I research methods for delimiting species boundaries. I work mostly with Sceloporus grammicus, a lizard species found in Mexico, but I have also published papers on other lizard species, malaria mosquitoes, meadow jumping mice, and crickets. Along with species boundaries issues I do research in phylogentics, population genetics, and hybrid zones. I am always looking for good undergraduate researchers so if you are interested email me your CV. Abstracts of my research are posted below.