The enigma of variation in the California bear scarabs
Keller, Oliver. 2014. The Enigma of Variation in the California Bear Scarabs. -- In Proceedings: 10th Annual Symposium on Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University, p. 26
The endemic California "bear scarabs" offer a model for examining highly variable lineages, revealing evolutionary mechanisms that generate variation. The phenotypically variable Paracotalpa ursina species complex is assessed using a combination of DNA data (nuclear AFLP and mitochondrial sequences), morphology, and niche modeling. We use the molecular data to examine discontinuities between populations and investigate the role of geography in genetic isolation among P. ursina morphotypes. Both molecular data sets suggest that the Transverse Mountain Ranges in California form a biogeographic barrier isolating populations and acting, in part, as a mechanism that promotes variation.
Presented to the 10th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Heskett Center, Wichita State University, April 25, 2014.
Research completed at Department of Biological Sciences, College of Liberal Arts and Sciences