My research interests are in two major areas: size-structured predator prey interactions and anthropogenic effects on populations and communities.

The majority of my research examines how differences in body size among individuals in a population (size structure) influence the outcome of predator-prey interactions between conspecifics (cannibalism) and between species that also compete for prey (intraguild predation). I examine these interactions in aquatic insects, primarily larval dragonflies and beetles, using mesocosm experiments. I am also interested in the role of non-host predators of amphibian parasites in parasite transmission.

My applied research focuses on the impacts of anthopogenic stressors on populations and communities. I am involved in a multi-institution project examining the effects of urbanization on the sex ratio and age structure of aquatic turtles. I am also interested in the direct and indirect effects of chemical pollutants (pesticides and pharmaceuticals) on species interactions in aquatic ecosystems.