Imperilment in North American freshwater fishes is primarily due to habitat alteration, deterioration, and fragmentation. In response to the aquatic biodiversity crisis, there has been a call for action by the Center for Biological Diversity, with a petition for the federal listing of 404 aquatic species in the southeastern U.S. This thesis focuses on a petitioned species, the Caddo Madtom, Noturus taylori. The chapters in this thesis address the genetic variation, habitat limitations, and status of the Arkansas endemic. In summation, N. taylori was found to have a high level of genetic variation for an endemic madtom, and is relatively abundant throughout its distribution range. Additionally, N. taylori was found to exhibit variable habitat association within and among the drainages it inhabits. These data will provide an updated status for federal and state agencies for N. taylori, which will be informative for listing and conservation management decisions for the species.
|Advisor:||Fluker, Brook L.|
|Commitee:||Farris, Jerry, Harris, John|
|School:||Arkansas State University|
|School Location:||United States -- Arkansas|
|Source:||MAI 56/05M(E), Masters Abstracts International|
|Keywords:||Conservation, Endemism, Habitat fragmentation, Microsatellites, Phylogeography|
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