetland delineation. This study was consequently initiated to determine if these soils were able to reduce in a... -
Cranial variation in common dolphins Delphinus spp. off South Africa, with the inclusion of information from the holotype of Delphinus capensis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SG Ngqulana --- Department of Zoology, South Africa S Plön --- Earth Stewardship Science Research Institute – Africa Earth Observatory Network, South Africa A Galatius --- Department of Bioscience, Denmark P Pistorius --- Department of Zoology, South Africa GJG Hofmeyr --- Department of Zoology, South AfricaThe common dolphins (genus Delphinus) are widely distributed in all temperate and tropical oceans. Over this wide geographical distribution they show considerable range in morphological variation, which has led to descriptions of several species in the genus. Until recently, only... -
Age, growth and per-recruit stock assessment of southern mullet Chelon richardsonii in Saldanha Bay and Langebaan Lagoon, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Horton --- Department of Biological Sciences, South Africa D Parker --- Department of Biological Sciences, South Africa H Winker --- Branch: Fisheries Management, Department of Agriculture, South Africa SJ Lamberth --- Branch: Fisheries Management, Department of Agriculture, South Africa K Hutchings --- Anchor Environmental Consultants, South Africa SE Kerwath --- Department of Biological Sciences, South AfricaThe southern mullet Chelon richardsonii (Mugilidae) is the main target species of the inshore net fishery (gillnet and beach-seine) on the west coast of South Africa. The stock has displayed symptoms of overfishing, with a 28% reduction in the standardised... -
Comparative trophic ecology of Cape anchovy Engraulis encrasicolus and Natal anchovy Stolephorus holodon off South Africa’s east coast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Horton --- Department of Biological Sciences, South Africa CD van der Lingen --- Department of Biological Sciences, South AfricaThe distributional ranges of Cape anchovy Engraulis encrasicolus and Natal anchovy Stolephorus holodon presently overlap at their eastern and western extremes, respectively, off South Africa’s east coast. These species might become more strongly sympatric as a consequence of changed distributions... -
Impacts of a concentrated solar power trough facility on birds and other wildlife in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Corey Jeal --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa Vonica Perold --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa Samantha Ralston-Paton --- BirdLife South Africa, South Africa Peter G Ryan --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South AfricaThis study assesses bird and wildlife mortality and changes in bird species communities at a 50 MW utility-scale concentrated solar power parabolic trough facility in South Africa. The facility was searched for evidence of large vertebrate mortalities over three months... -
Age classes of developing Red-necked Spurfowl Pternistis afer based on plumage, morphology and behaviour
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Johann H van Niekerk --- Department of Environmental Sciences, College of Agriculture and Environmental Sciences, South AfricaThis paper describes the plumage and morphology development of 11 age classes of Red-necked Spurfowl Pternistis afer to assist with field observations. Sixteen spurfowl were marked with coloured leg rings in the Cannon Rocks Holiday Resort, Eastern Cape, South Africa... -
Spatial distribution and breeding territories of Bonelli’s Eagle Aquila fasciata in the western Anti-Atlas Mountains, Morocco
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ali Irizi --- Département de Zoologie et Ecologie Animale, Institut Scientifique, Morocco Mohamed Aourir --- Laboratory « Biodiversité et fonctionnement des écosystèmes », Department of Biology, Faculty of Sciences, Morocco Mohammed Znari --- Laboratoire « Biodiversité et Dynamique des Ecosystèmes», Faculté des Sciences – Semlalia, Morocco Mohamed Aziz El Agbani --- Département de Zoologie et Ecologie Animale, Institut Scientifique, Morocco Abdeljebbar Qninba --- Département de Zoologie et Ecologie Animale, Institut Scientifique, MoroccoThe North African population of Bonelli’s Eagle Aquila fasciata (Vieillot, 1822) is limited to the south by the northern fringe of the Sahara Desert. This study provides the first data on the spatial distribution and density of breeding Bonelli’s Eagles... -
Hospitalisation of Type 2 diabetes mellitus patients with and without major depressive disorder in a private managed healthcare organisation
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: L Naidoo --- Department of Pharmacy and Pharmacology, South Africa N Butkow --- Department of Pharmacy and Pharmacology, South Africa P Barnard-Ashton --- Department of Pharmacy and Pharmacology, South Africa E Libhaber --- Department of Cardiology, School of Clinical Medicine, South AfricaBackground: The relationship between Type 2 diabetes mellitus (T2DM) and associated co-morbidities, particularly major depressive disorder (MDD), is poorly acknowledged in chronic disease management practices in South Africa. Managed healthcare costs and hospitalisation rates may be influenced by the discrete... -
Mc1r genotype and plumage colouration in highly polymorphic jackal buzzards, Buteo rufofuscus
Item type: Journal Article • Journal: African Zoology • Authors: Sophia Bam --- School of Life Sciences, South Africa Lorinda Hart --- School of Life Sciences, South Africa Sandi Willows-Munro --- School of Life Sciences, South AfricaEvolution is driven by natural selection acting on variable phenotypic traits. Understanding the molecular basis of those traits is crucial for elucidating the mechanisms of natural selection. The southern African jackal buzzard (Buteo rufofuscus) displays extreme plumage colour polymorphism, with... -
Life history, distribution and seasonal movements of a threatened South African endemic seabream, Chrysoblephus gibbiceps
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CG Attwood --- Department of Biological Sciences and the Marine Research Institute, South Africa ME Dawson --- Department of Biological Sciences and the Marine Research Institute, South Africa SE Kerwath --- Department of Biological Sciences and the Marine Research Institute, South Africa C Wilke --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South AfricaThe red stumpnose Chrysoblephus gibbiceps (Sparidae) is a South African endemic seabream that has been severely depleted by fishing. A total of 678 C. gibbiceps were sampled by line and trawl fishing for a study of their morphology, age, growth,... -
Hydropedological grouping of South African soil forms
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Johan J van Tol --- Department of Soil, Crop and Climate Sciences, South Africa Pieter AL Le Roux --- Institute for Groundwater Studies, University of the Free State, South AfricaThe science of hydropedology has progressed significantly in the past two decades, especially with regards to the interpretation of soil morphology and relating these interpretations to the hydrological behaviour of horizons, profiles, hillslopes and catchments. Soil classification is pivotal to... -
Diversity analysis of mungbean (Vigna radiata) germplasm using a semi-graphical technique
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Hafiz Basheer Ahmad --- Oilseed Research Institute, Ayub Agricultural Research Institute, Pakistan Salsabeel Rauf --- Oilseed Research Institute, Ayub Agricultural Research Institute, Pakistan Waqas Shafqat Chattha --- Department of Plant Breeding and Genetics, Pakistan Busharat Hussain --- Pulses Research Institute, Ayub Agricultural Research Institute, Pakistan Iqtidar Hussain --- Department of Agronomy, Pakistan Irfan Rasool --- Pulses Research Institute, Ayub Agricultural Research Institute, PakistanGrain legumes such as mungbean are often co-cultivated with cereals. The genetic diversity among 84 mungbean genotypes was studied using metroglyph and principal component analysis. Data were recorded for days to flowering and maturity, plant height, pods per plant, clusters... -
Ecology, conservation, and phylogenetic position of the Madagascar Jacana Actophilornis albinucha
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Josephine D’Urban Jackson --- Milner Centre for Evolution, Department of Biology and Biochemistry, United Kingdom Sama Zefania --- Institut d’Enseignement Supérieur de Menabe, Madagascar Sebastien Moehy --- Institut d’Enseignement Supérieur de Menabe, Madagascar Andrew J Bamford --- Wildfowl and Wetlands Trust, United Kingdom Michael W Bruford --- Organisms and Environment Division, School of Biosciences, United Kingdom Tamás Székely --- Milner Centre for Evolution, Department of Biology and Biochemistry, United KingdomThe Madagascar Jacana Actophilornis albinucha (Jacanidae) is an endemic shorebird found in the threatened wetlands of western Madagascar. This species is presumed to exhibit classical polyandry; however, few data are available to support that assumption. More generally, a lack of... -
Breeding ecology of the Cream-coloured Courser in Cape Verde
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Romy Rice --- Department of Evolutionary Zoology and Human Biology, Hungary José O Valdebenito --- Milner Centre for Evolution, United Kingdom Meinolf Ottensmann --- Department of Animal Behaviour, Germany Noémie Engel --- Department of Evolutionary Zoology and Human Biology, Hungary Andreia Adrião --- Maio Biodiversity Foundation, Republic of Cape Verde Tamás Székely --- Department of Evolutionary Zoology and Human Biology, HungaryThe Cream-coloured Courser Cursorius cursor exsul is a data-deficient shorebird distributed across Eurasia and Africa. The subspecies exsul is endemic to the Cape Verde archipelago. In contrast with their mainland breeding sites, where coursers appear to be nomadic and rare... -
Could drought constrain woody encroachers in savannas?
