Students in my lab examine aspects of speciation from the perspective of geographic variation in behavior in vertebrate systems. Much of our research focuses on a unisexual-bisexual species complex of mollies consisting of the Amazon molly (Poecilia formosa), an all female gynogentic fish that arose from the parental species: sailfin mollies (Poecilia latipinna) and Atlantic mollies (Poecilia mexicana) ~ 100,000 years ago.
Recently, my lab has moved into some conservation related topics. We examine predator-prey dynamics and the effects of introduced predators in the federally threatened and endangered aquatic salamanders Eurycea nana, E. tonkawae and E. sosorum. We have also examined the effects of turbidity on foraging and predator response in the federally endangered fountain darter, Etheostoma fonticola.
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