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    Crassula helmsii in U.K. ponds: Effects on plant biodiversity and implications for newt conservation

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    Authors
    Langdon, Samantha J.
    Marrs, Robert H.
    Hosie, Charlotte A.
    McAllister, Hugh A.
    Norris, Karen M.
    Potter, Jacqueline
    Affiliation
    University College Chester
    Publication Date
    2009-06-15
    
    Metadata
    Show full item record
    Abstract
    We conducted preliminary investigations into some of the potential effects of Australian swamp stonecrop, a nonnative invasive aquatic plant in the U.K., on native pond plants and newt populations. Four studies were carried out in the northwest of England, in the field and under controlled conditions, during the period 2002 to 2003. Six plant species, which are important to newts as an egg-laying substrate, showed significant germination suppression up to 83% under Australian swamp stonecrop. However, there was no significant effect of Australian swamp stonecrop on pond seed banks, and no significant loss of plant species was observed in ponds invaded by the weed. Smooth newt eggs hatched at a later developmental stage when laid on Australian swamp stonecrop compared with those laid on the native substrate watercress, generally considered to be a preferred species. No significant differences in developmental stage at hatching could be detected between substrates in the great crested newt, a protected species.
    Citation
    Weed Technology, 2004, 18(5), pp. 1349–1352
    Publisher
    Weed Science Society of America
    Journal
    Weed Technology
    URI
    http://hdl.handle.net/10034/70435
    DOI
    10.1614/0890-037X(2004)018[1349
    Additional Links
    http://www.wssa.net/WSSA/Pubs/WeedTech.htm
    Type
    Article
    Language
    en
    Description
    This article is not available through ChesterRep.
    ISSN
    0890-037X
    ae974a485f413a2113503eed53cd6c53
    10.1614/0890-037X(2004)018[1349
    Scopus Count
    Collections
    Biological Sciences

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