1. School of Natural Resources University of Nebraska‐Lincoln103 Hardin Hall 3310 Holdrege St. NE 68583 USA
2. U.S. Environmental Protection Agency National Risk Management Research Laboratory Cincinnati OH 45268 USA
3. Department of Biology‐Centre for Biomedical Research University of Victoria Victoria BC V8P 5C2 Canada
4. Department of Aquatic Sciences and Assessment Swedish University of Agricultural Sciences Box 7050 SE‐ 750 07 Uppsala Sweden
5. Zoological Society of London Regents Park London NW1 4RY UK
6. Lancaster Environment Centre Lancaster University Lancaster LA1 4YQ UK
7. U.S. Fish & Wildlife Service Bloomington MN 55437‐1003 USA
8. Department of Environmental Sciences Emory University Atlanta Georgia 30322 USA
9. Region 3 U.S. Fish & Wildlife Service La Crosse WI 54603 USA
10. Centre for Marine Socioecology Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS 7000 Australia
11. National Research Council U.S. Environmental Protection Agency Cincinnati Ohio 45268 USA
12. National Oceanographic and Atmospheric Administration Great Lakes Environmental Research Laboratory Ann Arbor MI 48108 USA
13. U.S. Geological Survey ‐ Nebraska Cooperative Fish & Wildlife Research Unit University of Nebraska Lincoln NE 68583 USA