Affiliation: | ∗ School of Biological Sciences, University of Nebraska, Lincoln, U.S.A. † Department of Biological Sciences, University of Toronto Scarborough, Canada ‡ Departments of Zoology and Botany, University of British Columbia, Canada § Department of Biology, Wichita State University, U.S.A. ∗∗ Department of Biology, University of Mississippi, Oxford, U.S.A. |