Articles by Keyword: Nama Karoo

Search results for Nama Karoo

We found 35 results for you
  1. Seasonal and daily activity patterns of leopard tortoises (<em>Stigmochelys pardalis</em> Bell, 1828) on farmland in the Nama-Karoo, South Africa

    Seasonal and daily activity patterns of leopard tortoises (<em>Stigmochelys pardalis</em> Bell, 1828) on farmland in the Nama-Karoo, South Africa

    Item type: Journal Article • Journal: African Zoology
    The leopard tortoise (Stigmochelys pardalis) is the largest of southern Africa’s 13 tortoise species, and occurs in a variety of habitats from arid and semi-arid areas to mesic grassveld, savanna and bushveld. Seasonal activity patterns of S. pardalis were investigated...
  2. Fire effects on vegetation in a grassy dwarf shrubland at a site in the eastern Karoo, South Africa

    Fire effects on vegetation in a grassy dwarf shrubland at a site in the eastern Karoo, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Fire is rare in semi-arid eastern Karoo dwarf shrublands, South Africa, and responses to fire are largely unknown. Recent increased grassiness, and hence fuel loads, at Grootfontein in the Eastern Cape allowed an accidental fire (24.3 ha) to carry, and...
  3. Effect of <em>Prosopis</em> (mesquite) invasion and clearing on vegetation cover in semi-arid Nama Karoo rangeland, South Africa

    Effect of <em>Prosopis</em> (mesquite) invasion and clearing on vegetation cover in semi-arid Nama Karoo rangeland, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The Nama-Karoo is the largest of the three biomes that comprise the semi-arid Karoo-Namib ecoregion of southern Africa. Large tracts of Nama-Karoo rangeland have been invaded by alien leguminous trees of the genus Prosopis. We assessed the impact of Prosopis...
  4. Impact of <em>Prosopis</em> (mesquite) invasion and clearing on vegetation species composition and diversity in semi-arid Nama-Karoo rangeland, South Africa

    Impact of <em>Prosopis</em> (mesquite) invasion and clearing on vegetation species composition and diversity in semi-arid Nama-Karoo rangeland, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The Nama-Karoo biome occupies 28% of South Africa’s land area. Alien leguminous trees of the genus Prosopis have invaded large tracts of Nama-Karoo rangeland. We evaluated the impact of Prosopis invasion and clearing on vegetation species composition and diversity (alien...
  5. Interactions of grazing and rainfall on vegetation at Grootfontein in the eastern Karoo<xref ref-type="fn" rid="FN0000"/>

    Interactions of grazing and rainfall on vegetation at Grootfontein in the eastern Karoo<xref ref-type="fn" rid="FN0000"/>

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Rainfall and grazing are primary drivers of vegetation composition in the Nama-Karoo. Increased rainfall increases grassiness, to where Nama-Karoo transitions to grassland. Severe grazing treatments (e.g. continuous or summer-only) increase abundance of grazing-tolerant dwarf shrubs and annual grasses, and decrease...
  6. Drivers and trajectories of social and ecological change in the Karoo, South Africa<xref ref-type="fn" rid="FN0000"/>

    Drivers and trajectories of social and ecological change in the Karoo, South Africa<xref ref-type="fn" rid="FN0000"/>

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    This review article explores past, present and possible future drivers of change in Karoo social-ecological systems. Biogeographically, the Karoo comprises the arid Succulent Karoo and Nama-Karoo biomes covering significant portions of the Northern Cape, Eastern Cape and Western Cape provinces...
  7. Before the Anthropocene: human pasts in Karoo landscapes<xref ref-type="fn" rid="FN0000"/>

    Before the Anthropocene: human pasts in Karoo landscapes<xref ref-type="fn" rid="FN0000"/>

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Karoo landscapes today are replete with evidence of recent human impacts. The Karoo is relatively pristine in the South African imaginary, but it is not untouched. Social and historic change in the last 300 years has been dramatic. The article...
  8. Introduction to the Karoo Special Issue: Trajectories of Change in the Anthropocene<xref ref-type="fn" rid="FN0000"/>

    Introduction to the Karoo Special Issue: Trajectories of Change in the Anthropocene<xref ref-type="fn" rid="FN0000"/>

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The Karoo is an arid to semi-arid area across the western third of South Africa, comprising the Succulent Karoo and Nama-Karoo biomes. Its environment and people have experienced considerable changes, and now face new challenges as the Anthropocene unfolds. This...
  9. Exploring the potential of the descending‐point method to measure utilization in karoo veld

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The descending‐point method of vegetation survey proved effective in measuring meaningful plant cover changes during a grazing period. No significant changes in basal cover or plant height were detected. Changes in canopy spread and canopy cover could only be used...
  10. Towards a plant‐based technique to measure utilization of karoo bushes

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The precision of various destructive techniques for estimating utilization of karoo bushes was investigated with the prerequisite that removal of 20 % of the edible material of individual species could be shown to be statistically significant. Where the total mass...