As evolutionary biologists we seek to understand the fundamental principles that explain how change occurs in life over the course of time. Speciation, one of the cornerstones of Darwinian theory, is the process whereby one gene pool is divided into two. Our research elucidates sympatric speciation or the dividing of gene pools in the absence of geographic or physical isolation, and in the face of gene flow. We use a multidisciplinary research strategy that utilizes molecular biology, field ecology, and population genetics to address the question of how two populations of a species develop into two distinct species.

Research News

Meredith Doellman’s work on the genomics of geographic and host-related variation in Rhagoletis pomonella has been published in Genes. See it here online!



Congratulations to Dr. Mary Glover, who successfully defended her dissertation, “The ecological and evolutionary drivers of speciation in walnut-infesting flies” on August 13!

Gilbert St. Jean


Our lab is actively recruiting prospective students who share similar research interests. Contact Prof. Feder at