Literaturdatenbank
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Pope, B., Kazmaier, R., & Ward, R. , Cooters on the prairie: Affinity of an isolated population in the texas panhandle - abstract. Unpublished paper presented at Program and Abstracts of the Tenth Annual Symposium on the Conservation and Biology of Tortoises and Freshwater Turtles.
Added by: Admin (06 Jan 2014 18:23:05 UTC) |
| Resource type: Conference Paper BibTeX citation key: Pope2012 View all bibliographic details  |
Categories: General Keywords: Emydidae, Genetik - genetics, Habitat - habitat, Nordamerika - North America, Pseudemys concinna, Pseudemys gorzugi, Pseudemys texana, Schildkröten - turtles + tortoises, Systematik - taxonomy Creators: Kazmaier, Pope, Ward Collection: Program and Abstracts of the Tenth Annual Symposium on the Conservation and Biology of Tortoises and Freshwater Turtles |
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| Abstract |
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Genetics is becoming an increasingly useful to elucidate species affinities and relationships within and among populations. These relationships are becoming increasingly important to factor into management plans as habitat modification and commercial collection are increasingly contributing to population reductions in turtles. In 2007, a previously undocumented population of River Cooter (Pseudemys sp.) was found in the Plum Creek drainage in the northeastern Texas Panhandle. This drainage contains populations of Eastern River Cooters (Pseudemys concinna) in eastern Oklahoma, but historic headwater capture could also ally this population with the Rio Grande Cooter (Pseudemys gorzugi) to the southwest or the Texas Cooter (Pseudemys texana) to the south. However, the closest populations of all three of these species are more than 300 km away from the Panhandle population. To gain a better understanding of this isolation, we sampled this population to obtain DNA and acquired tissue samples from the three species throughout their western ranges. Comparisons among these populations will help determine origin and affinity of the Panhandle cooters. Although detailed analyses are forthcoming, preliminary genetic sequencing from the Panhandle individuals was compared to known sequences from the Gene Bank database. The Cytochrome-B gene was 95% similar with all three species, and ND4 96% similar with both Texas and Eastern River Cooters. Results from more complete comparisons among the Panhandle cooters and samples from across the ranges of the three species should be valuable from a management perspective if analyses suggest this isolated population is an evolutionarily significant unit or a distinct population segment.
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