Research
Research findings: Atmospheric nitrogen deposition alters the biogeochemistry, microbial activity, productivity and biodiversity of alpine freshwaters and vegetation of the US Rocky Mountains. Now, with record high temperatures, longer snow-free seasons, and retreating glaciers, climate X N interactions stimulate some freshwater biota while depressing some alpine plant species. Global change is reorganizing alpine species assemblages and ecosystem processes.
Current Research Projects
- Long-term ecological research and monitoring in Loch Vale Watershed, Rocky Mountain National Park. 1982-present
- Western Mountain Initiative. 2004-present