Articles by Author: Suzanne J Milton

Search results for Suzanne J Milton

We found 44 results for you
  1. Fluctuations in bird numbers on sewage treatment ponds in an arid environment, South Africa

    Fluctuations in bird numbers on sewage treatment ponds in an arid environment, South Africa

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Regular twice-monthly counts of birds associated with water at the Prince Albert sewage disposal facility recorded 69 species, of which 16 species (23.5%) were waterbirds (ducks, Red-knobbed Coot Fulica cristata and Little Grebe Tachybaptus ruficollis) and 21 species were shorebirds...
  2. 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...
  3. Vegetation dynamics after experimental fire disturbance in the arid Succulent Karoo, South Africa

    Vegetation dynamics after experimental fire disturbance in the arid Succulent Karoo, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Disturbance by fire in the Succulent Karoo is rare but fire events could increase as a result of an increase in grassiness (alien and indigenous species). This study assessed the effects of fire eight years after an experimentally induced burn...
  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. Ants (Formicidae) as food for birds in southern Africa: opportunism or survival?

    Ants (Formicidae) as food for birds in southern Africa: opportunism or survival?

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Ants (Hymenoptera: Formicidae) are eaten by a number of bird species in southern Africa. Our database contained 545 species (excluding waterbirds and raptors), of which 179 species have been observed feeding on ants, or had ants in their stomachs. Ants...
  6. Slow Recovery of Defoliated Seven-Weeks Fern <em>Rumohra adiantiformis</em> in Harkerville Forest

    Item type: Journal Article • Journal: South African Forestry Journal
    Five years is insufficient time for seven-weeks fern Rumohra adiantiformis, growing under natural conditions in the indigenous forests of the southern Cape, to recover from total or partial defoliation. The mean length of fronds in commercially picked R. adiantiformis populations...
  7. Estimated Woody Litterfall in Broadleaved, Evergreen Forest, Southern Cape, South Africa

    Item type: Journal Article • Journal: South African Forestry Journal
    A new line-transect technique for monitoring woody litterfall in forests is described. In indigenous, evergreen coastal forest at Harkerville, southern Cape, branches and trees which fell and accumulated across 50 m lengths of twine over a period of seven years,...
  8. Are Pine Plantations “Inhospitable Seas” around Remnant Native Habitat within South-western Cape Forestry Areas?

    Item type: Journal Article • Journal: South African Forestry Journal
    Some areas of forestry estates, including unplantable ones, may be zoned and managed for nature conservation. This paper is an analysis of the results of studies of plants, birds and small mammals at Jonkershoek, Stellenbosch, to determine whether pine plantations...
  9. Preferential utilization of pans by springbok <em>(Antidorcas marsupialis)</em>

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Forage utilization by springbok in pans and surrounding habitats was compared at one karroid shrubland site and two desert grassland sites and was found to be greater in pans than on adjacent plains and dunes. Springbok used pan areas for...
  10. Effects of rainfall, competition and grazing on flowering of <em>Osteospermum sinuatum</em> (Asteraceae) in arid Karoo rangeland

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The shrub Osteospermum sinuatum, an important fodder plant in Karoo rangelands, flowered after heavy rain in autumn, winter and spring. The number of flowers produced per bush was positively conelated with basal stem diameter and rainfall in the 12 weeks...