River Valley

Effects of climate warming on stream ecosystem structure and function

Lone Peak

Response of nutrient dynamics in mountain streams to accelerated human development 

Grand Canyon

Linking whole ecosystems carbon cycling with quantitative food webs in the Grand Canyon

Yellowstone River

Analysis of the Yellowstone and Missouri River food webs to support recovery of Pallid Sturgeon

In general, we are interested in questions that bridge population, foodweb and ecosystem ecology to understand and predict ecological responses to global change. We use bioenergetic and stoichiometric frameworks to link species to ecosystems, and to examine effects of altered hydrology, carbon, and nutrient cycles on freshwater ecosystem structure and function.