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Empirical tests for ecological exchangeability

2005; Wiley; Volume: 8; Issue: 3 Linguagem: Inglês

10.1017/s1367943005002271

1469-1795

Russell B. Rader, Mark C. Belk, Dennis K. Shiozawa, Keith A. Crandall,

Wildlife Ecology and Conservation

Animal ConservationVolume 8, Issue 3 p. 239-247 Empirical tests for ecological exchangeability Russell B. Rader, Corresponding Author Russell B. Rader Department of Integrative Biology, Brigham Young University, 401 Widtsoe, Provo, Utah 84602-5181, USA All correspondence to: Russell Rader. E-mail: [email protected]Search for more papers by this authorMark C. Belk, Mark C. Belk Department of Integrative Biology, Brigham Young University, 401 Widtsoe, Provo, Utah 84602-5181, USASearch for more papers by this authorDennis K. Shiozawa, Dennis K. Shiozawa Department of Integrative Biology, Brigham Young University, 401 Widtsoe, Provo, Utah 84602-5181, USASearch for more papers by this authorKeith A. Crandall, Keith A. Crandall Department of Integrative Biology, Brigham Young University, 401 Widtsoe, Provo, Utah 84602-5181, USASearch for more papers by this author Russell B. Rader, Corresponding Author Russell B. Rader Department of Integrative Biology, Brigham Young University, 401 Widtsoe, Provo, Utah 84602-5181, USA All correspondence to: Russell Rader. E-mail: [email protected]Search for more papers by this authorMark C. Belk, Mark C. Belk Department of Integrative Biology, Brigham Young University, 401 Widtsoe, Provo, Utah 84602-5181, USASearch for more papers by this authorDennis K. Shiozawa, Dennis K. Shiozawa Department of Integrative Biology, Brigham Young University, 401 Widtsoe, Provo, Utah 84602-5181, USASearch for more papers by this authorKeith A. Crandall, Keith A. Crandall Department of Integrative Biology, Brigham Young University, 401 Widtsoe, Provo, Utah 84602-5181, USASearch for more papers by this author First published: 28 February 2006 https://doi.org/10.1017/S1367943005002271Citations: 45AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The concept of ecological exchangeability, together with genetic exchangeability, is central to both the Cohesion Species Concept as well as to some definitions of Evolutionarily Significant Units. While there are well-established criteria for measuring genetic exchangeability, the concept of ecological exchangeability has generated considerable confusion. We describe a procedure that uses the complementary strengths, while recognising the limitations, of both molecular genetic data and ecological experiments to determine the ecological exchangeability of local populations within a species. This is the first synthesis of a combined approach (experiments and genetics) and the first explicit discussion of testing ecological exchangeability. Although it would be ideal to find functional genes that interact to influence quantitative traits resulting in ecological differences (e.g. growth, size, fecundity), we suggest that our current knowledge of functional markers is too limited for most species to use them to differentiate adaptively different local populations. Thus, we argue that ecological experiments using whole organisms combined with neutral markers that indicate evolutionary divergence, provide the strongest case for detecting adaptive differences among local populations. Both genetic divergence and ecological experiments provide the best information for infering ecological exchangeability. This procedure can be used to decide which local populations should be preserved to maintain intraspecific variation and to determine which populations would enhance captive-breeding programs, augment endangered local populations and could best be used to re-introduce native species into historically occupied areas. Citing Literature Volume8, Issue3August 2005Pages 239-247 RelatedInformation