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Madelon F Case --- , United States Benjamin J Wigley --- , India Corli Wigley-Coetsee --- , South Africa A Carla Staver --- , United StatesDroughts are expected to become more frequent and severe, due to climate change, with uncertain consequences for savanna vegetation. Drought-driven tree mortality has been observed in some savannas, but little is known about how tolerant savanna trees are to drought,... -
Grass community responses to drought in an African savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C Wigley-Coetsee --- , South Africa AC Staver --- , United StatesDrought is often discussed as a major perturbation in savanna ecosystems, associated with lasting shifts in savanna structure and functioning. However, historically, droughts have occurred frequently in southern African savannas, suggesting that plants might benefit from being resilient to drought... -
Effect of drought on communal livestock farmers in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S Vetter --- , South Africa VL Goodall --- , South Africa R Alcock --- , South AfricaDespite the size of the informal small-scale farming sector and its livestock holdings in South Africa, there has been little detailed work to assess how livestock populations are affected by drought. South Africa experienced a major drought in 2015–2016. We... -
Hydropedology in South Africa: Advances, applications and research opportunities
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Johan van Tol --- Department of Soil, Crop and Climate Sciences, South AfricaThe need to characterise and quantify hydrological processes in order to manage scarce water resources led to significant progress in the field of hydropedology in South Africa during the past decade. The adoption of hydropedological research by industry and government... -
Living excluded from the world: essentialism in development discourse and its percolation into Santomean self-perceptions
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Nicola Soekoe --- , South AfricaUsing an analysis of development discourse in and about São Tomé and Príncipe (STP), this article aims to trace the relationship between sociocultural constructions of difference and socio-economic structures of exclusion in the global development project. Using ethnographic data from... -
Acute toxicity and ethological responses in African catfish Clarias gariepinus juveniles to the herbicide, Ronstar®
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: NS Oluah --- , Nigeria BO Mgbenka --- , NigeriaThe toxicity of the herbicide Ronstar® to Clarias gariepinus and the behavioural responses of individual fish were studied in a static renewal bioassay system. One hundred and eighty juveniles of C. gariepinus (mean weight 58.86 ± 2.46 g and mean... -
The effect of cadmium toxicity on Oreochromis niloticus and human health
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: K Abougabal --- , Egypt WA Moselhy --- , Egypt FMM Korni --- , EgyptCadmium levels below permissible limits can be toxic, affecting the health of exposed aquatic organisms and ultimately human health. Although cause and effect links between aquatic organisms and human health have not been elicidated, this study evaluated the effect of... -
Summarising biometrics from the SAFRING database for southern African birds
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sanjo Rose --- , South Africa Robert L Thomson --- , South Africa Hans-Dieter Oschadleus --- , South Africa Alan TK Lee --- , South AfricaBiometrics form a key characteristic of a species. Here, we provide a summary of biometrics held by the South African Bird Ringing Scheme (SAFRING), which was initiated in 1948, including measures of mass and lengths of the tarsus, head, culmen,... -
Distribution and abundance patterns of two parapagurid hermit crabs (Crustacea: Decapoda: Anomura) along the west and south coasts of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AG Wright --- , South Africa CL Griffiths --- , South Africa TP Fairweather --- , South AfricaA series of over 6 000 research-trawl samples collected along the west and south coasts of South Africa between 1987 and 2014 were analysed for the presence and biomass of two parapagurid hermit crabs, Sympagurus dimorphus and Parapagurus bouvieri. The... -
Kissing cousins: a review of the African genus Limnophis Günther, 1865 (Colubridae: Natricinae), with the description of a new species from north-eastern Angola
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Werner Conradie --- Port Elizabeth Museum (Bayworld), South Africa V Deepak --- Department of Life Sciences, The Natural History Museum, United Kingdom Chad Keates --- National Geographic Okavango Wilderness Project, South Africa David J Gower --- Department of Life Sciences, The Natural History Museum, United KingdomThe African natricine genus Limnophis is represented by two species: Limnophis bicolor Günther, 1865 and Limnophis bangweolicus (Mertens, 1936). They are stout-bodied, semi-aquatic snakes that mostly feed on fish and amphibians, and occur from Botswana and Namibia in the south... -
Making a difference and earning a living: Healthcare professionals’ perspectives on working with persons with special healthcare needs
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Victoria Cutts --- , South Africa Henry D. Mason --- , South Africa Vikki Botes --- , South AfricaThis qualitative study explored six (female = 5) healthcare professionals’ motivation to work with persons with special healthcare needs. Thematic analysis revealed three themes; namely making a difference in people’s lives, personal life stories, and extrinsic motivation. The findings suggest... -
Pre-displacement stressors, psychological morbidity, and PTSD symptoms among displaced women by Boko-Haram in North-East Nigeria: The buffering roles of psychological capital
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Erhabor S. Idemudia --- , South Africa Babatola D. Olawa --- , South Africa Gail E. Wyatt --- , USA Norweeta Milburn --- , USAWe utilised a cross-sectional survey design to examine the moderating roles of dimensional psychological capital (PsyCap) and pre-displacement stressors on the relationship between psychological morbidity and severity of PTSD symptoms among internally displaced (IDP) women from terrorist activity. Participants were... -
Describing sexual dimorphism and fine scale spatial distributions in the Drab Thick-tail Scorpion, Parabuthus planicauda
Item type: Journal Article • Journal: African Zoology • Authors: Jacobus H Visser --- , South Africa Sjirk Geerts --- , South AfricaSouthern Africa contains a diverse and endemic scorpion fauna, but with biological aspects remaining largely unexplored for this group. In order to gain biological insights into an understudied scorpion species, the current study investigates fine-scale spatial distributions and sexual dimorphism... -
Belonging, Memory and Subaltern Voices: Reflecting on Sindiwe Magona’s To my Children’s Children
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Puleng Segalo --- , South AfricaFor many black people, the act of writing and expressing one’s thoughts was an exercise of resistance and defiance, one that often meant risking losing one’s freedom or one’s life. Sindiwe Magona’s works challenge the commonly held assumption that writing... -
Parasitic infections and environmental influences on verbal memory and learning potential of isiZulu speaking pre-school children
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xolisile I. Mazibuko --- , South Africa Moses J. Chimbari --- , South AfricaThis study aimed to explore the effects of parasitic infections, demographic, and contextual factors on verbal memory and learning potential. Applying a cross sectional, experimental, and comparative design, we sampled 112 black pre-school children from a historically poor rural South... -
Morpho-agronomical characterisation of local and international sweetpotato germplasm from the South African collection
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sonia IM Naidoo --- , South Africa Sunette M Laurie --- , South Africa Hussein Shimelis --- , South Africa Mark D Laing --- , South AfricaConsiderable genetic diversity is present amongst the sweet potato (Ipomoea batatas (L.) Lam.) accessions that can be selected for breeding. The Agricultural Research Council of South Africa maintains 360 sweetpotato accessions that were bred locally, and introductions from various regions... -
Maximal and singular operators in the local “complementary” generalized variable exponent Morrey spaces on unbounded sets
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Canay Aykol --- , Turkey Xayyam A. Badalov --- , Azerbaijan Javanshir J. Hasanov --- , AzerbaijanIn this paper we consider local “complementary” generalized Morrey spaces with variable exponent p(x) and a general function ω(r) defining a Morrey-type norm. We prove the boundedness of the Hardy-Littlewood maximal operator and Calderón-Zygmund singular operators with standard kernel in... -
Seasonal habitat utilisation and morphological characteristics of Chamaeleo dilepis on Telperion Nature Reserve, Mpumalanga, South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Trevor L O’Donoghue --- Applied Behavioural Ecology and Ecosystem Research Unit, Department of Environmental Sciences, University of South Africa, South Africa Kerry Slater --- Applied Behavioural Ecology and Ecosystem Research Unit, Department of Environmental Sciences, University of South Africa, South Africa Leslie R Brown --- Applied Behavioural Ecology and Ecosystem Research Unit, Department of Environmental Sciences, University of South Africa, South AfricaLimited information on the habitat utilisation and seasonal activity of flap-necked chameleons (Chamaeleo dilepis) is available. We investigated habitat utilisation, seasonal distribution, and sexual dimorphism of C. dilepis on Telperion Nature Reserve (a privately protected natural area) in South Africa... -
Assessment of genetic diversity in sorghum germplasm using agro-morphological traits
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Thulo Sejake --- , South Africa Nemera Shargie --- , South Africa Riann Christian --- , South Africa Toi Tsilo --- , South AfricaSorghum is one of the most important cereal crops grown in arid/semi-arid regions of the world. Despite its importance, sorghum production and productivity are constrained by the use of low yielding cultivars, which are susceptible to biotic and abiotic stresses... -
Prevalence and clinical risk factors for morphometric vertebral fractures in older subjects in KwaZulu-Natal
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: M Esaadi --- , South Africa F Paruk --- , South Africa B Cassim --- , South Africa -
Assessment of subsurface riverbed clogging by fine sediments in a semi-arid catchment of north-western Algeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AM Bendaoud --- , Algeria KA Haddou --- , Algeria AM Taleb --- , Algeria NO Belaidi --- , AlgeriaIn semi-arid regions, natural and anthropogenic disturbances increase the input of fine particles and their subsequent accumulation in streambeds sediment. The clogging of streambeds sediment is caused by the infiltration of fine particles at depth, reducing hydraulic conductivity (K) and... -
The population dynamics of four grass species in relation to burning in the KwaZulu-Natal Drakensberg
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Colin S Everson --- , South Africa Terry M Everson --- , South Africa Craig D Morris --- , South AfricaMarked tillers of Heteropogon contortus, Trachypogon spicatus, Tristachya leucothrix and Harpochloa falx were sampled regularly over a two-year period in Highland Sourveld burnt annually in winter and biennially in spring. Parameters recorded were height of shoot apex, tiller mass, number... -
Young children’s conceptions of morality in a South African context
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Melanie Y. Martin --- , South Africa Nithi Muthukrishna --- , South Africa Gugulethu M. Hlatshwayo --- , South AfricaThe aim of the study was to explore children’s conceptions of morality, specifically the meanings children assigned to situations of morality. The participants were eight to eleven-year-old children (n = 8; female = 5, male = 3) who attended a... -
The changing career of luxury: From moral threat to material well-being
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Christopher J. Berry --- , United KingdomThe elusive nature of luxury and its history have been discussed for thousands of years. Previously known to be for the rich and famous, it could be argued that luxury is a moral threat to society, bringing about social divides... -
Description of two new species of the africana-group of the Genus Gryllotalpa, with a redescription of Gryllotalpa africana Beauvois (Orthoptera: Gryllotalpidae)
Item type: Journal Article • Journal: African Zoology • Authors: Alain Simeu-Noutchom --- , Cameroon Sévilor Kekeunou --- , Cameroon Alain Christel Wandji --- , Cameroon Marcelle Mbadjoun Nzike --- , Cameroon Philène Corinne Aude Um Nyobe --- , Cameroon Alfiery Laurel Djomnang Nkwala --- , Cameroon Linda Gaelle Guiadem Simo --- , CameroonThree species of the africana-group of the Genus Gryllotalpa (Orthoptera: Gryllotalpidae) were recorded from Cameroon during an investigation from March 2016 to March 2018: Gryllotalpa africana Beauvois from Buea and Tombel, and two new species, Gryllotalpa tombelensis Simeu-Noutchom and Kekeunou... -
Stock separation of the shallow-water hake Merluccius capensis in the Benguela ecosystem using otolith shape analysis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ENG Shoopala --- , Namibia MR Wilhelm --- , Namibia SC Paulus --- , NamibiaThe fishing industry is an important economic sector in Namibia and South Africa, with the shallow-water hake Merluccius capensis being an important target species. Recent genetic studies of M. capensis found two stocks in the Benguela Current Large Marine Ecosystem,... -
Virtual identity crisis: The phenomenology of Lockean selfhood in the “Age of Disruption”
Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology • Authors: Michael F. Deckard --- , USA Stephen Williamson --- ,From the end of the seventeenth century to now well into the 21st, John Locke’s theory of personal identity has been foundational in the field of philosophy and psychology. Here we suggest that there are two fundamental threads intertwined in... -
Analysing species site-specific tree growth, mortality and in-growth for miombo woodlands in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: E E Njoghomi --- , Tanzania S Valkonen --- , K Karlsson --- ,The silvicultural information base for the development of management regimes for Tanzanian miombo woodlands is underdeveloped. The limited and fragmented information on tree growth and stand dynamics has constrained the progress of sustainable management in these woodlands. Therefore, this study... -
Correlates of persistent electrocution-related mortality of raptors in Guelmim-Oued Noun province, Morocco
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ali Irizi --- , Morocco Mohamed Aourir --- , Morocco Mohamed Aziz El Agbani --- , Morocco Abdeljebbar Qninba --- , MoroccoElectrocution on poorly designed power pylons is one the most important human-related causes of large bird mortality worldwide. Raptor mortality caused by 22 kV distribution power lines was studied in south-west Morocco. We surveyed 323 pylons (53.5 km) and collected... -
The dysmorphic metatarsal parabola in diabetes—clinical examination and management: a narrative review
