Articles by Author: M T Mentis

Search results for M T Mentis

We found 26 results for you
  1. Veld burning in giant's castle game reserve, natal Drakensberg

    Veld burning in giant's castle game reserve, natal Drakensberg

    A basic aim in the management of a wildlife reserve is to maintain ecological diversity. In the Giant's Castle Game Reserve the vegetation is largely composed of fire sub‐climax grasslands. Under the natural fire‐regime, before man influenced the system much,...
  2. Management goals for wildlife reserves in grassveld and bushveid

    Management goals for wildlife reserves in grassveld and bushveid

    In South Africa most wildlife reserves are managed. Unambiguously stated goals are required if management is to be successful. The primary biological purpose of a reserve is proposed to be to maintain storehouses of dynamic genetic material. To perpetuate this...
  3. Fire and faunal abundance and diversity in the natal Drakensberg

    Fire and faunal abundance and diversity in the natal Drakensberg

    In the Natal Drakensberg the abundance and diversity of francolins, small mammals and antelope were related to time elapsed since the last fire. Greatest abundance and diversity occurred up to 3 years after fire, and on areas rarely or never...
  4. Conserving rangeland resources <em>die bewaring van veldhulpbronne</em>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The aims of the paper are to (1) identify the properties of conservation, (2) explain its poor implementation, and (3) propose remedies.
  5. A revised method for assessing veld condition

    A revised method for assessing veld condition

    The modified quantitative climax method previously developed for assessing veld condition in the humid grasslands of Natal has been refined and expanded as data derived from its use have accumulated. As previously, basal cover and species composition are determined on...
  6. The precision of assessing components of the condition of moist tall grassveld

    The precision of assessing components of the condition of moist tall grassveld

    The precision of a rapid technique previously developed to assess veld condition in three grassveld types in Natal was investigated. Three plots were assessed four times on each of three occasions during a growing season. Because basal cover tends to...
  7. Stability, resilience and animal production in continuously grazed sour grassveld

    Stability, resilience and animal production in continuously grazed sour grassveld

    The Jones‐Sandland model, popularly used in southern Africa, may be criticised because it ignores firstly the long‐term effects of grazing intensity on the acceptability and productivity of pasture or veld, and secondly possible discontinuities in the animal performance — stocking...
  8. Evaluation of the wheel‐point and step‐point methods of veld condition assessment

    Evaluation of the wheel‐point and step‐point methods of veld condition assessment

    A number of aspects of a technique recently developed to assess the agro‐ecological condition of veld were evaluated by 4 independent observers. Measuring the veld composition score yielded relatively repeatable results with a’ 95% confidence limit of ±6,43 units for...
  9. Coevolution of African grasses and large herbivores

    Coevolution of African grasses and large herbivores

    African grasslands have developed under the impact of fire and grazing. There has been strong selection for grass plants to deter, escape and tolerate herbivory, and to escape and tolerate fire. It follows that the complete withdrawal of fire from...
  10. Towards objective veld condition assessment

    Towards objective veld condition assessment

    The derivation of explicit goals and the quantification of the degree of their attainment are essential for purposeful management. Present methods in regard to the grazing use of South African veld may be improved in objectivity, efficiency and generality by...