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Reductions in Plant Species Richness under Stands of Alien Trees and Shrubs in the Fynbos Biome
Item type: Journal Article • Journal: South African Forestry Journal • Authors: D.M. Richardson --- Jonkershoek Forestry Research Centre, I. A.W. Macdonald --- , G.G. Forsyth --- Jonkershoek Forestry Research Centre,The reduction of species richness of indigenous plants is one of the major problems associated with the presence of dense stands of invasive alien trees and shrubs in the Fynbos Biome of the Cape Province, South Africa. A synthesis was... -
Modelling Diameter and Height Distributions through Dispersion Statistics in Even-aged Pine Plantations
Item type: Journal Article • Journal: South African Forestry Journal • Authors: HorstW. Kassier --- , South Africa BrianV. Bredenkamp --- Department of Forest Science, South AfricaDiameter and height distribution recovery, in combination with standlevel projection modelling, is generally used in Southern Africa for predicting growth and yield in even-aged pine plantations. A different approach for modelling diameter and height distributions for five pine species commercially... -
The importance of certain insects as pollinators of sunflower (Helianthus annuus L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.P. du Toit --- , Republic of South AfricaThis study reports the effects of Apis mellifera L. (honeybees), Astylus atromaculatus Blanchard (spotted maize beetles), Heliothis armigera Hübner (American bollworm larvae) and Musca domestica L. (house flies) on seed set in commercial sunflower. The pollination efficiency of these insects... -
Comparison of aluminium, basic cations and acidity in the soil of indigenous forests and pine stands in the southern Cape
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.E. Clough --- Saasveld Forestry Research Centre, Republic of South AfricaLitter and topsoil were sampled in plantations of Pinus elliottii and Pinus taeda and in adjacent indigenous forest in three different locations in the southern Cape, to study some of the effects on the soil of the establishment of pine... -
The effects of kelp harvesting on its regrowth and the understorey benthic community at Danger Point, South Africa, and a new method of harvesting kelp fronds
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: G. J. Levitt R. J. Anderson C. J. T. Boothroyd F. A. KempAt Danger Point, South Africa, mariculture of the abalone Haliotis midae has led to increased demand for freshly harvested kelp Ecklonia maxima. This study estimates the biomass of E. maxima available for harvesting, investigates the effects of harvesting on the... -
THE INVERTEBRATE FAUNA AND BIOTIC INDEX VALUE OF WATER QUALITY OF THE GREAT BERG RIVER, WESTERN CAPE
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: A. Coetzer --- , South AfricaThe invertebrate fauna was sampled at seven localities in the main stream of the Berg River in 1974. These results are discussed and compared with those of Harrison and Elsworth (1958). The results obtained were also used in applying the... -
SOME ASPECTS OF THE DISTRIBUTION OF REACTIVE PHOSPHORUS IN LAKE McILWAINE, RHODESIA: PHOSPHORUS LOADING AND ABIOTIC RESPONSES
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.A. Thornton --- Hydrobiology Research Unit, Zimbabwe-RhodesiaThis study was designed to investigate the apparent loss from the water column in Lake McIlwaine This study of significant quantities of reactive phosphorus. The Total Reactive Phosphorus mass-balance for the lake for 1977/78 was calculated, and both in situ... -
UNEXPECTED GROWTH OF PISTIA STRATIOTES IN SANYATI GORGE, LAKE KARIBA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: R.F. du Toit --- University Lake Kariba Research Station, ZimbabweDuring early 1984, the floating plant Pistia stratiotes grew unexpectedly and very rapidly in the Sanyati Gorge of Lake Kariba. Measurements of phosphorus and nitrogen in the surface waters revealed a pattern of nutrient concentrations along the gorge that could... -
DISSEMINATION OF AQUATIC INVERTEBRATES ON WINDBLOWN VEGETATION MATS IN LAKE CHILWA, MALAWI
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: M.A. Cantrell --- Lake Chilwa Co-ordinated Research Project, MalaŵiExceptionally high water levels in Lake Chilwa, Malaŵi, resulted in large tracts of the swamp vegetation becoming detached from the periphery of the lake. The open water became littered with large rafts of the bulrush, Typha domingeneis together with other... -
NUTRIENTS IN AFRICAN LAKE ECOSYSTEMS: DO WE KNOW ALL?
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.A. Thornton --- , South AfricaIt is nearly sixty years since the first studies were undertaken on the nutrient chemistry of African lakes. There have been numerous studies on the chemical composition of African waters in the intervening years. Yet as recently as five years... -
NUTRIENT CYCLING IN MARINE ECOSYSTEMS
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: P. Chapman --- , South AfricaThe overall cycles of nitrogen, phosphorus and silicon in the sea are described and compared. Data on the fluxes and rates of change between various pools of each nutrient are given, where available, and gaps in knowledge are pointed out... -
BEHAVIOUR OF A RADIO-TAGGED TILAPIA RENDALLI BOULENGER IN LAKE NGEZI, ZIMBABWE
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: CharlesH. Hocutt --- Horn Point Environmental Laboratories, United States of AmericaThe behaviour of a single specimen of Tilapia rendalli Boulenger was observed June through October 1986 in Lake Ngezi, Zimbabwe, by the use of a surgically-implanted radiotransmitter. The individual displayed a distinct homing response on two occasions, returning to the... -
TWENTY-FIVE YEARS OF TRICHOPTERA RESEARCH RELATING TO SOUTHERN AFRICA - A PERSONAL VIEW
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: K. M.F. Scott --- , South AfricaA brief account of earlier work on Trichoptera, reasons for choice of the Order, and resources built up, is followed by the story of twenty-five years of research, from 1963–1988. This includes aims in view, followed by the ‘state of... -
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... -
A LIMNOLOGICAL PROFILE OF THE UPPER OKAVANGO DELTA AT LOW WATER LEVEL
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: Rob C. Hart --- ,Selected limnological attributes of the Okavango Delta panhandle were measured during a brief summer survey of “open-water” habitats extending from the permanent mainstream channel, through contiguous off-channel lagoons and still backwaters, to seasonally isolated floodplain lagoon and temporary pool biotopes... -
THE EFFECT OF SEASON ON A BIOTIC WATER QUALITY INDEX: A CASE STUDY OF THE YELLOW JACKET AND MAZOWE RIVERS, ZIMBABWE.
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: B. Gratwicke --- , , ZimbabweThe effect of season on the South African Scoring System (SASS) biotic index for rapid assessment of water quality using benthic macroinvertebrates was investigated using the Yellow Jacket and Mazowe Rivers in Zimbabwe as a case study. Several impacts in... -
THE STATE OF KNOWLEDGE OF WATER QUALITY AND MAJOR BIOTIC COMPONENTS OF THE MHLATHUZE ESTUARY
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: D. P. Cyrus --- , , South AfricaThis note briefly introduces the concept of the Environmental Reserve of the New Water Act as well as the set of papers hereafter which deal with specific components of the ecology of the Mhlathuze Estuary. These were prepared for an... -
Forecasting volume and economic gains from intensive plantation management using different response curves
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: DavidB. South CurtisL. VanderSchaaf LarryD. TeeterProponents of intensive plantation management do not all use the same type of response curves when predicting future volume gains. As a result, some believe that continuously increasing the intensity of management will increase landowner profits and reduce the unit... -
Strategies for the selection of uncontaminated Eucalyptus explants for shoot multiplication in a temporary immersion system (RITA®) in a commercial laboratory
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: M. P. Watt M. Banasiak T. Nicholson B. McAlisterThe potential high yields of Eucalyptus shoot multiplication achieved with a temporary immersion culture system such as RITA® are compromised by losses caused by microbial contamination particularly bacteria, characteristic of the explants used to initiate the cultures. Disinfection of the... -
A root-bound index for evaluating planting stock quality of container-grown pines
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: D.B. South R. G. MitchellPot-binding can adversely affect the performance of container-grown stock. One factor that affects pot-binding is the size of the root system in relation to the size of the container. The aim of this study was to determine if an objective... -
A Comparison of the kraft pulp properties of P. elliottii and the P. elliottii x P. caribaea var. hondurensis hybrid grown in Queensland, Australia
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: T.K. Stanger --- Shaw Research Centre, South Africa M. J.P. Shaw --- Shaw Research Centre, South Africa R. Braunstein --- , South Africa D.G. Nikles --- , AustraliaThe interspecific hybrid between P. elliottii var. elliottii and P. caribaea var. hondurensis has recently been accepted for planting operationally as an alternative to P. elliottii by Sappi in South Africa. Some concerns have been expressed as to the suitability... -
Targeted spot vegetation management in Pinus radiata and P. elliottii plantations, Tsitsikamma, South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: S.F. Gous --- , New ZealandTowards the end of 1995, granular herbicides were introduced in South African forestry. Traditionally, weed control was done by manual slashing or herbicides were applied by knapsack sprayer. Targeted, spot herbicide application is more environmentally friendly, less expensive and easier... -
The state of knowledge of water quality and major biotic components of the Richards Bay coastal lakes
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DP CyrusThis note briefly introduces the concept of the Environmental Reserve of the new Water Act as well as the set of papers that follow that deal with specific components of the four coastal lakes at the lower end of the... -
Development and application of a fish-based Sensitivity-weighted Index of Biotic Integrity (SIBI) for use in the assessment of biotic integrity in the Klip River, Gauteng, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PJ Kotze GJ Steyn HH du Preez CJ KleynhansBiotic indices using fish assemblage characteristics have been applied with great success in river assessments around the world. Internationally the most commonly applied fish index is the Index of Biotic Integrity (IBI), whilst in South Africa the most commonly applied... -
The Namibian Scoring System (NASS) version 2 rapid bio-assessment method for rivers
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RW Palmer ED TaylorThis paper presents a rapid bio-assessment method for assessing the ecological condition of streams and rivers in Namibia. The method uses the composition and abundance of aquatic invertebrates, which are identified in the field, mostly to family level. The method... -