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: AT Thompson --- , South Africa B Zipfel --- , South Africa C Aldous --- , South AfricaFoot posture and function is important in diabetes, particularly as neuropathy in diabetes may present with motor in addition to sensory neural deficits. Examination of the anatomical architecture of the foot can inform on its load-bearing and balancing function. An... -
Moringa oleifira noise: Science or quackery and the way forward
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Margaret Huruma Mollel --- , Republic of South Africa Munyaradzi Mujuru --- , Republic of South Africa Vuyo Mjimba --- , Republic of South Africa Nicolas Darangwa --- , Republic of South Africa Richard Nyanzi --- , Republic of South AfricaThe moringa tree is a rising star in South Africa where it is increasingly playing a variety of social and economic roles, especially among the rural poor. Also known as the horseradish tree, moringa has been referred to as the... -
Prevalence and associated factors of loneliness among a national sample of in-school adolescents in Morocco
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Supa Pengpid --- , Thailand Karl Peltzer --- , South AfricaThe goal of the study was to estimate the prevalence and correlates of loneliness among adolescents in Morocco. Data were analysed from 6 745 school adolescents (median age = 15 years) that participated in the 2016 Morocco cross-sectional Global School-Based... -
Psychosocial experiences of infant mortality by mothers in Nigeria
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Foluke Nike Bolu-Steve --- , Nigeria Mary Ogechi Esere --- , NigeriaThis study examined the psychosocial experiences of infant mortality by mothers in Nigeria. Mothers (n = 2 400) from the six geo-political zones in Nigeria participated in the study (age range = 18 to 40 years and above; African Traditional... -
A pilot study on the use of DNA metabarcoding for diet analysis in a montane amphibian population from North Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Ana Pereira --- Universidade do Porto, Portugal Mohamed Amine Samlali --- Cadi Ayyad University, Morocco Abderrahim S’Khifa --- Cadi Ayyad University, Morocco Tahar Slimani --- Cadi Ayyad University, Morocco D James Harris --- Universidade do Porto, PortugalAlthough dietary studies are essential to design effective conservation strategies for amphibians, non-invasive studies using microscopy assessment of faecal material are known to have limitations. We assessed the use of DNA metabarcoding to determine diet in the Moroccan painted frog... -
The distribution of dinoflagellate cyst assemblages in recent sediments of the Oualidia Lagoon, Morocco, with a focus on toxic species
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Chaira --- , Morocco H Rhinane --- , Morocco B Ennaffah --- , Morocco S Maimouni --- , Morocco R Sagou --- , Morocco S Loulad --- , Morocco A BenMhamed --- , Morocco A Agouzouk --- , Morocco S BenBrahim --- , Morocco E Masseret --- , France M Laabir --- , FranceHarmful algal blooms (HABs) are becoming widely distributed and more frequent, threatening socioecosystems and human health. We determined species composition, abundance and spatial distribution of dinoflagellate cysts in the upper sediment of the Oualidia Lagoon located on the Atlantic coast... -
The first report of Naobranchia cygniformis Hesse, 1863 (Copepoda: Lernaeopodidae) off South Africa, with a redescription of the adult female
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SM Dippenaar --- , South Africa MM Sebone --- , South AfricaNaobranchia cygniformis Hesse, 1863 is one of 21 accepted species of the genus Naobranchia, which is distinguished from other genera in the family Lernaeopodidae by the possession of ribbon-like maxillae. The original description of N. cygniformis lacked detail concerning the... -
Reproduction, sexual dimorphism and predation in Mochlus sundevallii in southern Africa (Reptilia: Sauria, Scincidae)
Item type: Journal Article • Journal: African Zoology • Authors: Joaquín Verdú Ricoy --- , South Africa Phomolo Mashinini --- , South Africa Jacqueline Goedhals --- , South Africa Neil Heideman --- , South AfricaThe skink Mochlus sundevallii is widespread throughout the African continent, but no detailed research on its ecology, reproduction and sexual dimorphism patterns has been performed yet. Here we address phenotypic and ecological data of M. sundevallii from the southernmost part... -
Effects of atrazine on the endocrinology and histoarchitecture of the testes in African Catfish, Clarias gariepinus (Burchell, 1822)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PA Opute --- , Nigeria IP Oboh --- , Nigeria JE Asouzu --- , South Africa N Pilani --- , South Africa EF Mbajiorgu --- , South AfricaAquatic ecosystems often receive a wide spectrum of pollutants introduced directly or indirectly. The herbicide atrazine, an endocrine disrupting chemical (EDC), frequently contaminates potable water supplies and aquatic ecosystems. Studies suggest atrazine induced alterations in the neuroendocrine system along the... -
Stock assessment of Nile tilapia Oreochromis niloticus (Linnaeus 1758) in Lake Tana, Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Degsera --- , Ethiopia M Minwyelet --- , Ethiopia TG Yosef --- , EthiopiaNile tilapia Oreochromis niloticus is a commercially important fish species in the Lake Tana fishery and contributes to 65% of the total annual catch. This study estimated the maximum sustainable yield (MSY) and effort at maximum sustainable yield (fMSY) for... -
Cumulative risk and school bullying experiences: Effects of moral disengagement and gender
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Huai-Bin Jiang --- , China Hui-Ling Zhou --- , China Bin Zhang --- , China Han-Yu Liang --- , China Jing-Jing Lian --- , China Yang-Yu Zhang --- , ChinaWe examined the mediation effect of moral disengagement in the association between children’s cumulative risk and high experience of school bullying. Additionally, we determined whether this mediating process was moderated by gender. A sample of 509 Chinese adolescent school students... -
Fire associated exertion myopathy as a mechanism contributing to mortality in Chamaesaura macrolepis (Cope 1862)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: PR Jordaan --- Scientific Technician, JCA Steyl --- University of Pretoria,Following a fire event, an abnormally high number of Chamaesaura macrolepis (Cope 1862) road mortalities were observed on two sections of tar road south of Maputo Special Reserve, Maputo Province, Mozambique. Although most specimens were driven over by vehicles, three... -
A can of worms: Identification issues and morphological conservatism in a large sample of African Green and Bush Snakes (Colubridae: Philothamnus) from Minziro Forest, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Tejs Gørgens Nielsen --- Globe Institute, University of Copenhagen, Denmark Sofie Holdflod Nielsen --- Globe Institute, University of Copenhagen, Denmark Peter Gravlund --- Museum of Eastern Zealand, Denmark David Moyer --- The Field Museum, Illinois, USA and Iringa Anders Galatius --- Aarhus University, Denmark Morten E Allentoft --- Globe Institute, University of Copenhagen, DenmarkThe African green snakes of the genus Philothamnus include c. 21 recognised species distributed across sub-Saharan Africa. Many of the species exhibit high morphological conservatism, exist sympatrically, and can have high population densities. This is presumably the reason why the... -
Beach profiling and ghost crab densities on a hawksbill turtle nesting beach in the Seychelles
Item type: Journal Article • Journal: African Zoology • Authors: Julie A Gane --- , South Africa Colleen T Downs --- , South Africa Benjamin Harris --- , South Africa Mark Brown --- , South AfricaIncreasing beach sediment loss from erosion and high levels of crab Ocypode spp. predation are threatening turtle nests and nesting habitat. The 900 m long beach on Cousine Island, Seychelles, supports a nesting population of approximately 70–130 hawksbill turtle Eretmochelys... -
Timing, duration and symmetry of moult in Cape Gannets
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Oluwadunsin E Adekola --- , South Africa Robert JM Crawford --- , South Africa Bruce M Dyer --- , South Africa Azwianewi B Makhado --- , South Africa Leshia Upfold --- , South Africa Peter G Ryan --- , South AfricaLittle has been reported on moult in sulids, including gannets. The Cape Gannet Morus capensis is an endangered seabird endemic to southern Africa. We describe the timing, duration, symmetry and sequence of flight feather moult in Cape Gannets from two... -
Profile of mothers whose children are treated for malnutrition at a rural district hospital in the North West province, South Africa
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Kebogile Mokwena --- , Jim Kachabe --- , -
Fatal chytridiomycosis in the Moroccan midwife toad Alytes maurus and potential distribution of Batrachochytrium dendrobatidis across Morocco
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Barbora Thumsová --- Museo Nacional de Ciencias Naturales-CSIC, Spain David Donaire-Barroso --- Personal residence, Spain El Hassan El Mouden --- Cadi Ayyad University, Morocco Jaime Bosch --- Museo Nacional de Ciencias Naturales-CSIC, SpainMultiple threats, including emerging infectious diseases, are contributing to the extinction of amphibians worldwide. One of the most devastating diseases is the fatal amphibian skin disease chytridiomycosis caused by the fungus Batrachochytrium dendrobatidis (Bd). The presence of Bd in North... -
Convergence and vicariance: speciation of chameleons in the Cape Fold Mountains, South Africa, and the description of three new species of Bradypodion Fitzinger, 1843
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Krystal A Tolley --- South African National Biodiversity Institute, South Africa Colin R Tilbury --- University of Stellenbosch, South Africa Marius Burger --- North-West University, South AfricaThe mechanisms that underpin ecological speciation, morphological convergence and the evolution of ecological morphotypes (ecomorphs) in squamates have allowed for a better appreciation of the speciation process in chameleons. In particular, attention has been drawn to several populations of chameleons... -
Trends in the admission of raptors to the Moholoholo Wildlife Rehabilitation Centre, Limpopo province, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: N Mbali Mashele --- , South Africa Lindy J Thompson --- , South Africa Colleen T Downs --- , South AfricaRaptors have crucial functions, both ecologically and as environmental indicators. Currently, many raptor species worldwide are threatened, and the potential loss of functional groups will yield dire consequences. We identified the trends and causes of raptor admissions to the Moholoholo... -
Variation of the relationships between lengths and weights applied to 123 fish species observed at Réunion Island (Indian Ocean)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Roos --- , Réunion J Taconet --- , Réunion C Gentil --- , Réunion B Brisset --- , Réunion H Evano --- , Réunion Y Aumond --- , Réunion J Huet --- , Réunion C Lepetit --- , Réunion R Boymond-Morales --- , Réunion T Rungassamy --- , Réunion R Elleboode --- , France K Mahé --- , FranceBody length–weight (L–W) relationships of 123 fish species (122 Actinopterygii and 1 Elasmobranchii) were studied from 10 218 individuals caught around Réunion Island from 2000 to 2021. All species, except for 4 with a very small number of individuals and... -
Spectral classification, mapping and physical habitat implications of a riparian invasion by Tamarix ramosissima Ledeb. in the Touws River, Klein Karoo, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MC Grenfell --- , South Africa TI Dube --- , South AfricaThis paper investigates the invasion of a reach of the Touws River by the deciduous alien tree Tamarix ramosissima Ledeb. (Pink Tamarisk, Saltcedar). The objectives of the paper were to investigate the utility of a delta-normalised difference vegetation index (dNDVI)... -
Unlocking the commercialization potentials of Moringa oleifera production in Southwestern Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: T. O. Ojo --- , Nigeria A. A. Adetoro --- , Pietermaritzburg, South Africa A. A. Ogundeji --- , South Africa J. A. Belle --- , South Africa M. S. C. Ngidi --- , Pietermaritzburg, South AfricaDespite the importance of Moringa oleifera tree for food security at the smallholder farmers’ level, there is no consolidated socioeconomic information about the crop such as its contribution to household food security and income, and its production potential, commercialization and... -
Personhood and Moral Recognition in African Moral Thought
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Motsamai Molefe --- , South AfricaThis article philosophically explicates the relationship between personhood and moral recognition in African ethics. Specifically, it reveals the two distinct forms of moral recognition associated with personhood. It conceptualises moral recognition in terms of recognition and appraisal respect. To clarify... -
The names and naming of gannets comprising the genus Morus (family Sulidae)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adrian Koopman --- , South AfricaThe gannet species found in the northern hemisphere can be fully identified as the Northern Gannet Morus bassanus in the family Sulidae. This full identity reveals four historical themes which intertwine to produce a number of historical and current names... -
On the identity of west Saharan geckos of the Tarentola ephippiata complex (Squamata: Phyllodactylidae), with comments on an extreme case of syntopy with their close relative T. annularis
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Thore Koppetsch --- Zoologisches Forschungsmuseum Alexander Koenig, Germany Wolfgang Böhme --- Zoologisches Forschungsmuseum Alexander Koenig, GermanyTarentola geckos have a widespread geographic distribution and occur both in the Palearctic and Afrotropical realms, as well as the Neotropical region. Particularly, across North Africa phenotypically similar and cryptic species can be found, like the west Saharan members of... -
Digging adaptations evolved independently in two lineages of Psammophiid snake: evidence from cranial morphology
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Nick Sekits --- Whitman College, United States Walter Tunnell-Wilson --- Whitman College, United States Kate Jackson --- Whitman College, United StatesThe Beaked Snakes (Rhamphiophis) are semi-fossorial snakes with reinforced snouts adapted for digging. The Skaapstekers (Psammophylax) are generalist terrestrial snakes. Both belong to the family, Psammophiidae. The Striped Beaked Snake (Kladirostratus acutus) was originally assigned to the genus Rhamphiophis, because... -
Factors affecting eucalypt survival in South African plantation forestry
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ullrich Hechter --- Nelson Mandela University, South Africa Keith Little --- Nelson Mandela University, South Africa Julian Chan --- Institute for Commercial Forestry Research, South Africa Jacob Crous --- , South Africa Dean da Costa --- , South AfricaA review was conducted to highlight the most important factors contributing to increased mortality and decreased growth in eucalypt plantations during re-establishment (0–12 months). Citations were ranked in terms of credibility, with the importance ratings (derived from the literature sources)... -
Testing the efficacy of bat monitoring methods for identification and species surveys in KwaZulu-Natal province, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Alexandra Howard --- University of Pretoria, South Africa Ara Monadjem --- University of Pretoria, South Africa Duncan MacFadyen --- , South Africa Christian T Chimimba --- University of Pretoria, South AfricaMulti-method sampling approaches are becoming increasingly popular for investigating species occurrence at specific sites, as there is a need to accurately monitor species with limited time and resources. In this study, a multi-method comparative approach was used to survey bat... -
