I am interested in the ways that ecology has shaped the evolution of plant-animal interactions. I find these interactions particularly important when they underlie the vulnerability or resilience of organisms and ecosystems to environmental change. In the case of the loss of seed dispersal mutualisms on Guam, I am interested in factors underlying species-specific impacts of bird loss across Guam’s tree species. By determining specific benefits and costs of bird dispersal and its loss, I hope to develop a framework for predicting the severity of bird declines in other systems.