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Site Indicator Species for Predicting Productivity of Pine Plantations in the Southern Cape
Item type: Journal Article • Journal: South African Forestry Journal • Authors: G.N. Schafer --- Saasveld Forestry Research Centre,A means of predicting site potential for pine species in the Southern Cape based on 10 vegetation associations is presented. -
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... -
Floristic and Structural Composition of Wonderwoud Forest in the Wolkberg, North-Eastern Transvaal
Item type: Journal Article • Journal: South African Forestry Journal • Authors: C.J. Geldenhuys --- Division of Forest Science and Technology, F.J. Pieterse --- Wolkberg Wilderness Area,The closed, evergreen forest of 450 ha was studied by means of a survey of 55 circular plots of 0,04 ha, distributed in a grid pattern. TWINSPAN classification separated the forest into four stand types: Olea capensis macrocarpa—Xymalos monospora—Syzygium gerrardii... -
Floristic and Structural Composition of Hanglip Forest in the Soutpansberg, Northern Transvaal
Item type: Journal Article • Journal: South African Forestry Journal • Authors: C.J. Geldenhuys --- Division of Forest Science and Technology, B. Murray --- Northern Transvaal Forest Region,The closed, evergreen forest of 363 ha was sampled by means of 62 circular plots of 0,04 ha, distributed in a grid pattern. TWINSPAN classification separated the forest into regrowth forest with two forest types, and mature forest with four... -
Conservation Developments in South African Forestry
Item type: Journal Article • Journal: South African Forestry Journal • Authors: R. McC. Pott --- ,The historical development of environmental conservational activities within the South African Forestry Industry is followed, and the changing emphasis from the conservation of the remaining indigenous forests (pre-1900) to water conservation, to natural assets and unplanted areas is highlighted. The... -
Commercial Forestry on Signal Hill and Lion's Head, Cape Town
Item type: Journal Article • Journal: South African Forestry Journal • Authors: Chrisna Joubert --- Department of Nature Conservation and Oceanography, Cape TownThe history of afforestation with alien tree species on Signal Hill and Lion's Head, which form part of the Table Mountain Nature Reserve, Cape Town, was reconstructed. The natural vegetation comprises mostly West Coast Renosterveld which is considered the most... -
The effect of thirty years of burning on the Highland Sourveld of Natal
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: C.S. Everson --- Department of Environment Affairs, Directorate of Forestry, N.M. Tainton --- Department of Grassland Science,A veld condition assessment was used to determine the effect of past burning treatments on the species composition of Highland Sourveld at Cathedral Peak. Veld condition scores in grassland protected from fire were significantly lower than where veld had been... -
Forage production of some grass species in the false Thornveld of the Eastern Cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: I.E. Danckwerts --- Department of Agriculture (Eastern Cape Region), A.I. Aucamp --- Department of Agriculture (Eastern Cape Region), H.I. Barnard --- Department of Agriculture (Eastern Cape Region),The most commonly occurring grass species in the False Thornveld (Acocks, 1953; veld type no. 21) were clipped before and after grazing on veld in good and poor condition at different times of the year. Herbage yield per species was... -
Towards a method of assessing the veld condition of the valley bushveld in the Eastern Cape
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: G C Stuart‐Hill --- Department of Agriculture and Water Supply (Eastern Cape Region), A J Aucamp --- Department of Agriculture and Water Supply (Eastern Cape Region), C J G Le Roux --- Department of Agriculture and Water Supply (Eastern Cape Region), W R Teague --- Department of Agriculture and Water Supply (Eastern Cape Region),Currently, no technique is available for assessing the condition of Valley Bushveld in the Eastern Cape. The objective of this investigation was to develop a method of scoring bushveld according to its productive condition. It was established, through principal component... -
Preliminary observations on the ability of goats to control post‐burning regrowth in acacia nigrescens/combretum apiculatum Savanna in Botswana
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: R J Sweet --- Animal Production Research Unit, Botswana W Mphinyane --- Animal Production Research Unit, BotswanaA ten hectare block which had been burned with an intense surface head fire was stocked at the rate of one goat per hectare to control the woody regrowth. After one year the block was subdivided and in one half... -
Veld condition in the south‐eastern Transvaal and its effect on grazing capacity
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N F G Rethman --- Department of Agriculture and Water Supply (Transvaal Region), G D Kotzé --- Department of Agriculture and Water Supply (Transvaal Region),A survey conducted on sites throughout the south‐eastern Transvaal, representing 1,4 million hectares of natural veld has confirmed the parlous state of composition, cover and vigour. The implications which these conditions hold, not only for conservation of soil and water... -
Fertilization of southern tall grassveld of natal: Effects on botanical composition and utilization under grazing
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: G.R. Barnes --- Department of Grassland Science, D.I. Bransby --- Department of Grassland Science, N.M. Tainton --- Department of Grassland Science,The long‐term effects of nitrogen, phosphate and lime on change in botanical composition and utilization under grazing of Southern Tall Grassveld of Natal are presented. Nitrogen, phosphate, lime and type of nitrogen affected botanical composition significantly. Generally, fertilization had the... -
The development of veld assessment in the northern Transvaal savanna I. Red Turfveld
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: M.H. Friedel --- Division of Wildlife and Rangelands Research, Australia A.C. Blackmore --- ,Grazing‐induced gradients in pasture species composition were characterized for the red turfveld of the Northern Transvaal savanna. A proposed classification of pasture species response to grazing was developed and the influence of state variables and driving forces other than grazing... -
The development of veld assessment in the northern Transvaal savanna II. Mixed bushveld
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: M.H. Friedel --- Division of Wildlife and Rangelands Research, AustraliaDifferences in pasture species composition as a consequence of grazing were used to develop a proposed classification of pasture species response to grazing, for both the Combretum apiculatum and the Acacia tortilis communities of the northern Transvaal mixed bushveld. The... -
A consideration of veld condition assessment techniques for commercial livestock production in South Africa
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: N.M. Tainton --- Department of Grassland Science,A number of procedures have been developed for the evaluation of veld condition in a variety of vegetation types in South Africa. These include both agronomic and ecologically based methods, about which there still remain a great deal of controversy... -
Groei en produksie van ‘n aanal aangeplante weidings onder beweiding
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: P.A. Pieterse --- Dept Plantproduksie, J.O. Grunow --- Dept Plantproduksie, N.F.G. Rethman --- Dept Plantproduksie,Die groei en produksie onder beweiding van ‘n aantal aangeplante weidings is met behulp van die verskilmetode bepaal. Uit die data verkry in die proef is dit duidelik dat indien daar besproeiingswater beskikbaar is, groen materiaal dwarsdeur die jaar voorsien... -
The effect of severe drought and management after drought on the mortality and recovery of semi‐arid grassveld
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: J.E. Danckwerts --- Department of Agriculture (Eastern Cape Region), G.C. Stuart‐Hill --- Department of Agriculture (Eastern Cape Region),The False Thornveld of the Eastern Cape experienced a particularly intense drought during the 1982/83 growing season. Extensive grass mortality took place during the drought. After the drought, recovery was particularly sensitive to the post‐drought management treatment applied. Veld that... -
An evaluation of veld condition assessment techniques in Highland Sourveld
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: M.B. Hardy --- Department of Agriculture (Natal Region), Republic of South Africa C.R. Hurt --- Department of Agriculture (Natal Region), Republic of South AfricaAn evaluation of six methods used to index veld condition showed that the majority provided indices that were insensitive to long‐term grazing impact. However, certain species were found to either increase or decrease in relative abundance with an increase in... -
Vegetation response to wagon wheel camp layouts
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: YvetteJ. Stroleny --- Botany Department, Republic of South Africa M.T. Mentis --- Botany Department, Republic of South AfricaWagon wheel camp layouts have been favoured, in some quarters, for rotational grazing due to the economy and convenience of having the camps radially arranged around central facilities. A possible disadvantage of such layouts is the tendency for over‐grazing near... -
Korttermyn invloed van strawwe droogte op veldtoestand en waterverbruiksdoeltreffendheid van grasveld in die sentrale Oranje‐Vrystaat
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: H.A. Snyman --- , Republiek van Suid‐Afrika W.L.J. van Rensburg --- , Republiek van Suid‐AfrikaShort‐term effect of severe drought on veld condition and water use efficiency of grassveld in the central Orange Free State. The impact of an intensive drought (1982/1983 and 1983/84‐growing seasons) on botanical composition, basal cover, mortality of grazing plants and... -
The herbage yield and quality of three grass species on two marginal maize soils at Potchefstroom
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: C.S. Dannhauser --- , Republic of South AfricaA small plot experiment with Digitaria eriantha, Panicum maximum and Anthephora pubescens, established on Valsrivier and Westleigh soil forms, was conducted at Potchefstroom during the 1986/87 and 1987/88 seasons. The yield of P. maximum was the highest of the three... -
A comparison of some range condition assessment techniques used in southern African grasslands
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: C.R. Hurt --- Natal Region, Department of Agricultural Development, Republic of South Africa O.J.H. Bosch --- Department of Plant Sciences, Republic of South AfricaTechniques currently used to assess range condition in the grassland biome of southern Africa are reviewed. The methods were used to calculate range condition indices from fire‐climax and climatic‐climax grassland data. These indices were then used to evaluate each method... -
The use of degradation gradients for the assessment and ecological interpretation of range condition
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: O.J.H. Bosch --- Department of Plant and Soil Sciences, Republic of South Africa H.G. Gauch --- Department of Soil, Crop and Atmospheric Sciences, United States of AmericaMultivariate procedures were used to subdivide the southern African climatic climax grasslands of the 700–800‐mm rainfall zone into relatively homogeneous grazing areas. A degradation gradient was constructed for each of these areas. This was done by means of centred PCA... -
Inter‐related floristic changes associated with different long‐term grazing treatments in Sourish Mixed Bushveld1
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: G.N. Smit --- Department of Plant Production, Republic of South Africa N.F.G. Rethman --- Department of Plant Production, Republic of South AfricaEight camps, grazed annually during different seasons by steers, were surveyed. Herbaceous species were grouped into Decreaser and Increaser categories according to their reaction to grazing. The Increaser IIa (light overgrazing) and IIb (moderate overgrazing) herbaceous species were the most... -
Patterns of plant selection by grazing cattle in two savanna grasslands: A plant's eye view
Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa • Authors: T.G. O'Connor --- Resource Ecology Group, Department of Botany, Republic of South AfricaThe amount of grazing experienced by individual tufts of the most abundant perennial grasses of two Transvaal savannas was monitored at regular intervals for two growing seasons. In general, Setaria incrassata and Themeda triandra were heavily grazed, Bothriochloa insculpla and... -
Veld compositional response to fertilization in the tall grassveld of Natal
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N.P. le Roux --- , M.T. Mentis --- Department of Botany,The plant species compositional response of veld at Ukulinga to application, over 30 years, of nitrogen, phosphate and lime is reported. Two types of nitrogen fertilizer were applied at four levels with and without phosphate, lime and lime + phosphate... -
Reciprocal differences in intraspecies crosses of tobacco (Nicotiana tabacum L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.G. van Heerden --- , Republic of South Africa M.P. Lamprecht --- , Republic of South Africa H. van Ark --- , Republic of South AfricaReciprocal differences in a diallel cross experiment with air-cured tobacco strains were found to be significant for certain characteristics, but relatively small compared to differences between strains in general combining ability. A factorial analysis designed to detect maternal effects in... -
The yield potential and crude protein content of five rhizomatous and stoloniferous grass pastures in the escarpment areas of the eastern Transvaal
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: N. F.G. Rethman --- Athole Research Station, Department of Agriculture & Water Supply, Republic of South Africa C. C. de Witt --- Athole Research Station, Department of Agriculture & Water Supply, Republic of South AfricaWhilst Cynodon aethiopicus and the Cynodon hybrid, ‘Coast Cross II’, proved to be unsuited to the cool high rainfall conditions, Acroceras macrum, Pennisetum clandestinum and Digitarla scalarum were well adapted. There was little difference in yield potential between local and... -
An assessment of the variation for stem rust resistance in the progeny of a cross involving the Triticum species aestivum, turgidum and tauschii
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: G.F. Marais --- Department of Genetics and Institute for Biotechnology, Republic of South Africa G.F. Potgieter --- Department of Genetics and Institute for Biotechnology, Republic of South Africa H.S. Roux --- Department of Genetics and Institute for Biotechnology, Republic of South Africa J. le Roux --- Small Grain Centre, Republic of South AfricaAccession RL5289 of Triticum tauschii and Triticum turgidum var. durum cv. Cando showed resistance to the prevailing stem rust races of South Africa. RL5289 was crossed with Cando. An amphiploid was produced and crossed with the common wheat line W107... -
Identification of Cyclopia species (‘Heuningbostee’) using Polyacrylamide gel electrophoresis
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: O.T. de Villiers --- Department of Botany, South Africa M. Bosman --- Department of Botany, South Africa J.H. de Lange --- , South AfricaProtein banding patterns of seed obtained by sodium dodecyl sulphate Polyacrylamide get electrophoresis (SDS-PAGE) or acid polycrylamide gel electrophoresis (A-PAGE) were used to distinguish between different Cyclopia species (‘heuningbostee’). An electrophoretic formula was determined for each species using relative band... -
Effects of aqueous extracts from Artemisia afra parts and soil on seed germination and early seedling development in selected plant species
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J.A. Hansen-Quartey --- Department of Agronomy, Republic of South Africa K. Nyamapfene --- , Republic of South Africa S.A. Materechera --- School of Agriculture, Republic of South AfricaAqueous extracts from leaves, stems, roots of the aromatic shrub Artemisia afra and soil on which Artemisia was grown, were used to investigate their inhibitory effects on germination and seedling development of maize (Zea mays), bean (Phaseolus vulgaris) and ryegrass... -
Fusarium species in wheat grown from head blight infected seed
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W. H.P. Boshoff --- Department of Plant Pathology, Republic of South Africa Z.A. Pretorius --- Department of Plant Pathology, Republic of South Africa W.J. Swart --- Department of Plant Pathology, Republic of South AfricaThe objectives of this preliminary study were to identify Fusarium species associated with wheat seed obtained from head blight infected fields and to determine whether the causal organism(s) of head blight could colonise plants systemically from infected seed. Six Fusarium... -
Involvement of reactive oxygen species generating enzymes and hydrogen peroxide in the rust resistance response of sunflower (Helianthus annuus L.)
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L. Mohase --- Department of Plant Sciences, South Africa A.J. der Westhuizen --- Department of Plant Sciences, South Africa Z.A. Pretorius --- Department of Plant Sciences, South AfricaActivities of potential reactive oxygen species generating enzymes and the subsequent production of H2O2, were investigated during the rust (Puccinia helianthi)—sunflower interaction using resistant (PhRR3) and susceptible (S37–388) lines. The resistance response was associated with induced activities of NADPH oxidase... -
Biomass production, weed suppression, nitrogen and phosphorus uptake in white oat (Avena sativa L.) and grazing vetch (Vicia dasycarpa L.) cover crop bicultures under an irrigated no-till system
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: L Muzangwa --- Department of Agronomy, Faculty of Science and Agriculture, South Africa C Chiduza --- Department of Crop Science, School of Agricultural Sciences, South Africa P Muchaonyerwa --- School of Agricultural, Earth and Environmental Sciences, South AfricaCultivation of a multipurpose cover crop is of interest to Eastern Cape farmers experiencing soil infertility and weed pressures. The objective of the study was to investigate effects of oat–vetch bicultures on biomass production, weed suppression, and nitrogen (N) and... -
Accelerating resistance breeding in wheat by integrating marker-assisted selection and doubled haploid technology
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Elsabet Wessels --- Department of Genetics, South Africa Willem C Botes --- Department of Genetics, South AfricaGenetic resistance is the simplest and most cost-effective way to guard against disease in plants. The pyramiding of resistance genes is a useful practice in bringing about durable resistance. This study aimed to develop a series of doubled haploid (DH)... -
On the dynamics of demersal fish assemblages off Namibia in the 1990s
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: G. Bianchi H. Hamukuaya O. AlvheimDemersal fish surveys carried out off Namibia from 1990 to 2000 were used to study the dynamics of demersal fish assemblages on the shelf and upper slope. The study was performed on each major assemblage, i.e. over the shelf (100–300... -
Population genetic studies of horse mackerel Trachurus trecae and Trachurus trachurus capensis off Angola
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: M. I. Sardinha G. NævdalGenetic variability of the Kunene horse mackerel Trachurus trecae and the Cape horse mackerel Trachurus trachurus capensis was examined using starch gel electrophoresis of enzymatic proteins on individuals collected along the Angolan coast. Six polymorphic enzyme loci were found in... -
Seaweed species diversity in South Africa
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: J. J. Bolton H. StegengaA dataset is presented on the diversity of South African seaweed species and their distribution in contiguous 50-km coastal sections, to demonstrate current knowledge of the flora in various coastal regions. The coastline has a rich flora, consisting of some... -
A new species of electric ray of the genus Narcine Henle, 1834 from the South-Western Indian Ocean (Chondrichthyes: Torpediniformes: Narcinidae)
Item type: Journal Article • Journal: South African Journal of Marine Science • Authors: M. R. de Carvalho B. Séret L. J. V. CompagnoA new species of electric ray of the genus Narcine Henle, 1834 is described from seven specimens collected from two localities off the western coast of Madagascar, in the Moçambique Channel. Narcine insolita, sp. nov. is distinguished from all other... -
A review of the Angolan House snakes, genus Boaedon Duméril, Bibron and Duméril (1854) (Serpentes: Lamprophiidae), with description of three new species in the Boaedon fuliginosus (Boie, 1827) species complex
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jakob Hallermann --- Center of Natural History (CeNak), Zoologisches Museum, Universität Hamburg, Germany Luis MP Ceríaco --- Museu de História Natural e da Ciência da Universidade do Porto, Portugal Andreas Schmitz --- Natural History Museum of Geneva, Department of Herpetology and Ichthyology, Switzerland Raffael Ernst --- Museum of Zoology, Senckenberg Natural History Collections Dresden, Germany Werner Conradie --- Port Elizabeth Museum (Bayworld), South Africa Luke Verburgt --- National Geographic Okavango Wilderness Project, Wild Bird Trust, South Africa Mariana P Marques --- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO), Rede de Investigação em Biodiversidade e Biologia Evolutiva (InBIO), Universidade do Porto, Portugal Aaron M Bauer --- Department of Biology and Center for Biodiversity and Ecosystem Stewardship, Villanova University, USAAn integrative taxonomic review of the genus Boaedon in Angola is provided. A molecular phylogeny, based on 99 genetic samples for which the mitochondrial markers 16S rRNA have been sequenced, reveals 23 monophyletic species-level groups in Africa and indicates the... -
THE JUVENILE FISH POPULATION IN THE MARGINAL AREAS OF THE HENDRIK VERWOERD DAM
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: J.A. Cambray --- Cape Department of Nature and Environmental Conservation, South Africa S. Hahndiek --- Cape Department of Nature and Environmental Conservation, South Africa Q. Hahndiek --- Cape Department of Nature and Environmental Conservation, South AfricaSmall seine nets were used to collect minnow and juvenile fish from a variety of habitats around the 350 km shoreline of the Hendrik Verwoerd Darn. In addition several areas were sectioned off from the darn and poisoned. The species... -
DIATOMS AS INDICATORS OF WATER QUALITY IN THE UPPER HENNOPS RIVER (Transvaal, South Africa)
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: F.R. Schoeman --- , South AfricaThe water quality of the upper Hennops River was determined by applying the method of Lange-Bertalot (1978; 1979), which is based on groups of diatom species with similar tolerances towards pollution. A definite improvement in the water quality was indicated... -
A CKECKLIST OF THE FISH SPECIES OF THE MOGOL AND PALALA RIVERS (LIEPOPO SYSTEM) OF THE TRANSVAAL
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: C.J. Kleynhans --- Transvaal Nature Conservation Division, South AfricaA survey of the fish species of the Mogol and Palala Rivers (Limpopo System) was conducted during 1979 and 1981. Thirty one indigenous fish species were sampled in the Mogol River, five of which were recorded for the first time... -
OBSERVATIONS ON TEMPORAL TRENDS IN PHYTOPLANKTON DIVERSITY IN THE VAAL RIVER AT BALKFONTEIN, SOUTH AFRICA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: A. J.H. Pieterse --- Department of Botany, South AfricaPhytoplankton diversity in the Vaal River at Balkfontein from March to October 1984 was investigated by employing different diversity indices. Most diversity indices showed appreciable variation during the study period indicating specific temporal trends. Greatest diversity was demonstrated for warmer... -
FISH SPECIES IN STEIUTONTEIN DAN, TUGELA-VAAI SYSTEM, SOUTH AFRICA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: W.G. Dörgeloh --- Nature Conservation Branch, Republic of South AfricaTwo alien species and seven indigenous species, including two minnow species, were present in Sterkfontein Dam. Of the larger species, Barbus aeneus and Labco capensis were the dominant in terms of numbers. -
ASPECTS OF THE ECOLOGY OF KNERIA AURICULATA (PELLEGRIN, 1905) (PISCES: KNERIIDAE) FROM THE EASTERN TRANSVAAL SOUTH AFRICA
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: C.J. Kleynhans --- Transvaal Directorate of Nature Conservation, South AfricaSeven natural populations of Kneria auriculata occur in tributaries of the Crocodile River (Incomati System) on the eastern Transvaal escarpment. The routes it probably used to colonize these streams are discussed and used to explain its current restricted distribution with... -
PRELIMINARY OBSERVATIONS ON THE MACROCRUSTACEA OF COASTAL LAKES IN THE VICINITY OF RICHARDS BAY, ZULULAND, SOUTH AFRICA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: P.E. Reavell --- Department of Botany, South Africa D.P. Cyrus --- Coastal Research Unit of Zululand, Department of Zoology, South AfricaA limited amount of research has been carried out on the four coastal lakes in the Richards Bay area. Due to the impending threat of water pollution from industrial, mining and residential areas within the catchments of these lakes there... -
Evaluation of a Computer Model for the Selection of Candidate Species for Aquaculture
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: Peter A. Cook --- Zoology Department, South Africa R.D. Walmsley --- , South AfricaThe use of a computer-based “Expert Choice” system, incorporating the Analytical Hierarchy Process, in the selection of candidate species for aquaculture is described. The system is considered to be particularly useful in developing countries or areas where the aquaculture industry... -
IMPLICATIONS OF WATER RELEASE FROM THE PONGOLAPOORT DAM FOR THE FISH AND FISHERY OF THE PHONGOLO FLOODPLAIN, ZULULAND
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: G.S. Merron --- , South Africa M.N. Bruton --- , South Africa P. la Hausse de Lalouviere --- , South AfricaWetland fish stocks can usually be sustained as long as the natural flood regime is maintained, but unnatural disruption of the flooding pattern can interfere with fish spawning and feeding. The dynamics of the Phongolo floodplain fish community are determined... -
A LIMNOLOGICAL SYNOPSIS OF BHANGAZI SOUTH, A DYSTROPHIC COASTAL LAKE IN THE GREATER ST LUCIA WETLAND PARK (KWAZULU/NATAL), WITH COMMENTS ON ITS CONSERVATION VALUE.
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: R. C. Hart --- , , South Africa C. C. Appleton --- , , South AfricaBase-line limnological and biological data are given for Lake Bhangazi South, a small lake on the coastal plain of Kwazulu-Natal, South Africa. This shallow (Zmax < 6 m), subtropical lake is a warm and seemingly continuously polymictic system, but experiences... -
A NOTE ON THE REINTRODUCTION OF BARBUS TREURENSIS GROENEWALD 1958 (PISCES: CYPRINIDAE) INTO TIIE TREUR RIVER, MPUMALANGA, SOUTH AFRICA.
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: J. S. Engelbrecht --- , South Africa F. Roux --- , South AfricaThe Treur River Barb (Barbus treurensis) was reintroduced into the Treur River after being extinct in this river for about twenty years. During March 1995, 504 individuals were released at a carefully selected site. Recent surveys have shown that, within... -
Seasonal herbage production from two range types in southern Mozambique
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JP Muir A AlageEstimating ideal stocking rates in southern Mozambique based on range productivity is difficult since forage and foggage production of range types receiving different amounts of rainfall have not been quantified to date. Exclosures were constructed in upland and alluvial range... -
Use of the dry-weight-rank method of botanical analysis in semi-arid savanna communities
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: B Dekker KP Kirkman SI du PlessisWhen used in combination with the double sampling (or comparative yield) method of yield estimation, the dry-weight-rank method of botanical analysis provides a rapid non-destructive means of estimating botanical composition. The composition is expressed in terms of the contribution of... -
Estimated spatial requirements of the medium- to large-sized mammals, according to broad habitat units, in the Cape Floristic Region, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AF Boshoff GIH Kerley RM CowlingConservation planning in the Cape Floristic Region (CFR) of South Africa, a recognised world plant diversity hotspot, required information on the estimated spatial requirements of selected medium- to large-sized mammals within each of 102 Broad Habitat Units (BHUs) delineated according... -
Preliminary results of a stocking rate trial in Lesotho
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: LM Mpiti-Shakhane GY Kanyama-Phiri WO Odenya JW BandaForage responses to stocking rates and seasons were determined over a one-year period. The experimental design consisted of three stocking rates namely, light (2.0ha LSU-1), moderate (1.25ha LSU-1) and heavy (0.5ha LSU-1) and four seasons (autumn, winter, spring and summer)... -
Grass composition and rangeland condition of the major grazing areas in the mid Rift Valley, Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Amsalu Sisay R M T BaarsA range inventory and condition study was conducted in three altitude zones: lowland (1500-1700m), medium altitude (1700-2000m), and highland (2000-2500m). Each altitude zone was stratified into four or five important grazing areas. One area represented lightly grazed government ranches or... -
Soil and vegetation changes across a Succulent Karoo grazing gradient
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P C Beukes F EllisThis study describes soil and vegetation changes radiating out from a central watering point on a livestock farm in the Succulent Ceres Karoo (Tanqua). The aim was to identify possible relationships between long-term grazing pressure, and soil and vegetation properties... -
Secondary succession in the Mopani veld of the Limpopo Valley, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JJ Jordaan DCJ Wessels CS Dannhauser GT RootmanThe long-term establishment sequences of the herbaceous and woody component of the Mopani veld of the Limpopo Valley were studied and documented. Based on vegetation surveys conducted at three enclosed sites at the Messina Experimental Farm during the period 1964... -
Vegetation patterns and nutrients in relation to grazing pressure and soils in the sandveld and hardveld communal grazing areas of Botswana
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M Nsinamwa NM Moleele RJ SebegoA major challenge confronting managers of extensive grazing systems is uneven use of herbaceous forage plants by livestock. The concentration of grazing in preferred areas or around foci points (e.g. water points) eventually results in adverse impacts in soil nutrients,... -
A degradation gradient for the assessment of rangeland condition of a semi-arid sourveld in southern Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: HC van der Westhuizen HA Snyman HJ FouchéData collected between 1986/87 and 1999/2000 from a long-term rangeland monitoring project on three different sites were used to construct a degradation gradient in a semi-arid sour grassland of southern Africa. The degradation gradient was then used to quantify rangeland... -
The logistic model-generated carrying capacities, maximum sustained off-take rates and optimal stocking rates for Kenya's commercial ranches
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JT Njoka PID KinyuaThis paper deals with the derivation of logistic models for cattle, sheep and goats in a commercial ranching system in Machakos District, Kenya, a savannah ecosystem with average annual rainfall of 589.3 ± 159.3mm and an area of 10 117ha... -
Determining spatial and temporal variability in quantity and quality of vegetation for estimating the predictable sustainable stocking rate in the semi-arid savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: KR Mbatha D WardThis study assessed the importance of spatial and temporal variation in plant quality and quantity for determining sustainable stocking rates in game, commercial and communal ranches in semi-arid savanna of the Northern Cape Province, South Africa, in wet and dry... -
Pilot survey to assess sample size for herbaceous species composition assessments using a wheel-point apparatus on the Zululand coastal plain
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: BH BrockettA pilot survey to determine sub-sample size (number of point observations per plot) for herbaceous species composition assessments, using a wheel-point apparatus applying the nearest-plant method, was conducted. Three plots differing in species composition on the Zululand coastal plain were... -
Identification of key grass species under grazing in the Highland Sourveld of Natal
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C.R. Hurt --- Department of Grassland Science, Republic of South Africa M.B. Hardy --- , Republic of South Africa N.M. Tainton --- Department of Grassland Science, Republic of South AfricaRelative abundances of rangeland species have for many years been used to index trends in range condition following the impact of grazing. All species recorded in a botanical survey are usually classified according to their assumed reaction to grazing using... -
Classification of the grass layer of semi‐arid rangeland in the Smaldeel area of the eastern Cape
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.C. Martens --- Dept of Agriculture, Republic of South Africa C.D. Morris --- Agricultural Research Council, Republic of South AfricaHierarchical classification based on proportional species composition of the grass layer was used to identify and classify semi‐arid rangeland into range types. The relation between range types produced by the classification and the environmental parameters measured were investigated using a... -
Short‐term effects of cattle‐to‐sheep ratio and stocking rate on patch grazing in sour grassveld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M.B. Hardy --- , Republic of South AfricaThe short‐term effects of stocking rate (AUE ha−1) and cattle‐to‐sheep ratio on the extent and severity of patch grazing and on patch size were evaluated. The extent of patch grazing was proportional to stocking rate, and livestock species had a... -
Species responses to grazing in the Smaldeel area of the Eastern Cape1
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: J.C. Martens --- , Republic of South Africa J.E. Danckwerts --- , Republic of South Africa P.J.K. Zacharias --- Department of Grassland Science, Republic of South AfricaSpecies composition of the grass layer was measured in plots selected to cover a wide spectrum of condition states in six range types. This was achieved by placing 257 sample plots along contrasting fence‐lines in adjacent plots on either side... -
Perspective: Animal‐vegetation relations which optimise production, utilisation and protection of natural resources: An African experience
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: T. Nolan --- , IrelandThe broad objective is to improve the standard of living of farmers/herders through identification of complementary vegetation‐use under mixed animal species grazing. This paper aims to (1) review mixed‐grazing research and development carried out in Ireland and in the semi‐arid... -
Predicting animal production on sourveld: A species‐based approach
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.J. O'Reagain --- , Republic of South AfricaA simulation model was developed to predict average daily gain (ADG) in cattle and sheep grazing different species and swards of different species composition on Dohne Sourveld. The model was based upon measured ingestive and digestive characteristics of different grass... -
Predicting animal production on sourveld: A sward‐based approach
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.J. O'Reagain --- , Republic of South AfricaSimulation models were developed to assess the effects of sward structure and species composition on average daily gain (ADG) and seasonal live mass gain (LWG) in cattle and sheep on Döhne Sourveld. The models used diet quality and intake data... -
Calculating stocking rates for game ranches: Substitution ratios for use in the Mopani Veld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: B. Dekker --- Northern Province Department of Agriculture, Republic of South AfricaDetermination of carrying capacity for mixed‐ or multi‐species grazing systems is complex. Commonly, each species is compared to the standard large stock unit (LSU) used in conventional agriculture. However, this approach does not allow for ecological separation, and thus overlooks... -
Estimating sample size for a small‐quadrat method of botanical survey for application in mixed Bushveld
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: W.G. Dörgeloh --- Applied Natural Sciences, Republic of South AfricaSpecies density and grass density were measured using a small‐quadrat method in eight plant communities in the Nylsvley Nature Reserve, South Africa. The presence of new species in each additional quadrat was used to calculate sample size. A sample size... -
Influence of single applications of nitrogen on white clover nitrogen fixation in autumn and winter dairy pastures in south‐west Victoria, Australia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: F.R. McKenzie --- Department of Natural Resources and Environment, Australia J.L. Jacobs --- Department of Natural Resources and Environment, Australia P. Riffkin --- Department of Natural Resources and Environment, Australia G. Kearney --- Department of Natural Resources and Environment, AustraliaEffects of nitrogen (N) (0, 15, 30, 45 and 60 kg N ha−1) applied at five different times during autumn and early winter on the N fixation of Trifolium repens L. (white clover) in Lolium perenne L. (perennial ryegrass) /... -
Influence of bushdumps on the herbaceous understorey in a mesic Eastern Cape savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: M. Mapuma --- Eastern Cape Department of Agriculture, Republic of South AfiicaStudies of the effects of woody vegetation on herbaceous vegetation in southern Africa have focused almost exclusively on savannas with isolated trees with no attention given to multi‐species bushclump savannas. The influence of multi‐species bushdumps on herbaceous vegetation was investigated... -
Grass species composition, yield and quality under and outside tree crowns in a semi‐arid rangeland in south‐western Zimbabwe
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: C.S. Moyo --- , Zimbabwe B.M. Campbell --- Institute of Environmental Studies, ZimbabweA two‐year study was conducted in lightly grazed areas of Matopos Research Station, Zimbabwe, to evaluate the impact of widely spaced trees on understorey grass composition, yield and quality. The study trees were Terminalia sericea and Acacia karroo. Ordination techniques... -
Antioxidant activity of selected plants of the Great Fish River Reserve,Eastern Cape, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: AH Kgopa --- Department of Biochemistry, Microbiology and Biotechnology, South Africa SI Bulani --- Department of Biochemistry, Microbiology and Biotechnology, South Africa BS Wilhelmi --- Department of Biochemistry, Microbiology and Biotechnology, South Africa JM Brand --- Department of Biochemistry, Microbiology and Biotechnology, South AfricaThe Great Fish River Reserve (GFRR), in the Eastern Cape, has proved to be particularly suitable for the black rhinoceros that have been introduced over the past 20 years. In captivity, these animals often suffer from a number of disease... -
Community dynamics and phytomass of herbaceous species in the Sudaniansavanna-woodlands of Burkina Faso: short-term impact of burning season
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: SD Dayamba --- Tropical Silviculture and Seed Laboratory, Southern Swedish Forest Research Centre, Faculty of Forest Sciences, Sweden P Savadogo --- Tropical Silviculture and Seed Laboratory, Southern Swedish Forest Research Centre, Faculty of Forest Sciences, Sweden L Sawadogo --- Département Productions Forestières, Burkina Faso D Tiveau --- , République Démocratique du Congo D Zida --- Département Productions Forestières, Burkina Faso M Tigabu --- Tropical Silviculture and Seed Laboratory, Southern Swedish Forest Research Centre, Faculty of Forest Sciences, Sweden PC Oden --- Tropical Silviculture and Seed Laboratory, Southern Swedish Forest Research Centre, Faculty of Forest Sciences, SwedenFire is important for the maintenance and conservation of African savanna ecosystems, and prescribed fire is used in the Sudanian savanna-woodlands of West Africa as a forest management tool. Yet, the effects of fire on savanna ecosystems and especially on... -
