• Login
    View Item 
    •   CIB Repository
    • CORE TEAM RESEARCH OUTPUTS
    • RESEARCH: Hui C
    • View Item
    •   CIB Repository
    • CORE TEAM RESEARCH OUTPUTS
    • RESEARCH: Hui C
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    From introduction to equilibrium: reconstructing the invasive pathways of the Argentine ant in a Mediterranean region

    Thumbnail
    View/Open
    RouraPascualGCB2009.pdf (649.1Kb)
    Date
    2009
    Author
    Roura-Pascual, Nuria
    Bas, Josep M.
    Thuiller, Wilfried
    Hui, Cang
    Krug, Rainer
    Brotons, Lluis
    Format Extent
    664689 bytes
    Metadata
    Show full item record
    Abstract
    Determining the geographical range of invasive species is an important component of formulating effective management strategies. In the absence of detailed distributional data, species distribution models can provide estimates of an invasion range and increase our understanding of the ecological processes acting at various spatial scales. We used two complementary approaches to evaluate the influence of historical and environmental factors in shaping the distribution of the Argentine ant (Linepithema humile), a widespread, highly invasive species native to South America. Occurrence data were combined with environmental data at incremental spatial scales (extent and resolution) to predict the suitable range of the ant invasion using ecological niche models. In addition, we also used a spread model that simulated the jump dispersal of the species to identify the most plausible scenarios of arrival of L. humile in the NE Iberian Peninsula at local scales. Based on the results of both modelling practices, we suggest that L. humile might have reached its maximum geographic range at regional scales in the NE Iberian Peninsula. However, the species does not appear in equilibrium with the environment at small spatial scales, and further expansions are expected along coastal and inland localities of the Costa Brava. Long-distance jumps are ultimately responsible for the spread of the Argentine ant in the area. Overall, our study shows the utility of combining niche based models with spread models to understand the dynamics of species’ invasions.
    URI
    http://hdl.handle.net/123456789/407
    Collections
    • RESEARCH: Hui C [196]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
     

     

    Browse

    All of CIB RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsBy Date CreatedThis CollectionBy Issue DateAuthorsTitlesSubjectsBy Date Created

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback