nd College of Forest Resources, University of Washington - 1993-present: Faculty Affiliate, Division of Biological Sciences, The University of Montana
- 2001-2002: Sabbatical Fellow, National Center for Ecological Analysis and Syntheses (NCEAS), University of California, Santa Barbara and The Ecosystem Center, Woods Hole, MA
- 1988-1996: Director, Center for Streamside Studies, University of Washington
- 1995: Visiting Professor, University of Witwatersrand, South Africa
- 1985-1988: Director, Center for Water and the Environment, Natural Resources Research Institute, University of Minnesota; Professor, Department of Fisheries and WIldlife, and the Department of Ecology and Behavioral Biology, University of Minnesota
- 1978-1985: Director, Matamek Research Program, Woods Hole Oceanographic Institution
- 1984, 1988: Visiting Scientist, Centre d'Ecologie, Centre National de la Recherche Scientifique, Toulouse, France
- 1983: Visiting Professor, University of Montana
- 1977-1978: Assistant Curator, Academy of Natural Sciences of Philadelphia
- 1976-1977: Research Associate, Oregon State University
- 1974-1976: Postdoctoral Fellow, Fisheries Research Board of Canada, Pacific Biological Station
Professional Societies:
- American Association for the Advancement of Science
- American Society of Limnology and Oceanography
- Ecological Society of America
- North American Benthological Society
- Societas Internationalis Limnologie
Recent Committee & Consulting Activity (1986-1999)
- National Science Foundation: *Water and Watersheds Panel
*Long-term ecological research advisory panel
*Ecosystem research advisory panel
*Various NSF site reviews
*Coordinating committee and chair--various NSF
