Articles by Keyword: Foraging Ecology

Search results for Foraging Ecology

We found 126 results for you
  1. The rate of consumption of bush and grass by goats in a representative <em>acacia karroo</em> savanna community in the Eastern Cape

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Consumption of browse and grass in a representative Acacia karroo savanna community was measured. Acacia karroo was preferred to grass. It was selected almost exclusively when available at high leaf densities. Grass was consumed in significant amounts only when approximately...
  2. The relation between herbivore density and relative resource density at the landscape level: Kudu in semi‐arid savanna

    The relation between herbivore density and relative resource density at the landscape level: Kudu in semi‐arid savanna

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Ecological theory can help range scientists to understand the determinants of ecological animal density or, in range management terms, ‘carrying capacity’. The relation between the relative density of resources and herbivore density is illustrated by regressions of the ecological density...
  3. Biomass production and water use efficiency of grassland in KwaZulu-Natal, South Africa

    Biomass production and water use efficiency of grassland in KwaZulu-Natal, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Using the results from a long-term grazing trial in the Dry Highland Sourveld of the KwaZulu-Natal province, we prepared a water use efficiency value (the ratio of the increment in annual biomass to total annual evapotranspiration) for this rangeland type...
  4. Phenology of woody plants in riverine thicket and its impact on browse availability to game species

    Phenology of woody plants in riverine thicket and its impact on browse availability to game species

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The study area was located in the central Free State Grassland biome, but the vegetation partially represented riparian thicket. Leaf carriage patterns of deciduous species were determined from September 2004 to August 2008. Similarities existed between Acacia karroo and Diospyros...
  5. The Marine Mammal Programme at the Prince Edward Islands: 38 years of research

    The Marine Mammal Programme at the Prince Edward Islands: 38 years of research

    Item type: Journal Article • Journal: African Journal of Marine Science
    The Marine Mammal Programme (MMP) conducts research on pinnipeds and killer whales Orcinus orca at Marion Island, Prince Edward Islands, under the auspices of the Mammal Research Institute, Department of Zoology and Entomology, University of Pretoria. The history of the...
  6. Do inter-colony differences in Cape fur seal foraging behaviour reflect large-scale changes in the northern Benguela ecosystem?

    Do inter-colony differences in Cape fur seal foraging behaviour reflect large-scale changes in the northern Benguela ecosystem?

    Item type: Journal Article • Journal: African Journal of Marine Science
    The northern Benguela ecosystem adjoining Namibia has undergone considerable changes in recent decades, with reductions and northwards shifts of key prey species that have had severe implications for marine top predator populations. We investigated how such environmental variability may impact...
  7. Sustainable intensification of cultivated pastures using multiple herbivore species

    Sustainable intensification of cultivated pastures using multiple herbivore species

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Demand for animal products is growing faster than for any other agricultural product. As a result, pressure for greater output from cultivated pastures is expected to increase. Assuming cultivated pasture area will decrease with land degradation, conversion to grain crops...
  8. Foraging behaviour of two rodent species inhabiting a kopje (rocky outcrop) in Tsavo West National Park, Kenya

    Foraging behaviour of two rodent species inhabiting a kopje (rocky outcrop) in Tsavo West National Park, Kenya

    Item type: Journal Article • Journal: African Zoology
    We employed patch use theory to evaluate how several environmental factors influence the foraging behaviour of two rodent species: Grammomys dolichurus and Acomys cahirinus. Foraging efficiency was determined by measuring the remaining food in artificial food patches (giving-up densities: GUDs)...
  9. Aboveground biomass production of a semi-arid southern African savanna: towards a new model

    Aboveground biomass production of a semi-arid southern African savanna: towards a new model

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Following a field campaign to determine the species composition, canopy cover, aboveground annual production and leaf area index (LAI) of the semi-arid savanna of north-western Namibia, we present a production model that can be used by graziers to determine the...
  10. Intraspecific behavioural variation in the lacertid lizard <em>Meroles cuneirostris</em> (Strauch, 1867) (Sauria:Lacertidae)

    Intraspecific behavioural variation in the lacertid lizard <em>Meroles cuneirostris</em> (Strauch, 1867) (Sauria:Lacertidae)

    Item type: Journal Article • Journal: African Journal of Herpetology
    We characterised behavioural variation between adult male, adult female and juvenile Meroles cuneirostris, a diurnal lacertid lizard endemic to the Namib Desert. Variation in microhabitat preference was significant between age classes, as adults spent more time underneath vegetative cover than...