Articles by Keyword: Microclimate

Search results for Microclimate

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  1. Open-top chambers to study air pollution impacts in South Africa. Part I: microclimate in open-top chambers

    Open-top chambers to study air pollution impacts in South Africa. Part I: microclimate in open-top chambers

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    South Africa's large industrial growth has created an obvious need to extend, improve and evaluate air pollution impacts on plants in order to assess present-day and future impacts of air pollutants on crop yields. In order to provide guidelines for...
  2. Bushclump-grass interactions: influence of bushclumps on their local environment in a south-east African savanna

    Bushclump-grass interactions: influence of bushclumps on their local environment in a south-east African savanna

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    The interaction between multi-species bushclumps and the herbaceous layer was investigated in a mesic Eastern Cape bushclump savanna. Bushclumps had a moderating effect on their microclimate when compared with the open grassland: lower maximum and higher minimum temperatures. higher humidity...
  3. Ground cavity nest temperatures and their relevance to Blue Swallow <em>Hirundo atrocaerulea</em> conservation

    Ground cavity nest temperatures and their relevance to Blue Swallow <em>Hirundo atrocaerulea</em> conservation

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Blue Swallows Hirundo atrocaerulea are Critically Endangered within South Africa. They nest in natural underground holes in mist-belt grasslands. Temperature dataloggers were used to record ground cavity nest (Tn) and ambient temperature (Ta) for one artificial and 11 natural Blue...
  4. Microclimate conditions in ventilated wet-walled greenhouses in a subtropical climate: spatial variability

    Microclimate conditions in ventilated wet-walled greenhouses in a subtropical climate: spatial variability

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Spatial variations of microclimatic conditions in enclosed north–south (N–S) oriented single-arched greenhouse polycarbonate structures, with a wet-wall providing evaporative cooling at the S end, were investigated and displayed online in near real-time. Temperature-controlled fans at the N end extracted air...
  5. Can behaviour buffer the impacts of climate change on an arid-zone bird?

    Can behaviour buffer the impacts of climate change on an arid-zone bird?

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Behavioural thermoregulation, particularly the use of cool microclimates, is one method by which organisms could avoid the worst effects of climate warming. However, retreat into cool microsites, e.g. shady vegetation or burrows, may carry important lost-opportunity costs. These could include...
  6. Elevated temperatures drive fine-scale patterns of habitat use in a savanna bird community

    Elevated temperatures drive fine-scale patterns of habitat use in a savanna bird community

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Many animals use thermally buffered microhabitats, e.g. patches of shade within trees, to avoid temperature extremes. These ‘thermal refugia’ may mediate the impact of climate change on animals. Predicting how species and communities will respond to rising temperatures therefore requires...
  7. Results from four <em>Pinus patula</em> water planting trials in the summer rainfall region of South Africa

    Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal
    Planting with water is used by some forestry companies in South Africa to reduce post-planting water stress. Four trials were implemented to test the response in survival of Pinus patula to water applied at planting. Two trials each were situated...