Bioassessment of the ecological integrity of river ecosystems using aquatic macroinvertebrates: an overview with a focus on South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DeanJ Ollis HelenF Dallas KarenJ Esler Charles BoucherAn overview is given of the bioassessment of the ecological integrity of river ecosystems using aquatic macroinvertebrates, focussing on the South African situation within a global context. Biotic indices and their use in aquatic bioassessment are covered, and comparative descriptions... -
The South African Scoring System (SASS) Version 5 Rapid Bioassessment Method for Rivers
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: C WS Dickens --- , South Africa PM Graham --- , South AfricaThe assessment of biota in rivers is a widely recognised means of determining the condition or ‘health’ of rivers. Benthic macroinvertebrates, in particular, are recognised as valuable organisms for bioassessments, due largely to their visibility to the naked eye, ease... -
Stream degradation, fish abundance and the potential viability of ornamental fisheries in south-western Cameroon
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RE Brummett --- , Cameroon C Cargill --- , Cameroon LM Lekunzé --- , Cameroon D Puddister --- , CameroonFifteen sites on nine second- and third-order streams in the Mount Cameroon area, with varying degrees of human disturbance, were sampled during wet and dry seasons over 21 months in 2003–2005 to estimate their potential for sustainable exploitation of ornamental... -
The influence of biotope and sampling method on the assessment of the invertebrate community structure in endorheic reed pans in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AR de Klerk --- Centre for Aquatic Research, Department of Zoology, South Africa V Wepener --- Centre for Aquatic Research, Department of Zoology, South AfricaReed pans in the Mpumalanga Lakes District, South Africa, support an abundant diversity and richness of aquatic macroinvertebrates in a variety of different biotopes which, in the case of depressional wetlands such as reed pans, are not well studied. This... -
Impact of abattoir waste on Woji Creek, Port Harcourt, Nigeria, using physicochemistry and macrozoobenthic diversity indices
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Zabbey --- Department of Animal Science and Fisheries, Nigeria I Etela --- Department of Animal Science and Fisheries, NigeriaThe impact of waste discharge from Zoo abattoir, Port Harcourt, on the environmental quality of Woji Creek was studied from April 2001 to March 2002 using physicochemistry and diversity of benthic animals as indicators. Priority physicochemical parameters (total suspended solid,... -
Activity and feeding of Dotilla fenestrata (Brachyura: Ocypodidae) in a warm, temperate South African estuary
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: C Bulcao --- Department of Zoology and Entomology, South Africa AN Hodgson --- Department of Zoology and Entomology, South AfricaThe activity of and consumption of organic material by the sand-bubbler crab Dotilla fenestrata was studied over neap and spring tides on a sheltered sand bank close to the mouth of the warm, temperate Kowie Estuary, South Africa. Crabs emerged... -
Comparative behavioural assessment of an established and a new tigerfish Hydrocynus vittatus population in two man-made lakes in the Limpopo River catchment, southern Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GC O'Brien --- Water Research Group (Ecology), Unit for Environmental Science and Management, South Africa JB Bulfin --- , Ireland A Husted --- Centre for Aquatic Research, South Africa NJ Smit --- Water Research Group (Ecology), Unit for Environmental Science and Management, South AfricaWith the continued establishment of man-made lakes within the natural distribution range of tigerfish in southern Africa, many artificial tigerfish populations now exist in the region. Very little of the behavioural ecology of these artificial but ecologically important populations is... -
Role of the sandprawn Callichirus kraussi as an ecosystem engineer in a South African temporarily open/closed estuary
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TO Henninger --- Department of Zoology and Entomology, South Africa PW Froneman --- Department of Zoology and Entomology, South AfricaThe role of the sandprawn Callichirus kraussi as an ecosystem engineer was experimentally assessed using caging experiments over a four-month period in 2010 in the temporarily open/closed Kasouga Estuary on the south-eastern coast of South Africa. The sandprawn contributed to... -
Temporal variations in the food habits of some fish species in Lake Nokoué, Benin
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: P Gnohossou --- Laboratoire d’Hydrobiologie et Aquaculture, Bénin P Lalèyè --- Laboratoire d’Hydrobiologie et Aquaculture, Bénin P Atachi --- Laboratoire d’Hydrobiologie et Aquaculture, Bénin G Magali --- Laboratoire EcoLab, UMR 5245 CNRS-UPS-INPT, France MC Villanueva --- Laboratoire d’Agronomie, Environnement et Écotoxicologie, France J Moreau --- Laboratoire d’Agronomie, Environnement et Écotoxicologie, FranceStomach contents of the 12 most abundant fish species in Lake Nokoué, Benin, collected between 2003 and 2005, were analysed for temporal variations in their diet. Several species showed seasonal shifts in their diets based on benthic prey abundance and... -
Antibiotic resistance among heterotrophic bacteria in Lagos Lagoon, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OA Agwu --- Department of Biological Oceanography, NigeriaAntibiotic-resistant bacteria in the aquatic environment are considered reservoirs for drug-resistant genes. Therefore, culturable heterotrophic bacteria isolated from Lagos Lagoon surface waters between 2011 and 2012 were screened for their susceptibility to 14 commonly used antibiotics belonging to six major... -
Kauri pine—a place in South African forestry?
Item type: Journal Article • Journal: South African Forestry Journal • Authors: B.V. Bredenkamp --- Natal Forestry Research Centre,The growth of two provenances of Agathis robusta and a mixture of A. microstachya and A. atropurpurea under Zululand conditions is compared with that of Pinus elliottii. Volume regression equations and estimates of bark thickness and stem taper are supplied. -
A Comparison of Three Methods of Wood Density Assessment in a Pinus elliottii Progeny Test
Item type: Journal Article • Journal: South African Forestry Journal • Authors: G. Gough --- Forest Research Centre, R.D. Barnes --- ,Three methods of determining wood density of 15 Pinus elliottii Engelm. families in a progeny test were compared. The first was based on a segment cut from a disc, the second on an 8 mm increment core and the third... -
The Effect of Nitroacta (Urea Formaldehyde) on the Growth and Development of Eucalyptus grandis and Pinus elliottii
Item type: Journal Article • Journal: South African Forestry Journal • Authors: R.F. Loxton D. G.M. DonaldA pot trial testing the effect of four rates of urea formaldehyde, applied in two forms, on the growth of Eucalyptus grandis and Pinus elliottii is described. It is concluded that the eucalypt responded linearly to this slow-acting nitrogen source... -
Can the End Products of Anaerobic Metabolism, Tauropine and D-lactate, Be Used As Metabolic Stress Indicators During Transport of Live South African Abalone Haliotis Midae?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S. O'Omolo G. Gäde P. A. Cook A. C. BrownThis study was undertaken to investigate whether the accumulation of end products of anaerobic metabolism can be used as an early indicator of deteriorating conditions during transport of live abalone Haliotis midae. A first series of experiments revealed that the... -
Aquarium Experiments Comparing the Feeding Behaviour of Rock Lobster Jasus Lalandii on Abalone and Sea Urchins at Two Sites on the West Coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R. F. Van Zyl S. Mayfield G. M. BranchPredation by the rock lobster Jasus lalandii is influential in regulating the composition of shallow-reef communities on the west coast of South Africa. Two previous and independent studies addressing this topic, but conducted 600 km apart (one in Cape Town... -
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... -
Interactions between Zostera capensis, Callianassa kraussi and Upogebia africana: deductions from field surveys in Langebaan Lagoon, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Siebert GM BranchCallianassid sandprawns and eelgrasses have been postulated to have mutually negative effects on each other. The relationship between Callianassa kraussi and Zostera capensis was investigated in Langebaan Lagoon on the west coast of South Africa by correlative field surveys. Seven... -
Interactions between Zostera capensis and Callianassa kraussi: influences on community composition of eelgrass beds and sandflats
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: T Siebert GM BranchEelgrass beds have been postulated to support different faunal communities from unvegetated sandflats, in part because of the stabilisation of sediments in eelgrass beds and their destabilisation in sandflats due to bioturbation. More specifically, eelgrass beds have been hypothesised to... -
Exploring basic biochemical constituents in the body tissues of South African abalone Haliotis midae reared in shore-based mariculture systems
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Laas --- Medical Research Council of South Africa, South Africa A Vosloo --- School of Environmental Science and Development, South AfricaThe study quantifies the effects of season, age and feeding regime on glucose, glycogen, proteins and lipids in abalone Haliotis midae tissues, and to assess water loss during simulated live export. Abalone of two age classes, younger (∼30 months old)... -
A spatial- and age-structured assessment model to estimate the impact of illegal fishing and ecosystem change on the South African abalone Haliotis midae resource
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ÉE Plagányi --- Department of Mathematics and Applied Mathematics, South Africa DS Butterworth --- Department of Mathematics and Applied Mathematics, South AfricaThe management of abalone stocks worldwide is complicated by factors such as illegal fishing combined with the difficulties of assessing a sedentary (but not immobile) resource that is often patchily distributed. The South African abalone Haliotis midae fishery is faced... -
A microsatellite panel for triploid verification in the abalone Haliotis midae
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Slabbert --- Aquaculture Division, Department of Genetics, South Africa N Prins --- Aquaculture Division, Department of Genetics, South Africa D Brink --- Aquaculture Division, Department of Genetics, South AfricaA method for ploidy verification of triploid and diploid Haliotis midae was developed using molecular microsatellite markers. In all, 30 microsatellite loci were tested in control populations. A final micro satellite multiplex consisting of seven markers were optimised and a... -
Ecological distribution of the shrimp Nematopalaemon schmitti (Crustacea: Decapoda: Caridea) in three bays on the south-eastern coast of Brazil
