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Euphausiid population structure and grazing in the Antarctic Polar Frontal Zone — austral autumn 2004
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: ATF Bernard PW FronemanThe euphausiid community structure and grazing dynamics were investigated in the West Indian sector of the Polar Frontal Zone during the austral autumn 2004. Subsurface (200m) temperature profiles indicated that an intense frontal feature, formed by the convergence of the... -
Coeliac disease
Item type: Journal Article • Journal: South African Family Practice • Authors: J Badenhorst --- Department of Internal Medicine,Coeliac disease is an autoimmune enteropathy triggered by the ingestion of gluten-containing cereals, such as wheat, rye and barley. It is estimated to occur in one per cent of people of European ancestry, and in 0.3% of black Africans. Coeliac... -
Role of Brycinus lateralis (Teleostei: Alestidae) in dispersal and germination of Nymphaea nouchali (Angiospermae: Nymphaeaceae) seeds on a seasonal floodplain of the Okavango Delta, Botswana
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: M Mmusi --- Okavango Research Institute, Botswana K Mosepele --- Okavango Research Institute, Botswana M Murray-Hudson --- Okavango Research Institute, Botswana D Teketay --- Department of Crop Science and Production, Botswana M Horn --- Department of Biological Science, USASeed passage through the gut of vertebrates can be important for seed dispersal, but might influence seed viability. The ability of seeds to germinate after ingestion by seed-eating fish is important for the population dynamics of some plant species, and... -
More than eating dirt: a review of avian geophagy
Item type: Journal Article • Journal: African Zoology • Authors: Colleen T Downs --- School of Life Sciences, South Africa Ian P Bredin --- School of Life Sciences, South Africa Peter D Wragg --- School of Life Sciences, South AfricaGeophagy, the ingestion of earth varying in particle size from stones to soils rich in clay, is a relatively widespread behaviour across avian taxa. We reviewed its occurrence in birds and its hypothesised adaptive functions in birds. Of the ∼30...