I am an evolutionary ecologist interested in linking trophic interactions, physiological mechanisms and behavioral strategies.  Specifically, I am interested in how the chemical composition of organisms is related to traits that affect performance in competitive, mutualistic, and predatory interactions.  My work builds upon a multiple resource framework, ecological stoichiometry, which is the study of element ratios in living systems.  I also have also several secondary interests, including the consequences of insect herbivory for ecosystem processes such as nutrient cycling, and the ecological significance of division of labor in social insect colonies. I spend a lot of time thinking about ants, but I also work with a variety of different terrestrial and aquatic insects, including treehoppers, aphids, and mosquitoes.