Professor Emeritus, 2015-present

Professor, 1990 to 2015, School for Environment and Sustainability, University of Michigan, Ann Arbor MI. (formerly School of Natural Resources and Environment). Associate Dean and Acting Dean, 2006-2012.

Assistant through Full Professor, 1972-1990, Department of Zoology, University of Maryland

Post-doctoral scholar, 1971-72, University of Chicago

PhD, University of Michigan, 1971

Research Interests:

Great Lakes ecology and management

River flows, their variability, and the maintenance of environmental flows

Landscape influences on river ecosystems, including influence of human alteration by land use

Influence of multiple stressors on freshwater ecosystems

Freshwater conservation and restoration