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AC Almeida --- NEBECC (Crustacean Biology, Ecology and Culture Study Group), Departamento de Zoologia, Brazil A Fransozo --- NEBECC (Crustacean Biology, Ecology and Culture Study Group), Departamento de Zoologia, Brazil GM Teixeira --- NEBECC (Crustacean Biology, Ecology and Culture Study Group), Departamento de Zoologia, Brazil KAN Hiroki --- NEBECC (Crustacean Biology, Ecology and Culture Study Group), Departamento de Zoologia, Brazil M Furlan --- NEBECC (Crustacean Biology, Ecology and Culture Study Group), Departamento de Zoologia, Brazil G Bertini --- , BrazilThe relationships between the spatial and temporal variations in the abundance of the shrimp Nematopalaemon schmitti and water temperature, salinity, and texture and organic-matter content of the sediment, were analysed in Ubatumirim, Ubatuba and Mar Virado bays on the northern... -
A hard-knock life: the foraging ecology of Cape cormorants amidst shifting prey resources and industrial fishing pressure
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MH Hamann --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa D Grémillet --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa PG Ryan --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South Africa F Bonadonna --- , France CD van der Lingen --- Department of Agriculture, Forestry and Fisheries, South Africa L Pichegru --- DST/NRF Centre of Excellence at the Percy FitzPatrick Institute of African Ornithology, South AfricaOnce one of the most numerous seabirds of the Benguela upwelling system, the population of Cape cormorants Phalacrocorax capensis has decreased by 60% in the past three decades and the species is listed as Near Threatened. Declines in prey availability... -
Innovative processes and products involving marine organisms in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: J J Bolton --- Department of Biological Sciences, South Africa M T Davies-Coleman --- Department of Chemistry, South Africa V E Coyne --- Department of Molecular and Cell Biology, South AfricaThe SEAChange programme, instituted in 2007 under the auspices of the South African Network for Coastal and Oceanic Research (SANCOR), included four interdependent research themes, one of which was Marine Biotechnology. Marine biotechnology is a discipline that involves both basic... -
The effect of bottom heat on rooting Pinus patula and Pinus elliottii x Pinus caribaea stem cuttings in South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R.G. Mitchell --- Sappi Forests Research, South AfricaFive trials, testing the effect ofbottom heat on rooting, were set between January 1995 and December 1996 on P. patula and P. elliottii x P. caribaea cuttings as a method of improving root strike. In four out of five trials... -
Effect of planting depth on growth of open-rooted Pinus elliottii and Pinus taeda seedlings in the United States
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Curtis L. VanderSchaaf --- School of Forestry and Wildlife Sciences, and Alabama Agricultural Experiment Station, USA David B. South --- School of Forestry and Wildlife Sciences, and Alabama Agricultural Experiment Station, USAThree studies in the Coastal Plain of Georgia were remeasured 7 or 8 years after planting to determine the effects of planting depth on field performance of open-rooted seedlings [root-collar diameter (RCD) ≤ 5 mm]. Average planting depth (i.e, shoot... -
A review on the effects of donor maturation on rooting and field performance of conifer cuttings
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R.G Mitchell --- Sappi Forests Research, J. Zwolinski --- Forestry Programme, N.B. Jones --- Sappi Forests Research,The maturation and ageing effects of parent or donor plants have been reported to have both positive and negative influences on the performance of rooted cuttings. A general decline in rooting ability, root quality and speed of rooting in the... -
The flexural properties of young Pinus elliottii x Pinus caribaea var. hondurensis timber from the Southern Cape and their prediction from acoustic measurements
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: CB Wessels --- Department of Forest and Wood Science, South Africa GP Dowse --- Department of Forest and Wood Science, South Africa HC Smit --- Department of Forest and Wood Science, South AfricaThe objectives of this study were to determine the bending strength and stiffness properties of young Pinus elliottii x P. caribaea var. hondurensis timber from the Southern Cape, South Africa, and to evaluate the predictability of these properties from acoustic... -
Tolerance of Pinus patula full-sib families to Fusarium circinatum in a greenhouse study
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: RG Mitchell --- , South Africa MJ Wingfield --- Forestry and Agricultural Biotechnology Institute, South Africa ET Steenkamp --- Forestry and Agricultural Biotechnology Institute, South Africa TA Coutinho --- Forestry and Agricultural Biotechnology Institute, South AfricaThe pitch canker fungus, Fusarium circinatum, has caused large-scale mortality of young Pinus patula Schiede and Deppe ex Schltdl. and Cham. seedlings in nurseries in South Africa since 1990. Diseased seedlings have been inadvertently carried to the field, which in... -
Growth models based on radial increment observations for eight pine species in Angola
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Cristobal Delgado-Matas --- Faculty of Agrarian Sciences, Angola Timo Pukkala --- School of Forest Sciences, FinlandGrowth models for the Central Highlands of Angola were developed in this study for Pinus pseudostrobus Lindl., P. kesiya Royle ex Gordon, P. devoniana Lindl., P. chiapensis (Martinez) Andresen, P. elliottii Engelm., P. greggii Engelm. ex Parl., P. montezumae Lamb... -
The effect of biotope-specific sampling for aquatic macroinvertebrates on reference site classification and the identification of environmental predictors in Mpumalanga, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HelenF DallasThe classification of reference sites based on macroinvertebrate assemblages sampled in different aquatic biotopes in Mpumalanga, South Africa, was examined. Environmental variables that best predicted group membership for each of four classifications (stones, vegetation, sand and these three biotopes combined)... -
Chromosome number of the South African abalone Haliotis midae
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M van der Merwe R Roodt-WildingDespite the widespread distribution of the genus Haliotis, chromosome numbers are only known for a small subset of species. In South Africa, no chromosome studies have been conducted on any of the five species occurring in the region. This study... -
Growth of post-weaning abalone Haliotis midae fed commercially available formulated feeds supplemented with fresh wild seaweed
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TS Dlaza GW Maneveldt C ViljoenThe effect of five formulated feeds supplemented with fresh wild seaweed on the growth of post-weaning juvenile abalone Haliotis midae (6–20 mm shell length) was investigated by means of a growth trial at a commercial abalone farm over a period... -
A multidisciplinary study of a small, temporarily open/closed South African estuary, with particular emphasis on the influence of mouth state on the ecology of the system
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AK Whitfield JB Adams GC Bate K Bezuidenhout TG Bornman PD Cowley PW Froneman PT Gama NC James B Mackenzie T Riddin GC Snow NA Strydom S Taljaard AI Terörde AK Theron JK Turpie L van Niekerk PD Vorwerk TH WooldridgeIn 2005/2006 a multidisciplinary research programme that included studies on the hydrodynamics, sediment dynamics, macronutrients, microalgae, macrophytes, zoobenthos, hyperbenthos, zooplankton, ichthyoplankton, fish and birds of the temporarily open/closed East Kleinemonde Estuary was conducted. Particular attention was given to the responses... -
Towards an abalone weaning diet: evaluation of agar-bound fishmeal and spirulina as dietary ingredients
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: I Ismail CLW Jones PJ Britz AJ EsterhuizenSurvival of post-settlement abalone when 'weaning' them from diatoms onto macroalgae/artificial feed remains unpredictable for farmers. It is hypothesised that spirulina algae, which are high in protein, may be a suitable feed ingredient for weaning abalone. Over a period of... -
Effect of weeding and fertilisation on bark thickness and stem form of seven pine species on a low-elevation site at Usutu, Swaziland
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: JW Crous --- , South Africa AR Morris --- , South Africa S Khoza --- , SwazilandOn a low-elevation site at Usutu alternative species to Pinus elliottii, the species recommended in the past for such sites, were planted to evaluate growth differences. At rotation age, destructive stem profile analyses were conducted on some of the trees... -
Forest and fibre genomics: biotechnology tools for applied tree improvement
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: A Myburg J Bradfield E Cowley N Creux M de Castro T-L Hatherell M Mphahlele M O'Neill M Ranik L Solomon M Victor H Zhou G Galloway T Horsley N Jones T Stanger A Bayley N Edwards B JanseEucalyptus tree breeders and geneticists stand to benefit tremendously from a recently announced effort to produce the first complete genome sequence for a eucalypt tree by 2010. A milestone for eucalypt research, the project will facilitate the development of new... -
Lipid rescue: the use of lipid emulsions to treat local anaesthetic toxicity
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: CJ Kruger --- Department of Anaesthesiology and Critical Care, South Africa PC Marwick --- Department of Anaesthesiology and Critical Care, South Africa AI Levin --- Department of Anaesthesiology and Critical Care, South AfricaDespite increasing safety of regional anaesthesia, the growth in the popularity therof implies that local anaesthetic toxicity will occur occasionally. Local anaesthetic cardiotoxicity, even when using “safer” modern local anaesthetics, is notoriously resistant to standard resuscitation. The aim of this... -
Amniotic fluid embolism in an HIV-positive parturient
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: PR Penfold --- Department of Anaesthesia, South Africa C Corbett --- Department of Anaesthesia, South Africa L Bortolan --- Department of Anaesthesia, South AfricaWe present a case of a parturient infected with human immunodeficiency virus, who developed amniotic fluid embolism during the delivery of her twins by elective Caesarean section. Our management and the available literature are briefly discussed, and consideration is given... -
Cervical epidural anaesthesia for shoulder arthroscopy and effective postoperative physiotherapy for a frozen shoulder: a case study
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: K Marodkar --- Department of Anaesthesiology, India S Deshmukh --- Department of Anaesthesiology, IndiaShoulder arthroscopy is used to treat various diseases of the shoulder, including refractory adhesive capsulitis. Effective postoperative pain relief is critical for these patients, as the success of surgery largely depends on early and regular physiotherapy. Although traditionally, various methods... -
Paraffin poisoning in children: What can we do differently?
