Articles by Author: Rowan O Martin

Search results for Rowan O Martin

We found 162 results for you
  1. Effects of Climate Change on Birds

    Effects of Climate Change on Birds

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    2010, Oxford University Press, Great Clarendon Street, Oxford OX2 6DP, UK
  2. Short Notes

    Short Notes

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  3. Research and conservation of the larger parrots of Africa and Madagascar: a review of knowledge gaps and opportunities

    Research and conservation of the larger parrots of Africa and Madagascar: a review of knowledge gaps and opportunities

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Parrot populations in Africa and Madagascar are declining and the need for conservation actions to address threats is increasingly recognised. Effective conservation requires a robust knowledge base on which decisions over appropriate actions can be made, yet at present there...
  4. 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...
  5. 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...
  6. Nest-site characteristics and aspects of the breeding biology of the endangered Timneh Parrot <em>Psittacus timneh</em> in Guinea-Bissau

    Nest-site characteristics and aspects of the breeding biology of the endangered Timneh Parrot <em>Psittacus timneh</em> in Guinea-Bissau

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Timneh Parrots Psittacus timneh are endemic to the moist forests of West Africa. Concerns over rapid declines in populations due to overharvesting for the pet trade and forest loss prompted the species’ categorisation as Endangered on the IUCN Red List...
  7. The wild bird trade and African parrots: past, present and future challenges<xref ref-type="fn" rid="FN1"/>

    The wild bird trade and African parrots: past, present and future challenges<xref ref-type="fn" rid="FN1"/>

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    African parrots are among the most traded of all birds listed on the appendices of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Collapses in some wild populations due to trapping for the pet...
  8. A national range inventory for the Kingdom of Lesotho ‘n nasionale opname van die weivelde van die koningkryk van Lesotho

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    With the need for an understanding of the nation's rangelands, the Division of Range Management of the Kingdom of Lesotho has undertaken a national range inventory. This resource study has utilized as aids in this task, the up‐to‐date techniques of...
  9. An assessment of cassava African mosaic disease in South Africa and Swaziland

    An assessment of cassava African mosaic disease in South Africa and Swaziland

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    A preliminary assessment of the distribution of African mosaic disease (AMD) in cassava in Natal, Transvaal and Swaziland suggests that at present the threat to commercial plantings in Natal has been contained through (i) commercial establishment of cassava in an...