I am interested in community ecology and more specifically in species niches and the role of resource and habitat availability in generating ecological patterns and processes.  My research investigates habitat use by the community of ungulate herbivores in the Serengeti-Mara, a protected area in East Africa.  The study examines how the habitats used by each species varies seasonally and over time and also investigates if habitat use can be understood from a community perspective by considering species traits such as body size.  I am also interested in the effects of human activity on community and ecosystem functioning, sustainable management of natural resources, and conservation.