Botanical composition, yield and nutritional quality of grassland in relation to stages of harvesting and fertiliser application in the highlands of Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Z Tessema --- Department of Animal Sciences, Ethiopia A Ashagre --- , Ethiopia M Solomon --- Debre Zeit Agricultural Research Centre, EthiopiaLivestock production contributes to the livelihoods of the Ethiopian people; however, the productivity of the livestock subsector in the highlands is low due to malnutrition. Therefore, this study assessed the botanical composition, dry matter (DM) yield, chemical composition and in... -
Life form and species diversity on abandoned croplands, Roggeveld, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: H van der Merwe --- Department of Plant Science, South Africa MW van Rooyen --- Department of Plant Science, South AfricaThe Roggeveld consists of an island of Mountain Renosterveld (Fynbos biome) surrounded by Succulent Karoo biome vegetation. Since management of abandoned croplands depends on a better understanding of their succession sequences, vegetation recovery on abandoned croplands in the Roggeveld was... -
Impacts of high utilisation pressure on biodiversity components in Colophospermum mopane savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: MC Rutherford --- SANBI, Applied Biodiversity Research Division, South Africa LW Powrie --- SANBI, Applied Biodiversity Research Division, South Africa DI Thompson --- NRF/SAEON, South AfricaThis study aimed to quantify and evaluate the effects of heavy land utilisation, mainly grazing, on plant species richness and diversity, species abundance, vegetation structure and soil characteristics in a communal area in Colophospermum mopane dominated savanna in southern Africa... -
The effects of a deferred grazing system on rangeland vegetation in a north-western, semi-arid region of Tanzania
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Ismail S Selemani --- Department of Animal and Aquacultural Sciences, Norway Lars O Eik --- Department of International Environment and Development Studies (Noragric), Norway Øystein Holand --- Department of Animal and Aquacultural Sciences, Norway Tormod Ådnøy --- Department of Animal and Aquacultural Sciences, Norway Ephraim Mtengeti --- Department of Animal Science and Production, Tanzania Daniel Mushi --- Department of Animal Science and Production, TanzaniaThe present study assessed the effects of deferred grazing management on rangeland condition using aboveground biomass, vegetation cover and species composition as indicators of range condition. The experiment was based on traditionally conserved exclosures (ngitili). Data were collected in Shinyanga... -
The influence of rest period during the growing season on the potential of four perennial tropical grass species as foggage
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: P.C. le Roux C.S. DannhauserThe foggage acceptability of Digitaria eriantha Steud., Anthephora pubescens, Panicum maximum (cultivar Green panic) and Cenchrus ciliaris (cultivar Gayndah), subjected to three different treatments during the growing season, were evaluated during three seasons (1987/1988, 1988/1989 and 1989/1990). Treatments comprised of... -
Bushclump-grass interactions: influence of bushclumps on their local environment in a south-east African savanna
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: L.C. Jarvel T.G. O'ConnorThe interaction between multi-species bushclumps and the herbaceous layer was investigated in a mesic Eastern Cape bushclump savanna. Bushclumps had a moderating effect on their microclimate when compared with the open grassland: lower maximum and higher minimum temperatures. higher humidity... -
The quantification of rangeland condition in a semi-arid grassland of southern Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: H.C. van der Westhuizen W.L.J. van Rensburg H.A. SnymanThe degradation gradient technique was used to quantify rangeland, condition in areas ranging from poor, trampled areas close to watering points to well managed areas in a semi-arid, sweet grassland of southern Africa. Ecological values were linked to species by... -
A Protocol for Wildlife Conservation Planning in an Afforestable Montane Grassland Region
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: A.J. Armstrong --- Department of Nature Conservation, South Africa H.J. van Hensbergen --- Department of Nature Conservation, South AfricaThe grassland biome is the biome most transformed by human activity in South Africa. At least thirteen percent of the biome is suitable for pine afforestation. There is a need for conservation evaluations before large-scale commercial afforestation to determine which... -
Fourteen Year Performance of Eucalyptus Species/Provenances, Casuarina equisetifolia, Leucaena leucocephala and Senna siamea at Michafutene, Mozambique
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: A.G. Mugasha --- Department of Forest Biology, Faculty of Forestry, Tanzania P.A. Wate --- Centro de Experimentacao Florestal (CEF), S. A.O. Chamshama --- Department of Forest Biology, Faculty of Forestry, TanzaniaVariation in performance of several Eucalyptus species/provenances/land races, Casuarina equisetifolia, Leucaena leucocephala and Senna siamea was evaluated in two 14—year old trials planted at Michafutene, Mozambique. At the age of 6, 10, and 14 years, data were collected of survival,... -
Nutrient levels of three Eucalyptus species/provenances, measured over four seasons in a trial along the sandy, dry, Cape West Coast of South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: F. Ellis --- Faculty of Forestry, A. van Laar --- Faculty of Forestry,Foliage nutrient content of 3 to 6-year old Eucalyptus species/provenances (E. camaldulensis, E. globulus and E. grandis x E. tereticornis) were analysed for eleven elements over a four-year period. The trial was planted on three sites, adjacent to each other,... -
Afromontane forest avifauna of the eastern Soutpansberg mountain range, Northern Province, South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: C.T. Symes --- , South Africa S.M. Venter --- Department of Water Affairs and Forestry, South Africa M.R. Perrin --- , South AfricaThe Soutpansberg forests form the northern limit of indigenous forest in South Africa, Commercial afforestation occurs at high altitudes whereas crops and orchards are planted at lower altitudes. A study of five protected afromontane forests in the eastern Soutpansberg identified... -
Species composition and phytogeographical significance of an afromontane forest fragment in the Mpumalanga province, South Africa
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: T.L. Morgenthal --- , South Africa S.S. Cilliers --- , South AfricaA floristic survey of an afromontane forest fragment, Pedlar's Bush, was done as part of an effort to proclaim this forest as a national heritage site. A checklist of 245 plant taxa has been compiled for Pedlar's Bush. The phytogeographical... -
The macroinvertebrates of the Cunene River from the Ruacana Falls to the river mouth and assessment of the conservation status of the river
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FC de Moor HM Barber-James AD Harrison CR Lugo-OrtizThe proposed construction of a second hydroelectric power-generating dam on the Cunene (Kunene) River on the Namibia-Angola border, more than 100km downstream of the Ruacana hydroelectric power plant, will have a major influence on the aquatic biota of this river... -
The zooplankton community of Lake Kariba in 1962/63 following impoundment of the Zambezi River
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D Harding NA RaynerLake Kariba, bordered by Zambia in the north and Zimbabwe in the south, was formed following the impoundment of the the Zambezi River in 1955. Pre- and post-impoundment studies, which were undertaken on Lake Kariba by the Joint Fisheries Research... -
An assessment of a light-attraction fishery in southern Lake Malawi
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OLF Weyl J Kazembe AJ Booth DS MandereThis study provides the first quantitative assessment of the light-attraction component of a small-scale purse seine, locally known as a chilimira net, fishery in two areas of southern Lake Malawi. For monitoring purposes the shoreline of Lake Malawi is divided... -
The distribution and feeding ecology of the characid Brycinus sadleri in Lake Nabugabo, Uganda: implications for persistence with Nile perch (Lates niloticus)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JohnP Olowo LaurenJ Chapman ColinA Chapman Richard Ogutu-OhwayoCoincident with a rapid increase in numbers of introduced predatory Nile perch (Lates niloticus) in lakes Victoria, Kyoga, and Nabugabo of East Africa was a dramatic decline in populations of many native fishes. However, a few species, including the characid... -
An assessment of the nkacha net fishery of Lake Malombe, Malawi
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OLF Weyl KR Mwakiyongo DS MandereSince the early 1990s the fishery of Lake Malombe, Malawi, has been dominated by haplochromine cichlids which are mainly harvested with a small-scale purse seine called an nkacha net. The annual landings from the fishery declined from 9 500 tons... -
Limnology of southern African coastal lakes — new vistas from Mozambique
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RobC Hart Custodio BoaneFourteen mostly small, isolated, and relatively deep coastal inundation lakes were surveyed during the cool season (August) of 1996. No thermal or chemical stratification existed, but near-bottom hypoxia was evident in several systems. Ionic conductivity varied quite widely, but was... -
Comparing macrophyte herbivory by introduced Louisiana crayfish (Procambarus clarkii) (Crustacea: Cambaridae) and native Dytiscid beetles (Cybister tripunctatus) (Coleoptera: Dytiscidae), in Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SadieK Rosenthal DavidM Lodge KennethM Mavuti Wairimu Muohi Philip Ochieng BenjaminN Mungai GeraldM MkojiThe omnivorous Louisiana crayfish, Procambarus clarkii, has caused significant changes to macrophyte communities worldwide and may have similar negative effects in Kenya if used as a biological control agent for snails harbouring human schistosomes. Here we examine how herbivory by... -
Assessing the true status of the fish species Labeo cylindricus (Peters 1868) (Teleostei: Cyprinidae) in Lake Baringo, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JR Britton DM Harper -
Translocation of marbled African lungfish, Protopterus aethiopicus (Telostei: Protopteridae), and its fishery in Lake Baringo, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ChrisestomM Mlewa JohnM GreenThe translocation of the marbled African lungfish Protopterus aethiopicus into Lake Baringo created a new fishery for the local community, who capture them primarily in a bottom-set long line fishery. Its introduction, development and current fishery status in the lake... -
Eolimna archibaldii spec. nov. and Navigiolum adamantiforme comb. nov. (Bacillariophyceae): two possibly endemic elements of the South African diatom flora tolerant to surface water pollution
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JonathanC Taylor Horst Lange-BertalotTwo little-known diatom taxa have been encountered in the saprobic and anthropogenically impacted waters of the Vaal River, South Africa. Eolimna archibaldii, an extremely small-celled species, is described as new to science. Navicula adamantiformis Archibald is transferred to the taxonomically-appropriate... -
The association between invertebrates and macrophytes in a tropical reservoir, Lake Kariba, Zimbabwe: a preliminary survey
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Lindah Mhlanga Nqobizitha SizibaThe invertebrate fauna associated with aquatic macrophytes in the littoral of Lake Kariba was studied over a three-month period in 2002. Animals from seven classes — Hirudinea, Oligochaeta, Turbellaria, Insecta, Crustacea, Bivalvia and Gastropoda — were collected. Two hirudineans, Placobdella... -
Potential impacts of alien freshwater crayfish in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I de Moor --- , South AfricaThe habitat preferences and life history characteristics of four alien species of freshwater crayfish (Cherax tenuimanus, C. destructor, C. quadricarinatus and Procambarus clarkii) are reviewed. The potential impact of these species on South African freshwater ecosystems is assessed and the... -
The distribution and relative abundance of stream fishes in the upper Manyame River, Zimbabwe, in relation to land use, pollution and exotic predators
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: B Gratwicke --- Department of Biological Sciences, Zimbabwe BE Marshall --- Department of Biological Sciences, Zimbabwe T Nhiwatiwa --- Department of Biological Sciences, ZimbabweA survey of the upper Manyame River catchment, middle Zambezi system, Zimbabwe, yielded a total of 22 fish species from 48 stations. The most widespread species (present at >20 stations) were Marcusenius macrolepidotus, Barbus paludinosus, Labeo cylindricus, Clarias gariepinus and... -
The global impact of alien trout species—a review; with reference to their impact in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JA Cambray --- Makana Biodiversity Centre, South AfricaRainbow and brown trout have been introduced into at least 82 countries, where they have significantly impacted indigenous fish, aquatic invertebrates and amphibians. In many studies the second, and sometimes the first, most serious identified threat to indigenous aquatic fauna... -
Diversity patterns of temporary wetland macroinvertebrate assemblages in the south-western Cape, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MC Mlambo --- Freshwater Research Unit, Department of Zoology, South Africa MS Bird --- Freshwater Research Unit, Department of Zoology, South Africa CC Reed --- Freshwater Research Unit, Department of Zoology, South Africa JA Day --- Freshwater Research Unit, Department of Zoology, South AfricaAlthough macroinvertebrates are potentially useful for assessing the condition of temporary wetlands, little is yet known about them. Macroinvertebrate assemblages were assessed in 138 temporary wetlands in the south-western Cape, recording 126 taxa. However, predicted richness estimates were all higher... -
A vegetation-based hierarchical classification for seasonally pulsed floodplains in the Okavango Delta, Botswana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Murray-Hudson --- , Botswana F Combs --- , Botswana P Wolski --- , Botswana MT Brown --- , USAA classification scheme is presented for seasonal floodplains of the Boro-Xudum distributary of the Okavango Delta, Botswana. This distributary is subject to an annual flood-pulse, the inundated area varying from a mean low of 3 600 km2 to a mean... -
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... -
Fish sampling in the marine-dominated Kariega Estuary, South Africa, using a demersal otter trawl: day/night effects
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SE Bailey --- , South Africa NC James --- , South AfricaVery few demersal fish assemblage studies using otter trawls in estuaries have been done in South Africa and none of these have tested for the effects of diel period. This study aimed to test whether diel period affects otter trawl... -
Spawning migrations of Lake Tana Labeobarbus spp. (Teleostei: Cyprinidae) in the Ribb River, Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: W Anteneh --- Department of Biology, College of Science, Ethiopia A Getahun --- Fisheries and Aquatic Science Stream, Department of Zoological Sciences, Ethiopia E Dejen --- FAO Subregional Office for Eastern Africa, EthiopiaSpawning migration of the endemic Labeobarbus species of Lake Tana upstream and downstream of a proposed site for a large dam on the Ribb River, Ethiopia, were investigated to assess the dam's potential impact on these fish. Fish were collected... -
Mitochondrial and nuclear DNA reveals a complete lineage sorting of Glossogobius callidus (Teleostei: Gobiidae) in southern Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PA Maake --- South African Institute for Aquatic Biodiversity, South Africa M Mwale --- South African Institute for Aquatic Biodiversity, South Africa SM Dippenaar --- Department of Biodiversity, South Africa O Gon --- South African Institute for Aquatic Biodiversity, South AfricaGlossogobius callidus exhibits broad salinity tolerance and is distributed in both estuarine and freshwater environments in southern Africa. Previous studies revealed substantial morphological and molecular variation among populations, suggesting they constitute a species complex. The present study utilised phylogenetic and... -
Variations and changes in habitat, productivity, composition of aquatic biota and fisheries of the Kyoga lake system: lessons for management
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: R Ogutu-Ohwayo --- National Fisheries Resources Research Institute, Uganda K Odongkara --- National Fisheries Resources Research Institute, Uganda W Okello --- National Fisheries Resources Research Institute, Uganda D Mbabazi --- National Fisheries Resources Research Institute, Uganda SB Wandera --- National Fisheries Resources Research Institute, Uganda LM Ndawula --- National Fisheries Resources Research Institute, Uganda V Natugonza --- National Fisheries Resources Research Institute, UgandaThe Kyoga lake system, which is c. 4 m deep, originally had a diverse fish fauna, extensive macrophytes and wetlands. Most (82%) of its water comes from Lake Victoria, is controlled through three dams and has a short residence time... -
Gastropod diversity, distribution and abundance in habitats with and without anthropogenic disturbances in Lake Victoria, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CN Lange --- Invertebrate Zoology Section, Kenya TK Kristensen --- Mandahl-Barth Research Centre for Biodiversity and Health in Developing Countries, DBL Centre for Health Research and Development, Denmark H Madsen --- Mandahl-Barth Research Centre for Biodiversity and Health in Developing Countries, DBL Centre for Health Research and Development, DenmarkWe investigated freshwater gastropod diversity, abundance and distribution in habitats with and without anthropogenic disturbance in two localities, Ndere in the Winam Gulf and Mbita Point, Lake Victoria, Kenya, from May 2002 to January 2004. A total of 133 984... -
Zooplankton composition and community structure in Lake Tiga, Kano, Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EO Akindele --- Department of Zoology, Nigeria IF Adeniyi --- Department of Zoology, NigeriaZooplankton in Lake Tiga was identified and its community structure assessed between March 2009 and March 2011. A total of 54 species of zooplankton was recorded, comprising two species of Protozoa, 26 species of Rotifera, eight species of Copepoda, 11... -
Survival rates in West African savanna birds
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: MattC Stevens --- School of Biology, UK Ulf Ottosson --- AP Leventis Ornithological Research Institute, Nigeria Ross McGregor --- , UK Miriam Brandt --- , Germany Will Cresswell --- School of Biology, UKDespite widespread interest in life histories and the comparison of parameters between tropical and temperate regions, there are still relatively few multispecies studies assessing annual survival in Afrotropical species. We used data from systematic mist-netting of savanna birds in Nigeria,... -
Effects of crop diversity on bird species richness and abundance in a highland East African agricultural landscape
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: P Kariuki Ndang'ang'a --- , Kenya JohnBM Njoroge --- , Kenya Kamau Ngamau --- , Kenya Wariara Kariuki --- , Kenya PhilipW Atkinson --- British Trust for Ornithology, UK Juliet Vickery --- The Royal Society for the Protection of Birds, UKWe examined the effects of crop diversity on avian species richness and abundance in the highland farmlands of Nyandarua, Kenya. We surveyed birds using point counts and recorded habitat data at the same locations estimating cover and growth stage of... -
8. A Different Approach to Site Evaluation and Some Preliminary Results
Item type: Journal Article • Journal: South African Forestry Journal • Authors: A. P.G. Schönau --- , R.C. Purnell --- de Wet Forestry Research Centre,This paper describes a new approach towards site evaluation of exotic tree species which have a limited and non-representative occurrence. Instead of applying the classical site factor analysis and measuring a considerable number of sample plots of different ages at... -
Nile tilapia invades the Lake Malawi catchment
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MJ Genner --- School of Biological Sciences, UK E Connell --- School of Biological Sciences, UK A Shechonge --- School of Biological Sciences, UK A Smith --- Department of Biological Sciences, UK J Swanstrom --- School of Biological Sciences, UK S Mzighani --- Tanzania Fisheries Research Institute (TAFIRI), Tanzania A Mwijage --- Tanzania Fisheries Research Institute (TAFIRI), Tanzania BP Ngatunga --- Tanzania Fisheries Research Institute (TAFIRI), Tanzania GF Turner --- School of Biological Sciences, UKThe Lake Malawi/Nyasa catchment contains over 835 endemic cichlid fish species. This unique biodiversity has made it widely recognised as one of the world's most significant freshwater ecosystems. Here we report the first occurrence records of two invasive tilapiines, Oreochromis... -
Hybridisation between native Oreochromis species and introduced Nile tilapia O. niloticus in the Kafue River, Zambia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AM Deines --- Notre Dame Environmental Change Initiative, and Department of Biological Sciences, USA I Bbole --- The Copperbelt University, Zambia C Katongo --- The Copperbelt University, Zambia JL Feder --- Notre Dame Environmental Change Initiative, and Department of Biological Sciences, USA DM Lodge --- Notre Dame Environmental Change Initiative, and Department of Biological Sciences, USAThe Nile tilapia Oreochromis niloticus has been introduced throughout Africa outside its native range for aquaculture purposes. Hybridisation between escaped O. niloticus and native Oreochromis species is of concern due to potential negative effects on wild genetic resources for conservation,... -
Spatial quality improvement of a toxic industrial effluent, based on physico-chemistry, algal community changes and algal bioassay
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MI Abdel-Hamid --- Botany Department, Egypt EI Abdel-Aal --- Botany Department, Egypt YA Azzab --- Botany Department, EgyptSpatial recovery of a highly alkaline and ammonia-rich industrial effluent was assessed along a wastewater receiving drain near Mansoura City in 2006. Spatial changes in physico-chemical characteristics and water quality index indicated a progressive downstream improvement of wastewater quality, and... -
A brief introduction to some approaches to multispecies/ecosystem modelling in the context of their possible application in the management of South African fisheries
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D. S. Butterworth É. E. PlagányiAspects of the potential application of multispecies/ecosystem modelling to advise the management of South African fisheries are discussed. In general, reliable predictive ability from such models is likely to be achieved sooner for top predators, because relatively fewer links need... -
Simulations of fishing effects on the southern Benguela fish community using an individual-based model: learning from a comparison with ECOSIM
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: Y-J. Shin L. J. Shannon P. M. CuryBy applying an individual-based model (OSMOSE) to the southern Benguela ecosystem, a multispecies analysis is proposed, complementary to that provided by the application of ECOPATH/ECOSIM models. To reconstruct marine foodwebs, OSMOSE is based on the hypothesis that predation is a... -
Accounting for food requirements of seabirds in fisheries management – the case of the South African purse-seine fishery
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R. J. M. CrawfordIn South Africa, four of the seabirds that feed mainly on sardine Sardinops sagax and anchovy Engraulis encrasicolus have an unfavourable conservation status or a small population: African penguin Spheniscus demersus, Cape gannet Morus capensis, Cape cormorant Phalacrocorax capensis and... -
Consideration of multispecies interactions in the Antarctic: a preliminary model of the minke whale – blue whale – krill interaction
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M. Mori D. S. ButterworthAs a first step in investigating the major predator–prey interactions in the Antarctic, a model describing blue whales Balaenoptera musculus, minke whales Balaenoptera acutorostrata and krill Euphausia superba is developed. Blue and minke whales feed mainly on krill, and they... -
A critical look at the potential of Ecopath with ecosim to assist in practical fisheries management
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: É. E. Plagányi D. S. ButterworthEcosystem-orientated thinking is increasingly incorporated into fishery management. Given the complexity of ecosystem processes, there is a need to evaluate the tools used to steer this thinking critically. ECOPATH with ECOSIM (EwE), an aggregate system-modelling package, is currently the most... -
Age structure or functional response? Reconciling the energetics of surplus production between single-species models and ECOSIM
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K. Y. AydinWhole-ecosystem foodweb models, specifically the dynamic model ECOSIM, contain specific hypotheses for surplus production that differ from traditional single-species management models. Specifically, ECOSIM begins with an assumption that all species are tightly connected and energetic surplus does not arise through... -
Marine alien species of South Africa — status and impacts
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TB Robinson CL Griffiths CD McQuaid M RiusThe current status of marine alien species along the South African coast is reviewed and the ecological and economic impacts of these invasions are discussed. In all, 10 confirmed extant alien and 22 cryptogenic species are recorded from the region... -
Algal blooms in Nigerian waters: an overview
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GA Akin-Oriola MA Anetekhai A OriolaAwareness of harmful algal blooms (HABs) and their associated impacts is poor or lacking in the West African sub-region. Different aquatic environments in Nigeria have reportedly experienced blooms of algae either seasonally or year round, but there are no documented... -
Monitoring of Alexandrium species in the Mediterranean Sea using a combined filter system–PCR assay detection method
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Penna G Fusco E Bertozzini MG Giacobbe M Vila L Galluzzi E Garcés A Lugliè M Masò M MagnaniA filter system for collecting phytoplankton cells coupled to a target species-specific polymerase chain reaction (PCR) assay was performed on a spatial and temporal series of net and seawater samples as part of the Mediterranean Sea EU project Strategy (EVK-CT-2001-00046)... -
Growth inhibition of Gyrodinium instriatum (Dinophyceae) by Skeletonema costatum (Bacillariophyceae)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Nagasoe S Toda Y Shimasaki Y Oshima T Uchida T HonjoInteractions between the red tide-forming dinoflagellate Gyrodinium instriatum Freudenthl et Lee and the diatom Skeletonema costatum (Greville) Cleve were investigated in bialgal cultures. The growth rates and maximum cell densities of G. instriatum decreased dramatically in cultures containing S. costatum... -
Characterisation of new analogues of palytoxin isolated from an Ostreopsis mascarenensis bloom in the south-western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Lenoir L Ten-Hage J Turquet JP Quod MC HennionA preliminary screening of toxins of the crude extract of Ostreopsis mascarenensis Quod, a benthic dinoflagellate from the south-western Indian Ocean, revealed a neurotoxicity in mice similar to that induced by palytoxin, one of the most potent marine toxins involved... -
Comparative trophodynamics of anchovy Engraulis encrasicolus and sardine Sardinops sagax in the southern Benguela: are species alternations between small pelagic fish trophodynamically mediated?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CD van der Lingen L Hutchings JG FieldThe results of detailed morphological, experimental, field and modelling studies on various aspects of the trophic ecology of sardine Sardinops sagax and anchovy Engraulis encrasicolus in the Benguela ecosystem are synthesised, and differences in the trophodynamics of these two species... -
Identification of acoustic targets off Angola using General Discriminant Analysis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Vaz Velho BE Axelsen P Barros G Bauleth-D'AlmeidaPelagic fish off Angola constitute about 80% of the total fish landed and some 75% of the animal protein in the diet of the coastal population. The primary means of estimating stock abundance is through acoustic surveys, a method that... -
Patterns of diversity along experimental gradients of disturbance and nutrient supply—the confounding assumptions of the Intermediate Disturbance Hypothesis
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MC Pfaff --- Department of Zoology, South Africa C Hiebenthal --- , Germany M Molis --- , Germany GM Branch --- Department of Zoology, South Africa M Wahl --- , GermanyA model of the interactive effects of disturbance and productivity on diversity predicts peak diversity to shift towards higher disturbance regimes as productivity increases, confining the Intermediate Disturbance Hypothesis to intermediate productivity levels. We conducted a two-factorial (disturbance, nutrients) field... -
The barnacles Chirona (Striatobalanus) amaryllis (Darwin 1854) and Megabalanus coccopoma (Darwin 1854) (Crustacea, Cirripedia): two invasive species new to tropical West African waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Kerckhof --- Management Unit of the North Sea Mathematical Models, Belgium J Haelters --- Management Unit of the North Sea Mathematical Models, Belgium S Degraer --- Management Unit of the North Sea Mathematical Models, BelgiumThe collection of the barnacle Chirona (Striatobalanus) amaryllis (Darwin 1954) (Crustacea, Cirripedia) from the hull of a ship that had been operating for five months in the Gulf of Guinea and off Sierra Leone triggered a closer investigation of the... -
Characteristics and value of the Thukela Banks crustacean and linefish fisheries, and the potential impacts of changes in river flow
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JK Turpie --- Anchor Environmental Consultants, South Africa SJ Lamberth --- Branch Fisheries, Department of Agriculture, Forestry and Fisheries, South AfricaThis study describes the Thukela Banks crustacean and linefish fisheries and investigates the potential impacts of reduced flow from the Thukela River on the value of these fisheries. Data were obtained from published and unpublished material, key informants and government... -
Distribution and seasonality of cetaceans in tropical waters between Angola and the Gulf of Guinea
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CR Weir --- , UKThe species richness, spatial distribution, seasonality and interspecific associations of cetaceans in tropical oceanic waters between the Gulf of Guinea and Angola were examined using 5 905.3 h of dedicated survey effort collected from 13 platforms of opportunity (geophysical vessels)... -
Tube-forming polychaetes enhance invertebrate diversity and abundance in sandy sediments of Mozambique, Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MS Thomsen --- Marine Department, National Environmental Research Institute, Denmark MF Muth --- Department of Environmental Sciences, USA KJ McGlathery --- Department of Environmental Sciences, USAIn marine soft-bottom systems, polychaetes can increase habitat complexity by constructing rigid tubes (e.g. several onuphid species) that contrast with surrounding topographically flat sediments. These structures can provide predation refuges and increase larval settlement and thereby increase the richness and... -
Seasonal fluctuations in occurrence of inshore Bryde's whales in Plettenberg Bay, South Africa, with notes on feeding and multispecies associations
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GS Penry --- , UK VG Cockcroft --- Department of Zoology, Nelson Mandela Metropolitan University, South Africa PS Hammond --- , UKSeasonal fluctuations in the occurrence of inshore South African Bryde's whales Balaenoptera edeni were investigated between November 2005 and June 2008. Sighting data were collected in Plettenberg Bay on the south-east coast of South Africa. Bryde's whale occurrence was modelled... -
A robust method for generating separate catch time-series for each of the hake species caught in the Namibian trawl fishery
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: E Johnsen --- , Norway J Kathena --- Ministry of Fisheries and Marine Resources, NamibiaMerluccius capensis and M. paradoxus are morphologically very similar and cannot be registered separately by species in the Namibian commercial hake catches. This prevents a biologically plausible single-species stock assessment from being carried out. Here, species-separated data from an observer... -
Intra-regional translocations of epifaunal and infaunal species associated with cultured Pacific oysters Crassostrea gigas
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TM Haupt --- Centre for Invasion Biology and Marine Biology Research Centre, South Africa CL Griffiths --- Centre for Invasion Biology and Marine Biology Research Centre, South Africa TB Robinson --- Centre for Invasion Biology and Marine Biology Research Centre, South AfricaFarmed oysters host a diverse community of epifaunal and infaunal fouling taxa, including alien species, and these are easily translocated in the course of commercial oyster trade. We document the diversity and densities of fouling taxa associated with farmed oysters... -
In situ video observations of benthic megafauna and fishes from the deep eastern Mediterranean Sea off Egypt
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AR Gates --- SERPENT Project, UK DOB Jones --- SERPENT Project, UK JE Cartes --- , SpainRemotely operated vehicle (ROV) video observations were used to document benthic fauna at a hydrocarbon drilling location, at 2 720 m depth, in the poorly studied deep water off northern Egypt. The decapod Chaceon mediterraneus was the most common organism... -
Effects of chemicals from longline baits on the biting behaviour of loggerhead sea turtles
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Piovano --- Dipartimento di Biologia Animale e dell'Uomo, Italy A Farcomeni --- Dipartimento di Sanità Pubblica e Malattie Infettive, Italy C Giacoma --- Dipartimento di Biologia Animale e dell'Uomo, ItalyThe biting behaviour of the loggerhead sea turtle Caretta caretta, a high bycatch species by longline fishing gear, was studied on 30 wild specimens held temporarily at rescue centres. To account for repeated measures, the data were analysed using mixed-effects... -
Myosotella myosotis (Mollusca: Ellobiidae) — an overlooked, but well-established introduced species in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DG Herbert --- , South AfricaMyosotella myosotis is shown to be a well-established alien species in South Africa. Discovered in Port Elizabeth more than 100 years ago, it was initially thought to be indigenous and was described under two different names, but subsequent taxonomic work... -
Fishing methods for sustainable shrimp fisheries in the Canary Islands (North-West Africa)
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Arrasate-López --- , Spain VM Tuset --- , Spain JI Santana --- , Spain A García-Mederos --- , Spain O Ayza --- , Spain JA González --- , SpainDuring the past 20 years, experimental cruises have been conducted around the Canary Islands (North-West Africa) to investigate the biodiversity of the deep-sea ecosystem and to explore new fisheries resources. Although pandalid shrimps were shown to be very abundant in... -
Patterns of endemicity and range restriction among southern African coastal marine invertebrates
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: RJ Scott --- Marine Biology Research Centre, Zoology Department, South Africa CL Griffiths --- Marine Biology Research Centre, Zoology Department, South Africa TB Robinson --- Department of Botany and Zoology, South AfricaSouthern Africa supports a rich marine biota of 12 734 currently described marine species. Although the distribution and overall species-richness patterns of several component taxa are well documented, studies considering range sizes are absent. This study considers range size frequencies... -
Significant population genetic structuring of the holoplanktic scyphozoan Pelagia noctiluca in the Atlantic Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BJ Miller --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa S von der Heyden --- Evolutionary Genomics Group, Department of Botany and Zoology, South Africa MJ Gibbons --- Department of Biodiversity and Conservation Biology, South AfricaPelagia noctiluca is thought to have a global distribution, yet our understanding of genetic connectivity across the range of this problem animal is poor. Here, we investigate the genetic structure of populations off southern Africa using mitochondrial COI and nuclear... -
Seasonality in fish assemblage structure in an East African mangrove creek
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MW Wainaina --- , Kenya B Kaunda-Arara --- Department of Fisheries and Aquatic Sciences, Kenya JM Njiru --- Department of Fisheries and Aquatic Sciences, KenyaThe spatial and seasonal structures of fish assemblages in a tropical mangrove tidal creek, Tudor, Kenya, were analysed from monthly survey data, extending from October 2007 to July 2008, and covering the north-east (NEM; October–March) and south-east (SEM; April–July) monsoon... -
Epiphytic seaweeds and invertebrates associated with South African populations of the rocky shore seagrass Thalassodendron leptocaule — a hidden wealth of biodiversity
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CM Browne --- Department of Biological Sciences and Marine Research Institute, South Africa R Milne --- Department of Biological Sciences and Marine Research Institute, South Africa C Griffiths --- Department of Biological Sciences and Marine Research Institute, South Africa JJ Bolton --- Department of Biological Sciences and Marine Research Institute, South Africa RJ Anderson --- Department of Biological Sciences and Marine Research Institute, South AfricaSeagrasses support a great diversity of epiphytic organisms. There are no detailed published accounts of algae and animals growing on seagrasses in South Africa. The seagrass Thalassodendron leptocaule (previously known as Thalassodendron ciliatum) is unique among southern African seagrasses in... -
Patterns and drivers of marine bioinvasions in eight Western Cape harbours, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Peters --- Centre for Invasion Biology, Department of Biological Sciences, South Africa C Griffiths --- Marine Biology Research Centre, Department of Biological Sciences, South Africa TB Robinson --- Centre for Invasion Biology, Department of Botany and Zoology, South AfricaIn South Africa, fouling is the dominant vector of marine invasions, being responsible for 48% of the 86 alien introductions that are known. This study aimed to document alien species in fouling assemblages in eight Western Cape harbours and to... -
Alternative eucalypt species for Zululand: Seven year results of site: species interaction trials in the region
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: R A W Gardner --- , South AfricaThe ICFR initiated a search for alternative eucalypt species for the Zululand Coastal Plain region during 1992 by establishing a series ofsite: species interaction trials in the area. Sixteen pure species (seedlings), one E. grandis intra-specific clone and five inter-specific... -
Yield Potential of selected Eucalyptus genetic stock on the sandy soils of the South African Cape West Coast
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: G. van Wyk --- Department of Forest Science, Faculty of Agricultural and Forestry Sciences, Republic ofSouth Africa A. van Laar --- Department of Forest Science, Faculty of Agricultural and Forestry Sciences, Republic ofSouth Africa J.M. Theron --- Department of Forest Science, Faculty of Agricultural and Forestry Sciences, Republic ofSouth AfricaLand available for afforestation in the Western Cape Region has largely been subordinate to agriculture. Eucalypt species have never been tested intensively along the West Coast. Climatic matching suggests planting of species from West Australia as native habitat introductions, or... -
Farmers' tree planting and access to germplasm in the southern highlands of Tanzania
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Anders Aalbaek --- Department of Economics and Natural Resources,This article examines the effects ofinsufficient availability of planting material on farmers' tree planting in the southern highlands ofTanzania. Patterns in scale of farmers' tree planting, species preferences, and experienced availability of planting material are investigated and compared with past... -
“New” pine species and hybrids: Is there still potential?
