Articles by Author: Charlie M Shackleton

Search results for Charlie M Shackleton

We found 22 results for you
  1. Changes in forest cover and carbon stocks of the coastal scarp forests of the Wild Coast, South Africa

    Changes in forest cover and carbon stocks of the coastal scarp forests of the Wild Coast, South Africa

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Land-use intensification and declines in vegetative cover are considered pervasive threats to forests and biodiversity globally. The small extent and high biodiversity of indigenous forests in South Africa make them particularly important. Yet, relatively little is known about their rates...
  2. Seasonal changes in biomass concentration in three coastal grassland communities in Transkei

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The density of forage available to wild ungulates was measured in terms of biomass concentration. Data were collected in three grassland communities for several months. In two of the communities burning and grazing treatments were also applied. The biomass concentration...
  3. Seasonal changes in above‐ground standing crop in three coastal grassland communities in Transkei<sup>1</sup>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Above‐ground standing crop (ASC) dynamics were followed over a two‐year period in three coastal grassland communities. The mass of biomass, necromass and litter components was determined monthly from hand‐clipped samples and compared under three management treatments — grazing, burning and...
  4. Response of <em>Cymbopogon validus</em> tillers to three clipping frequencies

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The response of tagged Cymbopogon validus tillers to three clipping frequencies indicated that this species is intolerant of severe and frequent defoliation. This could account for its decreased abundance in heavily‐grazed areas in and around Mkambati Game Reserve, Transkei.
  5. Autecological studies on grass species in southern Africa — A literature survey

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    A literature survey of autecological studies on southern African grass species was undertaken. Results revealed that there is a comparative lack of autecological versus community studies. Where autecological studies have been conducted, most of the attention was focused on ‘pasture’...
  6. Seasonal changes in nutrient content under three defoliation treatments in two coastal grassland communities of Transkei

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Changes in nutrient concentrations were monitored over a two‐year period in two coastal grassland communities. Dry matter digestibility, crude protein, phosphorus, potassium, calcium and magnesium were determined from hand‐clipped samples of experimental treatments; namely, burning with and without subsequent grazing...
  7. Prospects for producing more pulp fibre per hectare in South Africa

    Prospects for producing more pulp fibre per hectare in South Africa

    Item type: Journal Article • Journal: The Southern African Forestry Journal
    There is considerable scope for more efficient use of resources (including water) in the South African pulp and paper industry through manipulation of the raw material.
  8. A comparative study of fossil fish scales from three upwelling regions

    A comparative study of fossil fish scales from three upwelling regions

    Item type: Journal Article • Journal: South African Journal of Marine Science
    In anoxic conditions, fish scales accumulate in the sediment undisturbed by benthic burrowing organisms and unaffected by aerobic bacterial decomposition. Other workers have studied the accumulation of scales in sediment off California and Peru to give insight into past fish...