- Assistant Professor of Organismic and Evolutionary Biology
- Assistant Curator of Vascular Plants
- OEB Faculty page
Using tools from physiological ecology, biometeorology, and quantitative modeling, my research is directed at answering basic questions in global change ecology. I am particularly interested in broad questions related to carbon cycling in temperate forests, such as "what factors affect spatial and temporal variation in carbon uptake and release at different time scales", "what are the relative contributions of above- and below-ground processes to this exchange?", and "how might these patterns change in the future?" I combine tower-based measurements of forest-atmosphere CO2 exchange with soil respiration, forest inventory, phenology, tissue chemistry, meteorological, and remote sensing data, together with models of varying complexity using inverse modeling ("data-model fusion") approaches. Since 2004, I have operated an eddy flux tower at the Bartlett Experimental Forest (White Mountains, New Hampshire), and I am also actively involved in research at the Howland Forest (northern Maine) AmeriFlux site and both the Hubbard Brook and Harvard Forest LTERs. In addition, I coordinate a regional phenological network ("PhenoCam") that uses digital webcams to provide continuous monitoring of canopy phenology at research sites across the northeastern United States and adjacent Canada.