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: Eric Kietzka --- Mondi Forests, Republic of South AfricaMany tree breeding programs are moving into advanced generation breeding, and breeders need to ensure continued gains from these programs. The potential of infusing genetic material into existing breeding programs, the introduction of “new” species, and hybridisation are discussed as... -
Comparative growth performance of different Casuarina species and provenance at Lushoto in the West Usambara mountains, Tanzania
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: S. T. Mwihomeke --- Department of Forestry, South Africa P. Mwangingo --- Silviculture Research Centre, Tanzania S.M.S. Maliondo --- Department of Forest Biology, Tanzania S. Mathias --- Silviculture Research Centre, Tanzania S.A.O. Chamshama --- Department of Forest Biology, TanzaniaVariation in growth charactristics, coppicing ability and understory vegetation development was assessed in four Casuarina species (C. equisetifolia, C. junghuhniana, C. cunnighamiana and C. oligodon) grown in Lushoto in the West Usambara Mountains (WUM), Tanzania. The performance of the four... -
Harvesting, processing and utilisation of rattan canes in Western Nigeria
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: E. Babajide Lucas --- Department of Agricultural Engineering, Nigeria Bamidele I.O. Dahunsi --- Department of Civil Engineering, NigeriaField trips were undertaken as a preliminary exercise, to identify the available rattan species in Western Nigeria and to estimate the quantities available. Information relating to their end-uses was collected from cane furniture makers and other rattan cane users through... -
Cold tolerant eucalypts in South Africa—Growth information for informed site-species matching in SA
Item type: Journal Article • Journal: The Southern African Forestry Journal • Authors: T.L. Swain --- Institute for Commercial Forestry Research, Africa R.A.W. Gardner --- Institute for Commercial Forestry Research, AfricaSite-species matching is very important in managing the various limiting site and climatic factors in the more temperate forestry areas in South Africa. Information has been gathered from ICFR site-species interaction trials and provenance/progeny trials and summarised into a format... -
The use of species–stem curves in sampling the development of the Zambian miombo woodland species in charcoal production and slash-and-burn regrowth stands
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: S Syampungani --- School of Natural Resources, Zambia CJ Geldenhuys --- Department of Forest and Wood Science, South Africa PW Chirwa --- Faculty of Natural and Agricultural Sciences, South AfricaThe use of fixed-area plot methods was considered unsuitable to compare the responses and recovery over time of different miombo woodland species to different land-use practices (i.e. charcoal production and slash-and-burn agriculture). Young regrowth stages have many stems and the... -
Tree species composition, structure and utilisation in Maruzi Hills Forest Reserve in Uganda
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: I Kiyingi --- , Uganda JM Kidiya --- , Uganda S Gwali --- , Uganda P Okullo --- , Uganda DM Byabashaija --- , UgandaThe study investigated the tree species composition, vegetation structure and harvesting pattern to guide management of the Maruzi Hills Forest Reserve. Stratified random sampling was used to site six (100 m × 100 m) permanent sample plots in the woodland,... -
Low genetic diversity and high genetic differentiation among severely fragmented populations of the critically endangered tree Talbotiella gentii (Fabaceae)
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: D Dompreh --- School of Biological Sciences, UK MD Swaine --- School of Biological Sciences, UK A Price --- School of Biological Sciences, UKThe genetic diversity among 17 populations (including 10 newly discovered) of Talbotiella gentii (Fabaceae, Caesalpinioideae), a rare tree species endemic to Ghana, was assessed using random amplified polymorphic DNA (RAPD). A total of 80 polymorphic bands were generated from eight... -
Establishment of a Nothofagus alessandrii plantation using different levels of shade and weed control methods in Talca province, central Chile
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: R Santelices --- Department of Forestry Science and Dryland Technology Centre, Faculty of Agrarian and Forestry Sciences, Chile F Drake --- Department of Forest Management and Environment, Faculty of Forestry Sciences, Chile RM Navarro-Cerrillo --- Department of Forest Engineering, Faculty of Agronomy and Forestry, SpainThere is a lack of information regarding the establishment of Nothofagus alessandrii plantations, including any impacts that shading and weed control may have on early survival and growth. A trial was therefore initiated where four shade levels (0% and Rachel®... -
Future outlook for Pinus patula in South Africa in the presence of the pitch canker fungus (Fusarium circinatum)
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: RG Mitchell --- , South Africa TA Coutinho --- Forestry and Agricultural Biotechnology Institute, South Africa E Steenkamp --- Forestry and Agricultural Biotechnology Institute, South Africa M Herbert --- , South Africa MJ Wingfield --- Forestry and Agricultural Biotechnology Institute, South AfricaApproximately 50% of the area planted to softwood trees in South Africa has been established with Pinus patula, making it the most important pine species in the country. More effort has gone into developing this species for improved growth, tree... -
Relationships between diameter and height of trees in natural tropical forest in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Wilson A Mugasha --- Department of Ecology and Natural Resource Management, Norway Ole M Bollandsås --- Department of Ecology and Natural Resource Management, Norway Tron Eid --- Department of Ecology and Natural Resource Management, NorwayThe relationship between tree height (h) and tree diameter at breast height (dbh) is an important element describing forest stands. In addition, h often is a required variable in volume and biomass models. Measurements of h are, however, more time... -
A preliminary survey and analysis of the spatial distribution of aquatic invertebrates in the Okavango Delta, Botswana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HelenF Dallas Belda MosepeleThe spatial distribution of aquatic macroinvertebrates in the Okavango River Delta, Botswana, was investigated during the low-water period in February 2003. This complements an earlier study undertaken during high-water in June 2000. Seventy-five samples were taken in a range of... -
Human impact on lake ecosystems: the case of Lake Naivasha, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GeorgeE Otiang'a-Owiti Ignatius Abiya OsweLake Naivasha is a wetland of national and international importance. However, it is under constant anthropogenic pressures, which include the quest for socioeconomic development within the lake ecosystem itself as well as other activities within the catchment. The lake is... -
Temporal trends in total phosphorus, temperature, oxygen, chlorophyll a and phytoplankton populations in Hartbeespoort Dam and Roodeplaat Dam, South Africa, between 1980 and 2000
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CarinE van Ginkel MichaelJ SilberbauerEutrophication, phytoplankton blooms and changes to the phytoplankton composition are some of the problems facing the managers of Hartbeespoort Dam and Roodeplaat Dam. Trends, both decreasing and increasing, are visible in the phosphorus concentrations, temperatures, dissolved oxygen concentrations and chlorophyll... -
A preliminary study of allozyme differences amongst Carcharhinus sharks from the continental slope near Abidjan, Côte d'lvoire
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Béatrice Adepo-Gourène Lounès Chikhi Jean-François Agnèse Germain Gourène Alain HervéGenetic variability of fifty-five shark specimens from the genus Carcharhinus was analysed using 18 allozyme loci. Sixteen loci were polymorphic either within, or between, species. Levels of genetic polymorphism, as measured by observed heterozygosity values, ranged from 0.008 (±0.008) to... -
The effect of fish predation on benthic macroinvertebrates in a seasonal stream in north-western Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Albert Chakona Brian Marshall Luc BrendonckThe cumulative impact of the entire fish assemblage on benthic macroinvertebrate assemblages was investigated over four months in a removal experiment in isolated pools that persist through the dry season, in an intermittent stream in north-western Zimbabwe. Macroinvertebrate taxonomic richness... -
Caddisfly (Trichoptera) larvae of the Opa River basin, south-western Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SylvesterS OgboguCaddisflies in the streams of the Opa River catchment basin in Ile-Ife, south-western Nigeria, were surveyed, documenting nine genera in six families. Hydropsychidae is the most speciose family, with three genera, and has the highest number of individuals in the... -
Dry season fish survival in isolated pools and within sand-beds in the Mzingwane River, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JohnL MinshullFour isolated pools in the otherwise dry Mzingwane River, Zimbabwe, were sampled in December 1985 and a total of 4 547 specimens of 23 species were collected. The dominant species, by number, were Chiloglanis paratus, followed by Barbus toppini, Mesobola... -
The impact of invasive fish and invasive riparian plants on the invertebrate fauna of the Rondegat River, Cape Floristic Region, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: StevenR Lowe DarraghJ Woodford DeanN Impson JennyA DayInvasive fish and plants are widespread in the rivers and riparian zones of the Cape Floristic Region of South Africa and represent potential threats to the highly endemic freshwater fauna. We investigated the impact of invasive smallmouth bass (Micropterus dolomieu)... -
A laboratory assessment of the potential molluscicidal potency of Jatropha curcas aqueous extracts
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MJ Chimbari CJ ShiffPreliminary laboratory studies were conducted to determine the molluscicidal potency of Jatropha curcas, the physic nut. Biomphalaria glabrata and Bulinus globosus snails were exposed to varying concentrations of aqueous extracts of crushed J. curcas seeds from unripe, ripe and overripe... -
Influence of largemouth bass, Micropterus salmoides, on abundance and habitat selection of Cape galaxias, Galaxias zebratus, in a mountain stream in the Cape Floristic Region, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JM Shelton JA Day CL GriffithsPredatory alien fishes have been widely introduced into streams in the Cape Floristic Region (CFR), South Africa, but little is known about their effect on native fishes. Results from this 2006 study suggest that the presence of alien predatory largemouth... -
Micro-distribution of freshwater snails before and after water flow events in hydraulic structures in Tessaout Amont irrigation system, Morocco
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H Laamrani H Madsen E BoeleeBulinus truncatus, the intermediate host of Schistosoma haematobium, is widely distributed in modern irrigation schemes in Morocco. These schemes have intermittent irrigation and canals dry out in between irrigation periods. The snail species is therefore associated with the 'siphon boxes'... -
Application of a fish health assessment index and associated parasite index to Clarias gariepinus (Teleostei: Clariidae) in the Vaal River system, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D Crafford --- Department of Zoology, South Africa A Avenant-Oldewage --- Department of Zoology, South AfricaThe aim of this study was to determine if the fish health assessment index (HAI) developed in the USA and associated parasite index (PI), when applied to Clarias gariepinus at two localities in the upper and middle Vaal River system,... -
Why Carcinus maenas cannot get a grip on South Africa's wave-exposed coastline
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SL Hampton CL GriffithsThe European green crab Carcinus maenas has established considerable breeding populations in harbours and sheltered bays in the South-Western Cape, South Africa, but appears unable to flourish on the wave-exposed coastline. This study compares the abilities of C. maenas and... -
A simple implementation of the statistical modelling framework Gadget for cod in Icelandic waters
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Taylor J Begley V Kupca G StefanssonGadget is a statistical modelling framework that can be used to assess individual fish stocks and to create multispecies, multi-fleet and multi-area models. The development of a complex multispecies model requires understanding of the modelled single-species population. Simple single-species models... -
The zooplankton community of Richards Bay Harbour and adjacent Mhlathuze Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: HL JerlingDuring construction of the current Richards Bay Harbour in the early 1970s, the original shallow Mhlathuze Estuary was divided into two separate systems: a new estuary and a deep-water harbour. This study compares the zooplankton communities of the current systems... -
Present distribution and abundance of the introduced barnacle Balanus glandula Darwin in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MC Laird CL GriffithsThe date of first introduction of the North-East Pacific acorn barnacle Balanus glandula to South Africa is unknown, but it is depicted in photographic records dating back to at least 1992. Its present range and population density were determined by... -
Restoring bare patches in the Nama-Karoo of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: N Visser C Morris MB Hardy JC BothaOften veld degrades to a point beyond which vegetation cover, plant density and species composition do not recover despite the removal of the grazing impact. In such cases restoration interventions become necessary to assist with the re-establishment of vegetation. The... -
Impact of the invader Ipomoea hildebrandtii on grass biomass, nitrogen mineralisation and determinants of its seedling establishment in Kajiado, Kenya
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: JK Mworia JI Kinyamario EA JohnThe invasive coloniser Ipomoea hildebrandtii aggravates the problem of inadequate grass forage in Kajiado district, Kenya. To test its impact on grass biomass, nitrogen (N) mineralisation and seedling establishment, grazing and coloniser density were controlled using experimental exclosures and weeding... -
The effect of mulching and fertilising on growth of over-sown grass species in degraded rangeland in north-eastern Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Kidane Gebremeskel PJ PieterseA study to investigate oversowing of grass species as a restoration strategy in severely degraded rangeland was carried out in the Allaidege rangeland in north-eastern Ethiopia. Locally collected seeds of three grass species (Enteropogon rupestris, Ischaemum afrum and Tragus berteronianus)... -
Chemical composition and in vitro ruminal fermentation of selected grasses in the semiarid savannas of Swaziland
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: S Tefera V Mlambo BJ Dlamini AM Dlamini KDN Koralagama FL MouldLittle is known about the grass species type, composition and nutritive value in the semiarid savannas that sustain most of Swaziland's cattle population through the seven-month-long dry season. This study was conducted to investigate the nutritional characteristics of grasses collected... -
Vegetative traits predict grass species' invasiveness and the invasibility of restored grassland
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: RWS Fynn --- School of Biological and Conservation Sciences, South Africa PD Wragg --- School of Biological and Conservation Sciences, South Africa CD Morris --- Agricultural Research Council, South Africa KP Kirkman --- School of Biological and Conservation Sciences, South Africa J Naiken --- School of Biological and Conservation Sciences, South AfricaUnderstanding how grass species' traits relate to their invasiveness and the invasibility of their monocultures can inform restoration of diverse grassland. We measured vegetative traits for 18 bunch grass species local to Pietermaritzburg (KwaZulu-Natal, South Africa) and measured their competitive... -
Shoot allometry of Jatropha curcas
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: SB Ghezehei --- Department of Plant Production and Soil Science, South Africa JG Annandale --- Department of Plant Production and Soil Science, South Africa CS Everson --- Department of Plant Production and Soil Science, South AfricaThe South African government has banned planting of Jatropha curcas L. (Jatropha), potentially a multipurpose tree and biofuel source, owing to insufficient knowledge about the species. Use of allometry as a non-destructive method of monitoring growth and biomass attributes of... -
The socioeconomic status of the non-timber forest product subsector in Swaziland
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: CS Dlamini --- Department of Forest and Wood Science, Faculty of Agrisciences, South Africa CJ Geldenhuys --- Department of Forest and Wood Science, Faculty of Agrisciences, South AfricaA wide spectrum of non-timber forest products (NTFPs) generally has a remarkable contribution to the household economy in rural areas. Most communities make a living either through their domestic or commercial use. The objective of this study was to review... -
Reproductive biology and distribution of Syngnathus temminckii and S. watermeyeri (Pisces: Syngnathidae) in southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Mwale --- South African Institute for Aquatic Biodiversity, South Africa H Kaiser --- Department of Ichthyology and Fisheries Science, South Africa PC Heemstra --- South African Institute for Aquatic Biodiversity, South AfricaThe reproductive biology and distribution of two species of Syngnathus (S. temminckii and S. watermeyeri) were investigated using information from museum specimens, published data, survey data and samples collected during mouth-breaching events of temporarily open/closed estuaries over the period 1950–2011... -
Alternative approaches to Red-billed Quelea Quelea quelea management: mass-capture for food
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clive CH Elliott --- Blue Barn House, South Leigh, UK Boaz N Mtobesya --- Plant Health Services, Tanzania Robert A Cheke --- Natural Resources Institute, UKOrganophosphate pesticide spraying or the deployment of explosives as standard practices for controlling quelea breeding colonies or roosts that threaten small-grain crops in Africa have negative side-effects on non-target birds and on the environment. Mass-capture techniques were tested as an... -
Responses of the Serengeti avifauna to long-term change in the environment
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Anthony RE Sinclair --- Beaty Biodiversity Research Centre, Canada Ally Nkwabi --- Serengeti Biodiversity Program, Tanzania Simon AR Mduma --- Beaty Biodiversity Research Centre, Canada Flora Magige --- Department of Zoology and Wildlife Conservation, TanzaniaIn this paper we examine how climate change interacts with other disturbances to alter the functioning of a tropical ecosystem, the Serengeti in Tanzania. Tropical Africa has increasing temperatures and changes in rainfall. Long-term data have shown how the avifauna... -
Population dynamics of potentially harmful algal blooms in Bizerte Lagoon, Tunisia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D Bouchouicha Smida --- Laboratoire de Cytologie Végétale et Phytoplanctonologie, Département des Sciences de la Vie, Faculté des Sciences de Bizerte, Tunisie I Sahraoui --- Laboratoire de Cytologie Végétale et Phytoplanctonologie, Département des Sciences de la Vie, Faculté des Sciences de Bizerte, Tunisie B Grami --- Laboratoire de Cytologie Végétale et Phytoplanctonologie, Département des Sciences de la Vie, Faculté des Sciences de Bizerte, Tunisie H Hadj Mabrouk --- Laboratoire de Cytologie Végétale et Phytoplanctonologie, Département des Sciences de la Vie, Faculté des Sciences de Bizerte, Tunisie A Sakka Hlaili --- Laboratoire de Cytologie Végétale et Phytoplanctonologie, Département des Sciences de la Vie, Faculté des Sciences de Bizerte, TunisieThe population dynamics of potentially harmful phytoplankton in the semi-closed, coastal Bizerte Lagoon, Tunisia, in the south-western Mediterranean, were examined from November 2007 to February 2009 at six sampling stations, three situated in areas of mussel and oyster farming. The... -
Invasive Australian crayfish Cherax quadricarinatus in the Sanyati Basin of Lake Kariba: a preliminary survey
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LT Marufu --- University of Zimbabwe, Zimbabwe C Phiri --- University Lake Kariba Research Station, Zimbabwe T Nhiwatiwa --- University of Zimbabwe, ZimbabweThe invasion of Cherax quadricarinatus, the Australian redclaw crayfish, in the Sanyati Basin of Lake Kariba, Zimbabwe, is reported. A total of 79 crayfish were caught at 10 out of 12 sampling sites in the Sanyati Basin in November–December 2012... -
Survival, growth, wood basic density and wood biomass of seven-year-old Casuarina species/provenances grown at Kongowe, Kibaha, Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Abeid I Kindo --- Tanzania Forest Services, Tanzania Ezekiel Edward --- Department of Forest Biology, Tanzania Mathew A Mndolwa --- Tanzania Forestry Research Institute, Tanzania Shabani AO Chamshama --- Department of Forest Biology, TanzaniaA performance comparison of seven-year-old individuals of 13 Casuarina species/provenances in terms of survival, growth (diameter, height and volume), wood basic density and wood biomass was undertaken at Kongowe, Kibaha, Tanzania. The trial was laid out using a randomised complete... -
Diversity and structure of woody vegetation across areas with different soils in Gonarezhou National Park, Zimbabwe
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Edson Gandiwa --- School of Wildlife, Ecology and Conservation, Zimbabwe Patience Zisadza-Gandiwa --- Transfrontier Conservation Areas Unit, Zimbabwe Parks and Wildlife Management Authority, Zimbabwe David Goza --- Mushandike College of Wildlife Management, Zimbabwe Parks and Wildlife Management Authority, Zimbabwe Clayton Mashapa --- Tropical Resource Ecology Programme, Zimbabwe Never Muboko --- School of Wildlife, Ecology and Conservation, ZimbabweDespite the importance of edaphic factors in influencing woody vegetation diversity and structure in savannas, there is still limited research on the topic across most savanna ecosystems. Here we investigate the differences and/or similarities of woody vegetation diversity and structure... -
Prioritising species for research, conservation and management: a case study of exploited fish species
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SJ Lamberth --- Branch: Fisheries Management, Department of Agriculture, South Africa AR Joubert --- Southern Waters Ecological Research and Consulting, South AfricaStudies that categorise species according to their conservation status often fall short in their implementation by not having taken into account the impacts on, or the response from, those that either benefit from, or exploit, the resource under consideration. This... -
Polydorid polychaetes (Spionidae) on farmed and wild abalone (Haliotis midae) in South Africa: an epidemiological survey
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MK Boonzaaier --- Department of Botany and Zoology, South Africa S Neethling --- Department of Botany and Zoology, South Africa A Mouton --- Amanzi Biosecurity, South Africa CA Simon --- Department of Botany and Zoology, South AfricaAlthough there has been an increase in our understanding of the shell-boring polydorids that infest abalone Haliotis midae in South Africa, abalone from a limited number of farms, and wild populations from east of Cape Agulhas only, have been examined... -
Repeat photography as a tool for detecting and monitoring historical changes in South African coastal habitats
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: B Reimers --- Centre for Invasion Biology and Department of Biological Sciences, South Africa CL Griffiths --- Centre for Invasion Biology and Department of Biological Sciences, South Africa MT Hoffman --- Plant Conservation Unit, Department of Biological Sciences, South AfricaRepeat photography was used to illustrate long-term changes occurring in coastal habitats in the Western Cape, South Africa. Historic images were sourced from books and theses, the public and subject specialists, and repeat photographs were then taken from the same... -
Congregations of wintering Egyptian Vultures Neophron percnopterus in Afar, Ethiopia: present status and implications for conservation
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Volen Arkumarev --- Bulgarian Society for Protection of Birds/BirdLife Bulgaria, Bulgaria Vladimir Dobrev --- Bulgarian Society for Protection of Birds/BirdLife Bulgaria, Bulgaria Yilma D Abebe --- Ethiopian Wildlife and Natural History Society, Ethiopia Georgi Popgeorgiev --- Bulgarian Society for Protection of Birds/BirdLife Bulgaria, Bulgaria Stoyan C Nikolov --- Bulgarian Society for Protection of Birds/BirdLife Bulgaria, BulgariaThe Endangered Egyptian Vulture Neophron percnopterus congregates in communal roosts in the wintering areas and where food availability is high, where even a single threat might lead to substantial population declines. Thus, more research on the congregation sites is needed... -
Microcystin-LR equivalent concentrations in fish tissue during a postbloom Microcystis exposure in Loskop Dam, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: T Nchabeleng --- Department of Biodiversity, South Africa P Cheng --- CSIR Natural Resources and the Environment, South Africa PJ Oberholster --- CSIR Natural Resources and the Environment, South Africa A-M Botha --- Department of Genetics, South Africa WJ Smit --- Department of Biodiversity, South Africa WJ Luus-Powell --- Department of Biodiversity, South AfricaThe effects of a decomposing cyanobacteria bloom on water quality and the accumulation of microcystin-LR equivalent toxin in fish at Loskop Dam were studied in May 2012. Enzyme-linked immunosorbent assay [ELISA] was used to confirm the presence of microcystin-LR equivalent... -
A comparison of methods for incubating zooplankton diapausing eggs from sediment of endorheic pans in the Free State, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SL Liefferink --- Department of Zoology, South Africa RB Tate --- Department of Zoology, South Africa JHJ van Vuren --- Department of Zoology, South Africa M Ferreira --- Department of Zoology, South Africa W Malherbe --- Unit for Environmental Sciences and Management, South AfricaDetermining the composition of zooplankton in endorheic pans can be challenging, and live sampling of these microcrustaceans does not give a true indication of their species diversity and abundance. The incubation of zooplankton diapausing eggs can assist in determining their... -
Breeding ecology of the Seychelles Black Parrot Coracopsis barklyi
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Anna Reuleaux --- Seychelles Islands Foundation, Seychelles Heather Richards --- Seychelles Islands Foundation, Seychelles Terence Payet --- Seychelles Islands Foundation, Seychelles Pascal Villard --- Seychelles Islands Foundation, Seychelles Matthias Waltert --- Department of Conservation Biology, Germany Nancy Bunbury --- Seychelles Islands Foundation, SeychellesKnowledge of breeding ecology is required for many conservation interventions. The Seychelles Black Parrot Coracopsis barklyi, endemic to the island of Praslin, is vulnerable to extinction. We aimed to improve understanding of C. barklyi breeding ecology to aid conservation planning... -
Oribatid mites of the genus Allonothrus (Acari: Oribatida: Crotonioidea) of the Ethiopian region with the description of a new subspecies
Item type: Journal Article • Journal: African Zoology • Authors: Ziemowit Olszanowski --- Department of Animal Taxonomy and Ecology, Adam Mickiewicz University, Poland Natalia Bochniak --- Department of Animal Taxonomy and Ecology, Adam Mickiewicz University, PolandSummary data on oribatid mites of the genus Allonothrus (Trhypochthoniidae) of the Ethiopian region are presented. A new subspecies, Allonothrus schuilingi seychelli nov. subsp., is described from Seychelles. It is distinguished on the basis of the shape and length of... -
First record of the Southeast Asian walking catfish, Clarias batrachus (Pisces: Clariidae), from the island of Mauritius, south-western Indian Ocean
Item type: Journal Article • Journal: African Zoology • Authors: Irfan Nunkoo --- Marine Research Institute, Department of Biological Sciences, University of Cape Town, South Africa Cecile Reed --- Marine Research Institute, Department of Biological Sciences, University of Cape Town, South Africa Sven Kerwath --- Marine Research Institute, Department of Biological Sciences, University of Cape Town, South AfricaThe presence of Southeast Asian walking catfish, Clarias batrachus, in Mauritian freshwater systems has been confirmed. Three female Clarias batrachus were caught in Rivière Sèche, close to the town of Phoenix, Mauritius (20°17′ S, 57°33′ E). This constitutes the first... -
Species composition and recruitment of tidal pool fishes in KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Lynnath E. Beckley --- Oceanographic Research Institute, South AfricaFishes occurring in a lower shore tidal pool near Durban, South Africa, were collected using rotenone at monthly intervals for a year. Eighteen teleost families and 50 lower taxa of fishes were recorded. Cryptic Tripterygiidae, Blenniidae and Gobiidae were particularly... -
Geographic variation in the morphology, echolocation and diet of the little free-tailed bat, Chaerephon pumilus (Molossidae)
Item type: Journal Article • Journal: African Zoology • Authors: F. Aspetsberger --- University of Bremen, FB 5 Geosciences, Germany Djuri Brandsen --- Department of Animal Ecology, Netherlands D. S. Jacobs --- Department of Zoology, South AfricaThe insectivorous bat Chaerephon pumilus has a wide distribution in Africa and displays considerable variation in the colour of its wings and venter.We investigated whether variation is also evident in its morphology, echolocation and diet by comparing a population of... -
Two new genera and a new species in the holothurian family Cucumariidae (Echinodermata: Holothuroidea)
Item type: Journal Article • Journal: African Zoology • Authors: Ahmed S. Thandar --- University of Durban-Westville, South Africa Mageshnee Natasen Moodley --- University of Durban-Westville, South AfricaTwo new genera, Trachycucumis and Trachasina, in the holothurian family Cucumariidae, are described. The former is erected to accommodate a new southern African cucumariid, here described as T. plettenbergi, from the southeast coast of South Africa, and the Trachythyone sp... -
Field identification of two morphologically similar bats, Miniopterus schreibersii natalensis and Miniopterus fraterculus (Chiroptera: Vespertilionidae)
Item type: Journal Article • Journal: African Zoology • Authors: Samantha Stoffberg --- Department of Zoology, South Africa David S. Jacobs --- Department of Zoology, South Africa Cassandra M. Miller-Butterworth --- Department of Zoology, South AfricaMiniopterus schreibersii natalensis and Miniopterus fraterculus are two morphologically similar, but genetically distinct, species of insectivorous bat that, more often than not, share roosts. Identifying these two species in the field is difficult because of an overlap in the ranges... -
A test of five mechanisms of species coexistence between rodents in a southern African savanna
Item type: Journal Article • Journal: African Zoology • Authors: M.R. Perrin --- School of Biological and Conservation Sciences, University of KwaZulu-Natal, South Africa B.P. Kotler --- Blaustein Institute for Desert Research, Mitrani Department of Desert Ecology, IsraelThe operation of five different mechanisms of species coexistence in a community of rodents was examined in a semi-arid Kalahari savanna in southern Africa. The two most common species were Tatera leucogaster (bushveld gerbil) and Rhabdomys pumilio (striped mouse). The... -
Age, growth and reproduction of largemouth bass, Micropterus salmoides, in Lake Manyame, Zimbabwe
Item type: Journal Article • Journal: African Zoology • Authors: C.A. Beamish --- Department of Ichthyology and Fisheries Science, South Africa A.J. Booth --- Department of Ichthyology and Fisheries Science, South Africa N. Deacon --- Department of Ichthyology and Fisheries Science, South AfricaA total of 478 largemouth bass, Micropterus salmoides (Lacépède, 1802), was sampled between September 1997 and July 2001 using hook-and-line in Lake Manyame, a water supply reservoir situated outside Harare, Zimbabwe. Male fish dominated the samples, possibly an effect of... -
A new species of Graemontia Lawrence, 1931, from the Western Cape, South Africa, with notes on the relationships of the genus (Opiliones: Laniatores: Triaenonychidae)
Item type: Journal Article • Journal: African Zoology • Authors: Adriano B. Kury --- Departamento de Invertebrados, BrazilGraemontia viridiceps n.sp., is described from the southwestern part of South Africa. This is the seventh species of the genus and the second species for which male genitalia are described and illustrated. A key is given to all species of... -
Biogeographical patterns in the fauna associated with southern African mussel beds
Item type: Journal Article • Journal: African Zoology • Authors: Wendy Hammond --- Centre for Invasion Biology and Marine Biology Research Institute, University of Cape Town, South Africa Charles Griffiths --- Centre for Invasion Biology and Marine Biology Research Institute, University of Cape Town, South AfricaMacrofauna communities colonizing intertidal mussel beds were sampled at seven sites between Swakopmund (Namibia) and Salt Rock (KwaZulu-Natal). Mean mussel cover, length, biomass and bed depth were all low in the southeast (former Transkei). Faunal abundance and biomass were minimal... -
Small mammal communities on cattle and game grazing areas in Namibia
Item type: Journal Article • Journal: African Zoology • Authors: C. Muck --- Max Planck Institute for Ornithology, Germany U. Zeller --- Museum für Naturkunde, GermanyThis study was conducted as part of the interdisciplinary biodiversity project BIOTA and describes small mammal communities on two differently managed farmlands (cattle and game farm) in Namibia over the course of one year. Species diversity, density and activity are... -
Description and ecology of larvae of Glossogobius callidus and Redigobius dewaali (Gobiidae) from temperate South African estuaries
Item type: Journal Article • Journal: African Zoology • Authors: Nadine A. Strydom --- South African Institute for Aquatic Biodiversity, South Africa Francisco J. Neira --- Marine Research Laboratories, Tasmanian Aquaculture and Fisheries Institute (TAFI), University of Tasmania, AustraliaThis paper describes the morphology and ecology of the larvae and early juveniles of two common gobiids in warm temperate South African estuaries. The early developmental stages of Glossogobius callidus and Redigobius dewaali were collected during plankton surveys in seven... -
The leaf-litter earthworm fauna (Annelida: Oligochaeta) of forests in Limpopo Province, South Africa: diversity, communities and conservation
Item type: Journal Article • Journal: African Zoology • Authors: Johanna L. Horn --- University of KwaZulu-Natal, South Africa J. Danuta Plisko --- Natal Museum, South Africa Michelle L. Hamer --- University of KwaZulu-Natal, South AfricaA qualitative survey of the leaf-litter earthworm fauna of 11 selected indigenous forests in Limpopo Province, South Africa, was conducted to identify the species present, to describe the communities and to assess the relationship between indigenous and exotic species. A... -
A new dendrochirotid sea cucumber from the west coast of South Africa (Echinodermata: Holothuroidea: Cucumariidae)
Item type: Journal Article • Journal: African Zoology • Authors: Mageshnee Natasen Moodley --- School of Biological and Conservation Sciences, University of KwaZulu-Natal, South AfricaFive specimens of a small cucumariid holothuroid collected between 18–32 m, from off St. Helena Bay on the west coast of Western Cape Province, South Africa, are new to science and here described. The presence of unequal tentacles, naked interambulacra,... -
A new species of Asemonea from Zambia (Araneae: Salticidae: Lyssomaninae)
Item type: Journal Article • Journal: African Zoology • Authors: Wanda Wesołows --- Institute of Zoology, Wroclaw University, PolandA new spider species from Zambia belonging to the poorly-known genus Asemonea, is described. It appears to be related to Asemonea maculata from the Ivory Coast. -
Rapid assessment of montane anuran communities in the Albertine Rift: Hyperolius castaneus Ahl, 1931 as an umbrella species for conservation
Item type: Journal Article • Journal: African Zoology • Authors: Ulrich Sinsch --- Institute of Integrated Sciences, Department of Biology, Germany Eli Greenbaum --- Department of Biological Sciences, U.S.A. Chifundera Kusamba --- Laboratoire d’Herpétologie, Département de Biologie, Democratic Republic of Congo Edgar Lehr --- Institute of Integrated Sciences, Department of Biology, GermanyThe species richness of seven montane anuran communities of the Albertine Rift was assessed with visual and acoustic transects. A total of 28 anuran species were detected. The highland anuran communities at (2000–2800 m) were dominated by up to nine... -
Acoustic niche partitioning in an anuran community inhabiting an Afromontane wetland (Butare, Rwanda)
Item type: Journal Article • Journal: African Zoology • Authors: Ulrich Sinsch --- Institute of Integrated Sciences, Department of Biology, Germany Katrin Lümkemann --- Institute of Integrated Sciences, Department of Biology, Germany Katharina Rosar --- Institute of Integrated Sciences, Department of Biology, Germany Christiane Schwarz --- Institute of Integrated Sciences, Department of Biology, Germany Maximilian Dehling --- Institute of Integrated Sciences, Department of Biology, GermanyThe species richness and calling activity of an anuran community inhabiting an agricultural wetland area at 1645 m a.s.l. near Butare, Rwanda, was assessed using visual and acoustic transects. The community included 15 species which were readily distinguishable using morphological,... -
The influence of fire on rodent abundance at the N’washitshumbe enclosure site, Kruger National Park, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: D.N. MacFadyen --- Mammal Research Institute, Department of Zoology and Entomology, South Africa N.L. Avenant --- Department of Mammalogy, South Africa M. van der Merwe --- Mammal Research Institute, Department of Zoology and Entomology, South Africa G.J. Bredenkamp --- Department of Plant Sciences, South AfricaThe relative population numbers of rodents were studied in nine habitats in and outside the N’washitshumbe enclosure site, Kruger National Park, before and after burning the firebreaks that surround the enclosure. Trap success was exceptionally high, and the field work... -
Monogenean parasite species descriptions from Labeo spp. hosts in the Vaal Dam, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Dionne Crafford --- Department of Zoology, South Africa Wilmien Luus-Powell --- School of Molecular and Life Sciences, Department of Biodiversity, South Africa Annemarié Avenant-Oldewage --- Department of Zoology, South AfricaSpecimens of Labeo capensis (n = 13) and Labeo umbratus (n = 26) from the Vaal Dam (South Africa) were collected and examined for gill and skin monogenean parasites. Three new Dactylogyrus and one new Dogielius species are described. Dactylogyrus... -
Rules of attraction: the role of bait in small mammal sampling at high altitude in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Armand D. Kok --- Department of Zoology and Entomology, South Africa Daniel M. Parker --- Department of Zoology and Entomology, South Africa Nigel P. Barker --- Botany Department, South AfricaBaits or lures are commonly used for surveying small mammal communities, not only because they attract large numbers of these animals, but also because they provide sustenance for trapped individuals. In this study we used Sherman live traps with five... -
Stable Pleistocene-era populations of Chaerephon pumilus (Chiroptera: Molossidae) in southeastern Africa do not use different echolocation calls
