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  • Distribution, frequency and density of the weed Achillea millefolium Yarrow in the Snowy Mountains, Australia

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    Author(s)
    Johnston, Frances
    Hill, Wendy
    Pickering, Catherine
    Griffith University Author(s)
    Hill, Wendy M.
    Pickering, Catherine M.
    Johnston, Frances
    Year published
    2007
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    Abstract
    This paper examines the distribution of Achillea millefolium L. (Yarrow, Asteraceae), in the Snowy Mountains. Location data from species specific surveys, field experiments and 18 general vegetation surveys were mapped in relation to altitude/floristic zone, climatic parameters (rainfall and temperature) and location of roads and tracks. Achillea millefolium is less common with increasing altitude and benefits from human disturbance. Using all location data, Yarrow was found at 376 sites; nearly all associated with human disturbance (91% of sites) mostly road or trail verges (72%) and around buildings and other ski tourism ...
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    This paper examines the distribution of Achillea millefolium L. (Yarrow, Asteraceae), in the Snowy Mountains. Location data from species specific surveys, field experiments and 18 general vegetation surveys were mapped in relation to altitude/floristic zone, climatic parameters (rainfall and temperature) and location of roads and tracks. Achillea millefolium is less common with increasing altitude and benefits from human disturbance. Using all location data, Yarrow was found at 376 sites; nearly all associated with human disturbance (91% of sites) mostly road or trail verges (72%) and around buildings and other ski tourism infrastructure. It occurred along ~100 km of public access roads, management trails and walking tracks, from the tableland to the alpine zone (800 m to 2100 m altitude). The general vegetation surveys, however, indicate that although it can be found in 15% of disturbed sites, it is uncommon in undisturbed vegetation (4%). Yarrow occurred at high density around buildings and low density along walking tracks in the species specific surveys. The distribution of A. millefolium demonstrates that human disturbance provides favourable habitats for weeds even in mountains. Although its distribution was affected by altitude, A. millefolium was able to establish and grow on some of the highest mountains in Australia, along tracks. Increased disturbances as well as climate change are likely to facilitate its spread.
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    Journal Title
    Victorian Naturalist
    Volume
    124
    Issue
    1
    Publisher URI
    http://home.vicnet.net.au/~fncv/welcome.htm
    http://home.vicnet.net.au/~fncv/vicnat.htm
    Copyright Statement
    © The Author(s) 2007. The attached file is reproduced here in accordance with the copyright policy of the publisher. For information about this journal please refer to the journal's website or contact the authors.
    Subject
    Environmental Sciences
    Biological Sciences
    Publication URI
    http://hdl.handle.net/10072/17615
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    • Journal articles

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