Factors associated with single and multiple suicide attempts in adolescent school children in Morocco: A national cross-sectional survey
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- University of the Free State, South Africa Supa Pengpid --- Mahidol University, ThailandThe study aimed to assess factors associated with multiple suicide attempts (MSA) in adolescents with a history of suicide attempts in Morocco. National cross-sectional data from the Global School-Based Student Health Survey (GSHS) in Morocco in 2016 were analysed. Students... -
Compulsory unethical pro-organisational behaviour and employees’ in-role performance: a moderated mediation analysis
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Jing Wang --- Zunyi Medical University, China Gangqiang Wang --- Zunyi Normal University, China Guoqin Liu --- Zunyi Medical University, China Qing Zhou --- Zunyi Medical University, ChinaThis study aimed to identify the influences of compulsory unethical pro-organisational behaviour (CUPB) on employees’ in-role performance and the potential mechanisms between them. Based on the multilevel data from 612 salespeople in China (female = 55.4%; managers = 47.8%; 23–30... -
Beyond HbA1c cardiovascular protection in type 2 diabetes mellitus
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: UG Adamu --- University of the Witwatersrand and the Charlotte Maxeke Johannesburg Academic Hospital, South Africa D Mpanya --- University of the Witwatersrand and the Charlotte Maxeke Johannesburg Academic Hospital, South Africa A Patel --- University of the Witwatersrand and the Charlotte Maxeke Johannesburg Academic Hospital, South Africa N Tsabedze --- University of the Witwatersrand and the Charlotte Maxeke Johannesburg Academic Hospital, South AfricaCardiovascular disease is a significant cause of morbidity and mortality for individuals living with type 2 diabetes mellitus (T2DM). These patients have double the risk of atherosclerotic cardiovascular disease (ASCVD) compared with the general population. Furthermore, approximately a third of... -
Estimates of eligibility for antiretroviral treatment (ART) and projected ART impact on AIDS mortality among South African educators
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Thomas M Rehle --- HSRC's Social Aspects of HIV/AIDS and Health Programme, Olive Shisana --- South African Human Sciences Research Council,The study assessed the proportion of HIV-infected educators that need antiretroviral treatment (ART) according to current criteria, and estimated the impact of ART on AIDS mortality by modelling scenarios with and without access to ART. Specimens for HIV testing were... -
‘Every teacher is a researcher!’: Creating indigenous epistemologies and practices for HIV prevention through values-based action research
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: Lesley Wood [d88e14]Since gender is an undisputed driver of HIV infection, teachers concerned with HIV prevention education should ideally encourage critical awareness of and culturally sensitive practices around gender inequalities. Many interventions and programmes have been developed for teachers to enable them... -
Disclosure of HIV status between parents and children in Uganda in the context of greater access to treatment
Item type: Journal Article • Journal: SAHARA-J: Journal of Social Aspects of HIV/AIDS • Authors: David Kyaddondo [d332e18] Rhoda K. Wanyenze John Kinsman Anita HardonWhile disclosure of HIV sero-status is encouraged in the management of the HIV and AIDS epidemic, it remains a challenge, especially among family members. This article examines the moral dilemmas and pragmatic incentives surrounding disclosure of HIV status in contemporary... -
Morphological variation and geographical distribution in the South African lizards Typhlosaurus caecus (Cuvier 1817) and Typhlosaurus vermis Boulenger 1887 (Scincidae: Acontinae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: MichaelF. Bates --- , South Africa Neil J.L. Heideman --- , South Africa BrianA. Wilson --- Soghne College of Education, South Africa Martin G.J. Hendricks --- University of the Western Cape, South Africa Nulfa Don --- Soghne College of Education, South Africa Carlos Moses --- Soghne College of Education, South AfricaThe most recent evaluation of morphological variation in Typhlosaurus caecus was based on only six specimens, including one from Port Nolloth here referred to T. vermis. We report on morphological variation in 25 T. caecus and 33 T. vermis from... -
New data on the South African acontine skink Typhlosaurus lomii Haacke 1986 (Squamata: Scincidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AaronM. Bauer --- Villanova University, USA Victoria Schneider --- Villanova University, USA Trip Lamb --- East Carolina University, USA PaulE. Moler --- Florida Game and Fresh Water Fish Commission , USA RandallD. Babb --- , USA -
How to make measurements in thermoregulatory studies: the heating debate continues
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Shelley Currin --- University of the Witwatersrand, South Africa Graham John Alexander --- University of the Witwatersrand, South Africa -
A respone to Hertz, Huey and Stevenson
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Graham John Alexander --- University of the Witwatersrand, South Africa Shelley Currin --- University of the Witwatersrand, South Africa -
Comments on the types and type localities of South African reptiles collected by Heinrich Bergius and Ludwig Krebs
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AaronM. Bauer --- Villanova University, USAKarl Heinrich Bergius (1790–1818) and Georg Ludwig Engelhard Krebs (1792–1844) were German apothecaries living in South Africa who collected zoological material, including reptiles, for Martin Hinrich Carl Lichtenstein, director of the Zoological Museum of the Wilhelm-Friedrichs-Universität zu Berlin (ZMB). Although... -
Morphometrics and sexual dimorphism of the hinge‐back tortoises Kinixys erosa and Kinixys homeana (Reptilia: Testudinidae) in southwestern Cameroon
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DwightP. Lawson --- The University of Texas at Arlington, U.S.A.Morphometric data on a series of forest‐dwelling hingeback tortoises, 138 Kinixys erosa and 74 Kinixys homeana, from the Southwest Province of Cameroon, Africa, where they are sympatric, are presented. The two species exhibited opposite trends in sexual size dimorphism. Unique... -
Morphometrics, sexual dimorphism, and growth in the angonoka tortoise (Geochelone yniphora) of western Madagascar
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: LoraL. Smith --- University of Florida, USA Miguel Pedrono --- Université Pierre et Marie Curie, France RobertM. Dorazio --- U.S. Geological Survey, USA Jack Bishko --- University of Florida, USAThe most recent description of the morphology of the rare endemic Madagascar tortoise, Geochelone yniphora was based on fewer than 20 specimens. We collected morphological data for 200 free‐ranging tortoises from five populations over a four‐year period. Tortoises ranged in... -
A review of the small east African Cordylus (Sauria: Cordylidae), with the description of a new species
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe, WilliamR. Branch --- Port Elizabeth Museum, South AfricaThe small and previously neglected East African girdled lizards (excluding the Cordylus warreni complex) are reviewed and seven species are recognised. The terrestrial species C. ukingensis (Loveridge) is restricted to montane grasslands in southwestern Tanzania and may be of conservation... -
Long‐term variation in reproductive traits of Bibron's agama, agama impalearis, in Western Morocco
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: M. Znari --- Cadi Ayyad University, Morocco E. El Mouden --- Cadi Ayyad University, Morocco H. Francillon‐Vieillot --- Université Denis Diderot Paris 7, Laboratoire d'Anatomie Comparée, FranceFemale reproductive characteristics (clutch size [CS], egg volume [EV] and egg mass [EM]) of Agama impalearis and their annual variation were studied over a six‐year period (1993–1998) in the central Jbilet mountains, Western Morocco. Females produced one to two clutches... -
A review of the species of Psammophis Boie found south of Latitude 12° S (Serpentes: Psammophiinae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe,The status, relationships and zoogeography of the 14 taxa of Psammophis found south of Latitude 12° S are reviewed and the following taxonomic changes are proposed: 1. Psammophis trinasalis and P. namibensis, previously treated as subspecies of... -
A review of the southern African ‘non‐spitting’ cobras (Serpentes: Elapidae: Naja)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe, Wolfgang Wüster --- University of Wales, Wales, U.K.We analysed the systematics of the ‘non‐spitting’ cobras of southern Africa, paying particular attention to the Naja annulifera complex. Multivariate morphometric analyses demonstrate that the taxa annulifera and anchietae are consistently distinct and homogenous over their respective ranges, and their... -
A review of Whyte's Water‐snake, Lycodonomorphus whytii (Serpentes: Colubridae: Lamprophiinae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Jens Bødtker Rasmussen --- University of Copenhagen, DenmarkLycodonomorphus whytii from Malawi and Tanzania is only known from three specimens. Additional potential records from the area in question are carefully discussed and four recently obtained specimens have been examined in respect to lepidosis, dentition, size, internal morphology and... -
Niche separation and comparative abundance of Boulengerula boulengeri and Scolecomorphus vittatus (Amphibia: Gymnophiona) in an East Usambara forest, Tanzania
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DavidJ. Gower --- The Natural History Museum, UK SimonP. Loader --- University of Glasgow, UK CliveB. Moncrieff --- The Natural History Museum, UK Mark Wilkinson --- The Natural History Museum, UKThe ecology of the sympatric caecilians Boulengerula boulengeri and Scolecomorphus vittatus was studied in Nilo Forest Reserve in the East Usambara Mountains, Tanzania. Three sampling methods (timed digging, pitfall trapping and casual visual encounter surveys of the forest floor) yielded... -
Generation glands and sexual size dimorphism in the Cape Crag Lizard, Pseudocordylus microlepidotus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: P. le FrasN. Mouton --- University of Stellenbosch, South Africa Carmen Gagiano --- University of Stellenbosch, South Africa Beate Sachse --- University of Stellenbosch, South AfricaThe Cape Crag Lizard, Pseudocordylus microlepidotus, is unique among cordylid lizards in that generation glands are not restricted to the femoral region, but also occur on the dorsum and in the inguinal region. We analysed 274 museum specimens of P... -
Shell characteristics and sexual dimorphism in the Namaqualand speckled padloper, Homopus signatus signatus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: VictorJ.T. Loehr --- University of the Western Cape, South Africa BrianT. Henen --- University of the Western Cape, South Africa MargarethaD. Hofmeyr --- University of the Western Cape, South AfricaThere is little quantitative information regarding the two subspecies of the world's smallest tortoise, Homopus signatus. To help characterise the northern subspecies H. s. signatus and evaluate the development of shell size and colour patterns, we measured shell characteristics of... -
A revision of the East African species of Melanoseps Boulenger (Sauria: Scincidae: Feylininae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: DonaldG. Broadley --- Research Associate, Natural History Museum of Zimbabwe, Zimbabwe AlisonS. Whiting --- Brigham Young University, USA AaronM. Bauer --- Villanova University, USAThe East African species of Melanoseps are revised and the following taxonomic changes proposed: 1. M. ater matengoensis Loveridge 1942 and M. ater misukuensis Loveridge 1953 are placed in the synonymy of M. ater (Günther 1873). 2. Melanoseps emmrichi sp... -
Analysis of intraspecific colour variation in the fossorial Coastal Legless Lizard, Microacontias litoralis (Scincidae: Acontiinae)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: PhomoloL. Mashinini --- Transvaal Museum, South Africa Neil.J. L. Heideman --- University of the Free State, South Africa P. le FrasN. Mouton --- Stellenbosch University, South AfricaAn analysis of intraspecific variation in the fossorial skink Microacontias litoralis revealed that orange‐coloured and melanistic individuals co‐occur at several localities. Body colour was found to be independent of sex and body size. Both orange‐coloured and melanistic in situ embryos... -
Small and sensitive to drought: consequences of aridifiation to the conservation of Homopus signatus signatus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Victor J. T. Loehr --- University of the Western Cape, South Africa MargarethaD. Hofmeyr --- University of the Western Cape, South Africa BrianT. Henen --- University of the Western Cape, South AfricaSeveral climate models predict that the western Succulent Karoo in South Africa will aridi-fy. This region includes the range of the smallest tortoise, Homopus signatus signatus. Although the effects of rainfall on the physiology and ecology of H. s. signatus... -
Ecological notes on two sympatric Psammophis species from East Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: AmandaM. Cottone --- Villanova University, USA AaronM. Bauer --- Villanova University, USAWe investigated the ecology of two sympatric whipsnakes from East Africa (Psammophis punctulatus trivirgatus and P. biseriatus) by examining preserved museum specimens (n = 40). Both species lacked any significant sexual size dimorphism and displayed seasonal reproductive cycles. These findings... -
Phylogenetic relationships among the Stiletto Snakes (genus Atractaspis) based on external morphology
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Katie Moyer --- Whitman College, USA Kate Jackson --- Whitman College, USAStiletto Snakes (genus Atractaspis) are the most poorly studied of the three clades of snakes with front-fanged venom-delivery systems. Fossorial and endemic to Africa and the Middle East, Atractaspis possess uniquely derived mobile fangs that allow them to perform a... -
Description of the tadpoles of two Cameroonian frogs, Leptodactylodon axillaris and L. perreti (Anura: Arthroleptidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Deise Cruz --- California Academy of Sciences, USA AnneliseL. Dawson --- Harvard University, USA DavidC. Blackburn --- California Academy of Sciences, USAWe describe the tadpoles of two closely related frog species of the genus Leptodactylodon (family Arthroleptidae), L. axillaris and L. perreti, that are restricted to the mountains of Cameroon. Tadpoles were collected from near the type locality of each species... -
Morphological variation in Monopeltis guentheri from forest habitat in Brazzaville, Republic of Congo (Squamata: Amphisbaenidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Sylvestre Boudzoumou --- , Republic of Congo Daniel Hoops --- , , Australia Victor Mamonekene --- , Republic of Congo Kate Jackson --- , , USASixty-four Monopeltis guentheri were collected in a small patch of remnant forest within the city of Brazzaville, Republic of the Congo, and were measured for morphological characters traditionally used to classify five species of Central and West African Monopeltis amphisbaenians... -
Measuring corporate failure risk: Does long short-term memory perform better in all markets?