Item type: Journal Article • Journal: South African Family Practice • Authors: N Malangu --- National School of Public Health, University of Limpopo (Medunsa Campus), South Africa WJ Du Plooy --- Department of Pharmacology and Therapeutics, South Africa GA Ogunbanjo --- Department of Family Medicine and Primary Health Care, South AfricaBackground: The purpose of this study was to describe the occurrence, health cost and management of paraffin poisoning in a rural South African hospital. -
Strategies for the Prevention and Containment of Antibiotic Resistance
Item type: Journal Article • Journal: South African Family Practice • Authors: SY Essack --- School of Pharmacy and Pharmacology, University of Kwazulu-Natal,Antibiotic resistance may emerge by antibiotic selection pressure but is perpetuated by diverse risk factors and maintained within environments as a result of poor infection control. Population-specific drug pharmacokinetics and pharmacodynamics also play a role. The WHO, US, UK and... -
Unveiling the physical therapies
Item type: Journal Article • Journal: South African Family Practice • Authors: L Alford --- School of Allied Health Professions, University of East Anglia, United KingdomEither through referral by a medical practitioner or self-referral many patients with musculoskeletal problems receive some form of physical therapy. There are several highly trained professional groups who deliver this treatment. Due to lack of regulation, however, there are also... -
Superficial skin infections and the use of topical and systemic antibiotics in general practice
Item type: Journal Article • Journal: South African Family Practice • Authors: MH Motswaledi --- Department of Dermatology,Superficial bacterial infections of the skin are very common. With the increasing burden of human immunodeficiency virus (HIV), this is likely to worsen. Examples of such infections include impetigo, erysipelas, cellulitis, ecthyma, furuncles, carbuncles and subcutaneous abscesses. Common causative organisms... -
Strategies to improve blood pressure control and cardiovascular outcomes in hypertensive patients
Item type: Journal Article • Journal: South African Family Practice • Authors: E Van der Merwe A CarboniHypertension is a major contributor to cardiovascular morbidity and mortality. However, blood pressure control in clinical practice still falls short of treatment recommendations. The reasons for this are manifold, and patient non-compliance with medication has been identified as one important... -
Angiotensin II type 1 receptor antagonists and their combinations in the treatment of hypertension
Item type: Journal Article • Journal: South African Family Practice • Authors: JA Ker --- Department of Internal Medicine, -
The use of angiotensin-converting enzyme inhibitors in general medicine
Item type: Journal Article • Journal: South African Family Practice • Authors: MLI Mashitisho --- Department of Internal Medicine,Angiotensin-converting enzyme (ACE) inhibitors are a class of drugs commonly used in the management of hypertension, congestive heart failure, cerebrovascular disease, stable coronary heart disease and diabetes-associated nephropathy. ACE inhibitors are divided into three classes, namely sulphydryl-containing ACE inhibitors structurally... -
The use of prebiotics and probiotics in infant formula
Item type: Journal Article • Journal: South African Family Practice • Authors: TS Ackerberg --- Nutrition Information Centre, IL Labuschagne --- Nutrition Information Centre, MJ Lombard --- Nutrition Information Centre,Gastrointestinal flora influences health, but the composition of flora can be changed with prebiotics or probiotics. The addition of probiotics to powdered infant formula has not been demonstrated to be harmful to healthy term infants. However, evidence of clinical efficacy... -
Acidified infant formula explained
Item type: Journal Article • Journal: South African Family Practice • Authors: IL Labuschagne --- Nutrition Information Centre, E van Niekerk --- Nutrition Information Centre, MJ Lombard --- Nutrition Information Centre,The development of effective methods to prevent acute gastroenteritis is an important goal for infant health. Exclusive breastfeeding and postponement of complementary foods until the age of six months is recommended for healthy infants. However, at times, infant formula is... -
The first record of Tardigrada from Zambia, with a description of Doryphoribius niedbalai n.sp. (Eutardigrada: Isohypsibiidae, the evelinae group)
Item type: Journal Article • Journal: African Zoology • Authors: Krzysztof Zawierucha --- Department of Animal Taxonomy and Ecology, Faculty of Biology, Poland Łukasz Michalczyk --- Department of Entomology, Poland Łukasz Kaczmarek --- Department of Animal Taxonomy and Ecology, Faculty of Biology, PolandIn three mixed samples (mosses and leaf litter) collected in Zambia (southern Africa), forty-three specimens and six eggs of eutardigrades were found. Among them, 29 specimens belonged to a new species of the family Isohypsibiidae, Doryphoribius niedbalai n.sp. The new... -
Solving the challenges of monitoring mobile populations: insights from studies of waterbirds in southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Hannah L Thomas --- Percy FitzPatrick Institute, DST–NRF Centre of Excellence, South Africa Philip AR Hockey --- Percy FitzPatrick Institute, DST–NRF Centre of Excellence, South Africa Graeme S Cumming --- Percy FitzPatrick Institute, DST–NRF Centre of Excellence, South AfricaHighly mobile species are difficult to monitor. It is often unclear from abundance estimates whether a population is genuinely declining or simply elsewhere. If the spatial and temporal scales of monitoring are inadequate, the data will only be useful if... -
Aquatic macroinvertebrate responses to pollution of the Boesmanspruit river system above Carolina, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RB Tate --- Digby Wells Environmental, South Africa A Husted --- Digby Wells Environmental, South AfricaThe upper Boesmanspruit river system received much attention in 2012 when a pollution event in January rendered the drinking water of the town of Carolina non-potable. The responses of aquatic macroinvertebrate assemblages in the upper Boesmanspruit system to that event... -
A framework for caring in physiotherapy education and practice
Item type: Journal Article • Journal: South African Family Practice • Authors: Serela Ramklass --- School of Clinical Medicine, South AfricaBackground: Caring is central to the practice of physiotherapy. However, explicit components of caring required for South African physiotherapy practice within a model of primary healthcare are not detailed. -
Original research: obesity prevalence and metabolic differences between obese and non-obese school adolescents in south-western Nigeria
Item type: Journal Article • Journal: South African Family Practice • Authors: Bridget Omisore --- Department of Family Medicine, Nigeria Akinlolu Omisore --- Department of Community Medicine, Nigeria Emmanuel Abioye-Kuteyi --- Department of Community Health, NigeriaBackground: Adolescent obesity is increasingly more common in low- and middle-income countries like Nigeria. Obesity has been associated with metabolic derangement in adolescents in developed countries. This study compared the metabolic parameters in obese and non-obese adolescents in a developing... -
Antibiotic use in Namibia: prescriber practices for common community infections
Item type: Journal Article • Journal: South African Family Practice • Authors: Dawn D Pereko --- Medicine Usage in South Africa, Faculty of Health Sciences, School of Pharmacy, South Africa Martie S Lubbe --- Medicine Usage in South Africa, Faculty of Health Sciences, School of Pharmacy, South Africa Sabiha Y Essack --- School of Health Sciences, South AfricaBackground: Despite the threat of resistance, the use of antibiotics globally is high and continues to increase. Much of this use is attributed to overprescribing by physicians. The objective of this study was to assess doctors’ management of common community-acquired... -
An observational study on factors influencing antibiotic use in chronic obstructive pulmonary disease at Universitas Academic Hospital, Bloemfontein
Item type: Journal Article • Journal: South African Family Practice • Authors: Y Dreyer --- Faculty of Health Sciences, School of Medicine, South Africa A Rossouw --- Faculty of Health Sciences, School of Medicine, South Africa H Schoeman --- Faculty of Health Sciences, School of Medicine, South Africa A Van der Nest --- Faculty of Health Sciences, School of Medicine, South Africa C Van Zyl --- Faculty of Health Sciences, School of Medicine, South Africa M Prins --- Faculty of Health Sciences, Pulmonology Division, Department of Internal Medicine, South Africa SD Maasdorp --- Faculty of Health Sciences, Pulmonology Division, Department of Internal Medicine, South Africa G Joubert --- Faculty of Health Sciences, Department of Biostatistics, South AfricaBackground: Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) are often precipitated by excessive airway inflammation caused by viral or bacterial infections. Current guidelines suggest prescribing antibiotics to patients with AECOPD and purulent sputum production, but this may lead to... -
Greeting rituals as everyday management of differences among RasTafari groups in Stellenbosch
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Lennox Olivier --- Sociology and Social Anthropology, Stellenbosch University,Greeting is a meaningful part of everyday interaction among individuals from different RasTafari groups in Stellenbosch, since it contributes to the construction and maintenance of the identity and boundaries of groups. Drawing upon extensive participant observation, I first look at... -
HER-2 positive breast cancer and trastuzumab: lessons learnt by heart
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: K Outhoff --- Department of Pharmacology, South AfricaWomen treated with trastuzumab have an increased risk for developing cardiac problems, particularly if they receive prior or concurrent anthracyclines. Left ventricular dysfunction associated with trastuzumab treatment may progress to severe New York Heart Association (NYHA) class III/IV heart failure... -
Radiation therapy for cervix carcinoma: the benefits and constraints in sub-Saharan Africa
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: H M Simonds --- Division of Radiation Oncology, Tygerberg Hospital, South AfricaCervix carcinoma is one of the most prevalent cancers in women in Africa. Primary and secondary prevention measures in place are currently not sufficient to prevent further cases. Radiotherapy is the main therapeutic option as most cases present at a... -
