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    Rapid evolution of dispersal ability makes biological invasions faster and more variable

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    Author
    Ochocki, Brad M.; Miller, Tom E.X.
    Date
    2017
    Abstract
    Genetic variation in dispersal ability may result in the spatial sorting of alleles during range expansion. Recent theory suggests that spatial sorting can favour the rapid evolution of life history traits at expanding fronts, and therefore modify the ecological dynamics of range expansion. Here we test this prediction by disrupting spatial sorting in replicated invasions of the bean beetleᅠCallosobruchus maculatusᅠacross homogeneous experimental landscapes. We show that spatial sorting promotes rapid evolution of dispersal distance, which increases the speed and variability of replicated invasions: after 10 generations of range expansion, invasions subject to spatial sorting spread 8.9% farther and exhibit 41-fold more variable spread dynamics relative to invasions in which spatial sorting is suppressed. Correspondingly, descendants from spatially evolving invasions exhibit greater mean and variance in dispersal distance. Our results reveal an important role for rapid evolution during invasion, even in the absence of environmental filters, and argue for evolutionarily informed forecasts of invasive spread by exotic species or climate change migration by native species.
    Citation
    Ochocki, Brad M. and Miller, Tom E.X.. "Rapid evolution of dispersal ability makes biological invasions faster and more variable." Nature Communications, 8, (2017) Springer Nature: https://doi.org/10.1038/ncomms14315.
    Published Version
    https://doi.org/10.1038/ncomms14315
    Type
    Journal article
    Publisher
    Springer Nature
    Citable link to this page
    https://hdl.handle.net/1911/94193
    Rights
    This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the articleメs Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material.
    Link to License
    https://creativecommons.org/licenses/by/4.0/
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    • BioSciences Publications [365]
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    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map