Item type: Journal Article • Journal: African Zoology • Authors: Theshnie Naidoo --- School of Life Sciences, University of KwaZulu-Natal, South Africa M. Corrie Schoeman --- School of Life Sciences, University of KwaZulu-Natal, South Africa Peter J. Taylor --- School of Life Sciences, University of KwaZulu-Natal, South Africa Steven M. Goodman --- Association Vahatra, Madagascar Jennifer M. Lamb --- School of Life Sciences, University of KwaZulu-Natal, South AfricaOur extension of the phylogenetic study of Taylor et al. (2009) on a larger, more geographically representative sample confirmed their finding of genetically distinct sympatric lineages of bats currently referred to as Chaerephon pumilus sensu lato (s.l.) (family Molossidae) in... -
Interspecific variation in the distribution of ungulates relative to human infrastructure surrounding Amboseli National Park
Item type: Journal Article • Journal: African Zoology • Authors: Marian Howe --- Department of Biology, Vassar College, U.S.A. Moses M. Okello --- The School for Field Studies, Center for Wildlife Management Studies, Kenya Jeremy M. Davis --- Department of Biology, Vassar College, U.S.A.The presence of humans and man-made structures may cause increased wariness in wildlife, causing displacement from traditional habitat ranges. Potential species differences in such responses could affect the composition of wildlife communities around human settlements. We examined the position of... -
Inadequate taxonomy and highly divergent COI haplotypes in laboratory and field populations of earthworms used in ecotoxicology. A case study
Item type: Journal Article • Journal: African Zoology • Authors: Patricks Voua Otomo --- North-West University, South Africa Mark S. Maboeta --- North-West University, South Africa Carlos Bezuidenhout --- North-West University, South AfricaDNA barcoding was used to investigate the phylogenetic delimitations of Eisenia sp. populations used in ecotoxicological research in South Africa. A total of three focal groups (used in published works) and two non-focal groups were assessed. These focal groups, including... -
An exploratory investigation of the fish communities associated with reefs on the central Agulhas Bank, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Albrecht Götz --- Elwandle Node, South African Environmental Observation Network (SAEON), South Africa Sven E. Kerwath --- Fisheries Research, Department of Agriculture, South Africa Toufiek Samaai --- Department of Environmental Affairs, South Africa Charlene da Silva --- Fisheries Research, Department of Agriculture, South Africa Christopher G. Wilke --- Fisheries Research, Department of Agriculture, South AfricaDespite their ecological and economic importance, the temperate reef habitats of the central Agulhas Bank remain poorly studied. From 2008 to 2010, multiple stations grouped into six general sites of varying depth, profile and distance offshore, were surveyed. A combination... -
Allelopathic effects of invasive Eucalyptus camaldulensis on germination and early growth of four native species in the Western Cape, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Sheunesu Ruwanza --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa Mirijam Gaertner --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa Karen J Esler --- Centre for Invasion Biology, Department of Conservation Ecology and Entomology, South Africa David M Richardson --- Centre for Invasion Biology, Department of Botany and Zoology, South AfricaEucalyptus camaldulensis Dehnh. (red river gum; Myrtaceae) is an invasive tree in riparian habitats of the Western Cape, South Africa, where it replaces indigenous vegetation and affects ecosystem functioning. These invasions lead to changes in river geomorphology and reduction in... -
Southern African pasture and forage science entering the 21st century: past to present
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Wayne F Truter --- Department of Plant Production and Soil Science, South Africa Philip R Botha --- Directorate Plant Sciences, Western Cape Department of Agriculture, South Africa Chris S Dannhauser --- Grass SA, Waverley, South Africa Barbara V Maasdorp --- Department of Crop Science, Zimbabwe Neil Miles --- South African Sugarcane Research Institute, South Africa Albert Smith --- Stats4science, South Africa Hennie A Snyman --- Department of Animal, Wildlife and Grassland Sciences, South Africa Neil M Tainton --- Amber Valley, South AfricaGiven the global challenges of mitigating and alleviating land degradation and ensuring food security, particularly through protein production, pasture and forage science together with rangeland science will remain imperative to sustainable livestock production systems. Recognising the scientific principles developed in... -
Seasonal variations in diet selection of Nguni goats: effects of physical and chemical traits of browse
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Sylvester W Fomum --- Department of Animal and Poultry Sciences, School of Agriculture, Earth and Environmental Sciences, South Africa Peter F Scogings --- Department of Agriculture, South Africa Luthando Dziba --- CSIR, South Africa Ignatius V Nsahlai --- Department of Animal and Poultry Sciences, School of Agriculture, Earth and Environmental Sciences, South AfricaGoats select some browse species more than others, given options. Seasonal trends of diet selection of Nguni goats indexed by intake were investigated in cafeteria-style experiments. The relationships between diet selection and plant chemical/physical traits of Vachellia nilotica, Vachellia robusta,... -
Assessing the utility of ALOS PALSAR and SPOT 4 to predict timber volumes in even-aged Eucalyptus plantations located in Zululand, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Riyad Ismail --- Sappi Forests, South Africa Horst Kassier --- Sappi Forests, South Africa Morries Chauke --- Sappi Forests, South Africa Francesco Holecz --- Sarmap SA, Switzerland Nico Hattingh --- Sappi Forests, South AfricaIn commercial forestry, regular terrestrial enumerations of the growing stock are required for the valuation, sustain-able management and planning of current and future timber supplies. In this study we examined whether the combination of synthetic aperture radar (ALOS PALSAR) and... -
Current conservation status of the Blue Swallow Hirundo atrocaerulea Sundevall 1850 in Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Steven W Evans --- SARCHI Chair on Biodiversity Value and Change, School of Mathematical and Natural Sciences, South Africa Ara Monadjem --- Department of Biological Sciences, South Africa Lizanne Roxburgh --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South Africa Andrew E McKechnie --- Percy FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, Department of Zoology and Entomology, South Africa Ellizabeth M Baker --- Tanzanian Bird Atlas Project, United Republic of Tanzania Robert B Kizungu --- Organisation of Biodiversity Information and Conservation in Congo Kinshasa, Democratic Republic of Congo Ian T Little --- Endangered Wildlife Trust, South Africa Fadzai Matsvimbo --- BirdLife Zimbabwe, Zimbabwe Ronald K Mulwa --- National Museums of Kenya and Nature Kenya, Kenya Daniel Mwizabi --- Zambian Wildlife Authority, Zambia Dianah Nalwanga --- Nature Uganda, Uganda Kariuki Ndang'ang'a --- BirdLife International, Africa Partnership Secretariat, Kenya Leigh Combrink --- Endangered Wildlife Trust, South AfricaThe global Blue Swallow Hirundo atrocaerulea was classified as Vulnerable in 2010 on account of its small and rapidly declining population estimated at less than 1 500 pairs. We undertook this study to gain a better understanding of the current... -
A comparison of point counts with a new acoustic sampling method: a case study of a bird community from the montane forests of Mount Cameroon
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Ondřej Sedláček --- Department of Ecology, Faculty of Science, Czech Republic Jana Vokurková --- Department of Ecology, Faculty of Science, Czech Republic Michal Ferenc --- Department of Ecology, Faculty of Science, Czech Republic Eric Nana Djomo --- Department of Ecology, Faculty of Science, Czech Republic Tomáš Albrecht --- Department of Zoology, Faculty of Science, Czech Republic David Hořák --- Department of Ecology, Faculty of Science, Czech RepublicAcoustic signals are frequently used for estimating avian species richness, abundance and community composition. However, sampling by traditional methods of bird surveys is often limited by availability of experienced researchers in the field, especially in the tropics. New bioacoustic approaches... -
Bird diversity in the savanna habitats of Akagera National Park, Rwanda, in the post-war recovery period
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Callixte Gatali --- Department of Biological and Environmental Sciences, Sweden Kjell Wallin --- Department of Biological and Environmental Sciences, SwedenThe biodiversity of Akagera National Park (ANP), Rwanda, has reportedly been declining since 1990 due to conflict and war in the country between 1990 and 1994. In this paper, we describe bird diversity in the post-war recovery period. We used... -
A rapid assessment of species-specific bird strike risk at the Kotoka International Airport in Accra, Ghana
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Lars H Holbech --- Department of Animal Biology and Conservation Science, Ghana Augustus Asamoah --- Ghana Wildlife Society, Ghana Erasmus H Owusu --- Department of Animal Biology and Conservation Science, GhanaThe Kotoka International Airport in Accra, the capital city of Ghana, has in recent years been confronted with increased presence of birds posing great challenges to aviation safety due to a high risk of bird strikes. As part of measures... -
First Red-billed Quelea breeding record in the winter rainfall region of South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: H Dieter Oschadleus --- Animal Demography Unit, Department of Biological Sciences, South AfricaThe Red-billed Quelea Quelea quelea is a serious pest of agricultural crops throughout most of sub-Saharan Africa. Since the 1980s, it has expanded its range into the Eastern Cape and Western Cape, South Africa, facilitated by changes in agricultural practices... -
Reef fishes recruited at midwater coral nurseries consume biofouling and reduce cleaning time in Seychelles, Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Frias-Torres --- Nature Seychelles, Republic of Seychelles H Goehlich --- Nature Seychelles, Republic of Seychelles C Reveret --- Nature Seychelles, Republic of Seychelles PH Montoya-Maya --- Nature Seychelles, Republic of SeychellesIn coral reef restoration, coral gardening involves rearing coral fragments in underwater nurseries prior to transplantation. These nurseries become fish-aggregating devices and attract biofouling. We hypothesised that: (1) the presence of corals at a nursery is critical to recruit fish... -
Spatial and seasonal patterns of European short-snouted seahorse Hippocampus hippocampus distribution in island coastal environments
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Otero-Ferrer --- Grupo de Investigación en Acuicultura, Spain R Herrera --- Dirección General de Ordenación del Territorio, Spain VM Tuset --- Instituto de Ciéncias del Mar (CSIC), Spain J Socorro --- Grupo de Investigación en Acuicultura, Spain L Molina --- Grupo de Investigación en Acuicultura, SpainThis study represents the first report on seahorses in the Macaronesian islands (North-East Atlantic), determining the spatial and seasonal abundance, population structure and physical appearance of European short-snouted seahorse Hippocampus hippocampus. Animals were surveyed off Gran Canaria Island in two... -
New species of Coccidia (Apicomplexa: Eimeriidae) from rodents from the Ruwenzori Mountains, Uganda
Item type: Journal Article • Journal: African Zoology • Authors: Jan R. Šlapeta --- Department of Parasitology, Czech Republic David Modrý --- Department of Parasitology, Czech Republic Břetislav Koudela --- Department of Parasitology, Czech RepublicThree new species of Coccidia (Apicomplexa: Eimeriidae) are described from rodents of the Ruwenzori Mountains, Uganda. Oocysts of Eimeria livingstonei n.sp., found in Lophuromys flavopunctatus Thomas, 1888, are spindle-shaped, 19.6 (17.0–22.0) × 13.6 (12.5–15.0) µm, with a bilayered, moderately rough... -
Fish associated with artificial reefs in False Bay, South Africa: a preliminary survey
Item type: Journal Article • Journal: African Zoology • Authors: Y.A.R.G Lechanteur --- Marine Biology Research Institute, South Africa C.L. Griffiths --- Marine Biology Research Institute, South AfricaThis study compares the suprabenthic fish assemblages inhabiting eight shipwrecks in False Bay with those found on adjacent natural reefs. 3411 fishes of 18 species were recorded on the wrecks. Species densities recorded on wrecks in both shallow and deep... -
Invasion of Langebaan Lagoon, South Africa, by Mytilus galloprovincialis – effects on natural communities
Item type: Journal Article • Journal: African Zoology • Authors: T.B. Robinson --- Zoology Department and Marine Biology Research Institute, South Africa C.L. Griffiths --- Zoology Department and Marine Biology Research Institute, South AfricaIn 1992 the invasive mussel Mytilus galloprovincialis began establishing beds on the centre sandbanks of Langebaan Lagoon. This global invader had previously been restricted to rocky shores along the South African coastline. In order to investigate the effect of the... -
Distribution of veld rat sibling species Aethomys chrysophilus and Aethomys ineptus (Rodentia: Muridae) in southern Africa
Item type: Journal Article • Journal: African Zoology • Authors: A.V. Linzey --- Department of Biology, U.S.A. M.H. Kesner --- Department of Biology, U.S.A. C.T. Chimimba --- Department of Zoology and Entomology, South Africa C. Newbery --- Kgaswane Mountain Reserve, South AfricaSibling species Aethomys chrysophilus (de Winton) and Aethomys ineptus Thomas and Wroughton are indistinguishable in external morphology. Although their combined geographic range extends over a large area of southern Africa, their respective distributions are uncertain. We have assembled a database... -
Affinities of some common estuarine macroinvertebrates to salinity and sediment type: empirical data from Eastern Cape estuaries, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Peter R. Teske --- Department of Zoology, South Africa Tris H. Wooldridge --- Department of Zoology, South AfricaFourteen species of subtidal macrobenthos present in thirteen Eastern Cape estuaries, South Africa, were compared with regard to correlations with two important environmental variables (salinity and sediment mud content). Species were divided into five different faunal components based on their... -
The distribution of two medically and agriculturally important cryptic rodent species, Mastomys natalensis and M. coucha (Rodentia: Muridae) in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: F.P. Venturi --- Department of Zoology and Entomology, South Africa C.T. Chimimba --- Department of Zoology and Entomology, South Africa R.J. van Aarde --- Department of Zoology and Entomology, South Africa N. Fairall --- Department of Zoology and Entomology, South AfricaThe medically and agriculturally important Natal multimammate mouse, Mastomys natalensis (A. Smith, 1834) and the multimammate mouse, M. coucha (A. Smith, 1836), are sibling species and cannot easily be distinguished morphologically. As a consequence, their respective distributional ranges across South... -
First record and redescription of the introduced sea anemone Sagartia ornata (Holdsworth, 1855) (Cnidaria: Actiniaria: Sagartiidae) from South Africa
Item type: Journal Article • Journal: African Zoology • Authors: F.H. Acuña --- Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Argentina A.C. Excoffon --- Departamento de Ciencias Marinas, Facultad de Ciencias Exactas y Naturales, Argentina C.L. Griffiths --- Marine Biology Research Institute, University of Cape Town,, South AfricaThe brooding sea anemone Sagartia ornata is reported from South Africa for the first time and is redescribed. The species is abundant intertidally in Langebaan Lagoon, where it attaches to stones shal lowly buried in sediment. It is probably a... -
Two new species of ptyctimous mites (Acari: Oribatida) from Ghana
Item type: Journal Article • Journal: African Zoology • Authors: Wojciech Niedbala --- Department of Animal Taxonomy and Ecology, PolandTwelve species of ptyctimous mites (Acari: Oribatida) are recorded from Ghana for the first time. Two new species are described and illustrated: Phthiracarus bicarinatus sp. nov. and Austrophthiracarus lacunosus sp. nov. Three species are recorded from West Africa for the... -
Reproductive seasonality of southern African inshore and estuarine invertebrates – a biogeographic review
Item type: Journal Article • Journal: African Zoology • Authors: Alan N. Hodgson --- Department of Zoology and Entomology, South AfricaA literature review reveals that reproductive seasonality of less than 1% of South Africa’s inshore marine invertebrates has been studied. Approximately 95% of studies have been on large, long-lived, gonochoristic, iteroparous species, and nearly 50% on molluscs. There is only... -
Oysters as vectors of marine aliens, with notes on four introduced species associated with oyster farming in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: T.M. Haupt --- Centre for Invasion Biology and Marine Biology Research Centre, South Africa C.L. Griffiths --- Centre for Invasion Biology and Marine Biology Research Centre, South Africa T.B. Robinson --- Centre for Invasion Biology and Marine Biology Research Centre, South Africa A.F.G. Tonin --- Striker Fishing (Pty) Ltd, South AfricaTranslocated oysters are well known to act as vectors of marine alien species, but to date this topic has received scant attention in South Africa, despite the fact that oysters have been imported into this region since 1894. Surveys of... -
The phylogenetic affinities of Trachylepis sulcata nigra and the intraspecific evolution of coastal melanism in the western rock skink
Item type: Journal Article • Journal: African Zoology • Authors: Daniel M. Portik --- Department of Biology, U.S.A. Aaron M. Bauer --- Department of Biology, U.S.A. Todd R. Jackman --- Department of Biology, U.S.A.The phylogenetic affinities of the melanistic subspecies Trachylepis sulcata nigra have never been investigated, and it was unclear if this subspecies represented a locally adapted population or a distinct species. Sequences from the nuclear marker RAG-1 (1149 bp), two novel... -
Ecology of metazoan parasites of Clarias gariepinus (Osteichthyes: Clariidae) from the Nwanedi-Luphephe Dams of the Limpopo River System, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: G.N. Madanire-Moyo --- Department of Biodiversity, South Africa W.J. Luus-Powell --- Department of Biodiversity, South Africa P.A.S. Olivier --- Department of Biodiversity, South AfricaA total of 7748 parasites, belonging to 17 metazoan species, was recorded from 45 specimens of Clarias gariepinus (Burchell, 1822) caught from the Nwanedi-Luphephe Dams, Limpopo River System, South Africa. All host specimens were parasitized by one or more metazoan... -
Towards a standardized and optimized protocol for rapid biodiversity assessments: spider species richness and assemblage composition in two savanna vegetation types
Item type: Journal Article • Journal: African Zoology • Authors: M.I. Muelelwa --- Centre for Invasion Biology and Department of Zoology, South Africa S.H. Foord --- Centre for Invasion Biology and Department of Zoology, South Africa A.S. Dippenaar-Schoeman --- ARC Plant Protection Research Institute, South Africa E.M. Stam --- National Zoological Gardens of South Africa, South AfricaA semi-quantitative inventory of spider diversity was done in the Blouberg Nature Reserve (BNR) and Western Soutpansberg Conservancy (WSC) situated in the Savanna Biome of the Limpopo Province, South Africa. Two hundred and ninety-six samples of one person-hour work each,... -
Adult African sharptooth catfish, Clarias gariepinus, population dynamics in a small invaded warm-temperate impoundment
Item type: Journal Article • Journal: African Zoology • Authors: Anthony J. Booth --- Department of Ichthyology and Fisheries Science, South Africa Graham R.L. Traasg --- Department of Ichthyology and Fisheries Science, South Africa Olaf L.F. Weyl [AN0002]African sharptooth catfish, Clarias gariepinus, is a successful aquatic invader as it has a eurytopic physiology, is highly fecund, grows quickly and has an omnivorous diet. Despite possible threats that include predation of and competition with indigenous species, habitat degradation,... -
Effects of a fast-burning spring fire on the ground-dwelling spider assemblages (Arachnida: Araneae) in a central South African grassland habitat
Item type: Journal Article • Journal: African Zoology • Authors: Charles R Haddad --- Department of Zoology and Entomology, South Africa Stefan H Foord --- Department of Zoology, Chair in Biodiversity Value and Change, South Africa René Fourie --- Department of Zoology and Entomology, South Africa Anna S Dippenaar-Schoeman --- Biosystematics: Arachnology, Agricultural Research Council–Plant Protection Research Institute, South AfricaFire is widely used as a management strategy in grasslands to maintain vegetation structure and improve grazing quality for large herbivores. The impacts of burning on invertebrates in South Africa remain poorly understood. A study was initiated in spring 2005... -
Digestive efficiency of indigenous and invasive avian species fed fruit of invasive alien plants in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Vuyisile Thabethe --- DST–NRF Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, South Africa Amy-Leigh Wilson --- DST–NRF Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, South Africa Lorinda A Hart --- DST–NRF Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, South Africa Colleen T Downs --- DST–NRF Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, South AfricaMany highly invasive plant species produce fleshy fruit that are consumed and dispersed by frugivorous birds. However, little is known about assimilation efficiency of invasive fruit by indigenous and invasive avian species. We investigated whether indigenous Knysna (Tauraco corythaix) and... -
Ecology, fish and fishery of Lake Liambezi, a recently refilled floodplain lake in the Zambezi Region, Namibia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RA Peel --- Department of Ichthyology and Fisheries Science, Namibia D Tweddle --- South African Institute for Aquatic Biodiversity, Namibia EK Simasiku --- Department of Wildlife Management and Ecotourism, Katima Mulilo Campus, South Africa GD Martin --- Department of Zoology and Entomology, South Africa J Lubanda --- Ministry of Fisheries and Marine Resources, Namibia CJ Hay --- Department of Biological Sciences, Namibia OLF Weyl --- South African Institute for Aquatic Biodiversity, South AfricaLake Liambezi (300 km2) refilled in 2009 after a prolonged 22-year dry period. Its aquatic macrophyte populations, fish fauna and fishery shortly after refilling are described. The emergent aquatic macrophyte Phragmites australis formed dense stands covering large parts of the lake,... -
Occurrence, abundance and distribution of benthic macroinvertebrates in the Nyando River catchment, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DA Abong'o --- Department of Chemistry, School of Physical Sciences, Kenya SO Wandiga --- Department of Chemistry, School of Physical Sciences, Kenya IO Jumba --- Department of Chemistry, School of Physical Sciences, Kenya PJ Van den Brink --- Aquatic Ecology and Water Quality Management Group, The Netherlands BB Naziriwo --- Department of Chemistry, Uganda VO Madadi --- Department of Chemistry, School of Physical Sciences, Kenya GA Wafula --- Department of Chemistry, School of Physical Sciences, Kenya P Nkedi-Kizza --- Soil and Water Science Department, USA H Kylin --- Department of Water and Environmental Studies, SwedenA baseline study was conducted of the occurrence of macroinvertebrates at 26 sites in the Nyando River catchment in 2005–2006. A total of 13 orders and 16 families of Arthropoda, Mollusca, Platyhelminthes and Annelida were collected, with the order Ephemeroptera... -
First survey of fishes in the Betty's Bay Marine Protected Area along South Africa's temperate south-west coast
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Roberson --- Marine Research Institute, Department of Biological Sciences, South Africa H Winker --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa C Attwood --- Marine Research Institute, Department of Biological Sciences, South Africa L De Vos --- Marine Research Institute, Department of Biological Sciences, South Africa C Sanguinetti --- Percy FitzPatrick Institute of African Ornithology, South Africa A Götz --- Elwandle Node, South AfricaThis first survey of fish in the Betty's Bay Marine Protected Area (MPA), on the south coast of South Africa, was conducted using baited remote underwater video systems (BRUVs). A total of 58 deployments recorded 42 species in 20 km2, including... -
Seasonal variation in diversity and abundance of understorey birds in Bunduki Forest Reserve, Tanzania: evaluating the conservation value of a plantation forest
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Chacha Werema --- Department of Zoology and Wildlife Conservation, Tanzania Kim M Howell --- Department of Zoology and Wildlife Conservation, TanzaniaPlantation forests generally support lower bird diversity than natural forests. However, in some instances the plantations have been found to provide suitable habitat for a number of bird species. In the Eastern Arc Mountains, there is limited knowledge how understorey... -
Diet of the Silvery-cheeked Hornbill Bycanistes brevis during the breeding season in the East Usambara Mountains, Tanzania
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Norbert J Cordeiro --- Department of Biological, Chemical, and Physical Sciences, USA Joshua T Campbell --- Department of Biological, Chemical, and Physical Sciences, USA Henry J Ndangalasi --- Department of Botany, TanzaniaThe breeding season diet and nesting characteristics of the Silvery-cheeked Hornbill Bycanistes brevis are poorly known. To further understand these aspects of the breeding biology of this hornbill species, 14 nests were studied in and around Amani Nature Reserve located... -
The effects of fire-breaks on plant diversity and species composition in the grasslands of the Loskop Dam Nature Reserve, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Laura M Bachinger --- Department of Plant Science, South Africa Leslie R Brown --- Applied Behavioural Ecology and Ecosystem Research Unit, Department of Environmental Sciences, South Africa Margaretha W van Rooyen --- Department of Plant Science, South AfricaThere is a dearth of knowledge on the effects of annual burning of fire-breaks on species composition, plant diversity and soil properties. Whittaker's plant diversity technique was used to gather data on species composition and diversity in four grassland communities... -
DNA barcoding for identification of cryptic species in the field and existing museum collections: a case study of Aethomys and Micaelamys (Rodentia: Muridae)
Item type: Journal Article • Journal: African Zoology • Authors: Metlholo Andries Phukuntsi --- National Zoological Gardens of South Africa, South Africa Helene Brettschneider --- National Zoological Gardens of South Africa, South Africa Desiré L Dalton --- National Zoological Gardens of South Africa, South Africa Teresa Kearney --- Vertebrate Department, Ditsong National Museum of Natural History, South Africa Jacqueline Badenhorst --- Department of Biotechnology and Food Technology, Tshwane University of Technology, South Africa Antoinette Kotze --- National Zoological Gardens of South Africa, South AfricaDNA barcoding has been proposed as a method for species identification. However, this method has been criticised for its over-reliance on a single mitochondrial gene. In this study, four mitochondrial gene regions and one nuclear gene region were used to... -
Long-term physical, chemical and biological changes in a small, urban estuary
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Viskich --- Department of Biological Sciences and Centre for Invasion Biology, South Africa CL Griffiths --- Department of Biological Sciences and Centre for Invasion Biology, South Africa C Erasmus --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries, South Africa S Lamberth --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries, South AfricaThe Diep River estuary, a small estuary in suburban Cape Town, South Africa, has been subject to disturbance for centuries. Several earlier studies have documented conditions in the system, providing baselines against which to measure more recent changes. This study:... -
Back to the future: reflections and directions of South African marine bioinvasion research
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ME Alexander --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa CA Simon --- Department of Botany and Zoology, South Africa CL Griffiths --- Centre for Invasion Biology, Department of Biological Sciences, South Africa K Peters --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa S Sibanda --- Marine Programme, South Africa S Miza --- Marine Programme, South Africa B Groenewald --- Marine Programme, South Africa P Majiedt --- Marine Programme, South Africa KJ Sink --- Marine Programme, South Africa TB Robinson --- Centre for Invasion Biology, Department of Botany and Zoology, South AfricaBiological invasions continue to increase around the world, with impacts on many coastal marine systems. Here we review the South African marine invasion literature which, despite the field being relatively new, has grown to have significant presence in both the... -
Lost in translation? Standardising the terminology used in marine invasion biology and updating South African alien species lists
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TB Robinson --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa ME Alexander --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa CA Simon --- Department of Botany and Zoology, South Africa CL Griffiths --- Centre for Invasion Biology, Department of Biological Sciences, South Africa K Peters --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa S Sibanda --- Marine Programme, South Africa S Miza --- Marine Programme, South Africa B Groenewald --- Marine Programme, South Africa P Majiedt --- Marine Programme, South Africa KJ Sink --- Marine Programme, South AfricaConfusion between terms and ambiguities among definitions have long plagued the field of invasion biology. One result is disruption in flow of information from researchers to policy-makers and managers who rely on science to inform regulatory frameworks and management actions... -
Past and present fish species recorded in the estuarine Lake Ichkeul, northern Tunisia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Shaiek --- Research Unit Ecosystems and Aquatic Resources (UR13AGRO1), National Agronomy Institute of Tunisia (INAT), Tunisia C Fassatoui --- Research Unit Ecosystems and Aquatic Resources (UR13AGRO1), National Agronomy Institute of Tunisia (INAT), Tunisia MS Romdhane --- Research Unit Ecosystems and Aquatic Resources (UR13AGRO1), National Agronomy Institute of Tunisia (INAT), TunisiaLake Ichkeul in northern Tunisia is a Ramsar site, a MAB Biosphere Reserve and a UNESCO World Heritage Site. The system is one of the most important coastal wetlands in North Africa, especially as an over-wintering area for migratory birds,... -
Nile perch and the transformation of Lake Victoria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Taabu-Munyaho --- National Fisheries Resources Research Institute (NaFIRRI), Uganda BE Marshall --- Lake Victoria Fisheries Organisation (LVFO), New Zealand T Tomasson --- United Nations University – Fisheries Training Programme (UNU–FTP), Marine Research Institute, Iceland G Marteinsdottir --- Institute of Biology, IcelandThe transformation of Lake Victoria that began in 1980 followed the population explosion of Nile perch Lates niloticus, causing the apparent extirpation of 500+ endemic haplochromine species and dramatic physico-chemical changes. Officially introduced in 1962–1963, but present earlier, the reasons... -
Product diversification in South Africa’s commercial timber plantations: a way to mitigate investment risk
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Verena C Griess --- Department of Forest Resources Management, Faculty of Forestry, Canada Britta Uhde --- Department of Forest and Wood Science, South Africa Cori Ham --- Institute of Forest Management, Germany Thomas Seifert --- Institute of Forest Management, GermanyWe used the portfolio method to examine how a forest company can lower investment risk by producing a mix of timber products. We derived optimum combinations of pine (Pinus patula) saw timber production and eucalypt (Eucalyptus grandis) pulpwood production at... -
Clonal propagation of Pterocarpus santalinoides L'Hér. ex DC.: the effect of substrate, cutting type, genotype and auxin
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Catherine Ky-Dembele --- World Agroforestry Centre – West Africa and Central Regional Office - Sahel Node – BP, Mali Jules Bayala --- World Agroforestry Centre – West Africa and Central Regional Office - Sahel Node – BP, Mali Antoine Kalinganire --- World Agroforestry Centre – West Africa and Central Regional Office - Sahel Node – BP, Mali Fatoumata Tata Traoré --- World Agroforestry Centre – West Africa and Central Regional Office - Sahel Node – BP, Mali Bréhima Koné --- World Agroforestry Centre – West Africa and Central Regional Office - Sahel Node – BP, Mali Alain Olivier --- Université Laval, CanadaPterocarpus santalinoides is a multipurpose tree species, native to Africa and South America. However, excessive pruning for fodder is jeopardising its seed production leading to poor regeneration in the Sahel region. Efficient vegetative propagation techniques may overcome this concern. To... -
Additions to the barnacle (Crustacea: Cirripedia) fauna of South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Aiden Biccard --- Centre for Invasion Biology and Department of Biological Sciences, South Africa Charles L Griffiths --- Centre for Invasion Biology and Department of Biological Sciences, South AfricaThe purpose of this paper is to document recent additions to the South African barnacle (Cirripedia) fauna. New species records were obtained by examining accumulated collections of unidentified material in the Iziko South African Museum, as well as via material... -
Subtropical demersal fish communities on soft sediments in the KwaZulu-Natal Bight, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ST Fennessy --- Oceanographic Research Institute, South AfricaThe project entitled Ecosystem Processes in the KwaZulu-Natal Bight, part of the African Coelacanth Ecosystem Programme (ACEP), enabled the description of demersal fish communities over soft sediments, including from some areas that have rarely been explored in the subtropical waters... -
Etmopterus alphus n. sp.: a new lanternshark (Squaliformes: Etmopteridae) from the south-western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: DA Ebert --- Pacific Shark Research Center, USA N Straube --- Bavarian State Collection of Zoology, Germany RW Leslie --- Branch: Fisheries Management, South Africa S Weigmann --- University of Hamburg, GermanyA new species of lanternshark, Etmopterus alphus (Squaliformes: Etmopteridae), is described from the south-western Indian Ocean. The new species resembles other members of the ‘Etmopterus lucifer’ clade in having linear rows of dermal denticles and most closely resembles E. molleri... -
Protection of marine birds and turtles at St Brandon’s Rock, Indian Ocean, requires conservation of the entire atoll
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: SW Evans --- Research Unit: Environmental Sciences and Management, South Africa N Cole --- Durrell Wildlife Conservation Trust, Les Augrès Manor, Channel Islands H Kylin --- Research Unit: Environmental Sciences and Management, South Africa NS Choong Kwet Yive --- Department of Chemistry, V Tatayah --- Mauritian Wildlife Foundation, Mauritius J Merven --- Raphael Fishing Co. Ltd, Mauritius H Bouwman --- Research Unit: Environmental Sciences and Management, South AfricaA survey of seabirds and turtles at St Brandon’s Rock, 400 km north of Mauritius, was undertaken in 2010. We estimated that 1 084 191 seabirds comprising seven breeding species and excluding non-breeders were present at the archipelago and we... -
Alarming decline and range reduction of the highly threatened Great Bustard Otis tarda in Morocco
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Juan Carlos Alonso --- Department of Evolutionary Ecology, Spain Carlos Palacín --- Department of Evolutionary Ecology, Spain Alejandro Onrubia --- Fundación MIGRES, Spain Rachid Aboulouafae --- SPCDRN/DREFLCD du Rif, Haut Commissariat aux Eaux et Forêts et à la Lutte Contre la Désertification (HCEFLCD), Morocco Mohamed Amezian --- GREPOM Unité régionale Tanger-Tétouan, Morocco Abdelaziz El Idrissi Essougrati --- GREPOM Unité régionale de Rabat, Morocco Rachid El Khamlichi --- GREPOM Unité régionale Tanger-Tétouan, Morocco Mohamed Noaman --- Service de la Conservation de la Flore et de la Faune Sauvage, MoroccoA Great Bustard Otis tarda survey carried out in spring 2015 in Morocco confirmed the decline of this highly endangered population. Bustards were only seen at two of the seven leks occupied ten years ago. The total number of birds... -
The influence of food abundance, food dispersion and habitat structure on territory selection and size of an Afrotropical terrestrial insectivore
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: William D Newmark --- Natural History Museum of Utah, USA Thomas R Stanley --- US Geological Survey, USAMost tropical insectivorous birds, unlike their temperate counterparts, hold and defend a feeding and breeding territory year-around. However, our understanding of ecological factors influencing territory selection and size in tropical insectivores is limited. Here we examine three prominent hypotheses relating... -
Disentangling the identities and distribution patterns of the introduced beachfleas Orchestia gammarellus and Platorchestia platensis (Crustacea: Amphipoda: Talitridae) in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Natalie Diemer --- Department of Biological Sciences and Centre for Invasion Biology, South Africa Charles L Griffiths --- Department of Biological Sciences and Centre for Invasion Biology, South Africa Alan Hodgson --- Department of Zoology and Entomology, South AfricaTwo introduced beachfleas, Orchestia gammarellus and Platorchestia platensis, have been recorded from South Africa, but have been misidentified by some earlier researchers and, prior to this study, each was also known from just a few, scattered observations, such that their... -
Phylogeography of the pelagic fish Seriola lalandi at different scales: confirmation of inter-ocean population structure and evaluation of southern African genetic diversity
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: BL Swart --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa AE Bester-van der Merwe --- Molecular Breeding and Biodiversity Group, Department of Genetics, South Africa SE Kerwath --- Department of Agriculture, South Africa R Roodt-Wilding --- Molecular Breeding and Biodiversity Group, Department of Genetics, South AfricaThe study investigated the global and regional phylogeography of the yellowtail kingfish Seriola lalandi by examining genetic diversity and population genetic structure of this species at inter-and intra-ocean level and on a regional scale. DNA fragments of two mitochondrial genes,... -
Livestock grazing has minimal effect on the species richness and diversity of semi-arid shrubland in the Western Little Karoo, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Nelmarie Saayman --- Directorate of Plant Sciences, Western Cape Department of Agriculture, South Africa Craig Morris --- Agricultural Research Council–Livestock Business Division, Range and Forage Unit, c/o School of Biological and Conservation Sciences, South Africa Hannes Botha --- Directorate of Plant Sciences, Western Cape Department of Agriculture, South AfricaThe Succulent Karoo, one of two arid biodiversity hotspots in the world, is known for its high plant species richness, but little is known about the influence of topography and how it mediates the potentially deleterious effects of grazing. Changes... -
Is the grazing tolerance of mesic decreaser and increaser grasses altered by soil nutrients and competition?
