My research interests lie in exploring how large mammal herbivores and fire shape vegetation patterns, and vice versa. Fundamental to determining herbivore effects on ecosystems is understanding what determines spatio-temporal variation in their abundance. My recent research in the Serengeti Ecosystem investigates how gut parasite infection levels influence wildebeest movement and diets, with a broader objective of assessing how different regions of the ecosystem contribute to determining population size over time. I also have a background of researching grass traits and life histories, with a strong interest in how communities are assembled across environmental gradients.