Item type: Journal Article • Journal: Investment Analysts Journal • Authors: Hyeongjun Kim --- Yeungnam University, Korea Hoon Cho --- Korea Advanced Institute of Science and Technology, Korea Doojin Ryu --- Sungkyunkwan University, KoreaRecently, various corporate failure prediction models that use machine learning techniques have received considerable attention. In particular, using a sequence of a company's historical information, rather than just the most recent information, yields better predictive performance by adopting recurrent neural... -
Folkloristic perspectives on food as tourism souvenir: a reflection on stereotypes, meanings and messages in Irish soda bread
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Lucy M Long --- , USAFood has always been a pragmatic part of tourism and hospitality, but it is now being recognised as a souvenir — a reminder of a travel experience. Along with the usual functions of souvenirs as status symbol, proof of travel,... -
Is it like night and day? Nocturnal versus diurnal perch use by dwarf chameleons (Bradypodion pumilum)
Item type: Journal Article • Journal: Treading a Delicate Tightrope: A principal balancing between education and political change during turbulent times • Authors: Krystal A Tolley --- , South AfricaArboreal chameleons must navigate a complex, three-dimensional landscape consisting of trees, bushes and/or grasses of various sizes. This complexity equates to the microhabitat of chameleons, that is, the branches upon which they perch and through which they move. Therefore, chameleons... -
Frame presentations of compact hedgehogs and their properties
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Igor Arrieta --- University of Coimbra, Portugal Javier Gutiérrez García --- University of the Basque Country UPV/EHU, Spain Jorge Picado --- University of Coimbra, PortugalThis paper considers the compact hedgehog as a frame presented by generators and relations, based on the presentation of the frame of extended real numbers. The main focus will be on the point-free version of continuous and semi-continuous functions that... -
Gathering the Dust: Narrating National Hauntologies and Futures in Yvonne Adhiambo Owour’s Dust
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Felix Mutunga Ndaka --- University of Johannesburg, South AfricaThis paper offers a reading of Yvonne Owour’s Dust as a text that engages with national histories in a bid to trouble official Kenyan public memories and re-imagine Kenyan visions of the future. In this article, I argue that the... -
On the coincidence of automorphism groups of finite p-groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Rohit Garg --- Govt. Ripudaman College, India Mandeep Singh --- Arya College, IndiaLet G be a finite non-abelian p-group, where p is a prime. Let γn (G) and Zn (G) respectively denote the nth term of the lower and upper central series of G, and let Ln (G) denote the nth absolute... -
Biological and life-history parameters for Labeo rosae Steindachner, 1894 and Oreochromis mossambicus (Peters, 1852) from Flag Boshielo Dam, Olifants River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HA Hlungwani --- University of Limpopo, South Africa SM Marr --- University of Limpopo, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa JR Sara --- University of Limpopo, South AfricaInland fisheries contribute towards food security for rural communities living close to large aquatic systems. However, sustainable inland fisheries rely on accurate biological information for the target species at the proposed fishery location. In this study, the biological information for... -
On central automorphisms of finite p-groups of class 2
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: M. Shabani-Attar --- Payame Noor University, IranLet G be a finite p-group and let Aut c (G) be the group of all central automorphisms of G. Let be the set of all central automorphisms of G fixing Z(G) elementwise. For a finite p-group of class 2,... -
Sense of power and online trolling among college students: Mediating effects of self-esteem and moral disengagement
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Yiping Zhou --- Sichuan Normal University, China Fang Li --- Sichuan Normal University, China Qinyao Wang --- Hubei University of Technology, China Jiawei Gao --- Sichuan Normal University, ChinaThis study investigated the relationship between the sense of power and online trolling among college students and the role of self-esteem and moral disengagement in that relationship. Participants were 1 268 college students (females = 61.6%, mean age = 19.94,... -
DNA barcoding of five economically important freshwater fish species from the Nile River, Sudan
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Asma Mahmoud Hamza --- University of Kassala, Sudan Amna Taj Elsir Mahjoub Mohammed --- University of Kassala, SudanThe study was conducted to barcode five freshwater fish species obtained from Nile River tributaries (the Atbara River and the Blue Nile), in March 2019, using analysis of partial CO1 gene sequences. Fish samples were identified morphologically as Nile perch... -
Prevalence and predictors of comorbid current alcohol, cannabis, and tobacco use among school adolescents in Liberia and Mauritius
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Karl Peltzer --- University of the Free State, South AfricaThis study aimed to provide estimates on current comorbid alcohol, cannabis, and tobacco use among school adolescents in Liberia and Mauritius. Secondary data were analysed from the 2017 national and cross-sectional school health surveys in Liberia and Mauritius which sampled... -
Lax comma categories of ordered sets
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Maria Manuel Clementino --- University of Coimbra, Portugal Fernando Lucatelli Nunes --- Universiteit Utrecht, NederlandLet Ord be the category of (pre)ordered sets. Unlike Ord/X , whose behaviour is well-known, not much can be found in the literature about the lax comma 2-category Ord//X . In this paper we show that the forgetful functor Ord//X... -
Epimorphisms and closure operators of categories of semilattices
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: D. Dikranjan --- Università degli Studi di Udine, Italy A. Giordano Bruno --- Università degli Studi di Udine, Italy N. Zava --- Institute of Science and Technology Austria (ISTA),Motivated by a problem posed in [10], we investigate the closure operators of the category SLatt of join semilattices and its subcategory SLatt O of join semilattices with bottom element. In particular, we show that there are only finitely many... -
Topogenous orders and related families of morphisms
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: David Holgate --- University of the Western Cape, South Africa Minani Iragi --- Brno University of Technology, Czech RepublicIn a category with a proper ()-factorization system, we study the notions of strict, co-strict, initial and final morphisms with respect to a topogenous order. Besides showing that they allow simultaneous study of four classes of morphisms obtained separately with... -
Huddling in the heat? Rarely seen thermoregulatory behaviours as Southern Pied Babblers Turdoides bicolor compete for cool microsites
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Amanda R Bourne --- University of Cape Town, South Africa Camilla Soravia --- The University of Western Australia, AustraliaHuddling is an important thermoregulatory behaviour used by many group-living endotherms to conserve energy during cold weather or periods of food scarcity. It is not typically considered a strategy for keeping cool during hot weather, largely because endotherms produce body... -
A new record of a chick falling from a nest in Limpopo province, South Africa, adds to the known causes of Hooded Vulture Necrosyrtes monachus mortality
Item type: Journal Article • Journal: African Zoology • Authors: --- , South Africa --- , South Africa --- University Thomas Sankara, Burkina Faso --- , South Africa --- , United StatesFor all species, causes of mortality, both anthropogenic and natural, should be recorded. In Critically Endangered species these records are even more important, owing to their potential impacts on small and/or declining populations. Here we present a case of natural... -
Plumage dimorphism and moult patterns of weaverbirds – a review
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: H-Dieter Oschadleus --- University of KwaZulu-Natal, South Africa Staffan Andersson --- University of Gothenburg, SwedenThe colourful plumages of weaverbirds (family Ploceidae, with 118 species recognised) provide a well-known and in part iconic showcase of sexual selection, with widespread sexual dimorphism (93 species) as well as seasonal dimorphism (62 species). The tremendous diversity in both... -
Tax education and taxpayer enculturation: Initiatives for South Africa
Item type: Journal Article • Journal: South African Journal of Accounting Research • Authors: David Colin Greenham --- Durban University of Technology, South Africa Rajesh Ramlall --- Durban University of Technology, South Africa Lesley June Stainbank --- School of Accounting, Economics and Finance, University of KwaZulu-Natal, South AfricaThe South African Revenue Service acknowledges that it faces various risks, such as revenue collection uncertainty, unfavourable public perceptions and low compliance. Despite South Africa’s sophisticated taxation system, improvements to taxpayer education may provide the most comprehensive opportunity to allay... -
Effect of plant spacing and cutting intensity on the morphology and productivity of forage cactus [Opuntia stricta (Haw.) Haw.]