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Craig D Morris --- Agricultural Research Council – Animal Production Institute (ARC-API), South AfricaAn ability to tolerate recurrent defoliation likely plays a role in the compositional shift from decreaser to increaser species with overgrazing of mesic grassland, but the grazing tolerance of local species has not been extensively studied. The growth response of... -
Cryptic variation in the Moroccan high altitude lizard Atlantolacerta andreanskyi (Squamata: Lacertidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Mafalda Barata --- , , Portugal Ana Perera --- , , Portugal D. James Harris --- , , PortugalAtlantolacerta andreanskyi is a mountain specialist lacertid lizard, restricted to areas above 2400 m of the High Atlas Mountains of Morocco, with apparently no geographic connection between different populations. In a recent molecular study, populations from A. andreanskyi collected across... -
Factors determining the occurrence of Pleurodeles poireti (Caudata: Salamandridae) on Edough Peninsula, northeastern Algeria
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jihène Ben Hassine --- , , Tunisia Daniel Escoriza --- , , Spain Badis Bakhouche --- , , AlgeriaPleurodeles poireti is one of the lesser-known amphibians in the Mediterranean region. This species is strictly endemic to the Edough Peninsula in northeastern Algeria. Here we investigated the factors that determine the presence of P. poireti, by affecting its selection... -
Differences in nitrogen cycling and soil mineralisation between a eucalypt plantation and a mixed eucalypt and Acacia mangium plantation on a sandy tropical soil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Sogni Viviane Tchichelle --- Centre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles, Republic of the Congo Daniel Epron --- Centre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles, Republic of the Congo Fidèle Mialoundama --- Université Marien NGouabi, Republic of the Congo Lydie Stella Koutika --- Centre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles, Republic of the Congo Jean-Michel Harmand --- CIRAD, France Jean-Pierre Bouillet --- CIRAD, France Louis Mareschal --- Centre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles, Republic of the CongoSustainable wood production requires appropriate management of commercial forest plantations. Establishment of industrial eucalypt plantations on poor sandy soils leads to a high loss of nutrients including nitrogen (N) after wood harvesting. An ecological intensification of eucalypt plantations was tested... -
Modelling diameter growth, mortality and recruitment of trees in miombo woodlands of Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Wilson A Mugasha --- Department of Ecology and Natural Resource Management, Norway Tron Eid --- Department of Ecology and Natural Resource Management, Norway Ole M Bollandsås --- Department of Ecology and Natural Resource Management, Norway Lawrence Mbwambo --- Tanzania Forestry Research Institute, TanzaniaMiombo woodlands cover large areas in Tanzania but very little reliable data on forest dynamics for the woodlands exist. The main objective of this study was to develop a model system describing such dynamics based on easily measurable tree variables... -
Morphological variation in the Sabota Lark Calendulauda sabota in southern Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Sean M Marr --- Department of Biodiversity, South Africa Mmatjie L Mashao --- Department of Biodiversity, South Africa G Derek Engelbrecht --- Department of Biodiversity, South AfricaSeparation of the eight southern African subspecies of Sabota Lark Calendulauda sabota into thick-billed and slender-billed groups has been proposed. This study used biometric data obtained from museum skins in South Africa to evaluate morphological variation in the subspecies as... -
The relative importance of climatic gradient versus human disturbance in determining population structure of Afzelia africana in the Republic of Benin
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Achille E Assogbadjo --- Laboratory of Applied Ecology, Faculty of Agronomic Sciences, Republic of Benin Sylvanus Mensah --- Laboratory of Biomathematics and Forest Estimations, Faculty of Agronomic Sciences, Republic of Benin Romain Glèlè Kakaï --- Laboratory of Biomathematics and Forest Estimations, Faculty of Agronomic Sciences, Republic of BeninThe study aimed to investigate the relative significance of effects of climatic variability and human disturbance on the population structure of the threatened species Afzelia africana Sm. ex Pers. in the Republic of Benin in West Africa. Forest inventory data... -
Effect of land use on water quality and phytoplankton community in the tropical Khami River in semi-arid southwest Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: T Dzinomwa --- Department of Environmental Science and Health, Faculty of Applied Science, Zimbabwe HGT Ndagurwa --- Department of Forest Resources and Wildlife Management, Faculty of Applied Science, ZimbabweThe water quality and phytoplankton community assemblage of the Khami River, a tropical river sub catchment in semi-arid southwest Zimbabwe impacted by agriculture and urban land use, were examined in March 2015. Conductivity, sulphates, total dissolved solids and salinity were... -
Investigating the environmental adaptability of promising subtropical and cold-tolerant eucalypt species in the warm temperate climate zone of KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal • Authors: RAW GardnerDuring 2001, a series of four site-species interaction trials was established by the ICFR (Institute for Commercial Forestry Research) in the warm temperate climate zone of KwaZulu-Natal, South Africa (mean annual temperature (MAT) range 16–19°C), to investigate the relative growth... -
DNA barcoding of South Africa’s ornamental freshwater fish – are the names reliable?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: KA van der Walt --- Department of Ichthyology and Fisheries Science, South Africa T Mäkinen --- South African Institute for Aquatic Biodiversity, South Africa ER Swartz --- South African Institute for Aquatic Biodiversity, South Africa OLF Weyl --- South African Institute for Aquatic Biodiversity, South AfricaTrade in freshwater ornamental fish in South Africa is currently regulated by a ‘blacklist’ to prevent potentially invasive taxa from establishing in the country. Because its effective implementation requires accurate identification, the aim of the present study was to test... -
Tono Reservoir fishery contribution to poverty reduction among fishers in northern Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DN Akongyuure --- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Ghana S Amisah --- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Ghana TK Agyemang --- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, Ghana RE Edziyie --- Department of Fisheries and Watershed Management, Faculty of Renewable Natural Resources, GhanaFishery characteristics and livelihood status of fishers at Tono Reservoir, Ghana, were investigated between January 2015 and June 2016. Data on fisher demography, fishing gears, fishing methods, perceptions of the state of fish stocks, management practices, income and consumption of... -
Boulder shores in South Africa – a distinct but poorly documented coastal habitat type
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: L Tucker --- Marine Research Institute and Department of Biological Sciences, South Africa CL Griffiths --- Marine Research Institute and Department of Biological Sciences, South Africa F Schroeter --- Marine Research Institute and Department of Biological Sciences, South Africa HD Vetter --- Marine Research Institute and Department of Biological Sciences, South AfricaThis study compares the composition, species richness and biomass of macrofaunal and algal assemblages on intertidal boulder shores as compared with those on adjacent rock-platforms, at six sites along the southwest coast of South Africa. Of 214 species identified, 175... -
Fish recruitment into a South African temporarily open/closed temperate estuary during three different hydrological mouth phases
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GP Tweddle --- Department of Zoology, South Africa PW Froneman --- Department of Zoology and Entomology, South AfricaQuantitative recruitment of ichthyofauna into a South African temporarily open/closed estuary (TOCE) was investigated during three distinct hydrological phases: closed overwash, open outflow and tidal mouth conditions. Maximum recruitment densities occurred during outflow conditions and declined when the system became... -
The application of camera trapping to assess Rallidae species richness within palustrine wetland habitat in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Robin B Colyn --- Terrestrial Bird Conservation Programme, South Africa Alastair M Campbell --- Ingula Nature Reserve, South Africa Hanneline A Smit-Robinson --- Terrestrial Bird Conservation Programme, South AfricaWetlands are vital habitats for a variety of organisms and ecosystem services, but the health of these valuable habitats is declining worldwide. The Rallidae species that rely on these habitats are typically elusive, cryptic and difficult to monitor accurately, especially... -
Bird species richness and densities in relation to sulphur dioxide gradients and environmental variables
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Luckson Muyemeki --- Unit for Environmental Sciences and Management (Geography and Environmental Management), South Africa Roelof Burger --- Unit for Environmental Sciences and Management (Geography and Environmental Management), South Africa Stuart J Piketh --- Unit for Environmental Sciences and Management (Geography and Environmental Management), South Africa Steven W Evans --- SARCHI Chair on Biodiversity Value and Change, School of Mathematical and Natural Sciences, South AfricaThe expansion of coal-fired power stations in South Africa has resulted in growing environmental concerns as they are the largest emitters of sulphur dioxide (SO2). Sulphur dioxide emissions from power plants pose a potential threat to avian populations. However, the... -
Avian guild assemblages in forest fragments around Budongo Forest Reserve, western Uganda
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Moreen Uwimbabazi --- Department of Forest Biology and Ecosystems Management, Uganda Amy E Eycott --- Institute of Biology, Norway Fred Babweteera --- Royal Zoological Society of Scotland, UK Eric Sande --- Department of Biological Sciences, Uganda Richard J Telford --- Institute of Biology, Norway Vigdis Vandvik --- Institute of Biology, NorwayRemnant forest fragments provide an opportunity for conservation in fragmented landscapes but some patches are more useful than others. Forest fragments around Budongo Forest Reserve, an Important Bird Area in western Uganda, were surveyed to explore the effects of different... -
Possible rehabilitation methods of Galenia africana-dominated old lands in the Cederberg Mountains, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Nelmarie Saayman --- Directorate Plant Sciences, South Africa Clement Cupido --- Agricultural Research Council–Animal Production Institute, c/o Department of Biodiversity and Conservation Biology, South Africa Hannes Botha --- Western Cape Department of Agriculture, South Africa Rudi Swart --- Western Cape Department of Agriculture, South AfricaSeveral methods to rehabilitate old cropping lands in the Cederberg Mountains were tested to determine what type of soil disturbance, if any, and which of five indigenous perennial plant species are the most successful and economically feasible. Old lands are... -
Reassessing the invasion of South African waters by the European shore-crab Carcinus maenas
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CA Mabin --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa JRU Wilson --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa JJ Le Roux --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa TB Robinson --- Centre for Invasion Biology, Department of Botany and Zoology, South AfricaThe European shore-crab Carcinus maenas has been present in South Africa since 1983. Despite this species’ international reputation as a biological invader, its distribution in this region has only been considered by three outdated ‘snapshot surveys.’ The present study is... -
Invasion status of Florida bass Micropterus floridanus (Lesueur, 1822) in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: OLF Weyl --- DST/NRF Research Chair in Inland Fisheries and Freshwater Ecology, South Africa MK Schirrmann --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa JS Hargrove --- Wildlife Ecology and Conservation Department, USA T Bodill --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa ER Swartz --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaLargemouth bass Micropterus salmoides are a popular North American angling species that was introduced into South Africa in 1928. To enhance the largemouth bass fisheries, Florida bass Micropterus floridanus were introduced into KwaZulu Natal, South Africa, in 1980. Knowledge on... -
Freshwater crayfish invasions in South Africa: past, present and potential future
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AL Nunes --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa TA Zengeya --- Centre for Invasion Biology, South Africa GJ Measey --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa OLF Weyl --- Centre for Invasion Biology, South AfricaFreshwater crayfish invasions have been studied around the world, but less so in Africa, a continent devoid of native freshwater crayfish. The present study reviews historical and current information on alien freshwater crayfish species introduced into South Africa and aims... -
Effect of large weirs on abundance and diversity of migratory Labeobarbus species in tributaries of Lake Tana, Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: G Shewit --- Fisheries, Wetlands and Wildlife Management Department, Ethiopia A Getahun --- Department of Zoological Sciences, Ethiopia W Anteneh --- Biology Department, Ethiopia B Gedif --- Institute of Disaster Risk Management and Food Security Studies, Bahir Dar University, Ethiopia B Gashu --- Fisheries, Wetlands and Wildlife Management Department, Ethiopia B Tefera --- Agricultural Economics Department, Ethiopia Z Berhanie --- Agricultural Economics Department, Ethiopia D Alemaw --- Faculty of Civil and Water Resource Engineering, EthiopiaLake Tana has a remarkable fish diversity, including 17 endemic Labeobarbus species, of which nine spawn in the inflowing rivers. Three of the migratory species are threatened, namely the endangered Labeobarbus macrophtalmus and the vulnerable L. acutirostris and L. platydorsus... -
Systematic reinstatement of Schilbe depressirostris (Peters, 1852), based on differences in DNA barcoding and morphology, from Schilbe intermedius Rüppell, 1832 (Siluriformes, Schilbeidae)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: HF van der Bank --- African Centre for DNA Barcoding, Kingsway Campus, South Africa BS Bezeng --- African Centre for DNA Barcoding, Kingsway Campus, South Africa PH Skelton --- South African Institute for Aquatic Biodiversity, South AfricaClimate change poses an unprecedented threat to biodiversity worldwide. Consequently, unrecognised taxa may not receive adequate conservation attention to survive. We used molecular and morphological data to address the challenge of species delimitation within the genus Schilbe. The presence or... -
Evidence of multiple divergent mitochondrial lineages within the southern African diplopod genus Bicoxidens Attems, 1928 (Spirostreptida)
Item type: Journal Article • Journal: African Zoology • Authors: Tawanda Tinago --- Department of Biology, School of Natural Sciences and Mathematics, Zimbabwe Tarombera Mwabvu --- School of Biology and Environmental Sciences, Faculty of Agriculture and Natural Sciences, South Africa Angus HH MacDonald --- School of Life Sciences, South AfricaTwo recent studies have suggested that divergent mitochondrial lineages may be present within spirostreptid genera such as Bicoxidens Attems, 1928. Bicoxidens, similar to many other endemic soil invertebrates, exhibits low dispersal capabilities and strict microclimate habitat preferences, attributes that often... -
Two cases of probable hybridisation between the pufferfishes Arothron meleagris (Anonymous 1798) and A. nigropunctatus (Bloch and Schneider 1801) on a fringing reef at Réunion Island
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P Bourjon --- Les Sentinelles du Récif, réseau d’observateurs volontaires de la Réserve Naturelle Marine de La Réunion [‘Sentinels of the Reef’, Volunteer Observers Network of the Réunion Marine Park] (GIP–RNMR), Réunion Island B Chanet --- Institut de Systématique, FranceTwo individuals displaying mixed features of the colour patterns distinctive of Arothron meleagris and A. nigropunctatus were observed on the fringing reef at Réunion Island, between September 2012 and August 2013. Because many hybrid fish have been first identified through... -
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... -
The impact of river flooding and high flow on the demersal fish assemblages of the freshwater-dominated Great Fish Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: P Nodo --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa NC James --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South Africa MDV Nakin --- Department of Biological and Environmental Sciences, South AfricaFreshwater inflow has a strong impact on the biological, chemical and physical characteristics of estuaries, which in turn affect the distribution and abundance of estuarine organisms. Increased climatic variability associated with climate change is predicated to modify precipitation patterns, which... -
Nest boxes for Cape Parrots Poicephalus robustus in the Hogsback area, Eastern Cape, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kirsten Wimberger --- Cape Parrot Project, South Africa Kate F Carstens --- Cape Parrot Project, South Africa Johann C Carstens --- Cape Parrot Project, South Africa R Stephen Boyes --- Cape Parrot Project, South AfricaBreeding propensity of tree-cavity nesting bird species are often limited by a shortage of natural nesting sites. Artificial nests can be used to provide alternative nest sites. Cape Parrots Poicephalus robustus are nationally endangered and nest in existing tree-cavities in... -
Derivation of scenario-specific water quality guidelines for acid mine drainage in South Africa, using a risk-based approach
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EC Vellemu --- Unilever Centre for Environmental Water Quality, South Africa PK Mensah --- Unilever Centre for Environmental Water Quality, South Africa N Griffin --- Unilever Centre for Environmental Water Quality, South Africa ON Odume --- Unilever Centre for Environmental Water Quality, South AfricaAcid mine drainage (AMD) continues to threaten water quality in many mining regions globally. Data paucity renders it challenging to inform appropriate water quality management strategies for a succinct scientific understanding of the effects of AMD on freshwater ecosystems. The... -
Allometric models to estimate foliage biomass of Tamarindus indica in Burkina Faso
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Loyapin Bondé --- Laboratory of Plant Biology and Ecology, Burkina Faso Moussa Ganamé --- Laboratory of Plant Biology and Ecology, Burkina Faso Oumarou Ouédraogo --- Laboratory of Plant Biology and Ecology, Burkina Faso Blandine MI Nacoulma --- Laboratory of Plant Biology and Ecology, Burkina Faso Adjima Thiombiano --- Laboratory of Plant Biology and Ecology, Burkina Faso Joseph I Boussim --- Laboratory of Plant Biology and Ecology, Burkina FasoTamarindus indica L. is a multi-purpose tropical species. In West Africa the local people use its leaves daily as a source of food, medicine and income. To prevent the over-exploitation of this species for its use for non-timber forest products,... -
Alternative eucalypts for commercial pulpwood production at moderately dry sites in the warm temperate zone of KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Robin AW Gardner --- Institute for Commercial Forestry Research, South Africa Keith M Little --- School of Natural Resource Management, Nelson Mandela Metropolitan University, South Africa Arnulf Kanzler --- Sappi Forest Research, South Africa Thimagren N Naidoo --- Sappi Forest Research, South AfricaDuring 2001, a series of four site–taxa interaction trials was established in the warm temperate (mean annual temperature range 16–19 °C) forestry climatic zone of KwaZulu-Natal (KZN), South Africa. The main objective was to investigate the commercial forestry potential of... -
Vegetation gradients around cattleposts in the eastern mountains of Lesotho
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Craig Morris --- Agricultural Research Council–Animal Production Institute, c/o School of Life Sciences, South AfricaThe grasslands of the mountains in eastern Lesotho support large numbers of sheep, angora goats and other livestock during the summer, during which they are corralled nightly by herders at cattleposts. Few studies, however, have quantified the impact of grazing... -
Contrasting invasion patterns in intertidal and subtidal mussel communities
Item type: Journal Article • Journal: African Zoology • Authors: Lisa Skein --- Department of Botany and Zoology, South Africa Mhairi Alexander --- School of Science and Sport, UK Tamara Robinson --- Department of Botany and Zoology, South AfricaTwo invasive mussel species are known from South Africa, Mytilus galloprovincialis and Semimytilus algosus. Most of the existing research on these invaders has focused on the intertidal zone, with little attention paid to subtidal habitats. This study addresses this knowledge... -
New species of Mongrel Frogs (Pyxicephalidae: Nothophryne) for northern Mozambique inselbergs
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Werner Conradie --- , South Africa Gabriela B. Bittencourt-Silva --- , , Switzerland Harith M. Farooq --- , , Mozambique Simon P. Loader --- , United Kingdom Michele Menegon --- , , Italy Krystal A. Tolley --- , , South AfricaNothophryne Poynton, 1963 is a monotypic genus of frog, with the nominal species N. broadleyi found only on Mount Mulanje, in southern Malawi. Recent surveys in northern Mozambique, however, have uncovered at least four new species associated with four inselbergs... -
Impacts of alien ‘ecosystem engineers’ overwhelm interannual and seasonal shifts in rocky-shore community composition on Marcus Island, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Sadchatheeswaran --- Department of Biological Sciences and Marine Research Institute, South Africa GM Branch --- Department of Biological Sciences and Marine Research Institute, South Africa CL Moloney --- Department of Biological Sciences and Marine Research Institute, South Africa TB Robinson --- Department of Botany and Zoology, South AfricaThe South African coastline has been invaded by numerous alien species. Rare pre-invasion (1980) and post-invasion datasets (2001 and 2012) exist for Marcus Island, a small land-tied island in Saldanha Bay, South Africa. These snapshot datasets of the island’s intertidal... -
Carbon stocks and productivity of mangrove forests in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Marco A Njana --- National Carbon Monitoring Centre, Tanzania Eliakimu Zahabu --- National Carbon Monitoring Centre, Tanzania Rogers E Malimbwi --- Department of Forest Mensuration and Management, TanzaniaMangroves offer a number of ecosystem goods and services, including carbon (C) storage. As a carbon pool, mangroves could be a source of CO2 emissions as a result of human activities such as deforestation and forest degradation. Conversely, mangroves may... -
Genetic variability of the Lessepsian migrant mussel Brachidontes pharaonis (Bivalvia: Mytilidae) in Tunisia
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Antit --- UR11ES12 Biologie de la Reproduction et du Développement animal, Faculté des Sciences de Tunis, Tunisia N Amor --- KSU Mammals Research Chair, Department of Zoology, Saudi Arabia J Urra --- Oceanographic Center of Málaga–Spanish Institute of Oceanography, Spain AN Alagaili --- KSU Mammals Research Chair, Department of Zoology, Saudi Arabia S Farjallah --- Unité de Recherche de Biologie Intégrative et Ecologie Évolutive et Fonctionnelle des Milieux aquatiques, Faculté des Sciences Tunis, TunisiaThe present study used two mitochondrial markers (16S rRNA and COI) to assess the genetic diversity of a newly founded Lessepsian migrant mussel, Brachidontes pharaonis, in Tunisian waters. The species appears to be restricted to only one population in Rades... -
Predictive modelling of the potential future distribution of Vachellia nilotica within the KwaZulu-Natal province of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Janet Taylor --- Natural Resources Section, KwaZulu-Natal Department of Agriculture and Rural Development, South Africa Nico Smit --- Department of Animal, Wildlife and Grassland Sciences, South Africa Debbie Jewitt --- Biodiversity Research and Assessment, Ezemvelo KZN Wildlife, South AfricaMany regions of South Africa are prone to woody plant thickening. This can have an ecologically detrimental effect on the open savannas and grasslands. KwaZulu-Natal, a province on the east coast of South Africa, is currently experiencing an increase in... -
Urban bird trends in a rapidly growing tropical city
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Dan Chamberlain --- Department of Life Sciences and Systems Biology, Italy Micheal Kibuule --- Department of Zoology, Uganda Roger Q Skeen --- Nature Uganda, Uganda Derek Pomeroy --- Department of Environmental Management, UgandaLong-term studies of urban birds are relatively scarce, especially in Africa. We analysed trends in species richness and bird species occurrence over a 32-year period in Kampala, Uganda, in order to assess changes in the bird community in a period... -
Preliminary evaluation of non-native rainbow trout (Oncorhynchus mykiss) impact on the Cederberg ghost frog (Heleophryne depressa) in South Africa’s Cape Fold Ecoregion
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: S Avidon --- Department of Conservation Ecology and Entomology, South Africa JM Shelton --- Department of Conservation Ecology and Entomology, South Africa SM Marr --- DST/NRF Research Chair in Inland Fisheries and Freshwater Ecology, South Africa TA Bellingan --- Centre for Invasion Biology, South Africa KJ Esler --- Department of Conservation Ecology and Entomology, South Africa OLF Weyl --- DST/NRF Research Chair in Inland Fisheries and Freshwater Ecology, South AfricaWe evaluated the impact of non-native rainbow trout Oncorhynchus mykiss on a population of endemic Cedarberg ghost frog Heleophryne depressa in the upper Krom River (Olifants-Doring River Catchment, Cape Fold Ecoregion). We compared H. depressa abundance (using kick-sampling and underwater... -
Evaluating the effects of catch-and-release angling on Cape stumpnose Rhabdosargus holubi in a South African estuary
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NK Arkert --- Department of Ichthyology and Fisheries Science, South Africa A-R Childs --- Department of Ichthyology and Fisheries Science, South Africa MC Parkinson --- Department of Ichthyology and Fisheries Science, South Africa AC Winkler --- Department of Ichthyology and Fisheries Science, South Africa E Butler --- Department of Ichthyology and Fisheries Science, South Africa S Mannheim --- Department of Ichthyology and Fisheries Science, South Africa WM Potts --- Department of Ichthyology and Fisheries Science, South AfricaFisheries managers are increasingly promoting catch-and-release (C&R) to manage recreationally angled fish stocks. Despite this, there is a scarcity of information on the effects of C&R on estuarine-dependent species. Cape stumpnose Rhabdosargus holubi dominates the recreational fisheries catch and provides... -
Assessment of the likely sensitivity to climate change for the key marine species in the southern Benguela system
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Ortega-Cisneros --- Department of Ichthyology and Fisheries Science, South Africa S Yokwana --- Department of Ichthyology and Fisheries Science, South Africa W Sauer --- Department of Ichthyology and Fisheries Science, South Africa K Cochrane --- Department of Ichthyology and Fisheries Science, South Africa A Cockcroft --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa NC James --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa WM Potts --- Department of Ichthyology and Fisheries Science, South Africa L Singh --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South Africa M Smale --- Department of Zoology and Coastal and Marine Research, South Africa A Wood --- Gleneagles Environmental Consulting, South Africa G Pecl --- Institute for Marine and Antarctic Studies, AustraliaClimate change is altering many environmental parameters of coastal waters and open oceans, leading to substantial present-day and projected changes in the distribution, abundance and phenology of marine species. Attempts to assess how each species might respond to climate change... -
Whole-tree sap flow responses to soil water and weather variables for Pinus radiata and three indigenous species in a southern afrotemperate forest region
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tatenda Mapeto --- School of Natural Resources Management, Nelson Mandela University, George Campus, South Africa Josua Louw --- School of Natural Resources Management, Nelson Mandela University, George Campus, South Africa Mark Gush --- Council for Scientific and Industrial Research, South Africa Jeanette Pauw --- School of Natural Resources Management, Nelson Mandela University, George Campus, South AfricaIn a water-scarce country such as South Africa, timber and fibre production often stands in conflict with catchment water yields. The optimal provision of both is sought. Forest hydrological experiments improve our understanding of the soil–plant–atmosphere continuum and facilitate the... -
A decision support tool approach based on the Electre TRI-B method for the valorisation of tropical timbers from the Congo Basin: an application for glulam products
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: René Oum Lissouck --- Department of Civil Engineering and Wood Construction, Cameroon Régis Pommier --- University of Bordeaux, France Franck Taillandier --- University of Bordeaux, France Jean K Mvogo --- Laboratory of Civil Engineering and Mechanics, National Advanced School of Engineering, Cameroon Denys Breysse --- University of Bordeaux, France Louis M Ayina Ohandja --- Laboratory of Civil Engineering and Mechanics, National Advanced School of Engineering, CameroonAn alternative approach to the formal management strategy of tropical timber species from the Congo Basin was investigated. It focused on the development of glulam, with an aim to specify a decision support model for the valorisation of tropical timber... -
Molecular phylogenetics reveals a complex history underlying cryptic diversity in the Bush Squeaker Frog (Arthroleptis wahlbergii) in southern Africa
Item type: Journal Article • Journal: African Zoology • Authors: KA Tolley --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa W Conradie --- Port Elizabeth Museum, South Africa J Harvey --- Devonshire Avenue, South Africa J Measey --- Centre for Invasion Biology, Department of Botany and Zoology, South Africa DC Blackburn --- Florida Museum of Natural History, United StatesThroughout the Miocene, the African landscape underwent broad climatic shifts that profoundly influenced the distribution of fauna and flora. Since the late Miocene, these shifts have created a landscape in southern Africa that is strongly characterised by savanna and arid... -
Changes in bat community composition and activity patterns across a conservation-agriculture boundary
Item type: Journal Article • Journal: African Zoology • Authors: Fezile Mtsetfwa --- Department of Wildlife Ecology and Conservation, School of Natural Resource and Environment, United States Robert A McCleery --- Department of Wildlife Ecology and Conservation, School of Natural Resource and Environment, United States Ara Monadjem --- Department of Wildlife Ecology and Conservation, School of Natural Resource and Environment, United StatesAgricultural landscapes are typically associated with a decreased biodiversity, particularly when they extend across large spatial scales. Despite the fact that some African bat species seem to provide essential ecosystem services across landscapes, we only have a limited understanding of... -
Long-term impacts of livestock grazing and browsing in the Succulent Karoo: a 20-year study of vegetation change under different grazing regimes in Namaqualand
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Elelwani Nenzhelele --- Department of Biological Sciences, South Africa Simon W Todd --- South African Environmental Observation Network (SAEON): Arid Lands Node, South Africa M Timm Hoffman --- Plant Conservation Unit, Department of Biological Sciences, South AfricaThis study used a fence-line contrast approach to investigate the long-term impact of high grazing pressure on the vegetation at a site in Namaqualand, South Africa. Forty pairs of permanently marked plots were surveyed in 1996, 2006 and 2016. The... -
The composition of the soil seedbank and its role in ecosystem dynamics and rehabilitation potential in the arid Tankwa Karoo Region, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Manam WB Saaed --- Higher Institute of Agricultural Techniques, Libya Shayne M Jacobs --- Department of Conservation Ecology and Entomology, South Africa Mmoto L Masubelele --- Cape Research Centre, South Africa Igshaan Samuels --- Agricultural Research Council–Animal Production, c/o Department of Biodiversity and Conservation Biology, South Africa Lesego Khomo --- Department of Environmental Sciences, South Africa Yacoub M El-Barasi --- Botany Department, Faculty of Science, LibyaVery few soil seedbank studies have been conducted in South Africa, especially in arid rangelands. Insight into the soil seedbank could therefore improve assessment of rangeland dynamics and enhance rehabilitation efforts. This study aimed to characterise the soil seedbanks in... -
The introduction, spread and ecology of redclaw crayfish Cherax quadricarinatus in the Zambezi catchment
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RJ Douthwaite --- Kafue River Trust, Holly Oast, United Kingdom EW Jones --- 3 Cwm Arthur, Myddleton Park, United Kingdom AB Tyser --- Kafue River Trust, Holly Oast, United Kingdom SM Vrdoljak --- Wildtracks Lodge, ZambiaTwo of the four crayfish species brought to Zambia for aquaculture since 1979 are now naturalised. Procamburus clarkii occurs in the Maramba River at Livingstone, close to a former fish farm, whereas Cherax quadricarinatus, deliberately introduced to a number of... -
Long-term physico-chemical and faunal changes in a small, rural South African estuary
Item type: Journal Article • Journal: African Zoology • Authors: M Kajee --- Department of Biological Sciences and Centre for Invasion Biology, South Africa CL Griffiths --- Department of Biological Sciences and Centre for Invasion Biology, South Africa SJ Lamberth --- Fisheries Management, Department of Agriculture, South AfricaThe Palmiet Estuary is a small, rural estuary in the Western Cape that only closes briefly during dry summers. The system was previously surveyed during 1979 to 1980 and we repeated the survey in April 2015 (mouth closed) and September... -
Fifty-five-year longevity for the largest member of the family Sparidae: the endemic red steenbras Petrus rupestris from South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: AH Andrews --- , United States MJ Smale --- , South Africa PD Cowley --- , South Africa N Chang --- , South AfricaA previous study that explored the age and growth of red steenbras Petrus rupestris (Valenciennes, 1830), a large sparid (family Sparidae, seabreams or porgies) endemic to South Africa and reported to approach 2 m in length, provided estimates as a... -
Population fluctuations of Cerithidea decollata (Gastropoda: Potamididae) in mangrove habitats of the St Lucia Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JL Raw --- , South Africa GM Rishworth --- , South Africa R Perissinotto --- , South Africa JB Adams --- , South AfricaMangrove macrobenthos species are used as ecological indicators as they are sensitive to changes in sediment properties. In this study, the population density of the common mangrove whelk Cerithidea decollata was assessed during different environmental conditions in the St Lucia... -
Environmental influence on phytoplankton communities in the northern Benguela ecosystem
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: R Barlow --- , South Africa T Lamont --- , South Africa D Louw --- , Namibia M-J Gibberd --- , South Africa R Airs --- , United Kingdom A van der Plas --- , NamibiaAn investigation of surface phytoplankton communities was undertaken on the shelf of the northern Benguela upwelling ecosystem during austral autumn (May) and spring (September), along latitudinal transects at 20° S and 23° S, from 2 to 70 nautical miles offshore,... -
Pathogens and Pests Threatening Plantation Forestry in Zimbabwe
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: L. Jimu --- Department of Natural Resources, Zimbabwe L. Mujuru --- Department of Natural Resources, ZimbabweThe Zimbabwean forestry industry, which contributes significantly to the economy, was introduced in the 1940s and is dominated by Pinus spp., Eucalyptus spp. and Acacia mearnsii De Wild. This paper assembles and consolidates literature on diseases and pests of forest... -
Sensitivity of Meloidogyne incognita second-stage juvenile hatch, motility and viability to pure cucurbitacins and cucurbitacin-containing phytonematicides
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Zakheleni P Dube --- Green Biotechnologies Research Centre, South Africa Phatu W Mashela --- Green Biotechnologies Research Centre, South Africa Dirk de Waele --- Green Biotechnologies Research Centre, South AfricaPrevious claims suggested that pure active ingredients from botanicals were less effective in pest management than their fermented crude-extracts. The objective of this study was to compare the toxicity of pure (98%) cucurbitacin A and B on nematode bioactivities with... -
Socio-economic determinants of smallholder plantation sizes in Ghana and options to encourage reforestation
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Richard Osei --- Institute of Botany and Landscape Ecology, Germany Stefan Zerbe --- Faculty of Science and Technology, Italy Volker Beckmann --- Institute of Botany and Landscape Ecology, Germany Aristotle Boaitey --- Geoinformation for Natural Resources and Environmental Management (GeoNAREM), GhanaReforestation, particularly in the tropics, is of crucial importance for the environment as well as society. However, small planting areas and low participation of smallholder farmers in tree planting programmes often obstruct realisation of set planting area targets. In this... -
Movement patterns of an endemic South African sparid, the black musselcracker Cymatoceps nasutus, determined using mark-recapture methods
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TS Murray --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa PD Cowley --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa BQ Mann --- Oceanographic Research Institute (ORI), South Africa JQ Maggs --- Oceanographic Research Institute (ORI), South Africa G Gouws --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaThis study made use of data from three long-term fish tagging projects along the South African coastline to investigate the movement behaviour of the endemic black musselcracker Cymatoceps nasutus (Sparidae). From 1984 to 2016, a total of 3 430 C... -
Crayfish, catfish and snails: the perils of uncontrolled biological control
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: BE Marshall --- Great North Road, New ZealandA recent proposal that the Australian redclaw crayfish Cherax quadricarinatus and hybrid catfish could potentially control the snail hosts of schistosomiasis has been criticised on the grounds that crayfish pose a severe threat to aquatic ecosystems into which it might... -
Growth and biomass partitioning of nine provenances of Quillaja saponaria seedlings to water stress
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Carlos Magni --- Departamento de Silvicultura, Facultad de Ciencias Forestales y de la Conservación de la Naturaleza, Chile Sergio Espinoza --- Centro de Desarrollo para el Secano Interior, Facultad de Ciencias Agrarias y Forestales, Chile Paola Poch --- Departamento de Silvicultura, Facultad de Ciencias Forestales y de la Conservación de la Naturaleza, Chile Betsabé Abarca --- Departamento de Silvicultura, Facultad de Ciencias Forestales y de la Conservación de la Naturaleza, Chile Iván Grez --- Departamento de Silvicultura, Facultad de Ciencias Forestales y de la Conservación de la Naturaleza, Chile Eduardo Martínez --- Departamento de Silvicultura, Facultad de Ciencias Forestales y de la Conservación de la Naturaleza, Chile Marco Yáñez --- Núcleo Científico Multidisciplinario, Chile Rómulo Santelices --- Centro de Desarrollo para el Secano Interior, Facultad de Ciencias Agrarias y Forestales, Chile Antonio Cabrera --- Centro de Desarrollo para el Secano Interior, Facultad de Ciencias Agrarias y Forestales, ChileInformation on the morphological and physiological responses of seedlings to stressors, such as water stress, is required for successful early establishment of seedlings. We examined provenance variation in morphological and physiological traits of Quillaja saponaria Molina seeds from nine provenances... -
Land-use impacts on the composition and diversity of the Baikiaea– Guibourtia–Pterocarpus woodlands of north-western Zimbabwe
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Angella Chichinye --- Department of Forest Resources and Wildlife Management, Zimbabwe Coert J Geldenhuys --- Department of Plant and Soil Sciences, South Africa Paxie W Chirwa --- Department of Plant and Soil Sciences, South AfricaVariation in floristic composition of recovering Baikiaea–Guibourtia–Pterocarpus woodlands was studied in different development stages (from early regrowth to mature woodland) under different land-use systems (protected areas, timber harvesting, pole and firewood collection, and abandoned crop fields), in the Gwayi and... -
The echiuran fauna of southern Africa (Class: Echiura, Phylum: Annelida)
Item type: Journal Article • Journal: African Zoology • Authors: Ramlall Biseswar --- School of Life Sciences, South AfricaThis paper is a comprehensive report on the genera and species of Echiura previously recorded from southern Africa south of 23°30′ S. The echiuran fauna of this region currently comprises five genera and 22 species belonging to the single family... -
Seasonal variation of livestock feed resources in semi-arid and humid environments of Rwanda
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Mupenzi Mutimura --- University of KwaZulu-Natal, South Africa Cyprian Ebong --- Rwanda Agriculture Board (RAB), Rwanda Idupulapati M Rao --- International Centre for Tropical Agriculture (CIAT), Colombia Ignatius V Nsahlai --- University of KwaZulu-Natal, South AfricaIn most of sub-Saharan African countries, including Rwanda, the predominant agricultural production is from a mixed-crop-livestock farming system, because of small size land holding. The objective of this study was to assess the seasonal availability of livestock feed resources in... -
Genetic diversity of endangered sandalwood (Osyris lanceolata) populations in Kenya using ISSR molecular markers
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: KP Andiego --- Department of Forestry and Wood Science, Kenya OG Dangasuk --- Department of Biological Sciences, Kenya DW Odee --- Biotechnology Laboratory, Kenya FS Omondi --- Biotechnology Laboratory, Kenya DF Otieno --- Department of Biological Sciences, Kenya BK Balozi --- Department of Forestry and Wood Science, KenyaOsyris lanceolata is an evergreen, drought tolerant tropical African tree species belonging to the family Santalaceae. It is endangered, owing to overexploitation for its essential oil used in cosmetics and pharmaceutical industries. The study aimed at determining: (1) the genetic... -
Impact of land use on woody aboveground biomass in Miombo woodlands of western Zambia – comparison of three allometric equations
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Priscilla Sichone --- Institute for Plant Science and Microbiology, University of Hamburg, Germany Ute Schmiedel --- Institute for Plant Science and Microbiology, University of Hamburg, Germany Jens Oldeland --- Institute for Plant Science and Microbiology, University of Hamburg, Germany Norbert Jürgens --- Institute for Plant Science and Microbiology, University of Hamburg, GermanyGlobally, the intensification of land use for agriculture, timber and fuel is considered the leading threat to the diversity and biomass of forests and woodlands. To suggest management options, it is important to understand the patterns and drivers of diversity,... -
Relationship between carbon stocks and tree species diversity in a humid Guinean savanna landscape in northern Sierra Leone
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Edward Amara --- Earth Change Observation Laboratory, Department of Geosciences and Geography, Finland Janne Heiskanen --- Earth Change Observation Laboratory, Department of Geosciences and Geography, Finland Ermias Aynekulu --- World Agroforestry Centre (ICRAF), Kenya Petri KE Pellikka --- Earth Change Observation Laboratory, Department of Geosciences and Geography, FinlandGlobal sustainable development goals include reducing greenhouse gas emissions from land-use change and maintaining biodiversity. Many studies have examined carbon stocks and tree species diversity, but few have studied the humid Guinean savanna ecosystem. This study focuses on a humid... -
Horizon scanning for alien predatory crabs: insights from South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Swart --- Department of Botany and Zoology, South Africa TB Robinson --- Department of Botany and Zoology, South AfricaDue to the presence of few dominant predators on South African rocky shores, this coastline could be vulnerable to invasion by predatory crabs. This study applied horizon scanning to create an ordered watch list of alien crab species that could... -
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... -
Smooth fan lobster Ibacus novemdentatus in the southwestern Indian Ocean: an overlooked fisheries resource?
