Ph.D. 1986, University of Wisconsin - Madison
Climate change, wind and fire, deer and moose browsing, invasive species, earthworms
Office: 220e Green Hall
Phone: (612) 624-3671
Fax: (612) 625-5212
Research interests include: (1) Effects of large-scale wind and fire in boreal forests of the Boundary Waters Canoe Area Wilderness, including the big blowdown of 1999, and the subsequent prescribed fires and wildfires; (2) European earthworm invasion in forests and the complex interactions with other invasive species and deer grazing; (3) Long-term dynamics of old-growth maple and hemlock forests in Upper Michigan; (4) patterns of tree height in the eastern U.S.; (5) vegetation and moose browsing on Isle Royale National Park; and (6) Climate change, its influence on forests near the prairie-forest border, and interactions with deer, fire and wind, insects and invasive species.