1. Department of Psychology, University of New Mexico, Logan Hall, 2001 Redondo Dr. NE, Albuquerque, NM 87131, USA
2. Northern Arizona University, Flagstaff, AZ 86011-0001, USA
3. Wayne State University, 42 W Warren Avenue, Detroit, MI 48202, USA
4. Tufts University, 200 College Avenue, Medford, MA 02155, USA
5. Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA
6. University of Rhode Island, 45 Upper College Road, Kingston, RI 02881, USA
7. Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA