| Fine-scale local adaptation in an invasive freshwater fish has evolved in contemporary time. | |
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MedLine Citation:
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PMID: 23193126 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Adaptive evolutionary change in only a few generations can increase the ability of non-native invasive species to spread, and yet adaptive divergence is rarely assessed in recently established populations. In this study, we experimentally test for evidence of fine-scale local adaptation in juvenile survival and growth among three populations of an invasive freshwater fish with reciprocal transplants and common-garden experiments. Despite intrinsic differences in habitat quality, in two of three populations we detected evidence of increased survival in 'home' versus 'away' environments with a Bayesian occupancy model fitted to mark-recapture data. We found support for the 'local' versus 'foreign' criterion of local adaptation as 14 of 15 pairwise comparisons of performance were consistent with local adaptation (p < 0.001). Patterns in growth were less clear, though we detected evidence of location- and population-level effects. Although the agents of divergent ecological selection are not known in this system, our results combine to indicate that adaptive divergence-reflected by higher relative survival of local individuals-can occur in a small number of generations and only a few kilometres apart on the landscape. |
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Authors:
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Peter A H Westley; Eric J Ward; Ian A Fleming |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Proceedings. Biological sciences / The Royal Society Volume: 280 ISSN: 1471-2954 ISO Abbreviation: Proc. Biol. Sci. Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2012-11-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101245157 Medline TA: Proc Biol Sci Country: England |
Other Details:
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Languages: eng Pagination: 20122327 Citation Subset: IM |
Affiliation:
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Ocean Sciences Centre, Memorial University of Newfoundland, , St John's, Newfoundland, Canada, , A1C 5S7, National Marine Fisheries Service, Northwest Fisheries Science Center, National Oceanic and Atmospheric Administration, , 2725 Montlake Boulevard East, Seattle, WA 98112-2097, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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