Research Interests

I am an ecologist at the University of Alaska Fairbanks with broad interests 
in the arctic natural sciences. My research

describes the impacts of climate warming during the 20th century on various components of the arctic ecosystem, including the vegetation, permafrost, hydrology, wildlife, and people. My interests lie more in the linkages between these components than in any isolated component. I have used repeat photography to document landscape change in northern Alaska, which appears in my book (The Changing Arctic Landscape) and traveling museum exhibit (Then & Now, The Changing Arctic Landscape). I teach a course called Climate Variability and Northern Ecosystems, which includes a lab section. I enjoy boating, skiing, snowmachining, dog-mushing, photographing, studying, and writing about the major river systems in northern Alaska.

Listen to a radio report covering some recent wildlife research.