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Claudia Maciel Ferreira --- Universidade Federal Rural de Pernambuco, Brazil Marcio Vieira da Cunha --- Universidade Federal Rural de Pernambuco, Brazil Mércia Virginia Ferreira dos Santos --- Universidade Federal Rural de Pernambuco, Brazil Alexandre Carneiro Leão de Mello --- Universidade Federal Rural de Pernambuco, Brazil Djalma Cordeiro dos Santos --- Instituto Agronômico de Pernambuco, Brazil Maria da Conceição Silva --- Instituto Agronômico de Pernambuco, Brazil Janerson José Coelho --- Universidade Federal Rural de Pernambuco, BrazilThe forage cactus cultivar Mexican elephant ear (MEE) [Opuntia stricta (Haw.) Haw.] has been widely used in the semi-arid of Brazil because of its resistance to carmine mealybug. Therefore, it is necessary to establish planting and harvesting management strategies for... -
Hospitality in volunteer engagement: navigating complexities in residential care facilities for children
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Rodney Westerlaken --- NHL Stenden University of Applied Sciences, The NetherlandsThis study investigates the multifaceted realm of volunteer engagement in orphanages and residential care facilities for children, as places of hospitality towards volunteers, in low- and middle-income countries. While the positive outcomes of such engagements, including assistance, economic contributions and... -
A rigid Riesz space
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: A.W. Wickstead --- Queen’s University Belfast, , Northern Ireland, UKWe give an example of an Archimedean Riesz space on which every automorphism is a strictly positive multiple of the identity. -
Thermal tolerances of littorinid snails from temperate and subtropical South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CD McQuaid --- Rhodes University, South Africa TG Matumba --- Rhodes University, South AfricaEnvironmental temperature affects ectotherm performance and fitness because physiological performance increases up to a sublethal optimum temperature; this is not fixed, but depends on the species and individual history. We explored the influence of species identity, size and thermal history... -
Impact of interactions between common bottlenose dolphins and purse-seiners in the Moroccan Mediterranean region: case study in the Al Hoceima fishing grounds
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Keznine --- Abdelmalek Essaâdi University, Morocco B Mghili --- Abdelmalek Essaâdi University, Morocco H Awadh --- Abdelmalek Essaâdi University, Morocco M Analla --- Abdelmalek Essaâdi University, Morocco M Aksissou --- Abdelmalek Essaâdi University, MoroccoThis study examines the effect of common bottlenose dolphins Tursiops truncatus on the purse-seine fishery for small pelagic fishes in the Mediterranean Sea and the economic consequences thereof. The investigation focused on the fleet registered at the port of Al... -
Representing the Politics of Memory: Narrative Strategies in Forna’s The Devil that Danced on the Water (2002) and The Memory of Love (2010)
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Maryline Chepngetich Kirui --- Moi University, KenyaThis article examines how Aminatta Forna manipulates point of view to represent the politics of memory in her memoir, The Devil that Danced on the Water (2002), and her novel, The Memory of Love (2010). It proceeds from the view... -
Motor development and emotion recognition among young rural children: The mediating role of working memory
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ping Ge --- Henan University, China Xin Wang --- Qingdao University, China Lingyuan Li --- Henan University, China Ge Song --- , China Qiaoling Li --- Henan University, ChinaThis study explored the relationship between motor development and emotion recognition among young rural children and the mediating role of working memory. A total of 187 children (girls= 41.71%) aged 3-6 years from rural kindergartens in the Henan Province in... -
Fixed points of principal E 6-bundles over a compact algebraic curve
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Álvaro Antón-Sancho --- Fray Luis de Leon University College of Education, Catholic University of Ávila, SpainLet X be a compact algebraic curve of genus g ≥ 2. The nontrivial outer automorphism σ of the complex Lie group E 6 acts on the moduli space M(E 6) of principal E 6-bundles over X , and this... -
Counting Common Starlings: is Sturnus vulgaris invasive in rural South Africa?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adrian JFK Craig --- Rhodes University, South Africa Shelley Edwards --- Rhodes University, South AfricaThe numbers of Common Starlings Sturnus vulgaris and indigenous starling species, as well as a subset of other common birds, were recorded from October 2006 to January 2020 at 72 point-count sites along four routes (two urban and two rural)... -
Lax pullback complements in partial morphism categories
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: S.N. Hosseini --- Mahani Mathematical Research Center, Shahid Bahonar University of Kerman, Iran L. Yeganeh --- Mahani Mathematical Research Center, Shahid Bahonar University of Kerman, IranThe goal of this article is to characterize the lax pullback complement of a given partial morphism along a total morphism, in an -partial morphism category, where is an exponentiable stable system. To achieve this, we first show that if... -
Geographic distribution of the scorpion fauna in the central Moroccan region of Souss-Massa with potential implications for public health
Item type: Journal Article • Journal: African Zoology • Authors: Fouad Salhi --- Ibn Zohr University, Morocco John P Dunbar --- Institute, University of Galway, Ireland Colin Lawton --- Animal Ecology & Conservation Unit, Ryan Institute, University of Galway, Ireland Jamila Hermas --- Ibn Zohr University, Morocco Jaouad Abou Oualid --- Ibn Zohr University, Morocco Michel M Dugon --- Institute, University of Galway, IrelandDespite the medical importance of North African scorpions, many aspects of their ecology which may be important to understand envenoming patterns throughout their range, remain understudied. The region of Souss-Massa in central Morocco exhibits a high incidence of scorpion envenomings,... -
Local and 2-local automorphisms of solvable Leibniz algebras with abelian and model nilradicals
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Iqboljon Karimjanov --- Saint-Petersburg State University, Russia Sardorbek Umrzaqov --- Andijan State University, Uzbekistan Bakhtiyor Yusupov --- V.I. Romanovskiy Institute of Mathematics, Uzbekistan Academy of Sciences, UzbekistanIn the paper, we describe the automorphisms on the solvable Leibniz algebras with the model or abelian nilradicals, whose complementary spaces are equal to two and one, respectively. We show that any local automorphism on a solvable Leibniz algebra with... -
Argument estimates associated with meromorphic close-to-starlike and Bazilević functions
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Nak Eun Cho --- Pukyong National University, Republic of Korea Inhwa Kim --- Harris-Stowe State University, U.S.A H.M. Srivastava --- University of Victoria, CanadaThe object of the present paper is to derive some argument properties associated with meromorphic close-to-starlike and Bazilević functions in the punctured open unit disk. Furthermore, we investigate integral-preserving properties in a sector with some special cases of the main... -
Callous-unemotional traits and online aggressive behaviour: Mediated moderation by moral disengagement
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Lijun Song --- School of Marxism, Zhengzhou Urban Construction Vocational College, ChinaThis study investigated the role of moral disengagement in the relationship between callous-unemotional traits and online aggression. The study sample comprised 484 college students (female = 68.4%; mean age = 19.27 years, SD = 1.21 years). The students completed questionnaires... -
Remote sublocales
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Mbekezeli Nxumalo --- University of South Africa, South AfricaWe use the notion of a remote collection of a Tychonoff space to define a remote sublocale of any locale. Our definition is conservative, in the sense that, a subset is remote if and only if the sublocale it induces... -
World War 1 and Colonialism in Kenya: Perspectives through Historiography and Literary Imaginaries
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Jairus Omuteche --- Masinde Muliro University of Science and Technology, KenyaDuring World War I, what is today Kenya was part of the British East African Protectorate. Direct fighting took place within the region as the neighbouring Tanzania was a German colony. The cultural and economic repercussions of the war transformed... -
The Subversion of Archipelagic Memory in Yvonne Owuor’s The Dragonfly Sea
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Edgar Fred Nabutanyi --- Makerere University, South AfricaArchipelago memory and history are often scripted as inherently colonial and patriarchal obligations. This is anchored on the belief that it is the dominant power that connects the archipelago and curates its history-making enterprise. This logic, which affirms the agency... -
Effects of materialism and perceived social support on the mental health of college students
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Ming Hong --- , ChinaWe aimed to examine the role of materialism and perceived social support on the mental health of college students. Participants were 988 college students from Guangdong Province, China (female = 55.77 %; mean age =19.70 years, SD = 1.56 years)... -
Morphological variations in the African palm weevil, Rhynchophorus phoenicis (F) (Coleoptera: Curculionidae), in Kenya and Uganda
Item type: Journal Article • Journal: African Zoology • Authors: James P Egonyu --- International Centre of Insect Physiology and Ecology, Kenya Alfonce Leonard --- Tanzania Agricultural Research Institute (TARI) Ukiriguru Centre, Tanzania Chrysantus Mbi Tanga --- International Centre of Insect Physiology and Ecology, Kenya Sevgan Subramanian --- International Centre of Insect Physiology and Ecology, KenyaWe investigated morphological differences in the African palm weevil (Rhynchophorus phoenicis) from Kenya (Busia and Kwale) and Uganda using a LEICA EZ4HD stereo microscope and an absolute digimatic caliper. Ten pronotal colour patterns were recorded, of which two (brown with... -
Two new species of Hemidactylus Goldfuss, 1820 (Squamata: Gekkonidae) from the coastal areas of northern Somaliland
Item type: Journal Article • Journal: African Zoology • Authors: Tomáš Mazuch --- Mendel University, Czech Republic Vojtěch Janák --- Charles University, Czech Republic Doubravka Velenská --- Charles University, Czech Republic Annamaria Nistri --- Museo di Storia Naturale dell’Univesità degli Studi di Firenze, Italy Hassan Sh Abdirahman Elmi --- Charles University, Czech Republic Jiří Šmíd --- Charles University, Czech RepublicThe taxonomy of many Hemidactylus geckos from the Horn of Africa has recently been evaluated. However, the lack of fresh material for some species and also regions has led to the misidentification of some taxa and an underestimation of the... -
The isomorphism problem for rational group algebras of finite metacyclic nilpotent groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Àngel García-Blázquez --- Universidad de Murcia, Spain Ángel del Río --- Universidad de Murcia, SpainWe prove that if G and H are finite metacyclic groups with isomorphic rational group algebras and one of them is nilpotent, then G and H are isomorphic. -
On conjugacy of additive actions in the affine Cremona group
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ivan Arzhantsev --- HSE University, RussiaAn additive action on an irreducible algebraic variety X is an effective action with an open orbit of the vector group . Any two additive actions on X are conjugate by a birational automorphism of X. We prove that, if... -
A generalization of Riesz* homomorphisms on order unit spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Florian Boisen --- Institut für Analysis, TU Dresden, Germany Valentin G. Hölker --- Institut für Analysis, TU Dresden, Germany Anke Kalauch --- Institut für Analysis, TU Dresden, Germany Janko Stennder --- Institut für Analysis, TU Dresden, Germany Onno van Gaans --- Leiden University, The NetherlandsRiesz homomorphisms on vector lattices have been generalized to Riesz* homomorphisms on ordered vector spaces by van Haandel using a condition on sets of finitely many elements. Van Haandel attempted to prove that it suffices to take sets of two... -
Estimation accuracy of bean bags as portion size estimation aids for amorphous foods
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Friedeburg Anna Maria Wenhold --- University of Pretoria, South Africa Una Elizabeth MacIntyre --- University of Pretoria, South Africa -
Comparison of the acute toxicity and behavioural effects of two pyrethroids on African catfish Clarias gariepinus fingerlings
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EO Ogueji --- Alex Ekwueme Federal University, Nigeria JJ Ekpenyong --- Alex Ekwueme Federal University, Nigeria GU Amana --- Kogi State University, Nigeria EB Tabi --- Alex Ekwueme Federal University, Nigeria IB Okey --- Cross River University of Technology, Nigeria MO Olaolu --- Alex Ekwueme Federal University, Nigeria JN Nwakpa --- Ebonyi State University, NigeriaTwo of the most-commonly used pyrethroid insecticides were subjected to static bioassays to determine their acute toxicity to Clarias gariepinus fingerlings, followed by comparisons of their impact on mortality and behavioural changes in the fish. The LC50 values for deltamethrin... -
Patterned, plain, and in-between: An assessment of ecogeographic divergence between colour pattern morphs of the common egg-eater Dasypeltis scabra
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jody M. Barends --- University of Johannesburg, South Africa Ielhaam Bassier --- University of the Western Cape, South Africa Emma E. Buckley --- University of the Western Cape, South Africa Cora S. Stobie --- National Museum, South Africa Michael F. Bates --- National Museum, South AfricaIntraspecific variation in colour patterns may reflect adaptive responses to local environmental regimes that favour selection of different trade-offs between visual communication, thermoregulation, and anti-predatory functions. Understanding the drivers of colour pattern variation within species can therefore provide valuable insights... -
Catalysts of social change and innovation: Mediating role of social self-efficacy and social support on social entrepreneurial intentions
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Abin John --- Bharathidasan University, India Vanitha Selvaraj --- Bharathidasan University, India Muhammed Jisham --- Bharathidasan University, IndiaThere has been a recent surge in social entrepreneurship to address pressing social problems. Social ventures drive positive change and reshape traditional business norms by providing innovative solutions and fostering inclusive growth. Social entrepreneurial intention (SEI) is crucial to studying... -