Long-term complications of pelvic radiotherapy
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: H Simonds --- Division of Radiation Oncology Tygerberg Hospital/University of Stellenbosch,Complications following pelvic radiation are frequently under-reported and inadequately addressed. This overview examines the nature and the intensity of complications encountered by cancer survivors; it focuses specifically on gastrointestinal and vaginal complications, and the problems surrounding the methods of recording... -
A pilot study of two radiation fractionation regimens in patients with cancer of the cervix, who were HIV positive and not on antiretroviral therapy
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: A M Hocepied --- Department of Radiation Oncology, H Westerink --- Department of Radiation Oncology, R Lakier --- Department of Radiation Oncology,The Department of Radiation Oncology at the previously named Pretoria Academic Hospital (now the Steve Biko Hospital) undertook a pilot study between 2000 and 2001 of 20 patients who were human immunodeficiency virus-positive with locally advanced cancer of the cervix... -
Pharmacological options for the protection of ovarian function in patients undergoing chemotherapy
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: MH Botha --- Unit for Gynaecological Oncology, Department of Obstetrics and Gynaecology, Faculty of Medicine and Health Sciences,Chemotherapy, particularly alkylating agents, can be toxic to germ cells, and may lead to treatment amenorrhoea in young women. The age at which chemotherapy is administered is a strong predictor of subsequent premature ovarian failure, with older patients being at... -
Retrospective analysis of patients with cancer of the cervix attending a radiotherapy outpatient department: experience from a university-based hospital in eastern Uttar Pradesh, India
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: M Nandi --- Department of Radiation Oncology, India A Mandal --- Department of Radiotherapy and Radiation Medicine, Institute of Medical Sciences, India AK Asthana --- Radiotherapy and Radiation Medicine, Institute of Medical Sciences, IndiaObjective: A retrospective analysis of all patients with cancer of the cervix attending a radiotherapy outpatients department in a single unit from January 2005 to December 2006 was carried out to study their epidemiology, stage and status of presentation, compliance... -
The impact of HIV infection on women receiving radiation for cervical cancer
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Mapule Mangena --- Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology, Leon Snyman --- Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology, Greta Dreyer --- Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology, Sheynaz Bassa --- Department of Radiation Oncology, Piet Becker --- Research Office, Faculty of Health Sciences,Background: The objective of the study was to compare patient characteristics, treatment toxicity and interruptions, and survival in human immunodeficiency virus (HIV)-positive and HIV-negative cervical cancer patients receiving radiation as primary or adjuvant treatment. -
Cobalt-60 is a logical, economical and comparable alternative to Ir-192: analysis and institutional experience from western India
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Upendra Nandwana --- Radiotherapy Department, India Narendra Rathore --- Radiotherapy Department, India Sunnia Gupta --- Radiotherapy Department, India Arvind Shukla --- Radiotherapy Department, India Satish Kumar --- Radiotherapy Department, India Kiran Intodia --- Radiotherapy Department, India Poonam Chand Bana --- Radiotherapy Department, India Abhay Jain --- Radiotherapy Department, IndiaObjectives: The objective of the study was to examine the dosimetry of intracavitary radiotherapy (ICRT) in carcinoma of the cervix using cobalt-60 (Co-60) as source of ICRT, and as an alternative to iridium-192 (Ir-192). -
A multi-centre, phase IV study to evaluate the steady-state plasma concentration and serum bactericidal activity of a generic teicoplanin preparation
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Oppel Greeff --- Department of Pharmacology, School of Medicine, Faculty of Health Sciences, South Africa Jacob van Tonder --- Department of Pharmacology, School of Medicine, Faculty of Health Sciences, South Africa Duncan Cromarty --- Department of Pharmacology, School of Medicine, Faculty of Health Sciences, South Africa Warren Lowman --- Department of Clinical Microbiology and Infectious Diseases, School of Pathology, South Africa Piet Becker --- Faculty of Health Sciences, South Africa Margo Nell --- Department of Pharmacology, School of Medicine, Faculty of Health Sciences, South AfricaIntroduction: Teicoplanin is an effective treatment option against methicillin-resistant, Gram-positive bacteria, like Staphylococcus aureus. It is a glycopeptide antibiotic, produced through microbial fermentation, a process resulting in variations in the N-acyl side chain. Concerns that these variations may affect the... -
Public knowledge, attitudes and behaviour towards antibiotic usage in Windhoek, Namibia
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Dawn D Pereko --- School of Pharmacy, South Africa Martie S Lubbe --- School of Pharmacy, South Africa Sabiha Y Essack --- School of Health Sciences, South AfricaBackground: The development of antibiotic resistance is a globally recognised human health threat. Overuse of antibiotics is a major contributory factor to the development of resistance. As end users, the public play a role in antibiotic use and the development... -
Dactylobiotus luci, a new freshwater tardigrade (Eutardigrada: Macrobiotidae) from theRwenzori Mountains, Uganda
Item type: Journal Article • Journal: African Zoology • Authors: Łukasz Kaczmarek --- Department of Animal Taxonomy and Ecology, Poland Łukasz Michalczyk --- Centre for Ecology, Evolution and Conservation, School of Biological Sciences, U.K. Hilde Eggermont --- Department of Biology, Limnology Unit, BelgiumA new freshwater eutardigrade, Dactylobiotus luci is described from a permanent marsh pool (Zaphania’s Pool) at 4225 m elevation in the Alpine zone of the Rwenzori Mountains, Uganda. The new species is most similar to D. dervizi Biserov, 1998 in... -
Symbionts of comatulid crinoids in False Bay, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Tessa N. Hempson --- Marine Biology Research Centre and Department of Zoology, South Africa Charles L. Griffiths --- Marine Biology Research Centre and Department of Zoology, South AfricaThis study documents the fauna associated with two common comatulid crinoid species, Comanthus wahlbergi and Tropiometra carinata, in False Bay, South Africa, and describes the patterns of infestation of obligate associate species. A total of 11 invertebrate species was found... -
Family variation in diameter growth and acoustic velocity in three 5‑year‑old South African‑grown Pinus elliottii×Pinus caribaea progeny trials established on three diverse sites
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Francois S Malan --- Research Division, South AfricaThis paper discusses family differences in the stiffness of young Pinus elliottii×P. caribaea wood and how these differences relate to differences in growth rate and altitude. Trees for measurement were obtained from three 5‑year‑old progeny trials established at three diverse... -
Bioaccumulation and distribution of organochlorine residues across the food web in Lagos Lagoon, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: B Akinsanya --- Department of Zoology, Nigeria R Alani --- Department of Chemistry, Nigeria UD Ukwa --- Department of Zoology, Nigeria F Bamidele --- Department of Zoology, Nigeria JK Saliu --- Department of Zoology, NigeriaEighteen organochlorine pesticide (OCP) residues were measured in the water, sediment, plankton, benthic invertebrates and fish in various sections of the Lagos Lagoon in 2014 to investigate their bioaccumulation and distribution in the food web. The analysis was done using... -
Biocatalytic conversion of inulin and sucrose into short chain oligosaccharides for potential pharmaceutical applications
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Taurai Mutanda --- Discipline of Microbiology, School of Life Sciences, South Africa Brendan S. Wilhelmi --- Department of Biochemistry and Microbiology, Rhodes, South Africa Chris G. Whiteley --- Department of Biochemistry and Microbiology, Rhodes, South AfricaThe production of fructooligosaccharides (FOS) and inulooligosaccharides (IOS) of varying degrees of polymerization (DP) was optimized by orthogonal experimental designs using central composite design (CCD) and response surface methodology (RSM). The FOS produced were quantified and maximal GF2, GF3 and... -
Lymphovascular space invasion in early-stage endometrial cancer: adjuvant treatment and patterns of recurrence
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Esther van Barneveld --- Department of Obstetrics and Gynaecology, The Netherlands David G Allen --- Department of Obstetrics and Gynaecology, Australia Ruud LM Bekkers --- Department of Obstetrics and Gynaecology, The Netherlands Peter T Grant --- Department of Obstetrics and Gynaecology, AustraliaBackground: In early-stage endometrial cancer, lymphovascular space invasion (LVSI) is an independent predictor of relapse of disease and poorer survival. Nevertheless, adjuvant treatment for LVSI-positive patients is variable. -
Growth of infants born to HIV-positive mothers fed a whey-adapted acidified starter formula with prebiotics and nucleotides
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Pa Cooper --- Department of Paediatrics, South Africa Kd Bolton --- Department of Paediatrics, South Africa M. Mokhachane --- Department of Paediatrics, South Africa Sc Velaphi --- Department of Paediatrics, South Africa Rm Mphahlele --- Department of Paediatrics, South Africa Hn Bomela --- Department of Paediatrics, South Africa L. Monaheng --- Department of Paediatrics, South Africa P. Roux --- School of Child and Adolescent Health, South Africa E. Haschke-Becher --- Central Laboratory, Department of Neurology, AustriaObjectives: The objectives of this study were to evaluate whether infants born to known HIV-positive mothers, but who were not themselves infected with HIV and who were fed a chemically acidified starter formula with prebiotics with or without nucleotides during... -
Probiotics, with special emphasis on their role in the management of irritable bowel syndrome
