1. Department of Biological Sciences, Wichita State University, 537 Hubbard Hall, Wichita, Kansas 67260 USA
2. Department of Biology, University of Waterloo, Waterloo, Ontario NL2 3G1, Canada
3. Savannah River Ecology Laboratory, University of Georgia, Aiken, South Carolina 29802 USA
4. Conservation and Environmental Science Program, University of Wisconsin–Milwaukee, 3209 N. Maryland Ave., Milwaukee, Wisconsin 53201 USA
5. Department of Biological Sciences, University of Wisconsin–Milwaukee, 3209 N. Maryland Ave., Milwaukee, Wisconsin 53201 USA
6. Field Station, University of Wisconsin–Milwaukee, 3095 Blue Goose Road, Saukville, Wisconsin 53080 USA