1. Department of Fisheries, Wildlife, and Conservation Sciences Oregon State University Corvallis Oregon USA
2. Division of Natural Sciences St. Norbert College De Pere Wisconsin USA
3. Leibniz Institute for the Analysis of Biodiversity, Museum of Nature Hamburg Germany
4. U.S. Geological Survey, Maine Cooperative Fish and Wildlife Research Unit Orono Maine USA
5. Department of Microbiology Oregon State University Corvallis Oregon USA
6. Department of Biomedical Sciences Oregon State University Corvallis Oregon USA
7. U.S. Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit Corvallis Oregon USA