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: JC Groeneveld --- Oceanographic Research Institute (ORI), South Africa LD Zacarias --- Instituto Nacional de Investigação Pesqueira (IIP), Mozambique SP Singh --- Oceanographic Research Institute (ORI), South AfricaBottom-trawl data collected by the RV Dr Fridtjof Nansen off Mozambique (in 1990, 2007 and 2018) and off eastern South Africa (in 2018) were analysed to investigate the distribution, abundance and size composition of the smooth fan lobster Ibacus novemdentatus... -
Agulhas long-billed lark (Certhilauda brevirostris) densities, population estimates and habitat association in a transformed landscape
Item type: Journal Article • Journal: African Zoology • Authors: Celeste de Kock --- Department of Continuing Education, United Kingdom Alan TK Lee --- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, South AfricaThe effects of agricultural landscape transformation and subsequent habitat associations have been little studied for the Agulhas long-billed lark (Certhilauda brevirostris), a regionally threatened species in the Overberg, Western Cape, South Africa. Point count surveys were conducted throughout the Overberg... -
Elevational variation of dung beetle (Coleoptera: Scarabaeidae: Scarabaeinae) communities on Bioko Island, Equatorial Guinea
Item type: Journal Article • Journal: African Zoology • Authors: Christie A Sukhdeo --- Department of Biological Sciences, United States T Keith Philips --- Department of Biology, United States Geraud C Tasse --- Department of Zoology and Animal Physiology, Cameroon Eric B Fokam --- Department of Biology, United States Katy Morgan --- Department of Biological Sciences, United StatesDung beetles are important for the healthy functioning of tropical forest ecosystems, performing essential roles, including nutrient recycling and secondary seed dispersal. Sensitive to changes in both habitat quality and vertebrate diversity, dung beetles are ideal taxa for monitoring ecosystem... -
A review of the use of birds’ nests by Egyptian geese, including a breeding attempt in a hooded vulture nest
Item type: Journal Article • Journal: African Zoology • Authors: Lindy J Thompson --- Centre for Functional Biodiversity, School of Life Sciences, South Africa Carrie J Hickman --- School of Environment, Earth and Ecosystem Sciences, United Kingdom John P Davies --- Birds of Prey Programme, Endangered Wildlife Trust, South Africa Fiona Fern --- Independent researcher, United Kingdom Colleen T Downs --- Centre for Functional Biodiversity, School of Life Sciences, South AfricaEgyptian geese Alopochen aegyptiaca are widely reported to be territorial and aggressive. They are known to attack and sometimes kill other birds and they may attempt to usurp their nests. Here information is collated on the bird species whose nests... -
Changes in decomposition rate and litterfall in riparian zones with different basal area of exotic Eucalyptus in south-eastern Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Glaucia Regina Santos --- Department of Forest Science, Brazil Marina Shinkai Gentil Otto --- Department of Forest Science, Brazil José Raimundo de Souza Passos --- Department of Biostatistics, Brazil Felipe Ferreira Onofre --- Department of Forest Science, Brazil Valdemir Antônio Rodrigues --- Department of Forest Science, Brazil Felipe Rossetti de Paula --- Department of Forest Science, Brazil Silvio Frosini de Barros Ferraz --- Department of Forest Science, BrazilExotic species in riparian environments can influence the quantity and quality of litterfall in the ecological system. The objective of this study was to evaluate the influence of Eucalyptus leaves on litterfall and terrestrial and aquatic leaf decomposition in a... -
Structure and diversity of the Araucaria forest in southern Brazil: biotic homogenisation hinders the recognition of floristic assemblages related to altitude
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Lucia Sevegnani --- Departamento de Ciências Naturais, Brazil André L de Gasper --- Departamento de Ciências Naturais, Brazil Arthur V Rodrigues --- Programa de Pós-Graduação em Engenharia Florestal, Brazil Débora V Lingner --- Departamento de Engenharia Florestal, Brazil Leila Meyer --- Programa de Pós-graduação em Ecologia e Evolução, Brazil Alexandre Uhlmann --- Embrapa Florestas, Brazil Laio Z Oliveira --- Departamento de Engenharia Florestal, Brazil Alexander C Vibrans --- Programa de Pós-Graduação em Engenharia Florestal, BrazilForest structure and species abundance may respond to environmental features triggered by geomorphology, altitude gradients and human impacts. In this study we investigated if data from a large-area inventory would support the segregation of floristic assemblages related to altitude-oriented forest... -
Height and volume functions for Pinus lawsonii, Pinus leiophylla, Pinus oocarpa and Pinus pringlei plantations in Guarei, São Paulo, Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Rafaella Carvalho Mayrinck --- School of Environment and Sustainability, Canada Vinicius Gontijo Rodrigues Roque --- Grupo Resinas Brasil, Complexo Florestal Sao Pedro, Brazil Antonio Carlos Ferraz Filho --- Departamento de Engenharia, Brazil Eduardo Michaloski Filho --- Grupo Resinas Brasil, Complexo Florestal Sao Pedro, Brazil Fredo Arias-King --- T & R Chemicals, USA Andressa Ribeiro --- Departamento de Engenharia, BrazilInventories are time- and money-consuming. Hence, accurate equations to estimate difficult-to-measure variables are desirable, especially for species that are not commercially established, such as Pinus lawsonii, P. leiophylla, P. pringlei and P. oocarpa. This study aimed to fit height and... -
Animal rights/Plant rights
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Jan A. Schulp --- Masters & Research Unit at NHL Stenden University of Applied Sciences, The NetherlandsThis article sketches the rise of the concept of animal rights, especially in the late 20th century, mainly due to the work of Peter Singer. Considering the increase in evidence of plant intelligence, the question is discussed of whether plants... -
A tale of records from Hakskeen Pan, the first record of Pumilibranchipus deserti Hamer and Brendonck, 1995 (Anostraca, Branchiopoda) from South Africa and the pursuit of a new world land speed record
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: E Meyer-Milne --- South African Environmental Observation Network, South Africa MC Mlambo --- Department of Freshwater Invertebrates, Albany Museum, South AfricaUntil now, Pumilibranchipus deserti was known from only one locality in Namibia. This paper reports the first record of this species from South Africa in Hakskeen Pan, Northern Cape, which represents a new, easterly range extension of the known distribution... -
Life history, distribution and seasonal movements of a threatened South African endemic seabream, Chrysoblephus gibbiceps
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CG Attwood --- Department of Biological Sciences and the Marine Research Institute, South Africa ME Dawson --- Department of Biological Sciences and the Marine Research Institute, South Africa SE Kerwath --- Department of Biological Sciences and the Marine Research Institute, South Africa C Wilke --- Branch: Fisheries Management, Department of Agriculture, Forestry and Fisheries (DAFF), South AfricaThe red stumpnose Chrysoblephus gibbiceps (Sparidae) is a South African endemic seabream that has been severely depleted by fishing. A total of 678 C. gibbiceps were sampled by line and trawl fishing for a study of their morphology, age, growth,... -
The influence of pruning height on symbiotic nitrogen fixation in a tree-based fodder production system
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Thabo I Makhubedu --- School of Agricultural, Earth and Environmental Sciences, South Africa Brigid A Letty --- School of Agricultural, Earth and Environmental Sciences, South Africa Paramu L Mafongoya --- School of Agricultural, Earth and Environmental Sciences, South Africa Peter F Scogings --- School of Life Sciences, South AfricaWoody species, especially dinitrogen-fixing species, can provide multiple products including food, fuelwood and fodder. In cut-and-carry silvopastoral systems, woody trees are often severely pruned for harvesting nitrogen (N)-rich fodder. However, very few studies have assessed the influence of this management... -
Effect of short-term maize–cover crop rotations on weed emergence, biomass and species composition under conservation agriculture
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Joyful T Rugare --- Department of Agronomy, South Africa Petrus J Pieterse --- Department of Agronomy, South Africa Stanford Mabasa --- Department of Crop Science, ZimbabweRecent advances in crop production have identified crop rotation with cover crops as a key component of sustainable crop production. However, the implementation of conservation agriculture (CA) systems involving crop rotations in Zimbabwe is still minimal partly due to the... -
Vulnerability of birds to contaminated water sources in the Karoo region of South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- FitzPatrick Institute of African Ornithology, South Africa Carolynne Geary --- Purposefully Lost Conservation Centre, South Africa Dale R Wright --- BirdLife South Africa, South Africa W Richard J Dean --- FitzPatrick Institute of African Ornithology, South AfricaThe Karoo is a unique region in South Africa in terms of its ecological processes and endemic species. Large areas are needed to maintain viable populations of nomadic birds that follow erratic rainfall events and subsequent food and nesting resources,... -
Geographical and temporal variation in the diet of Bank Cormorants Phalacrocorax neglectus in South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: BM Dyer --- Department of Environment, South Africa J Cooper --- Department of Botany and Zoology, South Africa RJM Crawford --- Department of Environment, South Africa RB Sherley --- Environment and Sustainability Institute, University of Exeter, United Kingdom S Somhlaba --- Department of Environment, South Africa A Cockcroft --- Department of Environment, South Africa L Upfold --- Department of Environment, South Africa AB Makhado --- Department of Environment, South AfricaThe Bank Cormorant Phalacrocorax neglectus is endemic to the Benguela upwelling ecosystem off southwest Africa and is classified as Endangered owing to a recent large reduction in its number. It is thought that food scarcity, including a decreased abundance of... -
Knysna Estuary health: ecological status, threats and options for the future
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: L Claassens --- Department of Zoology and Entomology, South Africa RSK Barnes --- Department of Zoology and Entomology, South Africa J Wasserman --- Department of Botany, DST/NRF Research Chair in Shallow Water Ecosystems, South Africa SJ Lamberth --- Fisheries Research and Development, Department of Environment, Forestry and Fisheries, South Africa NAF Miranda --- Department of Botany and Zoology, South Africa L van Niekerk --- Council for Scientific and Industrial Research, South Africa JB Adams --- Department of Botany, DST/NRF Research Chair in Shallow Water Ecosystems, South AfricaThe Knysna Estuary is South Africa's most important estuary in terms of conservation, containing an estimated 42% of all estuarine biodiversity. Despite formal protection the estuary is open access and vulnerable to resource exploitation, development, pollution and freshwater inflow alterations... -
Epibiotic assemblages on the pen shell Pinna rudis (Bivalvia, Pinnidae) at Matiota Beach, São Vicente Island, Cabo Verde
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: EP Lopes --- Faculty of Engineering and Maritime Sciences, Cabo Verde N Monteiro --- Faculty of Engineering and Maritime Sciences, Cabo Verde AM Santos --- Faculty of Engineering and Maritime Sciences, Cabo VerdeThe rough pen shell Pinna rudis Linnaeus, 1758 (family Pinnidae), a mollusc with an Atlantic–Mediterranean distribution, is able to live in coarse sandy substrates. Considering its shell structure and ecological characteristics, P. rudis can enhance biodiversity by providing a substrate... -
Use of openly available occurrence data to generate biodiversity maps within the South African EEZ
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: D Yemane --- Department of Environment, Forestry and Fisheries (DEFF), South Africa SP Kirkman --- Department of Environment, Forestry and Fisheries (DEFF), South Africa T Samaai --- Department of Environment, Forestry and Fisheries (DEFF), South AfricaBiodiversity maps are an important component of ecosystem-based management and conservation. In the past, biodiversity maps were largely generated using patchy occurrence data from a range of data sources. Currently, substantial species occurrence data are readily available for large parts... -
Mapping key browse resources in a heterogeneous agricultural landscape
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Clarice P Mudzengi --- , Zimbabwe Amon Murwira --- , Zimbabwe Fadzai M Zengeya --- , Zimbabwe Tinyiko Halimani --- , Zimbabwe Herve Fritz --- , France Chrispen Murungweni --- , ZimbabweWe investigated application of MaxEnt, a one-class classifier, in mapping the spatial distribution of Colophospermum mopane, Dichrostachys cinerea and Salvadora persica using drainage, elevation, slope, soil and Normalised Difference Vegetation Index as environmental variables. Model performance was evaluated based on... -
Relative growth of invasive and indigenous tilapiine cichlid fish in Tanzania
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SJ Bradbeer --- , United Kingdom BP Ngatunga --- , Tanzania GF Turner --- , United Kingdom MJ Genner --- , United KingdomNon-native species have been widely distributed across Africa for the enhancement of capture fisheries, but it can be unclear what benefits in terms of fisheries production the non-native species bring, compared with native species. Here we compared the relative growth... -
Colonisation of South African kelp-bed canopies by the alien mussel Mytilus galloprovincialis: extent and implications of a novel bioinvasion
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: C Lindberg --- , South Africa CL Griffiths --- , South Africa RJ Anderson --- , South AfricaThe Mediterranean mussel Mytilus galloprovincialis is the most significant invasive alien marine species in South Africa and, although not normally found subtidally, has recently been observed colonising heads and stipes of the kelp species Ecklonia maxima in False Bay. We... -
All washed up: spatial and temporal variation in the wash-up and fate of chondrichthyan egg cases along a section of the Garden Route, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Schmöle --- , The Netherlands M Brown --- , South Africa M Witteveen --- , South AfricaWashed-up chondrichthyan egg cases were collected along three different sandy beaches around Plettenberg Bay, South Africa, between April 2016 and March 2017. GPS location was recorded upon collection, and, after being soaked in fresh water for 12 hours, egg cases... -
Zoogeography of marine Bryozoa around South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MK Boonzaaier-Davids --- , South Africa WK Florence --- , South Africa MJ Gibbons --- , South AfricaThe zoogeography of marine Bryozoa around South Africa was investigated using published distribution records, museum catalogues, and an examination of previously unworked bryozoan material in (mostly) museum collections. Although a total of 276 valid species are recognised, it was not... -
Beta diversity of pelagic assemblages at fish aggregating devices in the open ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Forget --- , France L Dagorn --- , France B Mérigot --- , France JC Gaertner --- , French Polynesia J Robinson --- , Seychelles PD Cowley --- , South Africa MS Adam --- , Maldives Y Rilwan --- , Maldives M Koonjul --- , Mauritius V Mangar --- , Mauritius M Taquet --- , French Polynesia F Ménard --- , FranceOwing to difficulties in accessing the vast open ocean, the beta (β) diversity of pelagic fish assemblages remains poorly studied. We investigated the relationship between assemblage similarity and geographical distance between anchored fish aggregating devices (FADs), sampled by standardised underwater... -
Kissing cousins: a review of the African genus Limnophis Günther, 1865 (Colubridae: Natricinae), with the description of a new species from north-eastern Angola
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Werner Conradie --- Port Elizabeth Museum (Bayworld), South Africa V Deepak --- Department of Life Sciences, The Natural History Museum, United Kingdom Chad Keates --- National Geographic Okavango Wilderness Project, South Africa David J Gower --- Department of Life Sciences, The Natural History Museum, United KingdomThe African natricine genus Limnophis is represented by two species: Limnophis bicolor Günther, 1865 and Limnophis bangweolicus (Mertens, 1936). They are stout-bodied, semi-aquatic snakes that mostly feed on fish and amphibians, and occur from Botswana and Namibia in the south... -
William Roy Branch: Bibliography, taxonomic discoveries and patronyms
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Michael F Bates --- Department of Herpetology, National Museum, South Africa Aaron M Bauer --- Department of Biology and Center for Biodiversity and Ecosystem Stewardship, Villanova University, USAWilliam Roy Branch (1946–2018) was the most prolific Africa-based herpetologist of his era. His 659 herpetological contributions, spanning 47 years, include field and photographic guides, taxonomic revisions, phylogenies, ecological studies, annotated checklists, conservation assessments, type catalogues, notes on natural history,... -
Numbers of invasive House Sparrows Passer domesticus in a rural landscape of Limpopo province, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Cavin T Shivambu --- , South Africa Ndivhuwo Shivambu --- , South Africa Takalani Nelufule --- , South Africa Moleseng C Moshobane --- , South Africa Manqoba M Zungu --- , South Africa Colleen T Downs --- , South AfricaThe House Sparrow Passer domesticus is recognised as one of the commonest avian invasive species globally, with its occurrence associated with human existence. However, relatively little on population sizes of this species in rural landscapes has been documented. The study... -
Tarantulas (Araneae: Theraphosidae) in the pet trade in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Tinyiko C Shivambu --- , South Africa Ndivhuwo Shivambu --- , South Africa Robin Lyle --- , South Africa Adriaana Jacobs --- , South Africa Sabrina Kumschick --- , South Africa Stefan H Foord --- , South Africa Mark P Robertson --- , South AfricaMany alien species have been introduced around the world as part of the pet trade, and some have escaped captivity and become invasive. In South Africa, many species of tarantula (Theraphosidae) are kept as pets. It is not known which... -
Systematics of Hyperolius mitchelli Loveridge, 1953 and Hyperolius rubrovermiculatus Schiøtz, 1975 (Anura: Hyperoliidae) and assignment of populations from northern Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Beryl A Bwong --- Zoology Department, National Museums of Kenya, Kenya Christopher D Barratt --- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Germany Simon P Loader --- Department of Life Sciences, Natural History Museum, United Kingdom Joash O Nyamache --- Zoology Department, National Museums of Kenya, Kenya Michele Menegon --- Science Museo of Trento, Via della Scienza e del lavoro, Italy Patrick K Malonza --- Zoology Department, National Museums of Kenya, Kenya Peter Nagel --- Department of Environmental Sciences, University of Basel, Switzerland Lucinda P Lawson --- Department of Biological Sciences, University of Cincinnati, United StatesThe taxonomic validity of the East African reed frogs Hyperolius mitchelli Loveridge, 1953 and Hyperolius rubrovermiculatus Schiøtz, 1975 has been questioned in the literature, with the latter having been recognised as a distinct lineage, but also synonymised as a colour... -
Seasonal habitat utilisation and morphological characteristics of Chamaeleo dilepis on Telperion Nature Reserve, Mpumalanga, South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Trevor L O’Donoghue --- Applied Behavioural Ecology and Ecosystem Research Unit, Department of Environmental Sciences, University of South Africa, South Africa Kerry Slater --- Applied Behavioural Ecology and Ecosystem Research Unit, Department of Environmental Sciences, University of South Africa, South Africa Leslie R Brown --- Applied Behavioural Ecology and Ecosystem Research Unit, Department of Environmental Sciences, University of South Africa, South AfricaLimited information on the habitat utilisation and seasonal activity of flap-necked chameleons (Chamaeleo dilepis) is available. We investigated habitat utilisation, seasonal distribution, and sexual dimorphism of C. dilepis on Telperion Nature Reserve (a privately protected natural area) in South Africa... -
Large Pleistocene avian tracks on the Cape south coast of South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Charles W Helm --- , South Africa Martin G Lockley --- , United States Hayley C Cawthra --- , South Africa Jan C De Vynck --- , South Africa Carina JZ Helm --- , South Africa Guy HH Thesen --- , South AfricaPrior to the inception of the Cape south-coast ichnology project, only one avian tracksite had been reported from South Africa. An additonal twenty-nine sites have now been identified. Although there are limitations and challenges inherent in the study of fossil... -
The role of size and number of forest patches in the conservation of bird species in a fragmented landscape
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kwaku Brako Dakwa --- , Ghana Bright Opoku --- , Ghana Judith Toku --- , GhanaWe used presence data to evaluate the role of small patches in bird conservation in the Cape Coast Metropolis of Ghana by surveying 24 forest patches. Cumulative species-area and number curves were plotted by ordering patch size from large to... -
Current and potential threat of psyllids (Hemiptera: Psylloidea) on eucalypts
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Privilege T Makunde --- , South Africa Bernard Slippers --- , South Africa Daniel Burckhardt --- , Switzerland Dalva L de Queiroz --- , Brazil Simon A Lawson --- , Australia Brett P Hurley --- , South AfricaThe introduction of Australian psyllids to non-native ranges across the globe is continually increasing. This is due to an increase in global trade and human movement, exacerbated by climate change. Several psyllids have been recorded as pests of eucalypts in... -
Status of a decennial marine invasion by the bisexual mussel Semimytilus algosus (Gould, 1850) in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: KCK Ma --- , South Africa CD McQuaid --- , South Africa A Pulfrich --- , South Africa TB Robinson --- , South AfricaThe invasion history and current distribution of the alien marine mussel, the bisexual mussel Semimytilus algosus, on rocky shores of South Africa is described in this study. The eastern edge of its distribution has been monitored since 2014, and the... -
Spatial and temporal diversity of non-native biofouling species associated with marinas in two Angolan bays
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: LB Pestana --- , Brazil GM Dias --- , Brazil AC Marques --- , BrazilArtificial structures in coastal areas provide substrates which facilitate the spread of non-native species. Published records of introduced benthic species in the coastal waters of Angola are scarce, and so far these have numbered 29 non-native species and seven cryptogenic... -
Frequent burning maintained a stable grassland over four decades in the Drakensberg, South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Craig D Morris --- , South Africa Colin S Everson --- , South Africa Terry M Everson --- , South Africa Paul J Gordijn --- , South AfricaThe mesic montane grasslands of the uKhahlamba-Drakensberg, which produce cured flammable fuel, have evolved under and are sustained by recurrent fires. The Brotherton burning trial (12 replicated treatments) was established at Cathedral Peak (1 890 m asl) in 1980 to... -
The wheat curl mite (Aceria tosichella, Prostigmata: Eriophyidae) could establish in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Tamryn S Venter --- , South Africa Mark P Robertson --- , South Africa Davina L Saccaggi --- , South Africa Katelyn T Faulkner --- , South AfricaBiological invasions by agricultural pests can have serious negative impacts, including decreases in crop yield and economic losses. The MT-1 and MT-8 genotypes of the wheat curl mite (Aceria tosichella) (hereafter ‘WCM’ refers to these two genotypes) are globally distributed... -
Modelling continental range shift of the African elephant (Loxodonta africana) under a changing climate and land cover: implications for future conservation of the species
Item type: Journal Article • Journal: African Zoology • Authors: Sintayehu W Dejene --- , Ethiopia Kudzai S Mpakairi --- , Rajapandian Kanagaraj --- , Germany Yussuf A Wato --- , Kenya Sewnet Mengistu --- , EthiopiaClimate and land use change are anticipated to alter the distribution of wildlife, due to their impact on the quantity and quality of forage availability, water cycle, as well as competition for key resources. Using an ensemble of species distribution... -
Macrofauna associated with intertidal mussel beds in the Knysna estuarine embayment, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Alan N Hodgson --- , South Africa Frances Smith --- , South Africa Peter Smith --- , South Africa Louw Claassens --- , South AfricaThe alien invasive mussel, Mytilus galloprovincialis, forms biogenic habitats in the embayment of Knysna Estuary. Invertebrate macrofauna inhabiting mussel beds were sampled from six sites in the embayment. In addition, mussel cover, mussel bed depth, density and size of mussels... -
Evaluating Kenya’s coastal gillnet fishery: trade-offs in recommended mesh-size regulations
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Osuka --- , Kenya JA Kawaka --- , Kenya MA Samoilys --- , KenyaGillnets are a widely used fishing gear in Kenya’s artisanal fisheries, yet their mesh sizes are inadequately monitored or regulated. This study evaluated the impacts of gillnets of seven stretched-mesh sizes, through comparative analysis of species-related metrics and catch per... -
Abundance and distribution of Antarctic blue whales Balaenoptera musculus intermedia off the Queen Maud Land coast of Antarctica
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: S Paarman --- , South Africa E Vermeulen --- , South Africa E Seyboth --- , South Africa M Thornton --- , South Africa K Findlay --- , South AfricaThe Antarctic blue whale Balaenoptera musculus intermedia was hunted to near extinction in the twentieth century. Current data on the abundance and distribution of the species are lacking owing to the difficulty and expense of surveys under adverse weather conditions... -
Natural regeneration status and soil seed bank composition in IITA Forest Reserve, Ibadan, Oyo State, Nigeria
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Bright Danso Appiagyei --- , Nigeria Akinyele O Adejoke --- , NigeriaThe International Institute of Tropical Agriculture (IITA) Forest Reserve is a secondary rainforest that has been protected since 1965. It serves as a refuge for many species that were once common but have declined, due to urbanisation and population pressure... -
Analysing species site-specific tree growth, mortality and in-growth for miombo woodlands in Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: E E Njoghomi --- , Tanzania S Valkonen --- , K Karlsson --- ,The silvicultural information base for the development of management regimes for Tanzanian miombo woodlands is underdeveloped. The limited and fragmented information on tree growth and stand dynamics has constrained the progress of sustainable management in these woodlands. Therefore, this study... -
Urban birds in the Eastern Cape: local observations from Makhanda (Grahamstown) and future questions
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adrian JFK Craig --- , South Africa Patrick E Hulley --- , South Africa R Lorraine G Mullins --- , South AfricaIn Makhanda (Grahamstown), a non-industrial town with approximately 85 000 inhabitants, we have recorded 174 bird species within the urban area, of which 104 species are likely to breed regularly. The source habitats of these birds include all the surrounding... -
Settlement of the invasive mussel Mytilus galloprovincialis in a warm temperate estuarine embayment in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: J Radloff --- , South Africa AN Hodgson --- , South Africa L Claassens --- , South AfricaMytilus galloprovincialis, a globally successful marine alien invasive species, occupies all artificial hard substrata in the embayment of the Knysna estuary, South Africa. The current study compared temporal and spatial settlement patterns of M. galloprovincialis within this environment. Settlement was... -
Earthworm diversity and density as affected by soil and climatic factors in Raymond Mhlaba municipality, Eastern Cape province, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sixolise Mcinga --- , South Africa Alen Manyevere --- , South Africa P Mnkeni --- , TanzaniaEarthworms play a key role in improving soil health, and their diversity and density are mainly affected by soil and climatic factors. This study determined the effects of rainfall, temperature and selected soil properties on the diversity and density of... -
Reflections concerning spurfowl and francolin species recommendations contained in Mandiwana-Neudani et al. (2019a and 2019b)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Nigel Hunter --- , Kenya Don Turner --- , United Kingdom Nik Borrow --- , United Kingdom Brian Finch --- , Kenya Adam Scott Kennedy --- , United Kingdom Terry Stevenson --- , United Kingdom Neil Baker --- , United Republic of Tanzania Nigel Redman --- , United KingdomRecently, two papers by Mandiwana-Neudani et al. (2019a, 2019b) revisited the taxonomy of all Afrotropical spurfowl and francolins and proposed significant changes at the species level. A careful review of the papers suggests there are key deficiencies and inadequate explanations... -
The importance of adopting an integrative taxonomy framework in species delimitation: Response to Hunter et al. (2021)
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tshifhiwa G Mandiwana-Neudani --- , South Africa Timothy M Crowe --- , South Africa Robin M Little --- , South Africa Rauri CK Bowie --- , South AfricaThe review by Hunter et al. (2021) on the delineation of certain francolin and spurfowl taxa as full species by Mandiwana-Neudani et al. (2019a, 2019b) appears to be largely orientated around their application of the Biological Species Concept (BSC). We... -
Stakeholders’ perceptions of mammal occurrence and abundance on agricultural properties bordering the Boland Mountain Complex, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Willem A Nieman --- , South Africa Brittany C Schultz --- , South Africa Anita Wilkinson --- , South Africa Alison J Leslie --- , South AfricaThe encroachment of agricultural landscapes on natural ecosystems poses a significant threat to native wildlife persistence. In the Boland Mountain Complex (BMC), the presence of mammals was well documented in the 20th century, but an updated account is lacking. This... -
First record of the ant Pheidole megatron Fischer and Fisher, 2013 (Hymenoptera: Formicidae) from Rwanda
Item type: Journal Article • Journal: African Zoology • Authors: Venuste Nsengimana --- , Rwanda Ann Vanderheyden --- , Belgium Sophie Gombeer --- , Belgium Nathalie Smitz --- , Belgium Kenny Meganck --- , Belgium Marc De Meyer --- , Belgium Thierry Backeljau --- , Belgium Brian L Fisher --- , United States Wouter Dekoninck --- , BelgiumWe present the first record of the ant Pheidole megatron Fischer and Fisher, 2013 in Rwanda, a species thought to be endemic to the Malagasy region. Specimens were collected in July 2019, in one of the houses located at Kivumu,... -
Home range size of male dama gazelles, Nanger dama, in an ex situ population in West Texas
Item type: Journal Article • Journal: African Zoology • Authors: Elizabeth Cary Mungall --- , United States Susan M Cooper --- , United StatesDama gazelles (Nanger dama Pallas, 1766) are critically endangered within their native habitat of northern Africa’s Sahelo-Saharan Zone. However, several Texas ranches maintain populations that provide a hedge against extinction and that can provide suitable stock for conservation projects, including... -
The influence of estuary eutrophication on the benthic diatom community: a molecular approach
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Nunes --- , South Africa DA Lemley --- , South Africa GF Matcher --- , South Africa JB Adams --- , South AfricaThe occurrence of harmful algal blooms (HABs) is increasing in frequency and intensity in South African estuaries because of eutrophication. This study used DNA metabarcoding to identify the benthic diatom community structure in the eutrophic Sundays Estuary. The recurrent HAB... -
Movement patterns and growth rate of the whitespotted wedgefish Rhynchobatus djiddensis in southern Africa based on tag-recapture data
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: GL Jordaan --- , South Africa BQ Mann --- , South Africa R Daly --- , South Africa SW Dunlop --- , South Africa PD Cowley --- , South AfricaInformation on the movement ecology of endangered species is critical for the implementation of effective conservation measures. This study made use of a long-term dart tagging dataset to reveal the movement patterns and growth rates of two size classes of... -
Walking with herders: following into the multispecies classroom
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: William Ellis --- , South Africa Clement Cupido --- , South Africa Mogamat Igshaan Samuels --- , South AfricaThe recently developed walking ethnography, or go-along method, to study pastoralists in a participatory manner provides data that the usual sit-down interview is unable to realise, not least because it shifts the power dynamic between researcher and researched. The herder’s... -
Genetic diversity of improved genotypes of Tectona grandis in the state of Mato Grosso, Brazil
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Mariana de Moura Queiroz --- , Brazil Sidney Fernando Caldeira --- , Brazil Alexandre Magno Sebbenn --- , Brazil Daniele Aparecida Alvarenga Arriel --- , BrazilTeak (Tectona grandis) is a tree species native to South-east Asia and widely cultivated in Latin America. In Mato Grosso state, Brazil, teak is the second-most planted forest species due to its high productivity resulting from high adaptability to the... -
Investigating the wood production and adaptability potential of Corymbia hybrid progeny in northern coastal Zululand, South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Robin AW Gardner --- , South Africa David J Lee --- , AustraliaDuring August 2013, two ‘new’ eucalypt taxa × site interaction trials were established in northern coastal Zululand. The main purpose of these trials was to investigate the commercial forestry potential of a range of Corymbia inter-specific hybrids for the region... -
The effects of tree canopies on invasive Lantana camara: a follow-up study 18 years later
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Kiersten McMahon --- , United States David Ward --- , United StatesLantana camara is primarily a bird-dispersed invasive plant species that has spread quickly across South Africa in disturbed areas. We re-examined the distribution of Lantana at Rodger and Twine’s (2002) study site (R&T) in a highly grazed communal area and... -
Changes in vegetation structure, aboveground biomass and soil quality in response to traditional grazing land management practices in the central highlands of Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Teklu Wegi --- , Ethiopia Abubeker Hassen --- , South Africa Melkamu Bezabih --- , Ethiopia Adugna Tolera --- , EthiopiaDespite shrinking pastureland in the central highlands of Ethiopia, as a result of cropping, there has been little detailed work to evaluate effects of traditional grazing land management practices on vegetation and soil attributes. This study aimed to quantify vegetation... -
Biodiversity hotspot revisited: reptile and amphibian assemblages of the Uluguru Mountain Forest Reserves, south-eastern Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Felix J Mkonyi --- Dar es Salaam University College of Education, TanzaniaAlthough the knowledge about the Tanzanian reptiles and amphibians has drastically increased in recent years, the knowledge on the amphibian and reptile fauna of the remaining forest reserves of the Uluguru Mountains (UMs) is only partially known. Amphibians and reptiles... -
A can of worms: Identification issues and morphological conservatism in a large sample of African Green and Bush Snakes (Colubridae: Philothamnus) from Minziro Forest, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Tejs Gørgens Nielsen --- Globe Institute, University of Copenhagen, Denmark Sofie Holdflod Nielsen --- Globe Institute, University of Copenhagen, Denmark Peter Gravlund --- Museum of Eastern Zealand, Denmark David Moyer --- The Field Museum, Illinois, USA and Iringa Anders Galatius --- Aarhus University, Denmark Morten E Allentoft --- Globe Institute, University of Copenhagen, DenmarkThe African green snakes of the genus Philothamnus include c. 21 recognised species distributed across sub-Saharan Africa. Many of the species exhibit high morphological conservatism, exist sympatrically, and can have high population densities. This is presumably the reason why the... -
Dropping plates to pick up aliens: towards a standardised approach for monitoring alien fouling species
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: TG Loureiro --- , South Africa K Peters --- , South Africa TB Robinson --- , South AfricaBiological invasions pose a major threat to biodiversity and significant investment is required to prevent the introduction of alien species, contain introduced populations and mitigate associated impacts. The implementation of standardised long-term monitoring programmes enables the early identification of new... -
Distribution and community structure of at-risk and Data Deficient elasmobranchs in Zavora Bay, Mozambique
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: B O’Connor --- , The Netherlands N Cullain --- , United StatesPersistent threats from fishing pressure and increasing habitat degradation, as well as slow recovery rates resulting from K-selected life histories, are putting increasing numbers of elasmobranch species (sharks, rays and skates) at risk of extinction worldwide. Global declines in elasmobranch... -
Local variations in the response of birds to human presence in urban areas
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tristan Nyatanga --- , Zimbabwe Henry Ndaimani --- , South Africa Tanyaradzwa Gaza --- , ZimbabweStudies that seek to understand the local variations in the response of birds to human disturbance in urban areas are important for conservation. This article investigated the contribution of human population density in the different urban land use zones of... -
The effect of adjacent vegetation on fire severity in Afrotemperate forest along the southern Cape coast of South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Brandon Giddey --- , South Africa Johan A Baard --- , South Africa Lufuno Vhengani --- , South Africa Tineke Kraaij --- , South AfricaRecently two large wildfires (around the towns of Knysna in 2017 and George in 2018) jointly burnt over 80 000 ha in the southern Cape, South Africa. Here, patches of closed-canopy Afrotemperate forest occur within a matrix of fire-prone (native)... -
Convergence and vicariance: speciation of chameleons in the Cape Fold Mountains, South Africa, and the description of three new species of Bradypodion Fitzinger, 1843
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Krystal A Tolley --- South African National Biodiversity Institute, South Africa Colin R Tilbury --- University of Stellenbosch, South Africa Marius Burger --- North-West University, South AfricaThe mechanisms that underpin ecological speciation, morphological convergence and the evolution of ecological morphotypes (ecomorphs) in squamates have allowed for a better appreciation of the speciation process in chameleons. In particular, attention has been drawn to several populations of chameleons... -
Characterising epibenthic diversity and physical drivers in unconsolidated marine habitats of Algoa Bay, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: HJ Truter --- , South Africa LJ Atkinson --- , South Africa CEO von der Meden --- , South Africa D Bailey --- , South Africa W Goschen --- , South Africa AT Lombard --- , South AfricaUnconsolidated marine sediment habitats spatially make up the majority of global ocean seabed, yet benthic faunal patterns and their abiotic drivers remain poorly understood. Benthic research in Algoa Bay, on the south coast of South Africa, has largely focused on... -
Revisiting ‘A monograph on the Polychaeta of southern Africa’: establishing taxonomic research priorities in southern Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: CA Simon --- , South Africa J Kara --- , South Africa DT Clarke --- , South Africa S Sedick --- , South AfricaOriginally published in 1967, John H Day’s work ‘A monograph on the Polychaeta of southern Africa’ is still used widely to identify polychaetes. However, ongoing taxonomic revisions have revealed that several putative cosmopolitan or locally widespread taxa contained in the... -
Macrophyte species diversity and distribution in relation to water quality of the Cheleleka Wetland in Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Haymanot Tesfaye --- , Ethiopia Bikila Warkineh --- , EthiopiaThe Cheleleka Wetland is located in the Ethiopian Rift Valley on the upper shore of Lake Hawassa, after which the regional capital is named. This study investigated the relationship between water quality and the occurrence and diversity of macrophyte species... -
Structural assemblages of plant species in the Owabi Ramsar Wetland in the Ashanti Region of Ghana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Collins A Nsor --- , Ghana Rockson Acolatse --- , Ghana John N Mensah --- , Ghana Samuel K Oppong --- , Ghana Daniel Dompreh --- , Ghana Louis Addai-Wireko --- , GhanaAnthropogenic activities as predictors of species assemblages in the Owabi Ramsar Wetland were investigated between May and September 2019. Data were collected in 154 plots at five different sites. The prevalence index method was used to categorise the species into... -
Comparative avifaunal richness and diversity in invasive Acacia dealbata patches and adjacent montane grasslands
Item type: Journal Article • Journal: African Zoology • Authors: Jessica Seath --- , South Africa Charlie Shackleton --- , South AfricaInvasive alien species are regarded as the second greatest threat to biodiversity globally. Yet, at a local scale their effects may vary, underlying the requirement for more local-scale studies across taxa and settings. Here we consider the effects of an... -
Assessment of plant species composition and natural regeneration in abandoned settlements in the lower montane forest of Kilimanjaro National Park, Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Imani Abinery Kikoti --- , Tanzania Cosmas Mligo --- , Tanzania Henry Joseph Ndangalasi --- , TanzaniaAnthropogenic modification of montane forests to other land uses has significant effects on native vegetation and the ecological functions of plant communities, such as in the forests of Mount Kilimanjaro. This study was carried out in Kilimanjaro National Park at... -
Post-fire tree regeneration from seed of the endangered Nothofagus alessandrii Espinosa in the Maule region of central Chile
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Persy Gómez --- , Chile Sergio Espinoza --- , Chile Pedro Garrido --- , Chile José San Martín --- , Chile Yony Ormazábal --- , ChileThe endemic ruil (Nothofagus alessandrii Espinosa) forest is one of the most endangered forest ecosystems in central Chile, where its regeneration is challenged by factors such as low seedling germination capacity and recently by fire. In this study, we sampled... -
An evaluation of the environmental behaviour, fate and risk of key pesticides used in South African forest plantations
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Noxolo Nokwethemba Ndlovu --- , South Africa Keith Little --- , South Africa Brenda Baillie --- , New Zealand Carol Rolando --- , New ZealandPesticides are important for the management of pests and diseases that have a negative impact on the sustainability of the forestry industry. Nevertheless, there is a trend to reduce pesticide use owing to the potential detrimental impacts they pose to... -
Weed species composition and abundance in the main coffee production systems and regions of Ethiopia
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Abera Daba --- , Ethiopia Mekuria Tadesse --- , Ethiopia Selamawit Negassa Chawaka --- , Ethiopia Gezahegn Berecha --- , EthiopiaA weed population survey was carried out to assess the variability in weed species composition and abundance in the main coffee production systems and regions of Ethiopia. A total of 168 coffee fields were assessed using a quadrat count in... -
Phylogenetic diversity of Actinobacteria from Momela soda lakes, Arusha National Park, Tanzania
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Sadikiel E Kaale --- , Tanzania Ally Mahadhy --- , Tanzania Modester Damas --- , Tanzania Clarence A Mgina --- , Tanzania Thomas J Lyimo --- , TanzaniaThe Momela soda lakes consist of seven small, hypersaline, alkaline lakes, situated in the East African rift valley at Arusha National Park, Tanzania. The lakes are fed by separate underground water sources with slightly varying mineral contents resulting in colour... -
Macro- and micronutrient composition of estuarine roundherring (Gilchristella aestuaria) (Pisces: Clupeidae) in the Eastern Cape, South Africa: a potential dietary source of essential nutrients
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Zvavahera --- , South Africa S Hugo --- , South Africa NG Vine --- , South Africa OLF Weyl --- , South AfricaSouth Africa lacks research on the nutritional value of inland small fish species available to poor rural communities, despite the potential of such species to mitigate micronutrient deficiencies. Here we provide the first nutrient composition analysis for estuarine roundherring Gilchristella... -
First record from the southern hemisphere: significant range extension, new host record and molecular characterisation of Ligophorus minimus Euzet et Suriano, 1977 (Monogenea: Dactylogyridae)
Item type: Journal Article • Journal: African Zoology • Authors: Aline A Acosta --- , South Africa Kerry A Hadfield --- , South Africa Nico J Smit --- , South AfricaThe gill monogeneans from the genus Ligophorus Euzet et Suriano, 1977 are parasites strictly host specific to mugilid fishes, occurring on a number of mullet species. In South Africa, monogeneans from marine and estuarine teleost fishes are still poorly known... -
Citizen science survey of non-native Rose-ringed Parakeets Psittacula krameri in the Durban metropole, KwaZulu-Natal, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Tinyiko C Shivambu --- , South Africa Ndivhuwo Shivambu --- , South Africa Colleen T Downs --- , South AfricaThe Rose-ringed Parakeet Psittacula krameri (Scopoli, 1769) has become invasive in several countries, including South Africa, mainly through the pet trade releases and escapees. We conducted an online questionnaire survey targeting the residents in Durban, eThekwini Municipality, KwaZulu-Natal, South Africa... -
Diet of a generalist mammalian mesocarnivore in an urban matrix
Item type: Journal Article • Journal: African Zoology • Authors: Jarryd P Streicher --- , South Africa Melanie B Streicher --- , South Africa Tharmalingam Ramesh --- , South Africa Colleen T Downs --- , South AfricaAnthropogenic habitat conversion through urban sprawl is driving mesocarnivores to modify their behaviour and ecology. Thorough knowledge of their feeding ecology is fundamental in understanding the pressures imposed on mesocarnivores by urbanisation. The diet of the water mongoose Atilax paludinosus... -
Evaluation of soil physico-chemical properties as affected by canopies of scattered agroforestry trees on croplands
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Shimbahri Mesfin --- , Ethiopia Hailay Haileselassie --- , EthiopiaAgroforestry tree species play an important role in improving soil fertility. Though studies have confirmed that different species show different potentials to improve soil fertility, it is difficult to compare them as the studies were conducted in different areas. The... -
An ethogram for the nesting and breeding behaviour of the Hooded Vulture Necrosyrtes monachus
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Fiona K Fern --- , South Africa Lindy J Thompson --- , South Africa Colleen T Downs --- , South AfricaMost vulture species worldwide are in decline and of conservation concern. Despite the growing attention to vultures, relatively few studies have focused on their breeding behaviour. Understanding all aspects of a species’ behaviour and its behavioural needs could help to... -
The influence of nest location and the effect of predator removal on Cape Gannet Morus capensis egg predation by Kelp Gulls Larus dominicanus vetula
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Zanri Strydom --- , South Africa Lauren J Waller --- , South Africa Mark Brown --- , Hervé Fritz --- , South Africa Jan A Venter --- , South AfricaThe breeding range of the Cape Gannet Morus capensis currently extends to six of the ten islands formerly utilised by this species. The Cape Gannet is classified as an endangered species with a rapidly declining population. Since the mid-1950s, the... -
The status of arboreta in South Africa and the taxa they contain
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: MD Cheek --- , South Africa JRU Wilson --- , South Africa DM Richardson --- , South Africa Ş Procheş --- , South AfricaCollections of living trees (hereafter arboreta) are important for conservation, research on species selection for forestry, and as sentinel sites for monitoring pests and diseases. Arboreta can also be the source of propagules for biological invasions. Between 2012 and 2022... -
Correlation of variations in species abundance of Atlantic forests regenerating on abandoned pastures with different environmental and spatial variables
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: João Paulo de Maçaneiro --- , Brazil Laio Zimermann Oliveira --- , Brazil Lauri Amândio Schorn --- , Brazil Franklin Galvão --- , Brazil Guilherme Salgado Grittz --- , Brazil André Luís de Gasper --- , BrazilThe conversion of native forests into pastures is still a common practice in Brazil. Abandoned pastures have great potential for natural regeneration and therefore could play an important role in meeting the enormous demand for forest restoration. Few studies, however,... -
Estimating the economic damage caused by jellyfish to fisheries in Morocco
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: B Mghili --- University Abdelmalek Essaâdi, Morocco M Analla --- University Abdelmalek Essaâdi, Morocco M Aksissou --- University Abdelmalek Essaâdi, MoroccoAlthough there is great fluctuation in annual recordings of jellyfish along the Moroccan Mediterranean coast and an absence of long-term datasets, there is a common perception that jellyfish numbers are rising. To better understand the possible economic losses sustained by... -
Metabarcoding of zooplankton confirms southwards dispersal of decapod crustacean species in the western Indian Ocean
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Govender --- Oceanographic Research Institute (ORI), South Africa JC Groeneveld --- Oceanographic Research Institute (ORI), South Africa SP Singh --- Oceanographic Research Institute (ORI), South Africa S Willows-Munro --- University of KwaZulu-Natal, South AfricaMetabarcoding to determine marine zooplankton species composition is a fast-developing method, yet to be fully standardised. DNA barcode reference libraries that link species to barcode sequences remain incomplete, taxonomically imprecise, and biased towards well-studied regions. We used metabarcoding to determine... -
Mistaken identity: challenges with specimen identification for morphologically conservative skinks (Trachylepis) leads to taxonomic error
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Kirstin Stephens --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa Graham J Alexander --- University of the Witwatersrand, South Africa Buyisile G Makhubo --- School of Life Sciences, University of KwaZulu-Natal, South Africa Nicolas S Telford --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa Krystal A Tolley --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South AfricaIt is commonly recognised that natural history datasets contain locality errors that can compromise the utility of those datasets. However, another source of error in these datasets is taxonomic misidentifications, and this type of error is potentially common, particularly with... -
New records and a notable observation of potentially predator-avoiding amplectic behaviour in Boophis erythrodactylus from Madagascar
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Robin Kurian Abraham --- Biodiversity Institute and Department of Ecology and Evolutionary Biology, University of Kansas, United States Carl Richard Hutter --- Biodiversity Institute and Department of Ecology and Evolutionary Biology, University of Kansas, United StatesThe Red-fingered Bright-eyed Frog Boophis erythrodactylus is an endemic, range-restricted arboreal frog found only in the eastern rainforests of Madagascar. We report new localities for this species, along with locality records for its sister species B. tasymena, including localities where... -
Thermal physiology of Tropical House Geckos (Hemidactylus mabouia) in a cool temperate region of South Africa.
