I think of myself as a biogeographer who studies humans.  What does this mean?  First, it means that I am interested in learning how humans interact with other components of ecosystems to create patterns of species distribution that vary in space and time.  Second, it means that I am interested in examining how humans create and transmit knowledge about biogeographical patterns and processes.   Within these two broad topical areas, I am pursuing various specific questions via the active research projects summarized in the pages linked below.