1. Flathead Lake Biological Station University of Montana Polson Montana USA
2. Department of Biology Lund University Lund Sweden
3. Department of Integrative Biology University of Oklahoma Stillwater Oklahoma USA
4. Bryan College of Health Sciences, Lincoln, NE, USA and School of Mathematical & Statistical Sciences Arizona State University Tempe Arizona USA
5. Division of Theoretical Biology and Biophysics Los Alamos National Laboratory Los Alamos New Mexico USA
6. School of Life Sciences Arizona State University Tempe Arizona USA