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: S Welman --- Nelson Mandela University, South Africa I Ibarzabal --- Nelson Mandela University, South AfricaTemperature profoundly influences the functioning of ectotherms and understanding the thermal biology of invasive species affords valuable insights regarding the suitability of different habitats. Yet, this remains an understudied aspect in the field of invasion biology. Here, we investigated the... -
Using riparian plant species to locate the 1:2-year floodline on single channel rivers
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: MK Reinecke --- , South Africa CA Brown --- , South Africa KJ Esler --- , South Africa JM King --- , South AfricaRiparian zones can be characterised botanically into two main areas, a wet bank and a dry bank. These areas have been linked to the duration of inundation by river flow, the boundary between the two being the 1:2 year floodline... -
The application of Bayesian networks to evaluate risks from multiple stressors to water quality of freshwater ecosystems
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: V Wepener --- , South Africa GC O’Brien --- , South AfricaIt is difficult to predict and manage the ecological consequences of multiple water quality stressors on our freshwater systems. This is due to the dynamism of the source-stressor-response relationships and multiple factors including lack of data, complex impact pathways and... -
A Bat Hawk Macheiramphus alcinus pair preyed primarily on bats and birds that forage in clutter-edge and open-air habitat groups
Item type: Journal Article • Journal: African Zoology • Authors: G Malan --- , South Africa E Harris --- , South Africa T Harris --- , South Africa A Monadjem --- , EswatiniThis study aimed to analyse the diet of a pair of Bat Hawks Macheiramphus alcinus, based on regurgitated pellets, and the associated habitat-foraging groups that the prey species belonged to. A total of 908 regurgitated pellets were collected from underneath... -
Crested Guineafowl and samango monkey associations
Item type: Journal Article • Journal: African Zoology • Authors: Jacco J Leemans --- , The Netherlands Birthe Linden --- , South Africa Frank van Langevelde --- , The NetherlandsAssociations between animals of different species have been observed for a large variety of taxa. These polyspecific groups are thought to provide advantages to at least one of the species involved, especially foraging benefits or reduced predation risk. In the... -
Genetic and morphological variation of Woodland Kingfisher Halcyon senegalensis reveals cryptic mitochondrial lineages and patterns of mitochondrial–nuclear discordance
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Monica Mwale --- South African National Biodiversity Institute (SANBI), South Africa Desiré L Dalton --- South African National Biodiversity Institute (SANBI), South Africa Anna S Kropff --- South African National Biodiversity Institute (SANBI), South Africa Kim Labuschagne --- South African National Biodiversity Institute (SANBI), South Africa Isa-Rita Russo --- Cardiff University, United Kingdom Samuel T Osinubi --- University of Cape Town, South AfricaThe Woodland Kingfisher Halcyon senegalensis is widely distributed throughout sub-Saharan Africa and occupies a wide variety of woodland and savannah habitat. Thus far, three subspecies have been described based on morphological variation. In the present study, using western, eastern and... -
The extent of hybridisation between largemouth bass and Florida bass across two river systems in South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Dumisani Khosa --- , South Africa John S Hargrove --- , South Africa Eric Peatman --- , United States Olaf LF Weyl --- , South AfricaNative to North America, largemouth bass Micropterus salmoides (Lacepède, 1802) were introduced in South Africa in 1928. Florida bass Micropterus floridanus (Lesueur, 1822) were introduced to enhance existing largemouth bass fisheries in 1980. While largemouth bass and Florida bass readily... -
Effect of slope aspect on vegetation characteristics in mountain rangelands of Tajikistan: considerations for future ecological management and restoration
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Mounir Louhaichi --- , Tunisia Rajabov Toshpulot --- , Uzbekistan Hloniphani Peter Moyo --- , Jordan Azaiez Ouled Belgacem --- , Kingdom of Saudi ArabiaTajikistan’s rangelands are mostly mountainous and consist of summer and winter pastures. Vegetation structure and composition in these diverse landscapes are generally influenced by environmental factors. The objective of this study was to assess the effects of aspect on vegetation... -
Breeding status of invasive Rose-ringed Parakeets Psittacula krameri in Durban, South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Tinyiko C Shivambu --- University of KwaZulu-Natal, South Africa Ndivhuwo Shivambu --- University of KwaZulu-Natal, South Africa Colleen T Downs --- University of KwaZulu-Natal, South AfricaThe Rose-ringed Parakeet Psittacula krameri has established feral populations in South African suburban areas. However, the information on the breeding biology of parakeets remains poorly documented in the country. We assessed parakeets’ breeding status and behaviour by locating their roost... -
Changing use of species and hybrids in South African forest plantations
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Andrew R Morris --- Institute for Commercial Forestry Research, South AfricaSouth Africa has 1.2 million hectares of plantations developed progressively through the 20th century. These occur from 23° to 34°S, from near sea level to 2 000 m above sea level and in both Mediterranean winter rainfall and summer subtropical... -
Impacts and trapping of ambrosia beetles Euwallacea fornicatus and E. similis in Acacia plantations in Vietnam
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tran Xuan Hung --- Vietnamese Academy of Forest Sciences, Vietnam Pham Quang Thu --- Vietnamese Academy of Forest Sciences, Vietnam Nguyen Minh Chi --- Vietnamese Academy of Forest Sciences, Vietnam Le Van Binh --- Vietnamese Academy of Forest Sciences, Vietnam Bernard Dell --- Vietnamese Academy of Forest Sciences, VietnamThere are over two million hectares of Acacia plantations in Vietnam and loss from infestations of ambrosia beetles is of increasing concern. In this study, we first determined the key taxa and the extent of damage, and then identified effective... -
Diversity and conservation prioritisation of plant species utilised by communities living in the forest areas managed by the Benin National Timber Office
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Sèna Donalde Dolorès Marguerite Déguénon --- University of Abomey-Calavi, Benin Castro Gbêmêmali Hounmenou --- University of Abomey-Calavi, Benin Rodrigue A Idohou --- National University of Agriculture, Benin Brice Tente --- University of Abomey-Calavi, Benin Achille Ephrem Assogbadjo --- University of Abomey-Calavi, Benin Brice Sinsin --- University of Abomey-Calavi, BeninThe diversity of forest resources is threatened in its current form of exploitation by rural communities. In order to contribute to the sustainable use of forest resources, this study aimed to assess the diversity of ‘utilitarian’ plant species (those that... -
A new species of Panaspis Cope (Reptilia: Scincidae) from southern Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Niels H.G. Jacobsen --- , South Africa DonaldG. Broadley --- , ZimbabweThe genus Panaspis in southern Africa is reviewed and a new species, P. maculicollis is described. This species differs from P wahlbergii (A. Smith) in lacking a white ventrolateral stripe, while breeding males have a black patch on the neck... -
Interspecific aggression in flat lizards suggests poor species recognition
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Pius Korner --- ETH‐Zentrum NW, Switzerland MartinJ. Whiting --- University of the Witwatersrand, South Africa J. Willem --- University of Pretoria, South Africa H. Ferguson --- University of Pretoria, South AfricaMistaken identity and competitive exclusion are two alternative hypotheses proposed to explain interspecific aggression between males. We examined agonistic behaviour in males of two lizard species: Platysaurus minor and P. monotropis. In each of nine outdoor field enclosures, we maintained... -
A new tree toad from the Ukaguru mountains, Tanzania
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Alan Channing --- University of the Western Cape, South Africa W. T. Stanley --- Field Museum of Natural History, USAA new bufonid from the Ukaguru Mountains, Tanzania is described. We erect a new genus to accommodate this taxon. It is a large tree toad with well‐developed discs and an omosternum, but lacks parotid glands, tympanum and columella. -
Description of a new cryptic species of African sand frog, Tomopterna damarensis (Anura: Ranidae), from Namibia
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Abeda Dawood --- University of Pretoria, South Africa Alan Channing --- University of the Western Cape, South AfricaSand frogs of the African genus Tomopterna Duméril and Bibron, 1841 comprise seven described cryptic species. In this paper we describe a new species from Khorixas, north west Namibia. It is considered a distinct form based on the advertisement call,... -
A new stream frog from Tanzania (Anura: Ranidae: Strongylopus)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Alan Channing --- University of the Western Cape, South Africa TimR. B. Davenport --- Wildlife Conservation Society, TanzaniaA new species of stream frog in the genus Strongylopus is described from Kitumbeine Forest, situated on an isolated extinct volcano in northern Tanzania. This species is distinguished from S. merumontanus in Tanzania on the basis of a larger tympanum,... -
On the identity of lacerta punctata Linnaeus 1758, the type species of the genus Euprepis Wagler 1830, and the generic assignment of Afro‐Malagasy skinks
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AaronM. Bauer --- Villanova University, United States of AmericaA recent phylogenetic revision placed Afro‐Malagasy Mabuya Fitzinger, 1826 into the genus Euprepis Wagler, 1830, with the type species Lacerta punctata Linnaeus, 1758 (syn. Mabuya homalocephala fide Andersson [1900]). Identification of L. punctatus with Euprepis destabilizes existing name usage for... -
Two new cryptic species of breviceps (Anura: Microhylidae) from Southern Africa
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: LeslieR. Minter --- University of the North, South AfricaBreviceps sopranus sp. nov. and Breviceps bagginsi sp. nov. are described and distinguished from other sympatric Breviceps spp. by the structure of their advertisement calls: a long, unpulsed, high‐pitched whistle in the former, and a high‐pitched trill of moderate length... -
A new species of hemidactylus (Squamata: Gekkonidae) from West Africa, and comments on species hitherto confused with H. Muriceus
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Klaus Henle --- Umweltforschungszentrum Leipzig‐Halle GmbH, Germany Wolfgang Böhme --- Zoologisches Forschungsinstitut und Museum Alexander Koenig, GermanyWe describe a new species of Hemidactylus, H. pseudomuriceus. It is very similar to H. muriceus but differs in the number of internasal granules and has a central row of enlarged instead of narrow subcaudal scales. The new species lives... -
A new species of Arthroleptella Hewitt, 1926 (Anura: Ranidae) from the Groot Winterhoek mountains of the Western Cape province, South Africa
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: AndrewA. Turner --- Western Cape Nature Conservation Board, South Africa AthertonL. de Villiers --- Western Cape Nature Conservation Board, South Africa Abeda Dawood --- University of Pretoria, South Africa Alan Channing --- University of the Western Cape, South AfricaA new species of Arthroleptella (moss frog), is described from the Groot Winterhoek Mountains in the Western Cape Province, South Africa. The new species is allopatric to other Arthroleptella species. It is distinguished from other Arthroleptella species by its advertisement... -
A new species of pseudoboodon (Reptilia: Serpentes) from the central highlands of Ethiopia; with notes on some other members of the genus
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Stephen Spawls --- , EnglandA new highly distinctive species of Pseudoboodon is described from a single locality in the central highlands of Ethiopia. It is distinguished from its three congeners by differences in colour pattern, head shape and lepidosis. Some additional notes on other... -
A new sand frog from central Tanzania (Anura: Ranidae: Tomopterna)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Alan Channing --- University of the Western Cape, South Africa DavidC. Moyer --- Wildlife Conservation Society, Tanzania Abeda Dawood --- University of Pretoria, South AfricaA new species of sand frog in the genus Tomopterna is described from the highlands of south‐central Tanzania. It is distinguished from the other three species of sand frogs in East Africa on the basis of a low‐pitched advertisement call,... -
A new rain frog from Tanzania (Microhylidae: Breviceps)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Alan Channing --- University of the Western Cape, South Africa Les Minter --- University of the North, South AfricaA new species of Breviceps is described from the south‐central highlands of Tanzania. It is similar in colour pattern to Breviceps mossambicus from Tanzania, but differs in advertisement call, and details of morphology. It is genetically distinct from Breviceps poweri,... -
A new cryptic frog of the genus Boophis from the northwestern rainforests of Madagascar
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Miguel Vences --- University of Amsterdam, The Netherlands Frank Glaw --- Zoologische Staatssammlung, GermanyWe describe a new species of arboreal frog of the Boophis mandraka group (Anura: Mantellidae) from Manongarivo Special Reserve in north‐western Madagascar. This new species is morphologically similar to the other species of this group: B. liami, B. mandraka, and... -
A new species of rupicolous Cordylus Laurenti 1768 (Sauria: Cordylidae) from Northern Mozambique
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: WilliamR. Branch --- Bayworld (formerly Port Elizabeth Museum), South Africa Mark‐Oliver Rödel --- Biocenter of the University, Germany Johan Marais --- University of the Witwatersrand, South AfricaA new rupicolous girdled lizard, Cordylus meculae Branch, Rödel & Marais, is described from Serra Mecula in the Niassa Game Reserve, northern Mozambique. Morphologically it is closest to C. rhodesianus ‐ which is restricted to the Eastern Highlands of Zimbabwe... -
A new cryptic Dainty Frog from East Africa (Anura: Ranidae: Cacosternum)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Alan Channing --- University of the Western Cape, South Africa Caroline Brun --- Neuroscience Research Building 1, USA Marius Burger --- University of the Western Cape, South Africa Severine Febvre --- University of the Western Cape, South Africa David Moyer --- Wildlife Conservation Society, TanzaniaWe describe a new species of dainty frog in the genus Cacosternum (Ranidae) from East Africa. It is similar morphologically to Cacosternum boettgeri from the interior of southern Africa, and is distinguished on the basis of an advertisement call with... -
A new forest toad from the Ukaguru Mountains, Tanzania (Bufonidae: Nectophrynoides)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Alan Channing --- University of the Western Cape, South Africa Michele Menegon --- Museo Tridentino di Scienze Naturali, Italy Sebastiano Salvidio --- DIP.TE.RIS Corso Europa 26, Italy Scott Akker --- , United KingdomA new species of Nectophrynoides is described from the Ukaguru Mountains of Tanzania. It is distinguished from the other species in the genus by a combination of morphological characters. This is the only African bufonid known with a biphasic vocalization. -
Distribution patterns of amphibians from the Kakamega forest, Kenya
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Susanne Schick --- Mainz University, Germany Michael Veith --- University of Amsterdam, The Netherlands Stefan Lötters --- University of Amsterdam, The NetherlandsWe discuss generalized geographical range patterns for the 24 anuran species that occur in the Kakamega Forest, western Kenya. Eight distributions are distinguished: from “western Equatorial Rift Valley” to almost entire sub‐Saharan. The former may be more common than previously... -
A new species of Running Frog, (Kassina, Anura: Hyperoliidae) from Unguja Island, Zanzibar, Tanzania
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: CharlesA. Msuya --- University of Dar es Salaam, Tanzania KimM. Howell --- University of Dar es Salaam, Tanzania Alan Channing --- University of the Western Cape, South AfricaA new species of Kassina is described from Unguja Island, Zanzibar, East Africa. It is distinguished from other species in its genus by an advertisement call that is pulsed, frequency modulated, and with a longer duration than that of K... -
A new Dwarf Chameleon (Sauria: Bradypodion Fitzinger, 1843) from the Cape Fold Mountains, South Africa
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: WilliamR. Branch --- Bayworld (Port Elizabeth Museum), South Africa KrystalA. Tolley --- South African National Biodiversity Institute, South Africa ColinR. Tilbury --- University of Stellenbosch, South AfricaA new dwarf chameleon, Bradypodion atromontanum Branch, Tolley & Tilbury sp. nov., is described from mountain fynbos habitat in the Great Swartberg Mountains, Western Cape Province, South Africa. It is closest geographically to Bradypodion gutturale but distinguished by its smaller... -
A new species of tortoise of the genus Homopus (Chelonia: Testudinidae) from southern Namibia
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: WilliamR. Branch --- Port Elizabeth Museum, South AfricaHomopus bergeri Lindholm 1906 was based on a single partial shell from Namibia. No other Homopus were recorded from the country until a population of Homopus was discovered in the Aus region, southern Namibia, in 1955. It was originally referred... -
Herpetofaunal utilisation of riparian buffer zones in an agricultural landscape near Mtunzini, South Africa
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Bryan Maritz --- University of the Witwatersrand, South Africa GrahamJ. Alexander --- University of the Witwatersrand, South AfricaWe measured herpetofaunal species richness and abundance in riparian and non‐riparian habitats of an agriculture‐dominated landscape to compare herpetofaunal utilisation of these two habitat types. Riparian areas hosted higher mean species richness and abundance than non‐riparian areas. Riparian and non‐riparian... -
A new species of Trachylepis Fitzinger, 1843 (Squamata: Scincidae) from central African forests
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Laurent Chirio --- Muséum national d'Histoire naturelle, France Ivan Ineich --- Muséum national d'Histoire naturelle, France Andreas Schmitz --- Muséum d'Histoire naturelle de la Ville de Genève (MHNG), Switzerland Matthew LeBreton --- CRESAR, CameroonIntensive collection and field observations in the Central African Republic revealed a previously undescribed skink species of the genus Trachylepis. Morphologically this species seems to be related to Trachylepis boulengeri and/or T. polytropis, but genetic analysis showed that this is... -
Hiding in plain sight: Another cryptic dainty frog from the highlands of Kenya (Anura: Pyxicephalidae: Cacosternum)
Item type: Journal Article • Journal: The Journal of the Herpetological Association of Africa • Authors: Alan Channing --- University of the Western Cape, South Africa Andreas Schmitz --- Muséum d'histoire naturelle, SwitzerlandA new species of dainty frog from the Kinangop Plateau in Kenya is described. It is geographically close to Cacosternum plimptoni, from which it is difficult to separate on morphology. It is significantly different from other East African species on... -
Potential effects of predicted climate change on the endemic South African Dwarf Chameleons, Bradypodion
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DarrenT. Houniet --- South African National Biodiversity Institute, South Africa Wilfried Thuiller --- Université J. Fourier, France KrystalA. Tolley --- South African National Biodiversity Institute, South AfricaThe niche concept implies that a relationship exists between a species and its environment, while macro‐ecological theory suggests that an important attribute of a species’ environment is climate. Thus, changes in climate could affect individual species, but also communities. Here,... -
Typhlosaurus jappi Broadley, 1968, a Valid Species of Acontine Skink
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Victoria Schneider --- Villanova University, USA AaronM. Bauer --- Villanova University, USANew evidence from scalation, dental, and reproductive traits supports the recognition of the Barotseland Blind Legless Skink, Typhlosaurus jappi, as a valid species distinct from T. lineatus. -
A new species of chameleon (Sanria: Chamaeleonidae: Kinyongia) from the Magombera forest and the Udzungwa Mountains National Park, Tanzania
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Michele Menegon --- Museo Tridentino di Scienze Naturali, Italy KrystalA. Tolley --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa Trevor Jones --- c/o Udzungwa Mountains National Park, Tanzania Francesco Rovero --- Museo Tridentino di Scienze Naturali, Italy AndrewR. Marshall --- University of York, UK ColinR. Tilbury --- University of Stellenbosch, South AfricaA new species of chameleon Kinyongia magomberae sp. nov. (the Magombera chameleon), is described from Magombera forest and the Vdzungwa Mountains National Park, south-central Tanzania. The species status is supported by phylogenetic analyses using mitochondrial and nuclear markers. The new... -
The impacts of past cultivation on the reptiles in a South African grassland
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Gavin P. R. Masterson --- University of the Witwatersrand, South Africa Bryan Maritz --- University of the Witwatersrand, South Africa Darian Mackay --- University of the Witwatersrand, South Africa GrahamJ. Alexander --- University of the Witwatersrand, South AfricaHabitat transfonnation is the primary anthropogenic threat to global biodiversity. Fragmentation of reptile populations following habitat transfonnation within a landscape can lead to the extirpation of species. We investigated the effects of land-use on the species richness and abundance of... -
A further new species of limbless skink, genus Paracontias, from eastern Madagascar
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Jörn Köhler --- Hessisches Landesmuseum Darmstadt, Germany DavidR. Vieites --- Museo Nacional de Ciencias Naturales, CSIC, Spain Frank Glaw --- Zoologische Staatssammlung München, Germany Nathalie Kaffenberger --- Hessisches Landesmuseum Darmstadt, Germany Miguel Vences --- Zoological Institute, Technical University of Braunschweig, GermanyWe describe a new species of the genus Paracontias from a rain forest in the northern Central East of Madagascar based on a single specimen. Paracontias kankana sp. nov. is unique among all known species of Paracontias by exhibiting large... -
The biogeographical influence of the Tankwa Karoo Basin on reptile distribution in south-western South Africa
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Anita Meyer --- Stellenbosch University, South Africa P. le FrasN. Mouton --- Stellenbosch University, South Africa Laco Mucina --- Stellenbosch University, South AfricaPoint distribution data were used to evaluate the biogeographical influence of the arid Tankwa Karoo Basin on the distribution of reptiles in the south-western districts of South Africa. Under-representation of the Tankwa Karoo in the dataset required an additional field... -
Anuran amphibians in a rapidly changing environment – revisiting Lamto, Côte d'Ivoire, 40 years after the first herpetofaunal investigations
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Patrick Joël Adeba --- University of Cocody, Philippe Kouassi --- University of Cocody, Mark-Oliver Rödel --- Leibniz Institute for Research on Evolution and Biodiversity at the Humboldt University Berlin, GermanyWe reinvestigated the anuran amphibian fauna of the Lamto region in Central, Côte d'Ivoire, 40 years after this fauna was assessed for the first time. During this period, the region lost about 90% of the forest cover, resulting in an... -
A new puddle frog (Phrynobatrachidae: Phrynobatrachus) from the Mambilla Plateau in eastern Nigeria
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DavidC. Blackburn --- University of Kansas, USAA new species of puddle frog (Phrynobatrachus) is described from the Kurmin Danko Forest Reserve on the western edge of the Mambilla Plateau in eastern Nigeria. The new species is distinguished from both geographically proximate and closely related Phrynobatrachus species... -
A new gregarious species of Trachylepis (Reptilia: Sauria: Scincidae) from Lolui Island, Lake Victoria, Uganda, with a key to Ugandan Trachylepis
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Rungwe Kingdon --- Gallery Pangolin, UK Stephen Spawls --- , UKA new, distinctive gregarious species of Trachylepis is described from five specimens from Lolui Island, in Lake Victoria, Uganda, East Africa. Living in large groups on rock outcrops, it is distinguished from its congeners by differences in colour pattern and... -
A new species of chameleon (Sauria: Chamaeleonidae: Nadzikambia) from Mount Mabu, central Mozambique
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: WilliamR. Branch --- Port Elizabeth Museum, South Africa KrystalA. Tolley --- South African National Biodiversity Institute, South AfricaNadzikambia is a monotypic genus described to accommodate the Mulanje chameleon, N. mlanjensis. During herpetological surveys of isolated mountains in Mozambique a population of chameleons was discovered on Mount Mabu. It is referable to the genus Nadzikambia, but features of... -
A long-known new species of gecko allied to Pachydactylus bicolor (Squamata: Gekkonidae) from the central Namibian coast
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: MatthewP. Heinicke --- Villanova University, USA LaurenM. Adderly --- Villanova University, USA AaronM. Bauer --- Villanova University, USA ToddR. Jackman --- Villanova University, USAA new species of the ‘northwestern clade’ of Pachydactylus is described from the coast of central Namibia. It has long been considered a population of the widespread species Pachydactylus bicolor, from which it differs in body proportions, in having at... -
Calumma vohibola, a new chameleon species (Squamata: Chamaeleonidae) from the littoral forests of eastern Madagascar
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Philip-Sebastian Gehring --- Technical University of Braunschweig, Germany FanomezanaM. Ratsoavina --- Technical University of Braunschweig, Germany Miguel Vences --- Technical University of Braunschweig, Germany Frank Glaw --- Zoologische Staatssammlung München, GermanyWe describe Calumma vohibola sp. nov., a morphologically distinct chameleon species of the Calumma nasutum species group from littoral forest fragments of the north-central east coast of Madagascar. Males and females of this species differ from all other species of... -
A new species of Hemidactylus (Squamata: Gekkonidae) from Príncipe Island, Gulf of Guinea, West Africa with comments on the African-Atlantic clade of Hemidactylus geckos
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: ElizabethC. Miller --- University of California, USA AnnaB. Sellas --- California Academy of Sciences, USA RobertC. Drewes --- California Academy of Sciences, USAThe remote oceanic Gulf of Guinea islands of São Tomé and Príncipe are home to a highly endemic herpetofauna, which has become the focus of modern, on-going scientific analysis only during the past decade. Until now, the endemic Hemidactylus greeffi... -
Revised phylogeny of African sand lizards (Pedioplanis), with the description of two new species from south-western Angola
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Werner Conradie --- , South Africa G. John Measey --- South African National Biodiversity Institute, South Africa WilliamR. Branch --- , South Africa KrystalA. Tolley --- South African National Biodiversity Institute, South AfricaAlthough reptile diversity in Africa is high, it is poorly represented in Angola, with just 257 species known. Despite its greater surface area and habitat diversity Angola has significantly lower lacertid lizard diversity than adjacent Namibia. This is particularly notable... -
Untangling the complex: molecular patterns in Trachylepis variegata and T. punctulata (Reptilia: Scincidae)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: DanielM. Portik --- Villanova University, USA AaronM. Bauer --- Villanova University, USAThe Mabuya [=Trachylepis] lacertiformis complex is comprised of four species with a high degree of morphological overlap and a convoluted taxonomic history. Of these four species, T. punctulata and T. variegata possess the broadest ranges, together covering much of southern... -
Using modern models to test Poynton's predictions
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Clemens Schreiner --- Zoologisches Forschungmuseum Alexander Koenig, Germany Dennis Rödder --- Zoologisches Forschungmuseum Alexander Koenig, Germany G. John Measey --- Nelson Mandela Metropolitan University, South AfricaIn his seminal work ‘The Amphibia of southern Africa: a faunal study’, Poynton identified and contrasted two centres of amphibian importance, the temperate south-western Cape (“Cape”) and tropical northeast (“Tropical”). With reference to the dominant role of climate fluctuations resulting... -
Temporal changes in allelic variation among Cape Dwarf Chameleons, Bradypodion pumilum, inhabiting a transformed, semi-urban wetland
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Eric M. Katz --- , , South Africa Krystal A. Tolley --- , , South Africa Jacqueline M. Bishop --- , , South AfricaThe Cape Dwarf Chameleon, Bradypodion pumilum, is threatened by extensive habitat loss and transformation in the Western Cape Province of South Africa. As a result, the species exists as a collection of populations inhabiting an increasingly fragmented landscape within a... -
Spatial variability of herbage yield, grazing capacity and plant diversity in a tropical savannah rangeland ecosystem
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: ND Anane --- University of Ghana, Ghana R Ayizanga --- University of Ghana, Ghana FO Sarkwa --- University of Ghana, Ghana T Ansah --- University for Development Studies, Ghana EC Timpong-Jones --- University of Ghana, GhanaTo improve ruminant livestock production, evaluation of rangelands must be a routine. Rangeland evaluation gives information about the vegetation structure, biomass yield and quality. The Guinea savannah rangelands of Ghana lack research that characterises the spatial variability of herbage yield... -
Colonisation theory and invasive biota: the Great Fish River case history, 35 years later
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Pule P Mpopetsi --- Rhodes University, South Africa Wilbert T Kadye --- Rhodes University, South AfricaUsing the Great Fish River, South Africa, Laurenson and Hocutt (1986) proposed a colonisation theory outlining the characteristics of successful invaders and the properties of aquatic habitats that facilitate successful fish invasions. The Great Fish River has modified flow due... -
Diversity of euglenoids in a drinking water source in Burkina Faso (West Africa): implications for sustainability and water quality
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Minata Ouattara --- University Joseph Ki-Zerbo, Burkina Faso Frédéric Zongo --- University Joseph Ki-Zerbo, Burkina Faso Bilassé Zongo --- University Joseph Ki-Zerbo, Burkina FasoEuglenophyta are a group of algae that occur in water polluted by organic matter, which makes them a good indicator for organic pollution. This study aimed to determine the diversity of Euglenophyta, the environmental conditions favourable to their development and... -
Spatio-temporal variation in phytoplankton community structure in backwaters of the Ketar River, central Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Yadesa Chibsa --- Wachemo University, Ethiopia Seyoum Mengistou --- Addis Ababa University, Ethiopia Demeke Kifle --- Addis Ababa University, EthiopiaThis study assessed the spatio-temporal dynamics of the phytoplankton community in backwaters of the Ketar River, central Ethiopia, in relation to water quality and macrophyte coverage. Phytoplankton samples and physicochemical information were collected at six sites along the river over... -
Life-history traits in two invasive species of tilapias in Morocco
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H Ainou --- Mohammed V University, Morocco J Panfili --- IRD, MARBEC (Institut français de recherche pour l'exploitation de la mer, Centre National de la Recherche Scientifique, Institut de Recherche pour le Développement), Université de Montpellier, France A Pariselle --- Mohammed V University, Morocco M Labonne --- IRD, MARBEC (Institut français de recherche pour l'exploitation de la mer, Centre National de la Recherche Scientifique, Institut de Recherche pour le Développement), Université de Montpellier, France H Louizi --- Mohammed V University, Morocco A Benhoussa --- Mohammed V University, Morocco O Berrada Rkhami --- Mohammed V University, Morocco JF Agnèse --- UMR ISEM (Institut de Recherche pour le Développement, Centre National de la Recherche Scientifique, Ecole Pratique de Hautes Etudes), Université de Montpellier, FranceLife-history traits (LHT) of Oreochromis niloticus in the Sidi Mohamed Ben Abdellah reservoir (BA reservoir) and Oreochromis aureus in the Nador Channel were studied and compared with those of other populations in the world. Specimens were collected between June 2018... -
Effects of Acacia melanoxylon, an alien tree species to South Africa, on Afrotemperate forest tree sapling composition
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Tineke Kraaij --- Nelson Mandela University, South Africa Johan A Baard --- , South Africa B Adriaan Grobler --- Nelson Mandela University, South Africa Bayleigh Miles --- Nelson Mandela University, South AfricaThe alien tree Acacia melanoxylon (R.Br.) occurs extensively in the Southern Cape Afrotemperate Forest (South Africa). Concerns exist about its potential negative effects on indigenous tree sapling communities, ultimately with implications for forest composition and structure. We investigated whether Acacia... -
Fine-scale variation reveals high structure and floristic heterogeneity in dry forests of the Cerrado
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Frederico Augusto Guimarães Guilherme --- Instituto de Biociências, Universidade Federal de Jataí, Brasil Deivid Lopes Machado --- Universidade Federal de Jataí, Brasil Gabriel Eliseu Silva --- Universidade Federal de Jataí, Brasil Natanael Moreira Nascimento --- Universidade Federal de Jataí, Brasil Gustavo Luz Ferreira --- Universidade Federal de Jataí, Brasil Kaila de Assis Ressel Pereira --- Universidade Federal de Jataí, Brasil Ana Paula de Souza --- Instituto de Biociências, Universidade Federal de Jataí, Brasil Pollyana de Godoy Borges --- Universidade Federal de Jataí, Brasil Laura Rezende Souza --- Universidade Federal de Jataí, Brasil James Dean Leal Rocha --- Instituto de Biociências, Universidade Federal de Jataí, Brasil Christiano Peres Coelho --- Instituto de Biociências, Universidade Federal de Jataí, Brasil Everton Alves Maciel --- Instituto de Biociências, Universidade Federal de Jataí, Brasil Wendy Carniello Ferreira --- Universidade Federal de Jataí, Brasil Marlon Zortéa --- Instituto de Biociências, Universidade Federal de Jataí, Brasil Steffan Eduardo Silva Carneiro --- Universidade Federal de Jataí, BrasilThis study aimed to compare the floristic and tree structure of two dry forests patches located in a forest remnant encompassed in Cerrado biome, south Goiás state, Brazil. In semideciduous (SF) and deciduous (DF) dry forests, we allocated 25 permanent... -
Presence of the alien Rose-ringed Parakeet Psittacula krameri (Psittacidae) in Mozambique
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Francesca Romana Trezza --- University Eduardo Mondlane – Sapienza University of Rome, Mozambique Ivan da Costa Nerantzoulis --- , Mozambique Silvio Cianciullo --- University Eduardo Mondlane – Sapienza University of Rome, Mozambique Hugo Mabilana --- University Eduardo Mondlane, Mozambique Célia Macamo --- University Eduardo Mondlane, Mozambique Fabio Attorre --- Sapienza University of Rome, Italy Carlos Manuel Bento --- , Mozambique Paolo Ramoni-Perazzi --- University Eduardo Mondlane – Sapienza University of Rome, MozambiqueThe biology of the Rose-ringed Parakeet Psittacula krameri has been widely studied in many of its naturalized habitats around the world. However, its potential status and impacts may have gone unnoticed in regions with limited monitoring. In this report, we... -
