My research is focused on vertebrate ecology and addresses several themes, including population ecology, conservation biology, behavioral ecology, and habitat ecology. Although I am broadly interested in questions about ecology and conservation of terrestrial vertebrates and their habitats, much of my work has a taxonomic specialization on bats. Bats are fascinating and challenging organisms to study because of their cryptic, nocturnal and volant habits. As the second most diverse group of mammals (~1,100 species worldwide), they are important components of both tropical and temperate ecosystems, yet many aspects of their population ecology remain poorly understood. My work seeks to understand the factors influencing bat population dynamics, including disease ecology, biogeography, demography, species interactions, behavioral ecology and diet. I also promote bat conservation through teaching, training people to work with bats, and giving public lectures on bat ecology and conservation.