1. The George Washington University 1 Department of Biological Sciences , , Washington, DC 20052 , USA
2. Purdue University 2 Department of Biology , , West Lafayette, IN 47907 , USA
3. Purdue University 3 Department of Forestry and Natural Resources , , West Lafayette, IN 47907 , USA
4. Friday Harbor Laboratories, University of Washington 4 , Friday Harbor, WA 98250 , USA
5. University of Washington 5 Department of Biology , , Seattle, WA 98195 , USA
6. University of Florida, Gainesville 6 Department of Biology , , FL 32611 , USA