1. Biodiversity and Climate Research Centre; Senckenberg Gesellschaft für Naturforschung; Senckenberganlage 25 60325 Frankfurt Germany
2. Laboratory of Molecular Environmental Biology; Institute for Interdisciplinary Research in Bio-Nano Sciences; Babe-Bolyai University; Treboniu Laurian 42 400271 Cluj Romania
3. Department of Biological Sciences; Texas Tech University; P.O. Box 43131 Lubbock TX 79409-3131 USA
4. Institute of Arctic Biology; University of Alaska Fairbanks; P.O. Box 757000 Fairbanks AK 99775 USA
5. Institut für Ökologie, Evolution und Diversität; Goethe Universität; Max-von-Laue-Str. 9 60438 Frankfurt am Main Germany
6. Science Applications; U.S. Fish & Wildlife Service; 101 12th Avenue Fairbanks AK 99701 USA
7. Department of Plant Biology; University of Minnesota; 1445 Gortner Avenue St. Paul MN 55108 USA