1. Department of Biological Sciences Wayne State University Detroit Michigan U.S.A.
2. Ecology, Evolution and Organismal Biology, Department of Biological Sciences University of Arkansas Fayetteville Arkansas U.S.A.
3. Department of Biological Sciences University of Notre Dame Notre Dame Indiana U.S.A.
4. Department of Animal Ecology and Tropical Biology, Biocentre University of Würzburg Würzburg Germany