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: C Stevenson --- Division of Human Nutrition, South Africa R Blaauw --- Division of Human Nutrition, South AfricaProbiotics are live microorganisms, and when administered in adequate amounts, bestow beneficial effects on the host. The therapeutic and preventative application of probiotics in several disorders is receiving increasing attention, and this is especially true when gastrointestinal microbiota is thought... -
Characteristics and outcome of surgically treated acromegaly patients attending an endocrinology clinic at a tertiary referral centre in Durban, South Africa over a period of 10 years
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Abdurraouf Masaud Elbueishi --- Department of Diabetes and Endocrinology, South Africa Fraser J Pirie --- Department of Diabetes and Endocrinology, South Africa Ayesha A Motala --- Department of Diabetes and Endocrinology, South AfricaBackground: The mode of presentation, clinical, radiologic and laboratory characteristics of patients with acromegaly and the outcome following various modalities of treatment are not well documented in South Africa. -
Acute toxicity in cervical cancer HIV-positive vs. HIV-negative patients treated by radical chemo-radiation in Zambia
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Sibusiso Mdletshe --- Medical Imaging and Radiation Sciences Department, South Africa Harry Munkupa --- Oncology Center, Zambia Kennedy Lishimpi --- Oncology Center, ZambiaBackground: The current standard of radical treatment for patients with cancer of the cervix is combination therapy in the form of radiotherapy with chemotherapy. Generally the same treatment protocol is applied to HIV-positive and HIV-negative patients. However, HIV-positive patients with... -
An unusual case of repeated venous air embolism during awake bilateral deep brain stimulation surgery
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: WMN Wan Hassan --- Department of Anaesthesiology and Intensive Care, School of Medical Sciences, Malaysia BT Yeap --- Department of Anaesthesiology and Intensive Care, School of Medical Sciences, Malaysia L Ab Mukmin --- Department of Anaesthesiology and Intensive Care, School of Medical Sciences, Malaysia ARI Ghani --- Department of Neurosciences, School of Medical Sciences, Malaysia RH Mohd Zaini --- Department of Anaesthesiology and Intensive Care, School of Medical Sciences, MalaysiaVenous air embolism (VAE) is the entrainment of air either from a surgical site or from the environment into the venous or arterial vasculature, which can subsequently cause systemic effects. Many cases are subclinical but large volume and high rate... -
Macroinvertebrates as bioindicators of water quality in the Mkondoa River, Tanzania, in an agricultural area
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MJ Shimba --- Department of Biotechnology and Bioinformatics, FE Jonah --- Department of Fisheries and Aquatic Sciences, GhanaThe suitability of using macroinvertebrates as bioindicators of stream water quality was tested in the Mkondoa River in an agricultural area at Kilosa, using the rapid bioassessment protocol. The family biotic index (FBI) showed marked variation in water quality along... -
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... -
Freeze injury to roots of southern pine seedlings in the USA
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: DB SouthRoots of pine seedlings can be injured by freezing temperatures and the degree of injury is affected by genotype and stage of acclimation. Local sources of Pinus echinata and P. virginiana that were acclimated by cold temperatures were relatively freeze... -
Effects of kelp Ecklonia maxima inclusion in formulated feed on the growth, feed utilisation and gut microbiota of South African abalone Haliotis midae
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Nel --- Department of Ichthyology and Fisheries Science, South Africa BI Pletschke --- Department of Biochemistry and Microbiology, South Africa CLW Jones --- Department of Ichthyology and Fisheries Science, South Africa J Kemp --- Department of Ichthyology and Fisheries Science, South Africa G Robinson --- Department of Ichthyology and Fisheries Science, South Africa PJ Britz --- Department of Ichthyology and Fisheries Science, South AfricaThe effect of kelp Ecklonia maxima inclusion in formulated feeds on abalone growth and gut bacterial communities has not been previously investigated in South Africa. An eight-month on-farm growth trial was conducted with sub-adult Haliotis midae (∼43 mm shell length)... -
Investigating the effects of Lactobacillus casei on some biochemical parameters in diabetic mice
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: Feizollah Asgharzadeh --- Faculty of Medicine, Department of Clinical Biochemistry and Laboratory Sciences, Iran Asghar Tanomand --- Department of Microbiology, Iran Mohammad Reza Ashoori --- Faculty of Medicine, Department of Clinical Biochemistry and Laboratory Sciences, Iran Ali Asgharzadeh --- Tehran Institute of Psychiatry, Iran Nosratollah Zarghami --- Faculty of Medicine, Department of Clinical Biochemistry and Laboratory Sciences, IranAims: Diabetes mellitus is a metabolic disorder characterised by inadequate pancreatic insulin secretion or the insulin present being unable to perform its function properly. Consistent with the beneficial effects of probiotics and their ability to lower glucose levels, an impact... -
Reflection on the first five years of South Africa’s Acoustic Tracking Array Platform (ATAP): status, challenges and opportunities
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa RH Bennett --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South Africa TS Murray --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaThe Acoustic Tracking Array Platform (ATAP) is a marine science programme that monitors the movements and migrations of inshore marine animals along the South African coastline. Acoustically tagged animals are monitored by an expanded network of approximately 100 automated data-logging... -
‘Treating a patient should be approached in a holistic manner’: collaboration of doctors and physiotherapists in the rehabilitation of people living with HIV
Item type: Journal Article • Journal: South African Family Practice • Authors: Stacy Maddocks --- Physiotherapy, School of Health Sciences, South Africa Verusia Chetty --- Physiotherapy, School of Health Sciences, South Africa Arishna Maghoo --- Physiotherapy, School of Health Sciences, South Africa Nkuleleko Mhlongo --- Physiotherapy, School of Health Sciences, South Africa Nsindiso Mthembu --- Physiotherapy, School of Health Sciences, South Africa Sinempilo Khanyile --- Physiotherapy, School of Health Sciences, South Africa Siphokazi Chiliza --- Physiotherapy, School of Health Sciences, South Africa Tyrel Munsamy --- Physiotherapy, School of Health Sciences, South Africa Zanele Gamede --- Physiotherapy, School of Health Sciences, South Africa Slindile Mazibukoc --- Physiotherapy, School of Health Sciences, South AfricaPeople living with HIV facing impairments and subsequent disabilities related to the virus and its treatment require involvement of a collaborative team of healthcare professionals to ensure reintegration into daily life and community living. Healthcare teams responsible for this care... -
Retrospective analysis of radiotherapy outcomes in breast cancer radiotherapy at a single institution
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: M Heunis --- Radiation Oncology, South Africa DC Lombe --- Radiation Oncology, South Africa M McCaul --- Biostatistics Unit, Division of Epidemiology and Biostatistics, Department of Global Health, South AfricaIntroduction: Breast cancer is the most commonly diagnosed cancer worldwide. With the challenges of cancer treatment in developing countries there is a need for a systematic and methodical approach to treatment in resource-limited settings. -
A retrospective study of stage IB node-negative cervical cancer treated with adjuvant radiation with standard pelvic versus central small pelvic fields
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Tlotlo B Ralefala --- Division of Radiation Oncology, South Africa Leon van Wijk --- Division of Radiation Oncology, South Africa Rakiya Saidu --- Department of Obstetrics & Gynaecology, College of Health Sciences, NigeriaObjective: To compare two types of postoperative radiation therapy (PORT) in early-stage, node-negative cervical cancer treated at Groote Schuur Hospital, Cape Town, South Africa. -
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... -
Anaesthetists’ knowledge of surgical antibiotic prophylaxis: a prospective descriptive study
Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia • Authors: J. Jocum --- Department of Anaesthesiology, South Africa W. Lowman --- Wits Donald Gordon Medical Centre, South Africa H. Perrie --- Department of Anaesthesiology, South Africa J. Scribante --- Department of Anaesthesiology, South AfricaBackground: Surgical site infection (SSI) is the second most common hospital-acquired infection and results in increased morbidity and mortality and a longer hospital stay. Surgical antibiotic prophylaxis (SAP) is one component of broader strategies to reduce rates of SSI. Adherence... -
The impact of cerebrospinal fluid viral analysis on empiric antibiotic use in children admitted to Tygerberg Children’s hospital with suspected meningitis
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Irma Kruger --- Department of Paediatrics and Child Health, South Africa Jean Maritz --- PathCare Reference Laboratory, South Africa Heather Finlayson --- Department of Paediatrics and Child Health, South AfricaBackground: Viral meningitis is the most common form of aseptic meningitis and requires minimal investigation and treatment. Polymerase chain reaction (PCR) has become the ‘gold standard’ for identifying viruses in cerebrospinal fluid and can provide rapid results. The objective of... -
Usage of antibiotics in the intensive care units of an academic tertiary-level hospital
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Deanne Johnston --- Department of Pharmacy and Pharmacology, South Africa Razeeya Khan --- Department of Pharmacy and Pharmacology, South Africa Jacqui Miot --- Department of Pharmacy and Pharmacology, South Africa Shirra Moch --- Critical Care Infection Collaboration, South Africa Yolande van Deventer --- Department of Pharmacy and Pharmacology, South Africa Guy Richards --- Division of Critical Care, South AfricaBackground: The post-antibiotic era is approaching fast as multidrug-resistant bacteria emerge and the antibiotic pipeline slows to a trickle. Antibiotic stewardship requires that antibiotics be used appropriately and as such this study reviewed the utilisation of antibiotics in five adult... -
