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Estimation of grazing by herbivores from analysis of dung
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: L V Mabinya J M Brand J G Raats W S W TrollopeTwo phenolic acids, p-coumaric and ferulic acid, can be liberated from grass material by mild alkaline hydrolysis and resolved by thin layer chromatography (TLC). The two acids can also be recovered from the dung of various herbivores and their presence... -
A PCR-based method for sex identification in Hippopotamus amphibius
Item type: Journal Article • Journal: African Zoology • Authors: Richard Beckwitt --- Department of Biology, Framingham State College, U.S.A. Jennifer Shea --- Department of Biology, Framingham State College, U.S.A. Deirdre Osborne --- Department of Biology, Framingham State College, U.S.A. Stephen Krueger --- The Toledo Zoo, U.S.A. William Barklow --- Department of Biology, Framingham State College, U.S.A.Identification of the sex of aquatic mammals such as the hippopotamus (Hippopotamus amphibius) is difficult in the field. We have developed a PCR-based method for sex identification in the hippopotamus. This method amplifies a short fragment of the ZFX and... -
Distribution and status of the hippopotamids in the Ivory Coast
Item type: Journal Article • Journal: African Zoology • Authors: Harald H. Roth --- , Zimbabwe Bernd Hoppe-Dominik --- , Germany Michael Mühlenberg --- v. Siebold Str. 2, Zentrum för Naturschutz der Universität Güttingen, Germany Bernd Steinhauer-Burkart --- , Germany Frauke Fischer --- , GermanyThe distribution and relative abundance of the common hippo (Hippopotamus amphibius) and the pygmy hippo (Hexaprotodon liberiensis) was studied in the Ivory Coast between 1978 and 1986 by questionnaire survey, interviews, local field investigations and aerial censuses. In addition, the... -
Additional morphological information on Oculotrema hippopotami Stunkard, 1924 (Monogenea: Polystomatidae) parasitic on the African hippopotamus
Item type: Journal Article • Journal: African Zoology • Authors: Louis H. du Preez --- School of Environmental Sciences and Development, South Africa Itumeleng A. Moeng --- Department of Zoology and Entomology, South AfricaOculotrema hippopotami Stunkard, 1924, is the only monogenean known from a homoiotherm host, namely the African hippopotamus (Hippopotamus amphibius Linnaeus, 1758). The original description was based on five shrunken, unflattened specimens. Initially O. hippopotami was not widely accepted as a... -
Mitochondrial DNA sequence variation in Hippopotamus amphibius from Kruger National Park, Republic of South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Richard Beckwitt --- Department of Biology, USA Jessica Barbagallo --- Department of Biology, USA Nickolas Breen --- Department of Biology, USA Julia Hettinger --- Department of Biology, USA Angelo Liquori --- Department of Biology, USA Cesar Sanchez --- Department of Biology, USA Nathalia Vieira --- Department of Biology, USA William Barklow --- Department of Biology, USAPopulations of Hippopotamus amphibius have declined throughout Africa in recent years, and are expected to decline further. An understanding of the population genetics of individual populations of hippos is necessary for effective management. To that end, we sequenced a portion...