Literaturdatenbank
Literaturdatenbank |
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Ward, R., Babitzke, J. B., & Killebrew, F. C. (2013). Genetic population structure of cagle's map turtle (graptemys caglei) in the guadalupe and san marcos rivers of texas—a landscape perspective. Copeia, 2013(4), 723–728.
Added by: Sarina Wunderlich (06 Jul 2014 16:17:28 UTC) |
| Resource type: Journal Article DOI: http://dx.doi.org/10.1643/CG-12-122 BibTeX citation key: Ward2013a View all bibliographic details  |
Categories: General Keywords: Chelydra serpentina, Chelydridae, Genetik - genetics, Habitat - habitat, Nordamerika - North America, Schildkröten - turtles + tortoises, Systematik - taxonomy Creators: Babitzke, Killebrew, Ward Collection: Copeia |
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| Abstract |
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We investigated genetic variability in 101 individuals of the Cagle's Map Turtle (Graptemys caglei) collected from across most of its extant distribution in the Guadalupe River and from a site on the San Marcos River of Texas. Analyses of allelic variation in microsatellite loci indicated individuals from the San Marcos River were genetically similar to conspecifics from the middle Guadalupe River. Turtles from the upper Guadalupe River, on the other hand, were genetically divergent from middle Guadalupe River individuals. Isolation by distance appears to play a major role in genetic structuring within the Guadalupe River. Anthropogenic features (e.g., dams and reservoirs), while they may be expected to restrict gene flow, appear to have had little impact on genetic structure.
Added by: Sarina Wunderlich |