Genetic evidence challenges the native status of a threatened freshwater fish (Carassius carassius) in England.

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Version: Final published version
Serval ID
serval:BIB_4E0539C007E5
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Genetic evidence challenges the native status of a threatened freshwater fish (Carassius carassius) in England.
Journal
Ecology and Evolution
Author(s)
Jeffries D.L., Copp G.H., Maes G.E., Lawson Handley L., Sayer C.D., Hänfling B.
ISSN-L
2045-7758
Publication state
Published
Issued date
2017
Peer-reviewed
Oui
Volume
7
Number
9
Pages
2871-2882
Language
english
Abstract
A fundamental consideration for the conservation of a species is the extent of its native range, that is, regions naturally colonized. However, both natural processes and human-mediated introductions can drive species distribution shifts. Ruling out the human-mediated introduction of a species into a given region is vital for its conservation, but remains a significant challenge in most cases. The crucian carp Carassius carassius (L.) is a threatened freshwater fish thought to be native to much of Europe. However, its native status in England is based only on anecdotal evidence. Here, we devise an approach that can be used to empirically test the native status of English fauna. We use this approach, along with 13 microsatellite loci, population structure analyses, and Approximate Bayesian Computation (ABC), to test hypotheses for the origins of C. carassius in England. Contrary to the current consensus, we find strong support for the human-mediated introduction of C. carassius into England during the 15th century. This result stimulates an interesting and timely debate surrounding motivations for the conservation of species. We discuss this topic, and the potential for continued conservation of C. carassius in England, despite its non-native origins.

Keywords
Approximate Bayesian Computation, introduced species, land bridge, microsatellites, postglacial recolonization
Pubmed
Web of science
Open Access
Yes
Create date
22/06/2017 7:43
Last modification date
20/08/2019 14:03
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