Some characterizations of ergodicity in Riesz spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Youssef Azouzi --- Tunis-El Manar University, Tunisia Marwa Masmoudi --- Tunis-El Manar University, TunisiaIn the recent surge of papers on ergodic theory within Riesz spaces, this article contributes by introducing enhanced characterizations of ergodicity. Our work extends and strengthens prior results of both the authors and Homann, Kuo, and Watson. Specifically, we show... -
A rapid fishery assessment to collect biological information and life-history parameters for rednose labeo Labeo rosae and Mozambique tilapia Oreochromis mossambicus in Loskop Dam, Olifants River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HA Hlungwani --- University of Limpopo, South Africa SM Marr --- University of Limpopo, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa AC Hoffman --- , South Africa H Botha --- University of Limpopo, South Africa JR Sara --- University of Limpopo, South AfricaA 2-week rapid fishery assessment using various sampling gears was conducted to collect life-history data on rednose labeo Labeo rosae and Mozambique tilapia Oreochromis mossambicus in Loskop Dam on the Olifants River, Mpumalanga Province, South Africa. These native species were... -
Semi-c-periodicity, c-uniform recurrence and almost automorphy in the complex plane
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: H. Ounis --- University of Alicante, Spain J.M. Sepulcre --- University of Alicante, SpainThis paper is devoted to develop the concepts of semi-c-periodicity, c-uniform recurrence and almost automorphy for functions defined on vertical strips in the complex plane, where c is a non-zero complex number. As an extension of the study performed for... -
On partial endomorphisms of a star graph
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Ilinka Dimitrova --- South-West University “Neofit Rilski”, Bulgaria Vítor H. Fernandes --- Universidade Nova de Lisboa, Portugal Jörg Koppitz --- Institute of Mathematics and Informatics, BulgariaIn this paper we consider the monoids of all partial endomorphisms, of all partial weak endomorphisms, of all injective partial endomorphisms, of all partial strong endomorphisms and of all partial strong weak endomorphisms of a star graph with a finite... -
Prevalence and treatment-related outcome of hospitalised type 2 diabetes mellitus patients with comorbidities at an academic hospital in Johannesburg
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: T Makhabane --- University of the Witwatersrand, South Africa G Gabriels --- University of the Witwatersrand, South Africa S Chetty --- University of the Witwatersrand, South Africa -
‘Vampire birds’: diet metabarcoding reveals that migrating Woodchat Shrikes Lanius senator consume engorged camel ticks in a desert stopover site
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Crinan Jarrett --- Swiss Ornithological Institute, Switzerland Marc Illa --- Institut Català d’Ornitologia, Nat-Museu de Ciències Naturals de Barcelona, Spain Marta Burri --- Swiss Ornithological Institute, Switzerland Gabriel Marcacci --- Swiss Ornithological Institute, Switzerland Vanessa A Mata --- Universidade do Porto, Portugal Maria Luisa Boglino --- Konrad-Lorenz Institute of Ethology, University of Veterinary Medicine, Austria Oumnia Himmi --- Mohammed V University of Rabat, Institut Scientifique, Morocco Ivan Maggini --- Konrad-Lorenz Institute of Ethology, University of Veterinary Medicine, Austria Barbara Helm --- Swiss Ornithological Institute, SwitzerlandData on the diets of Afro-Palearctic migratory birds outside their breeding grounds are scarce, despite the importance of feeding during the migratory journey. Here, we report on anecdotal findings from a study in which we used diet metabarcoding to analyse... -
First record of a large breeding colony of the Lesser Black-backed Gull Larus fuscus in mainland Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Mohamed Radi --- , Morocco El-Mustapha Laghzaoui --- Cadi Ayyad University, Morocco Aouissa Salek --- , Morocco Rhimou El Hamoumi --- Hassan II University of Casablanca, Morocco Mohamed Dakki --- , Morocco Abdeljebbar Qninba --- Scientific Institute, Mohamed V University, Morocco El Hassan El Mouden --- Cadi Ayyad University, Morocco Mohamed Aourir --- Ibn Zohr University, MoroccoA breeding colony of the Lesser Black-backed Gull Larus fuscus was discovered at the Khenifiss lagoon on the Atlantic coast of southern Morocco. In June 2022, 222 nests were counted and, in 2023, 62 nests were present. Nests were built... -
Female song in tinkerbirds (family Lybiidae)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sifiso M Lukhele --- University of Cyprus, Cyprus Matteo Sebastianelli --- University of Cyprus, Cyprus Alexander NG Kirschel --- University of Cyprus, CyprusIn species that are sexually monomorphic, it can be challenging to ascertain whether both males and females sing. This is particularly the case when there are no discernible differences in the vocalisations of each sex. It is known that females... -
Strengthening the DNA barcode reference library for marine copepods in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Rawoot --- University of the Western Cape, South Africa A Govender --- Oceanographic Research Institute (ORI), South Africa JC Groeneveld --- Oceanographic Research Institute (ORI), South Africa S Willows-Munro --- University of KwaZulu-Natal, South Africa R Cedras --- , South AfricaDNA barcode reference libraries that link taxonomically verified species records to standardised barcode sequences form the basis for species identification using molecular methods. We conducted an integrated morphology and molecular study of marine copepods collected from the continental shelf of... -
Estimation of standing crop biomass in rangelands of the Middle Atlas mountains using remote sensing data
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S Boukrouh --- University Mohammed VI Polytechnic (UM6P), Morocco Y Bouazzaoui --- Institut Agronomique et Vétérinaire Hassan II, Morocco A El Aich --- Institut Agronomique et Vétérinaire Hassan II, Morocco H Mahyou --- Institut National de la Recherche Agronomique, Morocco M Chikhaoui --- Institut Agronomique et Vétérinaire Hassan II, Morocco M Ait Lafkih --- Institut Agronomique et Vétérinaire Hassan II, Morocco O N’Dorma --- Institut Agronomique et Vétérinaire Hassan II, Morocco CL Alados --- Instituto Pirenaico de Ecología (CSIC), SpainIn the Middle Atlas rangelands, traditional methods for estimating standing crop biomass are labour-intensive and impractical. Remote sensing offers an initiative for standing crop biomass large-scale monitoring. The aim of this study was to estimate standing crop biomass, comprising annual... -
Big cities, big bodies: urbanisation correlates with large body sizes and enhanced body condition in African dwarf chameleons (Genus: Bradypodion)
Item type: Journal Article • Journal: African Zoology • Authors: Jody M Barends --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa Krystal A Tolley --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South AfricaUrbanisation is a major driver of habitat transformation that alters the environmental conditions and selective regimes of the habitats where it occurs. For species inhabiting urban habitats, such alterations can facilitate adaptive responses in their phenotypes, including their morphology. Quantifying... -
The approximation property for the predual of weighted spaces of holomorphic mappings on Banach spaces
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Deepika Baweja --- , India Jahir Abbas Sardar --- , IndiaIn this paper, we investigate the approximation property for the predual of the weighted space of holomorphic mappings, where is a countable family of weights defined on a balanced open subset U of a Banach space E. We introduce a... -
Gratitude to nature and pro-environmental behaviour: A moderated mediated model
Item type: Journal Article • Journal: Journal of Psychology in Africa • Authors: Xiaoyu Li --- Inner Mongolia Normal University, China Xindi Kong --- Inner Mongolia Normal University, China Hongyu Liang --- Inner Mongolia Normal University, China Yifan Wang --- Inner Mongolia Normal University, ChinaWe examined the relationship between trait gratitude to nature and pro-environmental behaviours, and the roles of anthropomorphism and connectedness to nature within this relationship. University students (n = 966; female = 47.09%; mean age = 20.75 years, SD = 1.42... -
Redescription of Arabella iricolor (Montagu, 1804) with descriptions of two new species from the United Kingdom and South Africa
Item type: Journal Article • Journal: African Zoology • Authors: T Darbyshire --- , Wales, United Kingdom J Kara --- Cape Peninsula University of Technology, South AfricaArabella iricolor (Montagu, 1804) was described with no diagnostic information for the characters used today to distinguish species within the genus. An updated description, together with genetic data, is provided using the holotype in conjunction with additional specimens collected at... -
A new species of Malacoceros (Annelida, Polychaeta, Canalipalpata, Spionidae) from urban waters in Gabon
Item type: Journal Article • Journal: African Zoology • Authors: Nicolas Lavesque --- Université de Bordeaux, CNRS, Bordeaux INP, EPOC, France Aimé Roger Nzigou --- Université des Sciences et Techniques de Makusu (USTM), Gabon Guillemine Daffe --- Université de Bordeaux, Observatoire Aquitain des Sciences de l’Univers, France Johann Ludovic Martial Happi --- Université des Sciences et Techniques de Makusu (USTM), Gabon Geon Hyeok Lee --- National Institute of Biological Resources, Seo-gu, Korea Karin Meißner --- Senckenberg am Meer, Deutsches Zentrum für Marine Biodiversitätsforschung (DZMB), GermanyA new species of Malacoceros is described from estuarine equatorial waters in Libreville (Gabon, West Africa). During a recent environmental study aimed to assess the urban impact on an estuarine ecosystem near Libreville, the collection of sediment samples from the... -
The contribution of social and territorial innovation to territorial development in Morocco: Insights from a systematic review
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Tariq Laajini --- LARETA, Hassan 1st University, Morocco Hind TadjoustiThis study investigates how social and territorial innovation influences territorial development in Morocco, offering insights into inclusive governance approaches that integrate collaborative, participatory, and solidarity-based practices. Utilizing a systematic documentary analysis of six innovative projects, the research reveals that these... -
Genome-wide genetic-marker variation uncovers potential stock structuring of oceanic tuna (skipjack) and coastal tuna (kawakawa) within the western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: FA Mzingirwa --- Kenya Marine and Fisheries Research Institute (KMFRI), Kenya NJ McKeown --- Aberystwyth University, United Kingdom GM Okemwa --- Kenya Marine and Fisheries Research Institute (KMFRI), Kenya WHH Sauer --- Rhodes University, South Africa JS Halafo --- Instituto Oceanográfico de Moçambique (InOM), Mozambique JG Mshana --- Sokoine University of Agriculture, Tanzania JN Kamau --- Kenya Marine and Fisheries Research Institute (KMFRI), Kenya PW Shaw --- Rhodes University, South AfricaTuna and tuna-like species are highly mobile and migratory, and therefore assumed to have single highly connected populations over large ocean regions. However, empirical data on the genetic population structure of such species in the western Indian Ocean (WIO) remain... -
Assessment of the inland wetland ecosystem types in South Africa: threats and protection
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H van Deventer --- Council for Scientific and Industrial Research (CSIR), South Africa Jeanne L Nel --- , The NetherlandsEcosystem threat status (ETS) and ecosystem protection levels (EPLs) are headline indicators that can assess freshwater ecosystems at a country-wide scale. A spatial layer of freshwater, inland wetland ecosystem types of South Africa was combined with a range of spatial... -
Using wing bar patterns to identify sex in Crowned Eagles Stephanoaetus coronatus: A misleading field characteristic
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Shane C Sumasgutner --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Lauren K Common --- University of Vienna, Austria Simon Thomsett --- Soysambu Conservancy, Kenya Colleen T Downs --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Petra Sumasgutner --- University of Vienna, AustriaAlmost universally, raptors exhibit some degree of sexual size dimorphism, with many species also having substantial sexual dimorphism in plumage patterns. The monophyletic clade ‘booted eagles’ generally do not, except for the Crowned Eagle Stephanoaetus coronatus, which are believed to... -
Stabilization of a coupled bridge system with past history and gurtin-pipkin’s heat conduction
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Soh Edwin Mukiawa --- University of Hafr Al Batin, Saudi Arabia Johnson D. Audu --- King Fahd University of Petroleum and Minerals, Saudi Arabia Salim A. Messaoudi --- University of Sharjah, United Arab EmiratesThe asymptotic stability of the vertical vibrations of a suspension bridge and the main cables from which the bridge is suspended by the cables is investigated. The history of the materials of the bridge and the effect of heat governed... -
The triple burden of obesity, HIV, and anaemia during pregnancy and associations with delivery outcomes in urban South Africans
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Alessandra Prioreschi --- University of the Witwatersrand, South Africa Stephanie V Wrottesley --- University of the Witwatersrand, South Africa Linda Adair --- University of North Carolina at Chapel Hill, USA Kate A Ward --- University of the Witwatersrand, South Africa Shane A Norris --- University of the Witwatersrand, South Africa -
The perfective aspect in Afaan Oromoo
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Eba Teresa Garoma --- Jimma University, Ethiopia Baye Yimam --- Addis Ababa University, EthiopiaThe perfective aspect in linguistic terms signifies the completion of an action or event, presenting it as a single, undivided unit without delving into its internal components, contrasting with the imperfective aspect that focuses on actions/events with internal structure. This... -
Effective descent morphisms of ordered families
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Maria Manuel Clementino --- University of Coimbra, CMUC, Portugal Rui Prezado --- University of Coimbra, CMUC, PortugalWe present a characterization of effective descent morphisms in the lax comma category Ord//X when X is a locally complete ordered set, as well as in the antisymmetric setting. -
