Articles by Author: Doreen Atkinson

Search results for Doreen Atkinson

We found 11 results for you
  1. Municipal commonage in South Africa: a critique of artificial dichotomies in policy debates on agriculture

    Municipal commonage in South Africa: a critique of artificial dichotomies in policy debates on agriculture

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The paper critiques Vetter's (in this issue) assertion that commercialisation of smallholder agriculture holds dangers for sustainable rangeland management. The paper argues that a range of policy options are required, including commercialisation and subsistence farming, large-scale and smallholder farming, a...
  2. Response of <em>Eucalyptus</em> to Aldicarb in Coastal Sandy Soils in Natal, South Africa

    Item type: Journal Article • Journal: South African Forestry Journal
    The planting of Eucalyptus on aeolian; recent sands of the Natal coast has raised the question of whether nematicides are as necessary to counter patchy, unthrifty growth, as they are for sugarcane. The heights of eucalypts were mea sured at...
  3. Diet of the West Coast rock lobster <em>Jasus lalandii</em>: influence of lobster size, sex, capture depth, latitude and moult stage

    Diet of the West Coast rock lobster <em>Jasus lalandii</em>: influence of lobster size, sex, capture depth, latitude and moult stage

    Item type: Journal Article • Journal: South African Journal of Marine Science
    Diets of male and female West Coast rock lobster Jasus lalandii in South Africa were compared across a large size range of 10–85 mm carapace length (CL). The diets of male rock lobsters were compared between two different depths, different...
  4. 8. SHORT NOTES

    8. SHORT NOTES

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  5. Effects of crop diversity on bird species richness and abundance in a highland East African agricultural landscape

    Effects of crop diversity on bird species richness and abundance in a highland East African agricultural landscape

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    We examined the effects of crop diversity on avian species richness and abundance in the highland farmlands of Nyandarua, Kenya. We surveyed birds using point counts and recorded habitat data at the same locations estimating cover and growth stage of...
  6. Longshore Movements of Adult Male <em>Jasus Lalandii</em>: Evidence from Long-term Tag Recaptures

    Longshore Movements of Adult Male <em>Jasus Lalandii</em>: Evidence from Long-term Tag Recaptures

    Item type: Journal Article • Journal: African Journal of Marine Science
    Large-scale longshore movements (>10 km) of adult male Jasus lalandii (>70 mm carapace length) were examined on the west coast of South Africa using tag-recapture information from the period 1968 to 2000. The average rate of recovery of tagged rock...
  7. The potential for using acoustic tracking to monitor the movement of the West Coast rock lobster <em>Jasus lalandii</em>

    The potential for using acoustic tracking to monitor the movement of the West Coast rock lobster <em>Jasus lalandii</em>

    Item type: Journal Article • Journal: African Journal of Marine Science
    Although acoustic tracking has been used to study the movement of several species of clawed and spiny lobsters, only recent technological advances have provided sufficiently small transmitters to examine the utility of using acoustic tracking as a means to analyse...
  8. Changes in demersal fish assemblages on the west coast of South Africa, 1986–2009

    Changes in demersal fish assemblages on the west coast of South Africa, 1986–2009

    Item type: Journal Article • Journal: African Journal of Marine Science
    Research survey data collected over 24 years (1986–2009) were used to explore long-term changes in demersal fish assemblages on the west coast of South Africa. Differences in spatial (latitude and depth) and temporal (seasonal and annual) factors were examined using...