New Pleistocene avian ichnosites on South Africa’s Cape south coast
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Charles W Helm --- Nelson Mandela University, South Africa Martin G Lockley --- University of Colorado Denver, United States Andrew S Carr --- University of Leicester, United Kingdom Hayley C Cawthra --- Nelson Mandela University, South Africa Jan C De Vynck --- Nelson Mandela University, South Africa Mark G Dixon --- Nelson Mandela University, South Africa Pieter-Jan Gräbe --- Nelson Mandela University, South Africa Renée Rust --- Nelson Mandela University, South AfricaTwelve new avian ichnosites have been identified on South Africa’s Cape south coast, adding to the 29 sites previously identified. More than half of these 41 avian ichnosites are found along a 9-km stretch of coastline east of Still Bay... -
Diversity and abundance of avifauna in the Suba Forest area, central Ethiopia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Gemechis B Mosisa --- Haramaya University, Ethiopia Nega Tassie --- Bahir Dar University, Ethiopia Sintayehu W Dejene --- Haramaya University, EthiopiaBirds are one of the best-described taxa, but detailed knowledge about most bird species in Ethiopia remains rare, which hinders the development and evaluation of conservation strategies in the region. In this study, we estimated bird species diversity and abundance... -
A meeting with gardenia: an ethnographic exploration of multispecies relationships and space construction in Kirstenbosch National Botanical Garden
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: James Granelli --- University of Cape Town, South AfricaIn an age of climate and ecological breakdown, questions of how we relate to the natural world and the more-than-human beings around us are more important than ever. This ethnography seeks to bring these questions to the Kirstenbosch National Botanical... -
Site- and habitat-dependent variations in the diversity of polychaetes associated with golden kelp Ecklonia radiata holdfasts along the southeast coast of South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: N Nkohla --- Walter Sisulu University, South Africa TS Dlaza --- Walter Sisulu University, South AfricaPolychaetes are important components of the macrofaunal communities associated with golden kelp Ecklonia radiata holdfasts across different spatial scales. However, the polychaete component varies in different habitat types in response to varying environmental conditions. Here, we compared patterns of variation... -
Advertisement call description of the exceedingly rare Phrynomantis affinis (Anura: Microhylidae), with comparisons to P. bifasciatus and range extensions for both species
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Francois S Becker --- National Museum of Namibia, Namibia Alan Channing --- North-West University, South AfricaDespite a relatively broad distribution in Africa, the Spotted Rubber Frog, Phrynomantis affinis, is extremely rarely encountered. Only 18 specimens from 12 localities have been collected with a few additional observations recorded. Virtually nothing of the species’ natural history is... -
Distribution, habitat and vulnerability to climate change of the Endangered Leptopelis xenodactylus
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Kirsty J. Kyle --- North-West University, South Africa Louis H. Du Preez --- North-West University, South Africa James Harvey --- 41 Devonshire Avenue, South Africa Adrian J. Armstrong --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South AfricaLeptopelis xenodactylus is a little-known, Endangered species of frog that is thought to be endemic to the KwaZulu-Natal Province of South Africa. In an effort to determine the distribution of this species more accurately, a working species distribution model was... -
New distribution records and population density of the Critically Endangered Tarzan Chameleon (Calumma tarzan), eastern Madagascar
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Alain JV Rakotondrina --- Madagasikara Voakajy, Madagascar Raphali R Andriantsimanarilafy --- Madagasikara Voakajy, Madagascar Hanta J Razafimanahaka --- Madagasikara Voakajy, Madagascar Achille P Raselimanana --- , Madagascar Rikki Gumbs --- Zoological Society of London, United Kingdom Caleb Ofori-Boateng --- Zoological Society of London, United Kingdom Jody M Taft --- South African National Biodiversity Institute, Kirstenbosch Research Centre, South Africa Fanomezana M Ratsoavina --- Université d’Antananarivo, MadagascarThe distribution and population density of the Critically Endangered Tarzan Chameleon (Calumma tarzan) in eastern humid forests of Madagascar was studied using line transect-distance sampling. Based on the results from species distribution models, eight sites were visited over a four-month... -
A new bullfrog from southern Africa (Pyxicephalidae, Pyxicephalus Tschudi, 1838)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Louis H du Preez --- North-West University, South Africa Edward C Netherlands --- North-West University, South Africa Mark-Oliver Rödel --- , Germany Alan Channing --- North-West University, South AfricaFour species of African bullfrogs are currently recognised. We describe a new species from southern Africa, which can be distinguished on the basis of morphology, advertisement call and DNA sequences. Morphologically it differs from other bullfrogs by a combination of... -
Susceptibility of dwarf chameleons to climate and land use change: a vulnerability framework for conservation planning
Item type: Journal Article • Journal: African Zoology • Authors: Tyron K Clark --- University of the Witwatersrand, South Africa Graham J Alexander --- University of the Witwatersrand, South Africa Krystal A Tolley --- South African National Biodiversity Institute, South AfricaClimate and land use changes are eroding biodiversity globally, and reptiles are highlighted as being particularly susceptible. In South Africa, global changes threaten the persistence of an assemblage of dwarf chameleons (Bradypodion) located in a biodiversity hotspot. We used ecological... -
Geographic distribution of the scorpion fauna in the central Moroccan region of Souss-Massa with potential implications for public health
Item type: Journal Article • Journal: African Zoology • Authors: Fouad Salhi --- Ibn Zohr University, Morocco John P Dunbar --- Institute, University of Galway, Ireland Colin Lawton --- Animal Ecology & Conservation Unit, Ryan Institute, University of Galway, Ireland Jamila Hermas --- Ibn Zohr University, Morocco Jaouad Abou Oualid --- Ibn Zohr University, Morocco Michel M Dugon --- Institute, University of Galway, IrelandDespite the medical importance of North African scorpions, many aspects of their ecology which may be important to understand envenoming patterns throughout their range, remain understudied. The region of Souss-Massa in central Morocco exhibits a high incidence of scorpion envenomings,... -
Effect of invasive species on forest composition in tropical dry forest: a case study of invasion by Gliricidia sepium
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Priya Kaushik --- Dr Harisingh Gour Vishwavidyalaya University (A Central University), India Pranab Kumar Pati --- Dr Harisingh Gour Vishwavidyalaya University (A Central University), India ML Khan --- Dr Harisingh Gour Vishwavidyalaya University (A Central University), India PK Khare --- Dr Harisingh Gour Vishwavidyalaya University (A Central University), IndiaEcological concerns caused by biological invasion have been considered an inevitable threat to global sustainability. The superior competitive ability of invasive plant species (IPS) has an impact on vegetation composition and loss of native flora. Recognising IPS at an early... -
Spatial patterns and environmental drivers of demersal fish assemblages in the Swartkops and Sundays estuarine to marine seascapes, South Africa
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: P Nodo --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa AR Childs --- Rhodes University, South Africa P Pattrick --- Nelson Mandela University, South Africa NC James --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaEstuaries are often observed as the boundary between the ocean and the river, separating coastal environments, rather than being seen as a continuum. Owing to insufficient research on demersal fish communities across nearshore marine to estuarine habitats, particularly in South... -
A conservation assessment of birds in the Karoo region of South Africa: densities, populations, ranges, and trend estimates
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Alan TK Lee --- University of Cape Town, South Africa Dale R Wright --- RMIT University, AustraliaThe Karoo region of South Africa, which includes the Succulent and Nama Karoo biomes, supports a unique avian fauna, with ten bird species occurring exclusively in this arid-zone region and many others exhibiting a strong preference for this habitat. To... -
Crossing Etosha: a history of donkeys in Namibia’s central north
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Luregn Lenggenhager --- University of Cologne, Germany Giorgio Miescher --- University of Basel, Switzerland Romie Nghitevelekwa --- University of Namibia, Namibia Martha Akawa --- University of Namibia, NamibiaDonkeys are a common sight in Namibia’s central north and play an important albeit contested role in rural society and economy. Historically, they were one of the few domesticated animals that were allowed to enter today’s Etosha National Park and... -
Performing multispecies studies in Southern Africa: historical legacies, marginalised subjects, reflexive positionalities
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Paula Alexiou --- University of Cologne, Germany Julia Brekl --- University of Cologne, Germany Emilie Köhler --- University of Cologne, Germany Wisse van Engelen --- University of Cologne, GermanyMultispecies studies are known for tackling human exceptionalism. Whilst the field has seen a remarkable increase in popularity amongst scholars in the humanities and social sciences, critiques argue that it neglects inequalities and consequential differences amongst humans and between humans... -
The beast that never forgot? Baboon conservation and the role of multispecies history
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Sandra Swart --- Stellenbosch University, South AfricaHistory and culture were long seen as definitionally human. As other distinctive traits that once defined our species as unique disappeared, at least we still had those two. But are we really the only species shaped by our pasts and... -
Killing tsetse and/or saving wildlife? A multispecies assemblage in colonial Zambia (1895–1959)
Item type: Journal Article • Journal: Anthropology Southern Africa • Authors: Léa Lacan --- University of Cologne, GermanyThis article investigates the problem of the tsetse fly and the trypanosomiasis disease it conveys as a transforming multispecies assemblage in colonial Zambia from the late nineteenth century until 1959. Based on archival research, it analyses the tsetse fly (Glossina... -
Potential for a commercial inland fishery or just another water storage facility at Spring Grove Dam, KwaZulu-Natal, South Africa?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Matthew J Burnett --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Céline Hanzen --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Alex Whitehead --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Gordon C O’Brien --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Colleen T Downs --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South AfricaSouth Africa's inland fisheries are generally undervalued, though there is developing interest in the sector. Spring Grove Dam in the KwaZulu-Natal Midlands became operational as a water storage facility in 2013 to provide water to the growing urban population in... -
Phylogeographic structuring in a widespread southern African grass snake (Psammophiinae: Psammophylax rhombeatus)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: C. Keates --- Rhodes University, South Africa W. Conradie --- Port Elizabeth Museum (Bayworld), South Africa S. Edwards --- Rhodes University, South AfricaThe structural and environmental heterogeneity within southern Africa has given rise to many morphological forms of Psammophylax rhombeatus distributed throughout the country, with previous studies neglecting the associated molecular significance of these forms. The species’ widespread, generalist ecology coupled with... -
Evolutionary relationships in the African frog family Ptychadenidae, including the first molecular analysis, range extension, and distribution modelling of the monotypic genus Lanzarana
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Tadeáš Nečas --- , Czech Republic Tomáš Mazuch --- Mendel University, Czech Republic Janis Czurda --- , Czech Republic Hassan Sh Abdirahman Elmi --- Charles University, Czech Republic Mark-Oliver Rödel --- , Germany Václav Gvoždík --- , Czech RepublicThe family Ptychadenidae contains three ecologically and morphologically distinct genera: the widespread, species-rich and above-ground dwelling Ptychadena, the less widespread and diverse, burrowing Hildebrandtia, and the little-known, burrowing, monotypic Lanzarana, endemic to Somalia. Previous morphological studies placed Lanzarana in a... -
Travelling together: exploring the impact of support and service animals on travel experiences
Item type: Journal Article • Journal: Research in Hospitality Management • Authors: Marianna Moraes --- University of California, USAThe phenomenon of multi-species families is increasingly linked to the growing awareness of the benefits of emotional support and service animals. As more people adopt various animals into their homes, it becomes crucial to understand how these family arrangements influence... -
A review of the reported and future potential ecological impacts of the invasive freshwater snail Tarebia granifera in South Africa.
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JJ Pearson --- North-West University, South Africa R Gerber --- North-West University, South Africa W Malherbe --- North-West University, South Africa NJ Smit --- North-West University, South Africa L de Necker --- North-West University, South AfricaThe Southeast Asian gastropod Tarebia granifera is an invasive freshwater snail across several continents. Our review summarises the impacts of this invasive snail on invaded aquatic ecosystems. The most important impacts are those related to their ability to reproduce quickly... -
Nest-site selection by Hooded Vultures Necrosyrtes monachus in the Sudano–Sahelian area of Burkina Faso
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Clément Daboné --- University Centre of Tenkodogo, Thomas Sankara University, Burkina Faso Lindy J Thompson --- , South Africa Adama Ouéda --- University Joseph Ki-Zerbo, Burkina Faso Idrissa Ouédraogo --- University Joseph Ki-Zerbo, Burkina Faso Peter DM Weesie --- University of Groningen, The NetherlandsUnderstanding the factors influencing selection of nesting habitat may be important in the placement and management of Vulture Safe Zones (areas where vultures can safely breed) and in the development of successful conservation programmes. In this study, we analysed the... -
Impact of climate change on the distribution of the invasive water hyacinth in Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Abdulbasit Hussein --- School of Natural Resources Management and Environmental Sciences, College of Agriculture and Environmental Sciences, Haramaya University, Ethiopia Solomon Estifanos --- School of Natural Resources Management and Environmental Sciences, College of Agriculture and Environmental Sciences, Haramaya University, Ethiopia Tolesa Negese --- School of Natural Resources Management and Environmental Sciences, College of Agriculture and Environmental Sciences, Haramaya University, EthiopiaThe introduction of exotic species poses one of the greatest threats to biodiversity globally. Water hyacinth is a dangerous invasive species that has harmed Ethiopia’s wetland ecology and economy. This research aims to evaluate the current distribution of water hyacinth... -
Strengthening the DNA barcode reference library for marine copepods in South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: A Rawoot --- University of the Western Cape, South Africa A Govender --- Oceanographic Research Institute (ORI), South Africa JC Groeneveld --- Oceanographic Research Institute (ORI), South Africa S Willows-Munro --- University of KwaZulu-Natal, South Africa R Cedras --- , South AfricaDNA barcode reference libraries that link taxonomically verified species records to standardised barcode sequences form the basis for species identification using molecular methods. We conducted an integrated morphology and molecular study of marine copepods collected from the continental shelf of... -
First report of the giant conifer aphid, Cinara pinivora (Wilson) and the Monterey pine aphid, Essigella californica (Essig) (Hemiptera: Aphididae) in South Africa
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Privilege T Makunde --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Bernard Slippers --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Brett P Hurley --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South AfricaPine aphids represent a significant group of insect pests in coniferous ecosystems worldwide. To assess pine aphid prevalence and potentially new introductions in South Africa, aphid samples from various pine-growing regions were collected through national surveys conducted by the Tree... -
Colonisation patterns and reef growth of the invasive serpulid Ficopomatus enigmaticus in a Greek coastal lagoon
Item type: Journal Article • Journal: African Zoology • Authors: Athanasia-Violeta Ntzoumani --- University of Patras, Greece Sarah Faulwetter --- University of Patras, Greece Konstantinos G Nikolakopoulos --- University of Patras, Greece Pavlos Avramidis --- University of Patras, Greece Alexis Ramfos --- University of Patras, GreeceThe reef-building serpulid polychaete Ficopomatus enigmaticus is an invasive species in brackish waters in tropical and temperate zones worldwide and often has massive impacts on ecosystems and anthropogenic activities. In Prokopos Lagoon in Greece, the species has constructed large reefs... -
Lumbrineris magalhaensis Kinberg, 1865 (Annelida: Lumbrineridae) revealed as two indigenous species in South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Adri van Niekerk --- Stellenbosch University, South Africa Jyothi Kara --- Iziko South African Museum, South Africa Arturo Alvarez-Aguilar --- Stellenbosch University, South Africa Carol A Simon --- Stellenbosch University, South AfricaLumbrineris magalhaensis Kinberg, 1865 (Annelida: Lumbrineridae) is a marine polychaete worm that was first described from the Magellan Strait, Chile; thereafter it was also reported in sub-Antarctic, temperate and tropical regions, where it was likely misidentified. In South African waters,... -
Effects of eucalypt and black wattle biochars from vacuum pyrolysis on sandy soil quality and cauliflower yield
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S Mncedi --- Stellenbosch University, South Africa JF Görgens --- Stellenbosch University, South Africa PA Swanepoel --- Stellenbosch University, South Africa AG Hardie --- Stellenbosch University, South AfricaWoody invasive alien plants (IAPs), including black wattle (Acacia mearnsii De Wild.) and eucalypt species (Eucalyptus camaldulensis Dehnh.), present significant environmental challenges in South Africa. Biochar from these plants can enhance soil carbon sequestration and fertility. This study examines the... -
The grazer Cymbula oculus (Patellogastropoda: Patellidae) serves as an important settlement substrate for several of its macroalgal prey
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: W Moosa --- University of the Western Cape, South Africa J Phillips --- University of the Western Cape, South Africa GW Maneveldt --- University of the Western Cape, South AfricaIntertidal communities are predictably affected by both physical and biological factors, with herbivory as a particularly important factor. Instead of dense beds of macroalgae, which typically characterise the mid-eulittoral zone along the south coast of South Africa, at Kalk Bay... -
The bio-invasion and population dynamics of Cherax quadricarinatus in Zambian waters
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Eva Nambeye --- University of Zambia, Zambia Chibwe Katapa --- University of Zambia, Zambia Bernadette Chimai Mulenga --- University of Zambia, Zambia Hangoma Gordon Mudenda --- University of Zambia, Zambia Marjatta Eilitta --- , United States Michael A Rice --- University of Rhode Island, United StatesSince the 1990s, the exotic Australian redclaw crayfish, Cherax quadricarinatus, has been spreading in the Zambezi River basin in Zambia. The population structure of crayfish was determined at locations along the north shore of Lake Kariba 'near Siavonga' and the... -
Camera trapping observations of the Kloof Frog, Natalobatrachus bonebergi, in South Africa, reveals effects of environmental conditions on breeding behaviour patterns
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: C Acker-Cooper --- Endangered Wildlife Trust, South Africa L Roxburgh --- Endangered Wildlife Trust, South Africa J Tarrant --- Endangered Wildlife Trust, South AfricaThe threatened Kloof Frog (Natalobatrachus bonebergi) is associated with coastal forested rocky streams in the KwaZulu-Natal and Eastern Cape provinces, South Africa. Their expanded toe tips allow them to navigate rocks, branches and leaves, where the species lays distinct egg... -
Antagonistic aria: vocalisations of the male slender feather-tailed leaf-toed gecko (Gekkonidae: Kolekanos plumicaudus)
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Francois S Becker --- National Museum of Namibia, Ministry of Education, Arts and Culture, Namibia Pedro Vaz Pinto --- CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, Universidade do Porto, Portugal Javier Lobón-Rovira --- CIBIO-InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, Laboratório Associado, Universidade do Porto, PortugalKolekanos plumicaudus is a gecko endemic to the Namib Desert in south-western Angola. It is distantly related to all other geckos in the region, except for its one congener, K. spinicaudus. There have been no scientific accounts on the social... -
New records of Fox’s Weaver Ploceus spekeoides significantly disrupt perceptions concerning its conservation status
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Jonathan Onongo --- , Uganda Achilles Byaruhanga --- , Uganda Dianah W Nalwanga --- , Uganda Micheal Kibuule --- , Uganda Nigel J Collar --- , United Kingdom Simon Valle --- , United StatesIUCN Red List categorisation helps prioritise species conservation efforts. Fox’s Weaver Ploceus spekeoides is a little-known passerine endemic to eastern Uganda and categorised as Near Threatened. Historical records (1913–1996) of this bird span nine sub-counties in the country, but more... -
Predation of free-range chickens by invasive House Crows Corvus splendens in Dodoma, Tanzania
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Kelvin Ngongolo --- University of Dodoma, Tanzania Naza Mmbaga --- University of Dodoma, Tanzania Doreen Mrimi --- University of Dodoma, TanzaniaThis study reports on the perspectives of local farmers on predation on chickens by the invasive House Crow Corvus splendens, together with their coping strategies, in Dodoma, Tanzania. A survey was conducted among 391 farmers of free-range chickens in urban... -
Mapping suitable habitat for Hooded Vultures Necrosyrtes monachus in one of the last West African strongholds for the species, The Gambia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Michael Bode Agunbiade --- Brandenburg University of Technology Cottbus-Sefftenberg, Germany Jallow Mawdo --- Abuko Nature Reserve Headquarters, The Gambia Fagimba Camara --- West African Bird Study Association, Abuko Nature Reserve Headquarters, The Gambia Chefor Fotang --- Brandenburg University of Technology Cottbus-Sefftenberg, Germany Elvis Tangwa --- Palacky University (UP), Czech Republic Olayinka Amos Oladosu --- Brandenburg University of Technology Cottbus-Sefftenberg, Germany Luc Roscelin Dongmo Tédonzong --- Centre for Research and Conservation (CRC), Royal Zoological Society of Antwerp (RZSA), Belgium Yisa Ginath Yuh --- Planning and Environment, University of Concordia, Canada Darcy Ogada --- The Peregrine Fund, United States Klaus Birkhofer --- Brandenburg University of Technology Cottbus-Sefftenberg, GermanyHooded Vultures Necrosyrtes monachus are Critically Endangered, with numbers decreasing due to illegal poisoning, hunting for belief-based use and food, and habitat loss. In The Gambia, human activities currently benefit commensalism between humans and Hooded Vultures, as these birds primarily... -
Spillover effects of tree-planting programmes on household tree planting for fuelwood and livelihoods in non-urban areas of Tanzania
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Yusuph John Kulindwa --- Moshi Co-operative University, TanzaniaA spillover effect of tree planting programmes (TPs) and of the independent planting of trees for fuelwood by forest-dependent households is that deforested areas in developing countries have not been restored due to the high demand for fuelwood, which outstrips... -
Effects of forest cover and fragmentation on bird functional guilds in understorey birds in shade coffee habitats of southwest Ethiopia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Gelaye Gebremichael --- College of Natural Sciences, Jimma University, Ethiopia Anagaw Atickem --- Colleges of Natural Sciences, Addis Ababa University, Ethiopia Seid Tiku Mereta --- Jimma University, Ethiopia Luc Lens --- Ghent University, BelgiumHabitat loss and fragmentation, as consequences of anthropogenic land use changes, are the main drivers of global biodiversity loss. In this study, we evaluate the response of functional guilds in forest understorey bird communities to the amount of forest cover... -
First record of the pandemic fungus Batrachochytrium dendrobatidis in wild amphibians of the Mauritius Island
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Albert Martínez-Silvestre --- , Spain Owen Griffiths --- La Vanille Nature Park, Ile Maurice Gilbert Moutia --- La Vanille Nature Park, Ile Maurice Barbora Thumsová --- Asociación Herpetológica Española (AHE), Spain Jaime Bosch --- IMIB-Research Unit of Biodiversity (University of Oviedo, CSIC, Principality of Asturias), SpainMauritius hosts two established non-native amphibian species: the Mascarene Grass Frog (Ptychadena mascareniensis) and the Guttural Toad (Sclerophrys gutturalis). In this study, we screened individuals of both species for the presence of Batrachochytrium dendrobatidis (Bd), Batrachochytrium salamandrivorans (Bsal), and Ranavirus... -
Distribution and status of reptile species in south-eastern Zimbabwe
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Kurt M van Wyk --- University of the Western Cape, South Africa Bryan Maritz --- University of the Western Cape, South Africa Bruce W Clegg --- Malilangwe Trust, Malilangwe Wildlife Reserve, ZimbabweWhile the loss of biodiversity in response to anthropogenic drivers is well documented, reptiles are rarely prioritised in global conservation efforts. Although more than 20% of all reptile species are currently listed as threatened, and a growing body of evidence... -
The amphibians and reptiles of Ngel Nyaki Forest Reserve on the Mambilla Plateau of eastern Nigeria
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Denise Arroyo-Lambaer --- Instituto de Biología, Universidad Nacional Autónoma de México, México Lauren A Scheinberg --- , USA Jens V Vindum --- , USA Walter P Tapondjou --- University of Florida, USA Morgan G Davidson --- University of Florida, USA Hazel Chapman --- University of Canterbury, New Zealand David C Blackburn --- , USAThe herpetofauna of the montane forests of Taraba State in eastern Nigeria is poorly known. During the twentieth century, two short surveys of amphibian and reptile diversity were conducted on the Mambilla Plateau, but these did not generate a comprehensive... -
Effects of diamond mining on sandy beaches in southern Namibia – the use of Tylos granulatus (Isopoda: Oniscidea) as an indicator species
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Hutchings --- , South Africa A Rees --- , South Africa A Pulfrich --- , South Africa BM Clark --- , South AfricaSandy beaches provide vital ecosystem services and support diverse ecological communities but are increasingly threatened by anthropogenic pressures. In particular, intertidal mining disrupts sandy beaches and challenges their resilience, yet these ecosystems retain some capacity for environmental recovery. This study... -
Comparison of light trap designs for assessments of positively phototactic invertebrate and larval assemblages in urbanised coastal systems
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NP Mpanza --- South African Institute for Aquatic Biodiversity (SAIAB), South Africa P Pattrick --- South African Environmental Observation Network (SAEON), Elwandle Coastal Node, South Africa F Porri --- South African Institute for Aquatic Biodiversity (SAIAB), South AfricaThe construction of seawalls is increasing the extent of artificial infrastructure along coastlines globally. Such development compromises substrate complexity of the natural environment which is crucial for major life functions of larvae (invertebrates and fish). Understanding the physical and biological... -
Southern African python (Python natalensis) diet, using information gathered from social media and historical data
Item type: Journal Article • Journal: African Zoology • Authors: Kirsty J Kyle --- University of KwaZulu-Natal, South Africa Colleen T Downs --- University of KwaZulu-Natal, South AfricaAfrican pythons are the largest and among the most charismatic species of snake on the continent. Surprisingly little is known about the details of their diets. This may be due to the difficulty of compiling a list of prey items... -
Pleistocene Hamerkop Scopus umbretta (Scopidae) tracks and other new avian ichnosites on South Africa’s Cape south coast
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Charles W Helm --- Nelson Mandela University, South Africa Given Banda --- Nelson Mandela University, South Africa Andrew S Carr --- University of Leicester, United Kingdom Hayley C Cawthra --- Nelson Mandela University, South Africa Jan C de Vynck --- Nelson Mandela University, South Africa Mark G Dixon --- Nelson Mandela University, South Africa Alex van den Heever --- Magazine Hill, South AfricaEight Pleistocene avian ichnosites have been identified in aeolianites on South Africa’s Cape south coast, adding to the 41 sites previously identified. All the newly identified sites are thought to fall within the age range of marine isotope stages (MIS)... -
Invasion of Neltuma juliflora (mesquite) and its effects on soil physicochemical properties in a semi-arid rangeland of South Africa
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Siviwe Odwa Malongweni --- Sol Plaatje University, South AfricaInvasive species threaten ecosystem functions in African rangelands by altering soil properties, and affecting overall health and productivity. This study compared soil physicochemical characteristics under invasive Neltuma juliflora and native Vachellia karroo across two zones (beneath tree canopy versus open... -
First report of Melanterius inconspicuus (Coleoptera: Curculionidae: Cleogonini) from KwaZulu-Natal, South Africa, with observations of its development in black wattle
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Wilma J Nel --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Irene Barnes --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Sandisiwe Jali --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South Africa Fiona Impson --- University of Cape Town, Department of Biological Sciences, South Africa Rolf G Oberprieler --- Australian National Insect Collection, Australia Brett P Hurley --- Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, South AfricaMelanterius is a large genus of small weevils that primarily feed on the seeds of Acacia species occurring in their native range in Australia. In the latter part of the 20th century, five seed-feeding Melanterius species were released against several... -
Sand knobwood Zanthoxylum leprieurii as a keystone resource for birds in Nigeria: insights from observational counts and proximate analysis
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adewale G Awoyemi --- Forest Center, International Institute of Tropical Agriculture, Nigeria Ademola D Ajayi --- Forest Center, International Institute of Tropical Agriculture, Nigeria Olukunle E Olasupo --- Forest Center, International Institute of Tropical Agriculture, Nigeria Olufemi P Olubodun --- Forest Center, International Institute of Tropical Agriculture, Nigeria Taiwo Adams --- Forest Center, International Institute of Tropical Agriculture, Nigeria Mary Oyegbami --- Forest Center, International Institute of Tropical Agriculture, Nigeria Omobamidele A Awoyemi --- Forest Center, International Institute of Tropical Agriculture, NigeriaThis study investigated the importance of sand knobwood Zanthoxylum leprieurii (family Rutaceae) fruits as a food source for birds in the Tree Heritage Park, Ibadan, Nigeria. We conducted focal observations over three years (2018, 2019, and 2024) during peak fruiting... -
Cape Gannet Morus capensis year-round presence off the southern Cape coast of South Africa
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Zanri Strydom --- , South Africa Tiaan Strydom --- , South AfricaThe year-round presence and abundance of Cape Gannets Morus capensis in the greater Wilderness waters (Western Cape, South Africa) were monitored through a land-based observational study, 330 km (straight-line distance) from the nearest breeding colony, Bird Island Algoa Bay. Between... -
Bird community composition across a land use gradient in the eastern Democratic Republic of Congo
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Regine C Tabe Tiku --- Konrad Lorenz Institute of Ethology, University of Veterinary Medicine, Austria Samuel EI Jones --- Department of Biological Sciences, University of Cyprus, Cyprus Malange NF Elikwo --- Department of Microbiology and Parasitology, University of Buea, Cameroon Kowo Cyril --- Department of Microbiology and Parasitology, University of Buea, Cameroon Steve Ngoy --- Centre de Suiveillance de la Biodiversite, Universite de Kisangani, Democratic Republic of the Congo Virginia Zaunbrecher --- Center for Tropical Research, University of California, United States Ravinder NM Sehgal --- Department of Biology, San Francisco State University, United StatesCocoa agroforestry expansion is widespread in eastern Democratic Republic of Congo, posing a significant threat to the integrity of protected areas. Despite this threat, the impact of this expansion on forest bird communities remains largely unexamined. This study investigated bird... -
Physico-chemical variables influencing the distribution and abundance of macroinvertebrates in salt marsh habitats of the Berg River Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: NT Mngomezulu --- Department of Plant Sciences, University of the Free State, South Africa N Peer --- Department of Botany and Zoology, Stellenbosch University, South Africa A Rajkaran --- Department of Biodiversity and Conservation Biology, University of the Western Cape, South Africa DA Veldkornet --- Department of Plant Sciences, University of the Free State, South AfricaMacroinvertebrates such as snails and crabs influence aspects of salt marsh structure and function through herbivory and bioturbation. However, the effects of physico-chemical variables and habitat composition on their abundance and distribution remain underexplored. This study examined the influence of... -
Interactions between Red-billed Oxpeckers (Buphagus erythrorhynchus) and hippopotamus (Hippopotamus amphibius) in the Salambala Conservancy, Namibia
Item type: Journal Article • Journal: African Zoology • Authors: Michael S Lukubwe --- Department of Zoology and Entomology, Rhodes University, South Africa Adrian JFK Craig --- Department of Zoology and Entomology, Rhodes University, South Africa Charles Byaruhanga --- Department of Veterinary Tropical Diseases, University of Pretoria, South AfricaOxpeckers (Buphagus spp.) play dual roles as mutualists and parasites of large mammals, primarily engaging in ectoparasite removal, with occasional instances of wound feeding. However, studies on their interactions with semi-aquatic species, such as hippopotamus (Hippopotamus amphibius, hereafter hippos), remain...