A retrospective analysis of the effect of planning tumour volume on survival in cervical carcinoma
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: Ilze Fourie --- Division of Radiation Oncology, Stellenbosch University, Tygerberg Academic Hospital, South Africa Hannah M Simonds --- Division of Radiation Oncology, Stellenbosch University, Tygerberg Academic Hospital, South AfricaIntroduction: Locally advanced stages of invasive cervical cancer (ICC) are associated with poor outcomes; factors influencing survival include increased tumour volume. In resource-constrained settings access to diagnostic imaging with CT and MRI is limited. Alternative methods of establishing tumour volume... -
The spatial ecology of adult Labeobarbus marequensis and their response to flow and habitat variability in the Crocodile River, Kruger National Park
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MJ Burnett --- Centre for Aquatic Research, Zoology Department, South Africa GC O’Brien --- School of Biology and Environmental Sciences, South Africa V Wepener --- Water Research Group, Unit for Environmental Sciences and Management, South Africa D Pienaar --- Scientific Services Skukuza, Kruger National Park, South AfricaThe spatial movement of Labeobarbus marequensis was evaluated by attaching radio transmitters to 16 adult fish and tracking them from August 2009 to July 2012 in the Crocodile River, Kruger National Park, South Africa. Monthly monitoring surveys acquired 1 620... -
Developing a taper model for the Pinus elliottii × P. caribaea var. hondurensis hybrid in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Madeleen Algera --- Planning Department, Komatiland Forest, South Africa Christoph Kätsch --- Postgraduate Forest Programme, South Africa Paxie W Chirwa --- Postgraduate Forest Programme, South AfricaA relatively new hybrid, Pinus elliottii × P. caribaea var. hondurensis (Pexc), for which a taper model does not exist, is being planted commercially in South Africa. This study primarily focused on developing a taper model for Pexc in South... -
Contribution to the knowledge of the macroinvertebrate fauna of the streams of Kahuzi-Biega National Park, Democratic Republic of Congo
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MF Ngera --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo SU Pauls --- Senckenberg Research Institute and Natural History Museum, Germany RW Holzenthal --- Department of Entomology, USA M Bagalwa --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo MA Bisimwa --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo EM Mushayuma --- Centre de Recherche en Sciences Naturelles Lwiro, Democratic Republic of Congo DR Cammaerts --- Independent researcher, research associate of the CRSN-Lwiro, Democratic Republic of CongoThe Albertine Rift is one of Africa’s major biodiversity hotspots. However, the aquatic fauna of its western border in Democratic Republic of Congo (DRC) remains understudied and poorly characterised. Kahuzi-Biega National Park (KBNP) in DRC is a crucial link for... -
Histological alterations of selected tissues (gill, liver, kidney and stomach) in two common fish species within two eutrophic peri-urban lakes in Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: B Utete --- Department of Wildlife Ecology and Conservation, Zimbabwe N Mabika --- Department of Anatomy, Zimbabwe J Chiwara --- Department of Applied Biosciences and Biotechnology, Zimbabwe J Makaure --- Department of Applied Biosciences and Biotechnology, Zimbabwe C Phiri --- Department of Freshwater and Fishery Science, Zimbabwe SS Mlambo --- Department of Biotechnology Science, Zimbabwe N Muboko --- Department of Wildlife Ecology and Conservation, Zimbabwe J Tsamba --- Department of Biology, ZimbabwePollution threatens fish health in the eutrophic lakes, Chivero and Manyame, in Zimbabwe. Histopathological tissue alterations of two commonly consumed fish: catfish, Clarias gariepinus, and; tilapia, Oreochromis niloticus, from Lakes Chivero and Manyame were assessed between 2015 and 2016. Seventy-one... -
A five-year audit of lower limb amputations below the knee and rehabilitation outcomes: the Durban experience
Item type: Journal Article • Journal: Journal of Endocrinology, Metabolism and Diabetes of South Africa • Authors: P Manickum --- School of Clinical Medicine, College of Health Sciences, South Africa SS Ramklass --- School of Clinical Medicine, College of Health Sciences, South Africa TE Madiba --- Department of General Surgery, School of Clinical Medicine, College of Health Sciences, South AfricaIntroduction: Lower limb amputation (LLA) due to diabetes mellitus (DM) is a growing epidemic worldwide. -
Bone involvement in patients with cervical carcinoma: a single-institution cohort study
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: JL Butt --- Department of Obstetrics and Gynaecology, Tygerberg Hospital, South Africa MH Botha --- Department of Obstetrics and Gynaecology, Tygerberg Hospital, South AfricaIntroduction: Bony metastases in cervical carcinoma are rare; however, autopsy studies indicate that they are underdiagnosed. A retrospective study was undertaken to describe the risk factors and tumour characteristics and estimate the prevalence of bone involvement in women with cervical... -
Phytochemical screening and antimicrobial investigation of Moringa oleifera leaf extracts
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Oluwole Solomon Oladeji --- Department of Physical Sciences, Faculty of Pure and Applied Sciences, PMB 1001, Km 4, Ipetu Road, Omu-Aran, Kwara State, Nigeria Kehinde Abraham Odelade --- Department of Microbiology, Faculty of Natural and Agricultural Sciences, Private Bag X2046, Mmabatho 2735, South Africa Julius Kola Oloke --- Department of Pure and Applied Biology, PMB 4000, Ogbomoso, Oyo State, NigeriaPhytochemical screening and antimicrobial analysis of Moringa oleifera leaf collected from Ogbomoso, Nigeria were carried out. The secondary metabolites in M. oleifera leaf were extracted by maceration using chloroform, ethyl acetate and ethanol. Some important bioactive compounds or metabolites in... -
Stand structure, regeneration and seed dispersal patterns of Nothofagus glauca (Hualo) in central Chile
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rafael Navarro-Cerrillo --- , España Antonio Cabrera-Ariza --- , Chile Antonio Avaria --- , Chile Guillermo Palacios-Rodríguez --- , España Rómulo Santelices-Moya --- , ChileGrowing interest in functional silviculture is promoting new approaches to the study of seed dispersal and regeneration, two of the key processes that determine the structure and dynamics of plant populations. Nothofagus glauca is an obligate-seeding tree species typical of... -
Shelf-life characteristics of Bambara groundnut (Vigna subterranea (L.)Verdc) probiotic beverage
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Yvonne Yeukai Murevanhema --- , South Africa Victoria Adaora Jideani --- , South AfricaTwo Bambara groundnut probiotic beverages (BGNPB), fermented with (1) Lactobacillus bulgaricus and (2) Lactobacillus bulgaricus and Lactobacillus plantarum were assessed for their shelf-life characteristics. During the shelf-life study, sampling of the BGNPB was done at two-days interval for 28 days... -
Trends in shore-based angling effort determined from aerial surveys: a case study from KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BQ Mann --- , South Africa JB Mann-Lang --- , South AfricaUnderstanding the spatiotemporal characteristics of effort is a critical component of managing fisheries. Recreational shore-angling is the largest sector of the linefishery and one of the primary recreational activities undertaken along the coast of KwaZulu-Natal (KZN), South Africa. The aim... -
Characterisation of eucalypt wood from trees with dieback for production of Kraft pulp
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Ana Paula Câmara --- , Brazil Graziela Baptista Vidaurre --- , Brazil Suellen Rios Martins --- , Brazil João Gabriel Missia da Silva --- , Brazil Humberto Fantuzzi Neto --- , Brazil Jean Carlos Lopes de Oliveira --- , Brazil Amélia Guimarães Carvalho --- , Brazil José Cola Zanuncio --- , Brazil Leandro de Siqueira --- , BrazilDieback, resulting from abiotic stress, compromises the development of trees and the quality of wood. The objective of this work was to characterise the wood and cellulosic pulp produced from young eucalypt wood with dieback. Eucalyptus grandis × Eucalyptus urophylla... -
A cohort study of treatment outcomes after radiotherapy in vulva carcinoma patients
Item type: Journal Article • Journal: Southern African Journal of Gynaecological Oncology • Authors: T Goba-Mjwara --- , South Africa H Simonds --- , South Africa -
Probiotic effect and dietary correlations on faecal microbiota profiles in irritable bowel syndrome
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Cheryl Stevenson --- , South Africa Renée Blaauw --- , South Africa Ernst Fredericks --- , South Africa Janicke Visser --- , South Africa Saartjie Roux --- , South AfricaObjective: Probiotics and nutrient intakes modulate gastrointestinal (GIT) microbiota and symptoms of irritable bowel syndrome (IBS). The extent to which these factors influence the microbiota is relatively unknown. The primary objective of this paper was to investigate the effect of... -
Temperature cycles beneath, and adjacent to, intertidal boulders and associated differences in biotic composition
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C van Rensburg --- , South Africa A Robbins --- , South Africa C Griffiths --- , South AfricaThe only previous study on the macrobiota of South African boulder shores showed this assemblage to be more diverse than on nearby rocky platforms, but the drivers of that difference remain unresolved. We recorded water and air temperatures under intertidal... -
Survey of attitude towards biotechnology among the members of an Ethiopian university fraternity
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Arumuganainar Suresh --- , Ethiopia Solomon Abera --- , Ethiopia Ayele Mandefro --- , Ethiopia Rocktotpal Konwarh --- , Ethiopia Simatsidk Haregu --- , Ethiopia Amare T. Adugna --- , Ethiopia Solomon Benor --- , EthiopiaEthiopia, albeit tagged as an underdeveloped nation, boasts astounding biodiversity, a vibrant culture, and the use of numerous traditional bio-techniques and processes. However, the adoption and application of modern biotechnology do not seem to have kept pace here vis-a-vis the... -
IoT-powered system for environmental conditions monitoring in poultry house: A case of Tanzania
