1. College of Natural Resources and UWSP Museum of Natural History, University of Wisconsin–Stevens Point , 800 Reserve Street, Stevens Point, Wisconsin 54481 , USA
2. Sam Noble Museum and Department of Biology, University of Oklahoma , 2401 Chautauqua Avenue, Norman, Oklahoma 73071 , USA
3. Department of Forestry and Natural Resources, Purdue University , 195 Marsteller Street, West Lafayette, Indiana 47907 , USA
4. Department of Biological Sciences, Colorado Mesa University , 1100 North Avenue, Grand Junction, Colorado 81501 , USA
5. Department of Biology and Geology, Baldwin Wallace University , 275 Eastland Road, Berea, Ohio 44017 , USA
6. Department of Applied Environmental Science, California State University, Monterey Bay , 100 Campus Center, Seaside, California 93955 , USA
7. Departments of Biology and Environmental Studies, Warren Wilson College , Asheville, North Carolina 28815 , USA
8. Department of Biology, University of Portland , 5000 N. Willamette Blvd., Portland, Oregon 97203 , USA