My broad interests are to understand global environmental change issues, especially climate change and biodiversity loss. I study the responses of plants and animals to these changes as well as how ecosystems affect climate change through carbon cycling and biogeophysical processes. I am also interested in patterns, controlling factors, and effects of forest disturbances, particularly insect outbreaks. My research incorporates a range of spatial scales, from plot to global, and temporal scales, from daily to century. I utilize a combination of tools including remote sensing, geographic information systems, process and statistical modeling (ecosystem and insect population), and field measurements to investigate these questions.