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Beston Lufyagila --- , Tanzania Dina Machuve --- , Tanzania Thomas Clemen --- , GermanyPoultry health is imperative for the continued growth of poultry and increased production. Environmental conditions such as temperature, humidity, and ammonia gas have an impact on poultry health. They affect the respiratory system and eventually cause death. In Tanzania, most... -
Factorization in monoids by stratification of atoms and the Elliott problem
Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Pedro A. García-Sánchez --- Universidad de Granada, España Ulrich Krause --- Universität Bremen, Germany David Llena --- Universidad de Almeria, EspañaIn an additive factorial monoid each element can be represented as a linear combination of irreducible elements (atoms) with uniquely determined coefficients running over all natural numbers. -
Associative nitrogen fixation could be common in South African mesic grassland
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: --- University of KwaZulu-Natal, South Africa --- University of KwaZulu-Natal, South Africa --- Institute for Commercial Forestry Research, South AfricaNon-symbiotic nitrogen-fixing bacterial diazotrophs closely associated with the roots of grasses probably contribute most of the new nitrogen acquired to sustain productive natural grasslands, yet their ecology is poorly understood, especially in southern Africa. We looked for genetic evidence, using... -
A bibliometric study on diatom DNA metabarcording for water quality monitoring: a global perspective
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EO Mbao --- The Technical University of Kenya, Kenya J Nyika --- The Technical University of Kenya, Kenya T Sheng --- Nanjing Agricultural University, China B Ochieng --- State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), China L Sitoki --- The Technical University of Kenya, Kenya SO Oduor --- Egerton University, Kenya N Kitaka --- Egerton University, Kenya L Olaka --- The Technical University of Kenya, Kenya C Tan --- University of Tours, FranceAquatic biota have been used for decades in water quality assessment since they reflect the changing physico-chemical conditions of waterbodies. Among the aquatic organisms used in biological assessment are diatoms. Initially, morphological studies of diatoms were preferred in monitoring but... -
Development of new assessment approach: a macroinvertebrates-based biotic scoring system to assess the health of riverine ecosystems in the Sahel area in Burkina Faso (West Africa)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Kaboré --- Université Joseph KI-ZERBO, Burkina Faso L Sawadogo --- Université Joseph KI-ZERBO, Burkina Faso V Bancé --- Université Joseph KI-ZERBO, Burkina Faso L Tampo --- University of Kara, Togo S Sanogo --- Université NAZI BONY de Bobo-Dioulasso, Burkina Faso A Ouéda --- Université Joseph KI-ZERBO, Burkina Faso O Moog --- University of Natural Resources and Life Sciences, Austria AH Melcher --- University of Natural Resources and Life Sciences, AustriaTo address ongoing threats from human pressures and climate changes, water managers and users require a visual tool that provides accurate information about the health of waterbodies for decision making. However, there is a lack of less sophisticated methods, such... -
Characterisation, prevalence and antibiogram of Aeromonas hydrophila in turtles: insights into virulence factors, antimicrobial resistance genes and innate immunity
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Ahmed R. Khafagy --- Suez Canal University, Egypt Atef M. Kamel --- Suez Canal University, Egypt El-sayed N. Abou El Ghait --- National Institute of Oceanography and Fisheries (NIOF), Egypt Nermeen M. Mohamed --- Cairo University, Egypt Nada H. Eidaroos --- Suez Canal University, Egypt Fatma A. Hagag --- National Institute of Oceanography and Fisheries (NIOF), Egypt Mohamed Fathi --- National Institute of Oceanography and Fisheries (NIOF), EgyptBacterial infection poses a significant threat to the health and survival of turtles, both in their natural habitats and in captivity. Notably, the presence and interactions of bacteria, such as those belonging to the Aeromonas genus, have been identified for... -
Changes in protein expression in Acacia mearnsii De Wild (black wattle) as a result of exposure to frost-inducing temperatures
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: M Jugmohan --- School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, South Africa J Moreno Chan --- Institute for Commercial Forestry Research, South Africa C Morris --- Agricultural Research Council–Animal Production, c/o University of KwaZulu-Natal, South Africa MW Bairu --- Agricultural Research Council–Vegetable, Industrial and Medicinal Plants, South Africa R Burgdorf --- Institute for Commercial Forestry Research, South Africa MD Laing --- School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, South AfricaAcacia mearnsii De Wild (black wattle) is one of the most important forestry crops in South Africa. The bark of this species contains high-quality tannins, while its wood is used for wood chips, charcoal and mining timber. One of the... -
Aspects of the illegal hunting and trade of vultures in northern KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Nomthandazo S Manqele --- University of KwaZulu-Natal, South Africa SA Jeanetta Selier --- South African National Biodiversity Institute (SANBI), South Africa Colleen T Downs --- University of KwaZulu-Natal, South AfricaThe harvesting and trade of species for use in traditional medicine, or muthi, is predominantly illegal, unregulated, and likely unsustainable, representing a major conservation challenge. In South Africa, vulture populations have declined considerably in recent decades, but evidence shows a... -
Socio-ecological change in bait fisheries for the common sandprawn Kraussillichirus kraussi in Durban Harbour, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Chetty --- Oceanographic Research Institute (ORI), South Africa E Steyn --- Oceanographic Research Institute (ORI), South Africa JC Groeneveld --- Oceanographic Research Institute (ORI), South AfricaBait fishing for the common sandprawn Kraussillichirus kraussi in Durban Harbour, on the east coast of South Africa, has a history going back to the early 20th century and has been influenced by port development and political changes over time... -
Sustainable seafood: advances in traceability, assessment, monitoring and resource management
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: IG Gleadall --- , Japan A Barkai --- , South Africa Z Lajbner --- Okinawa Institute of Science and Technology Graduate University (OIST), Japan PB McIntyre --- Cornell University, United States H Moustahfid --- National Oceanic and Atmospheric Administration (NOAA), United States P Olsen --- Norwegian Food Research Institute (Nofima), Norway R Oyanedel --- Pontificia Universidad Católica, Chile Y Pang --- University of Washington, United States GJ Pierce --- Instituto de Investigacións Mariñas (IIM-CSIC), Spain L Quesada --- Loyola Marymount University, United States WHH Sauer --- Rhodes University, South Africa L Zifcakova --- Okinawa Institute of Science and Technology Graduate University (OIST), Japan MA Zoral --- Okinawa Institute of Science and Technology Graduate University (OIST), Japan DA Willette --- Loyola Marymount University, United StatesThis review presents a synopsis of advances in some techniques and technologies that support seafood traceability while addressing some of the complexities currently challenging the integration necessary to coordinate commercial, national and international efforts in achieving seafood sustainability. These advances... -
Floristic and structural changes in a neotropical urban novel forest over 13 years
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Marcelly de Souza Ventura --- Universidade Federal de Juiz de Fora, Brazil Thales Castilhos de Freitas --- Universidade Federal de Juiz de Fora, Brazil Ricardo Montianele de Castro --- Universidade Federal de Juiz de Fora, Brazil Mariana Couto Cruz --- Universidade Federal de Juiz de Fora, Brazil Kelly Antunes --- Universidade Federal de Juiz de Fora, Brazil Taísa Nascimento de Souza --- Universidade Federal de Juiz de Fora, Brazil Breno Moreira --- Universidade Federal de Juiz de Fora, Brazil Fabrício Alvim Carvalho --- Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, BrazilThe ecological importance of non-native species is the main characteristic of novel ecosystems. Pinus elliottii species is highly invasive in tropical forests and is commonly found in secondary forests in Brazil. We investigated the floristic and structural changes in an... -
A comprehensive review: State of art integrated technologies in IoHT applications
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Tabasum Guledgudd --- SECAB IET, India C. Noorullah Shariff --- SECAB IET, India Sayed Abulhasan Quadri --- SECAB IET, IndiaHealthcare delivery has advanced from in-person doctor visits to remote healthcare monitoring, disease prediction and surgical assistance systems. Digitization of healthcare data over the past decade has brought radical transformations to the healthcare domain. It has facilitated healthcare data to... -
Vegetation structure and defoliation patterns in heterogeneous grasslands under two herbage allowance levels
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Felipe Casalás --- University of the Republic, Uruguay Nicolas Caram --- University of the Republic, Uruguay Pablo Soca --- University of the Republic, Uruguay Marcelo Wallau --- University of Florida, USA Pablo Boggiano --- University of the Republic, UruguayUnderstanding the relationship between vegetation attributes and defoliation patterns at multiple spatiotemporal scales is crucial for optimising grazing systems. This study assessed the structural attributes of vegetation and the effects of defoliation frequency and intensity in a campos grassland under... -
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... -
The first record of the tropical tramp millipede Orthomorpha coarctata (de Saussure, 1860) in Cameroon (Diplopoda: Polydesmida: Paradoxosomatidae)
Item type: Journal Article • Journal: African Zoology • Authors: Peter Decker --- , Germany Armand Richard Nzoko Fiemapong --- Laboratoire de Zoologie, Université de Yaoundé I, Cameroon Hans S Reip --- Senckenberg Museum of Natural History Görlitz, Germany Samuel Didier Makon --- Laboratoire de Zoologie, Université de Yaoundé I, Cameroon Paul Serge Mbenoun Massé --- Laboratoire de Zoologie, Université de Yaoundé I, CameroonThis study reports the first record of the flat-backed millipede Orthomorpha coarctata (de Saussure, 1860) in Cameroon, and the second for Central Africa. Specimens were collected between 2014 and 2025 at nine localities in anthropogenic habitats, such as agricultural fields...