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NEW DISTRIBUTION RECORDS FOR CLARIAS THEODORAE WEBER 1897, BARBUS EUTAENIA BOULENGER 1904, BARBUS POLYLEPIS BOULENGER 1907 AND OPSARIDIUM ZAMBEZENSE (PETERS 1852) FROM THE WATERBERG, TRANSVAAL, SOUTH AFRICA.
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: C.J. Kleynhans --- , South Africa A. Hoffman --- , South AfricaNew distribution records for four fish species in the Waterberg mountains of the Transvaal were established during surveys since 1987–92. Clarias theodorae was previously reported from one locality each in the Waterberg and Soutpansberg. The current survey disclosed its presence... -
A preliminary assessment of the impact of alien rainbow trout (Oncorhynchus mykiss) on indigenous fishes of the upper Berg River, Western Cape Province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DJ Woodford ND ImpsonImpacts of alien rainbow trout (Oncorhynchus mykiss) on critically endangered Berg River redfin (Pseudobarbus burgi), Cape kurper (Sandelia capensis) and Cape galaxias (Galaxias zebratus) in the upper Berg River were investigated in terms of predation and spatial interactions. Trout stomach... -
Conservation biology and management of a critically endangered cyprinid, the Twee River redfin, Barbus erubescens (Teleostei: Cyprinidae), of the Cape Floristic Region, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: ND Impson MS Marriott IR Bills PH SkeltonThe Twee River redfin Barbus erubescens is a critically endangered small cyprinid endemic to the Twee River System, a subcatchment of the Olifants-Doring River System of South Africa. It is currently the most threatened freshwater fish in both the Cape... -
Conserving the fishes of the Twee River, Western Cape, South Africa: revisiting the issues
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: SM Marr LME Sutcliffe JA Day CL Griffiths PH SkeltonThe Twee River catchment contains two endemic fish species — the Twee River redfin and the Twee River galaxias — which are threatened by water abstraction, habitat degradation, and the presence of introduced fishes. Fyke nets were used to determine... -
New records of a threatened lion population (Panthera leo) in a West African national park
Item type: Journal Article • Journal: African Zoology • Authors: Francesco M. Angelici --- F.I.Z.V, Italy Massimiliano Di Vittorio --- Dipartimento di Scienze Ambientali e Biodiversità, Italy Fabio Petrozzi --- Dipartimento di Scienze Ecologiche e Biologiche, ItalyIn West Africa, the lion is currently characterised by small populations that are fragmented and often isolated from one another, with virtually no ecological connection. In addition, lion populations are generally declining. In recent reports, in Ghana the lion has... -
Grey Parrots Psittacus erithacus in Kampala, Uganda – are they becoming suburbanised?
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Immaculate-Odd Irumba --- Department of Biological Sciences, Uganda Derek Pomeroy --- Department of Biological Sciences, Uganda Michael Perrin --- Research Centre for African Parrot Conservation, School of Life Sciences, South AfricaThe globally Vulnerable Grey Parrot (Psittacus erithacus) has been seen in Kampala, Uganda’s capital city, in increasing numbers in recent years. This apparently new behaviour of a typically forest species is helped by the presence of many large trees, which... -
Status of globally threatened birds of Sapo National Park, Liberia
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Benedictus Freeman --- Biodiversity Institute, University of Kansas, USA Filibus Danjuma Dami --- AP Leventis Ornithological Research Institute, University of Jos, Nigeria Mary Molokwu-Odozi --- Fauna & Flora International, LiberiaSapo National Park was the first established and is the largest national park in Liberia and contains the secondlargest area of primary tropical rainforest in West Africa. However, little is known about the distribution, population density, and ecology of threatened... -
Distribution, ecology, and conservation of Philochortus zolii in Mauritania: implications for the long-term persistence of an endangered lizard
Item type: Journal Article • Journal: African Journal of Herpetology • Authors: Marisa Naia --- , Portugal Andack S Sow --- , Mauritania João Campos --- , Portugal Zeine El Abidine Sidatt --- , Mauritania José C Brito --- , PortugalPhilochortus zolii is a globally endangered lizard known only from five localities scattered across North Africa. The population is thought to be decreasing, but there are almost no data about this Sahara-Sahel endemic lizard. Recently, a sixth population was found... -
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... -
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... -
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... -
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... -
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...