All of my research has conservation biology as a central theme, with a focus on how species use whole landscapes, particularly the role of dispersal. I take a range of approaches, including manipulative experiments, natural experiments and the application of population genetic techniques. I place a strong emphasis on testing ecological theory using applied conservation problems. Projects under way are examining how reptiles, beetles and butterflies respond to habitat fragmentation and degradation, including examining the influence of the matrix on species that depend on remnant vegetation.