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    Powdery bark in Eucalyptus accedens deters arthropods? An evaluation using ants

    144319_MajerJ95.pdf (37.36Kb)
    Access Status
    Open access
    Authors
    Majer, Jonathan
    Cocquyt, R.
    Recher, H.
    Date
    2004
    Type
    Journal Article
    
    Metadata
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    Citation
    Majer, J. D., R. D. Cocquyt & H. F. Recher (2004). Powdery bark in Eucalyptus accedens deters arthropods? An evaluation using ants. Journal of the Royal Society of Western Australia 87, 81-83.
    Faculty
    School of Agriculture and Environment
    Department of Environmental Biology
    Faculty of Science and Engineering
    Remarks

    Reference Number: #J95

    PDF file is also available from Jonathan Majer Email: J.Majer@curtin.edu.au

    Please cite the Reference number (as above)

    URI
    http://hdl.handle.net/20.500.11937/21914
    Collection
    • Curtin Research Publications
    Abstract

    Powderbark wandoo (Eucalyptus accedens) has a powdery triterpenoid-containing substance on the surface of its smooth bark, which is formed from sloughing peridermal cells. When compared with the similar-appearing wandoo (E. wandoo), which occurs inthe same area and which does not accumulate powder, fewer bark-associated arthropods are found. Exposure to this powder accelerated mortality of the ant, Iridomyrmexchasei, a species that tends scale and other sap-sucking insects on the foliage of eucalypts. Ants of this and two other species were unable to reach baits on the top of vertical wooden dowels that had been coated with powder taken from the bark of E. accedens. The powdermay deter arthropods from living or moving on the bark by chemical or physical means. It is postulated that the function of the powder is to reduce the threat from herbivorous or scale-tending arthropods that may live on, or traverse, the bark of this species.

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