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    The effect of changing land use on the availability of potential nest trees for the endangered Muir’s corella (Cacatua pastinator pastinator): a case study of the establishment of commercial Tasmanian Blue Gum plantations in Western Australia

    227140_227140.pdf (943.6Kb)
    Access Status
    Open access
    Authors
    Mawson, P.
    Cooper, Christine
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Mawson, P. and Cooper, C. 2015. The effect of changing land use on the availability of potential nest trees for the endangered Muir’s corella (Cacatua pastinator pastinator): a case study of the establishment of commercial Tasmanian Blue Gum plantations in Western Australia. Pacific Conservation Biology. 21: pp. 146-152.
    Source Title
    Pacific Conservation Biology
    DOI
    10.1071/PC14913
    ISSN
    10382097
    School
    Department of Environment and Agriculture
    URI
    http://hdl.handle.net/20.500.11937/27268
    Collection
    • Curtin Research Publications
    Abstract

    In the mid-1990s commercial Tasmanian blue gum (Eucalyptus globulus) plantations were established in south-west Western Australia. We examined the extent of loss of potential nesting trees for an endangered obligate hollow-nesting cockatoo, Muir’s corella (Cacatua pastinator pastinator), resulting from establishment of these plantations during 1995–2004. Clearing of native vegetation was extensive in both Tonebridge (51%) and Frankland (76%) study sites. The proportion of land used for timber plantation increased significantly from 2.4% to 12.1% (Tonebridge) and 0.5% to 9% (Frankland) in the period 1995–2004. Plantations were predominantly established on already cleared farmland, but during the rapid development of plantations, large numbers of remnant paddock trees (mean = 56%) in cleared farmland were removed. Despite the loss of more than 50% of potential nesting habitat over an area of 376 km2 within its current distribution, Muir’s corella continued to increase in numbers. However, there are concerns about delayed impacts of the clearing of potential nest trees we have observed, and consequences of further tree loss during future plantation harvesting. Evidence-based demonstration of biodiversity protection is increasingly needed to fulfil forest and plantation stewardship requirements, so greater care needs to be directed towards the management of extant remnant vegetation in paddocks.

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