1. Department of Ecology & Evolutionary Biology, University of Kansas, Lawrence, Kansas 66045-7534
2. Department of Biology, Duke University, Durham, North Carolina 27708
3. NCAUR, ARS, USDA, Peoria, Illinois 61604
4. Department of Biology, University of Puerto Rico at Mayagüez, Mayagüez, Puerto Rico 00681
5. Laboratory of Intellectual Fundamentals for Environmental Studies, National Institute for Environmental Studies, Ibaraki 305-8506, Japan
6. Tokyo Office, TechnoSuruga Co. Ltd., 1-8-3, Kanda Ogawamachi, Chiyoda-ku, Tokyo 101-0052, Japan