Articles by Author: Leigh Winowiecki

Search results for Leigh Winowiecki

We found 14 results for you
  1. Improvement of spatial modelling of crop suitability using a new digital soil map of Tanzania

    Improvement of spatial modelling of crop suitability using a new digital soil map of Tanzania

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Climate change is projected to have widespread impacts on the climate suitability and geographical distribution of agricultural crops. Simulations were conducted on the suitability of common beans (Phaseolus vulgaris L.) in Tanzania under progressive climate change, taking into account a...
  2. Patterns of disclosure and antiretroviral treatment adherence in a South African mining workplace programme and implications for HIV prevention

    Patterns of disclosure and antiretroviral treatment adherence in a South African mining workplace programme and implications for HIV prevention

    Item type: Journal Article • Journal: African Journal of AIDS Research
    Social and psychological barriers to the disclosure of one's seropositive HIV status to significant others and poor adherence to taking medications pose significant challenges to the scaling-up of access to antiretroviral treatment (ART) in the workplace. Such barriers are predictive...
  3. Population estimates of three vulture species in Kruger National Park, South Africa

    Population estimates of three vulture species in Kruger National Park, South Africa

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Vultures are globally threatened, yet reliable population data on these birds are few, thus measuring their response to change is difficult. Kruger National Park (KNP) in South Africa is an important stronghold for many avian species, particularly vultures. In this...
  4. 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...
  5. Alternative approaches to Red-billed Quelea <em>Quelea quelea</em> management: mass-capture for food

    Alternative approaches to Red-billed Quelea <em>Quelea quelea</em> management: mass-capture for food

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Organophosphate pesticide spraying or the deployment of explosives as standard practices for controlling quelea breeding colonies or roosts that threaten small-grain crops in Africa have negative side-effects on non-target birds and on the environment. Mass-capture techniques were tested as an...
  6. The psychopharmacological management of eating disorders in children and adolescents

    The psychopharmacological management of eating disorders in children and adolescents

    Item type: Journal Article • Journal: Journal of Child & Adolescent Mental Health
    In this review we synthesised current literature on the psychopharmacological management of eating disorders (EDs) in children and adolescents (C&As). We focus specifically on anorexia nervosa (AN), bulimia nervosa (BN) and binge eating disorder (BED). The treatment of EDs is...
  7. Skrywer-leser-verhoudings: die rol van metadiskoers in tersiêre studiegidse

    Skrywer-leser-verhoudings: die rol van metadiskoers in tersiêre studiegidse

    Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies
    Die rol van studiegidse wat aan tersiêre instansies gebruik word, kan soveel meer inhou as om blote opsommings omtrent 'n betrokke module te voorsien. Dit kan byvoorbeeld ook aangewend word om inligting oor die vakgebied in geheel te voorsien, of...
  8. Current conservation status of the Blue Swallow <em>Hirundo atrocaerulea</em> Sundevall 1850 in Africa

    Current conservation status of the Blue Swallow <em>Hirundo atrocaerulea</em> Sundevall 1850 in Africa

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    The global Blue Swallow Hirundo atrocaerulea was classified as Vulnerable in 2010 on account of its small and rapidly declining population estimated at less than 1 500 pairs. We undertook this study to gain a better understanding of the current...
  9. Digestive efficiency of indigenous and invasive avian species fed fruit of invasive alien plants in South Africa

    Digestive efficiency of indigenous and invasive avian species fed fruit of invasive alien plants in South Africa

    Item type: Journal Article • Journal: African Zoology
    Many highly invasive plant species produce fleshy fruit that are consumed and dispersed by frugivorous birds. However, little is known about assimilation efficiency of invasive fruit by indigenous and invasive avian species. We investigated whether indigenous Knysna (Tauraco corythaix) and...