Evolution, population structure and morphology of the African Black Duck Anas sparsa and Yellow-billed Duck A. undulata
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Philip Lavretsky --- University of Texas at El Paso, United States Ramsey Russell --- , United States Sara Gonzalez --- University of Texas at El Paso, United States Vergie M Musni --- University of Texas at El Paso, United States Alexis Díaz --- Centro de Ornitología y Biodiversidad (CORBIDI), Peru Joshua I Brown --- University of Texas at El Paso, United StatesBiological conservation requires a fundamental understanding of evolutionary history and established contemporary population genetics. Here, we sequenced mitochondrial DNA (mtDNA) and thousands of nuclear loci across individuals of the African Black Duck Anas sparsa and Yellow-billed Duck A. undulata to... -
The importance of Dakhla (Western Sahara) as a wintering site for Ospreys Pandion haliaetus: first systematic census
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Carlos A Torralvo --- CIMA, Spain Jorge García-Macía --- CIMA, Spain Miguel Ferrer --- CSIC, Spain Virginia Morandini --- National Museum of Natural Sciences of Madrid, CSIC, SpainThe Osprey Pandion haliaetus is a large piscivorous raptor with a world-wide distribution. European populations are often long-distance migrators, overwintering in different regions of Africa and the Mediterranean basin. Until now, citizen science and occasional reports suggested that the Dahkla... -
Potential impact of the parasitising mite, Uropoda orbicularis, as a biological control agent for the red palm weevil, Rhynchophorus ferrugineus
Item type: Journal Article • Journal: African Zoology • Authors: Mahmoud Abbas Ali --- South Valley University, Egypt Ammar Al-Farga --- University of Jeddah, Saudia Arbia Hanaa S Hussein --- Alexandria University, EgyptThe invasive red palm weevil (RPW) Rhynchophorus ferrugineus is a major pest of palms worldwide. Developing biological control methods is a priority. This study investigated the potential of the mite Uropoda orbicularis as a biocontrol agent against RPW. Uropoda orbicularis... -
Memory and Swahili Aesthetics in Abdulrazak Gurnah’s By The Sea
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Ephantus Kamuhuro --- University of Embu, Kenya Justus Kizito Siboe Makokha --- Kenyatta University, KenyaAbdulrazak Gurnah’s novel By the Sea (2001) is a remarkable work of art wrought out of a diasporic location on the old East African Coast; particularly Zanzibar, an island in the Indian Ocean that is part of the United Republic... -
Exploring the association of alcohol consumption, tobacco use, and multimorbidity in a nationally representative sample of South African adults
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: A Craig --- University of the Witwatersrand, South Africa W Mapanga --- University of the Witwatersrand, South Africa A Mtintsilana --- University of the Witwatersrand, South Africa SN Dlamini --- University of the Witwatersrand, South Africa SA Norris --- University of the Witwatersrand, South Africa -
The role of academic institutions in leveraging innovation through patenting activities: A diagnostic of the Moroccan experience focusing on the agricultural sector
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Sanaa Zebakh --- Ibn Tofail University, Morocco Jaouad Anissi --- EUORMED Research Centre EI-BIOMEDTECH, EUROMED University of Fes, Morocco, Salim Bounou --- EUORMED Research Centre EI-BIOMEDTECH, EUROMED University of Fes, Morocco, Mohammed Sadiki --- Rabat-Instituts, MoroccoIn the late 2000s, Morocco implemented various actions and programmes to establish a National Innovation System, which has helped to bolster innovation and patenting activities within higher education and research institutions. This article investigates the Moroccan innovation framework that facilitated... -
Doke revisited – Combining Zulu ‘vowel verbs with variant non-vowel forms’ and ‘latent-vowel verbs’ in a single category
Item type: Journal Article • Journal: South African Journal of African Languages • Authors: Michel Lafon --- University of Pretoria, South Africa Mongezi Bolofo --- University of South Africa,Doke’s influence on Zulu description cannot be overstated. It underlies, to this day, most grammatical works on the language. Our attempt here is to do away with a subtle distinction Doke introduced by merging the two sub-categories of what he... -
A new Rain Frog (Anura: Brevicipitidae; Breviceps) from the KwaZulu-Natal Midlands, South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: LH du Preez --- North-West University, South Africa EC Netherlands --- North-West University, South Africa LR Minter --- North-West University, South AfricaBreviceps, an African genus of fossorial frogs, comprises 20 species most of which occur in South Africa. In this study we describe a new species that differs morphologically from its closest congener Breviceps verrucosus, in the position of the mouth... -
On automorphism groups of the conjugacy class type Cayley graphs on the symmetric and alternating groups
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: O. Habineza --- University of the Western Cape, South Africa E. Mwambene --- University of the Western Cape, South AfricaThe automorphism groups of Cayley graphs on symmetric groups, Cay(G, S), where S is a complete set of transpositions have been determined. In a similar spirit, automorphism groups of Cayley graphs Cay(An , S) on alternating groups An , where... -
Ghost gear crisis: the threat of ‘abandoned, lost or otherwise discarded fishing gear’ (ALDFG)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LA Odhiambo --- Directorate of Research and Innovation, Kenya F Kawaka --- Jaramogi Oginga Odinga University of Science and Technology, Kenya J Sande --- , KenyaAbandoned, lost or otherwise discarded fishing gear (ALDFG), also known as ghost gear, represents one of the most under-addressed environmental threats. ALDFG is a problem because it is often non-biodegradable and continues to trap marine life long after the gear... -
Growth patterns and condition index of rock oysters Saccostrea cucullata in relation to river influence in southeastern Madagascar
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Masimana --- Institut d’Enseignement Supérieur d’Anôsy, Université de Toliara, Madagascar A Andrisoa --- Aix-Marseille University, CNRS, IRD, INRAE, CEREGE, FranceSaccostrea cucullata is the dominant species of rock oyster (family Ostreidae) in southeastern Madagascar. Despite its economic and ecological importance, information on its biology and ecology is scarce. This study investigated the growth, shell length–weight relationship, and condition index (tissue... -
Access to PrEP for cis and transgender women: Developing and implementing a community-based intervention adapted to populations exposed to HIV in Mali, Morocco, and Mauritius
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Mustapha Sodqi --- Association de Lutte Contre le Sida, Morocco Amal Ben moussa --- Association de Lutte Contre le Sida, Morocco Rosemary Delabre --- , France Rime Barrakad --- Association de Lutte Contre le Sida, Morocco Luis Sagaon Teyssier --- Aix-Marseille University, France Niloufer Khodabocus --- Lutte contre le SIDA, Mauritius Sofia Fathi --- Association de Lutte Contre le Sida, Morocco Fodié Diallo --- ARCAD Santé PLUS, Mali Patrice Monvoisin --- Lutte contre le SIDA, Mauritius Bintou Keita Dembele --- ARCAD Santé PLUS, Mali Annette Treebhoobun --- Lutte contre le SIDA, Mauritius Naoual Laaziz --- Association de Lutte Contre le Sida, Morocco Lahoucine Ouarsas --- Association de Lutte Contre le Sida, Morocco Daniela Rojas Castro --- , France Mehdi Karkouri --- Association de Lutte Contre le Sida, MoroccoBackground: Pre-exposure prophylaxis (PrEP) is recommended as part of a comprehensive HIV prevention approach, but its uptake among women, particularly those in key populations, remains limited. -
A Portuguese urban vegetable garden under the gaze of hospitality
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Cynthia Luderer --- Social Sciences Institute, University of Minho, PortugalThis work concerns an urban vegetable garden in the north-west of Portugal and aims to describe the hospitality surrounding this environment. This study resulted from a two-year field investigation, which was methodologically driven by ethnography and supported by the anthropology... -
Ritualised wealth and the moral spectacle: interrogating occult imagery in Nigerian media narratives
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Ugochukwu Zacky Eze --- University of Nigeria, NigeriaIn this article, I examine how the Nigerian media constructs narratives of ritualised wealth as a moral spectacle that negotiates the tensions between youth aspiration, economic uncertainty and institutional failure. Using a qualitative design and thematic analysis, I interrogate ten... -
Impact of catch and release on the welfare of bronze seabream Pachymetopon grande in the South African marine shore-based fishery
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: EC Butler --- Rhodes University, South Africa MW Farthing --- Rhodes University, South Africa CS Bova --- Rhodes University, South Africa A-R Childs --- Rhodes University, South Africa WM Potts --- Rhodes University, South AfricaThe practice of catch-and-release (C&R) angling is increasingly being integrated into recreational fisheries as a conservation strategy to promote sustainability. However, C&R can still have lethal or sublethal effects owing to various stressors involved in the act of angling. Using... -
DNA-based species identification as a tool to distinguish invasive Nassella species in South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Anthony Mapaura --- University of the Free State, South Africa Kim Canavan --- University of the Free State, South Africa David M Richardson --- Stellenbosch University, South Africa Nicholas C Le Maitre --- Stellenbosch University, South Africa V Ralph Clark --- University of the Free State, South Africa Sandy-Lynn Steenhuisen --- University of the Free State, South AfricaThe three non-native Nassella species (N. neesiana, N. tenuissima, and N. trichotoma) occurring in the South African montane grasslands are morphologically cryptic, and hence difficult to distinguish from several taxonomically complex, co-occurring tufted C3 perennial grass genera (e.g. Festuca), and... -
Mycorrhizal fungi in Acacia mearnsii plantations and native fragments of the Pampas biome, southern Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Etienne Winagraski --- Universidade Federal do Paraná, Brazil Celso Garcia Auer --- Universidade Federal do Paraná, Brazil Pedro Henrique Riboldi Monteiro --- Universidade Federal do Paraná, Brazil Antônio Rioyei Higa --- Universidade Federal do Paraná, Brazil Glaciela Kaschuk --- Universidade Federal do Paraná, BrazilBlack wattle (Acacia mearnsii) was introduced to southern Brazil in the 1930s without any documented history of microbial inoculation. This study tested the hypothesis that black wattle introduction does not harm indigenous arbuscular mycorrhizal fungi (AMF) communities or reduce soil... -
Large bird collision mortality on power lines in southern Namibia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: John Pallett --- University of Cape Town, South Africa Peter G Ryan --- University of Cape Town, South AfricaGlobally, power lines cause significant mortalities of birds through collisions and electrocutions, yet this problem has received only sporadic attention in Namibia. Vehicle-based surveys were undertaken every three months for one year to record mortalities of large birds along 349... -
Monitoring survival probabilities of Cape Vultures Gyps coprotheres in South Africa, using GPS tracking data
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sophie Pulcella --- Knowsley Safari, Prescot, United Kingdom Kerri Wolter --- Vulpro NPC, South Africa Juliana Pinto --- Vulpro NPC, South Africa Brian Kuhn --- Vulpro NPC, South Africa Wolfgang Fiedler --- Max Planck Institute of Animal Behaviour, GermanyThe Cape Vulture Gyps coprotheres is a species of Old-World vulture endemic to southern Africa. Currently listed as ‘Vulnerable’ by the IUCN, they face increasing threats from anthropogenic hazards, such as collisions with man-made infrastructure and poisoning events, leading to... -
Spatiotemporal shape variation in sagittal otoliths of spotted grunter Pomadasys commersonnii in South African estuaries
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: V Coetzee --- Department of Biological Sciences, University of Cape Town, South Africa S Kerwath --- Department of Biological Sciences, University of Cape Town, South Africa S Lamberth --- Department of Forestry, Fisheries and the Environment (DFFE), South Africa D Parker --- Department of Biological Sciences, University of Cape Town, South AfricaThe morphological structure of fish otoliths is under dual regulation by genetic and environmental factors, and has been successfully used to aid stock delineation. This study examined whether differences in sagittal otolith shape outlines could be used to delineate potential... -
Comparative growth and carotenoid production in the green microalga Dunaliella salina from marine and continental ecosystems: harnessing environmental diversity for sustainable industrial applications
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Benabouche --- Biotechnology Laboratory, Specialised Centre for Valorisation and Technology of Marine Products (CSVTPM), National Institute of Marine Research (INRH), Morocco M Chikhaoui --- Biotechnology Laboratory, Specialised Centre for Valorisation and Technology of Marine Products (CSVTPM), National Institute of Marine Research (INRH), Morocco H Baazizi --- Laboratory of Quality Control, Specialised Centre for Valorisation and Technology of Marine Products (CSVTPM), National Institute of Marine Research (INRH), Morocco F El Filali --- Laboratory of Quality Control, Specialised Centre for Valorisation and Technology of Marine Products (CSVTPM), National Institute of Marine Research (INRH), Morocco A Banaoui --- Laboratory of Aquatic Systems: Marine and Continental Environments (AQUAMAR), Faculty of Sciences, Ibn Zohr University, MoroccoIn Morocco, diverse saline ecosystems support both industrial salt production and the growth of Dunaliella salina, a halophilic unicellular green microalga in class Chlorophyceae, and well-known for its applications in aquaculture, cosmetics, food and pharmaceuticals owing to its significant carotenoid-producing... -
With an Effluent Eye: Migrancy, Excess, and Belonging in Jane Bryce’s Zamani
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Sam Dennis Otieno --- The Pennsylvania State University, USAThis article examines Jane Bryce’s Zamani (2023) through the conceptual lens of the effluent eye, drawing on Rosemary Jolly’s (2023) theorization of effluence alongside Achille Mbembe’s (2019) necropolitics and Mahmood Mamdani’s (2020) critique of ethnic nationalism. I argue that Zamani...
