1. Institute of Mountain Research, Austrian Academy of Sciences, c/o University of Vienna, 1030 Wien, Austria.
2. Faculty Centre of Biodiversity, University of Vienna, 1030 Wien, Austria.
3. Vienna Institute for Nature Conservation and Analyses, 1090 Wien, Austria.
4. Institute of Ecology, Ilia State University, 0162 Tbilisi, Georgia.
5. Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas, 22700 Jaca, Spain.
6. Department of Taxonomy and Plant Ecology, Institute of Biological Research, 400015 Cluj-Napoca, Romania.
7. Centre for Ecology and Hydrology, EH26 0QB Midlothian, Scotland, UK.
8. University of Innsbruck, 6020 Innsbruck, Austria.
9. Department of Botany, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain.
10. Department of Environmental Management, Mediterranean Agronomic Institute of Chania, 73100 Chania, Greece.
11. Department of Biology, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
12. Institute of Landscape Ecology of the Slovak Academy of Sciences, 81499 Bratislava, Slovakia.
13. Department of Plant and Environmental Sciences, University of Göteborg, 40530 Göteborg, Sweden.
14. Institute of Plant and Animal Ecology, Russian Academy of Sciences, 620144 Ekaterinburg, Russia.
15. EcoScience Scotland, G41 4QP Glasgow, Scotland, UK.
16. Instituto Nacional de Pequisa da Amazonia, Avenida André Araújo, 2936, Manaus, Brazil.
17. Laboratory of Environmetrics, University of Molise, 86090 Pesche (Isernia), Italy.
18. Alexandru Borza Botanical Garden, Babes-Bolyai University, 400015 Cluj-Napoca, Romania.
19. Department of Earth and Environmental Sciences, University of Pavia, 27100 Pavia, Italy.
20. Centre Alpien de Phytogéographie, Fondation J.-M. Aubert, 1938 Champex-Lac, Switzerland.
21. Section of Biology, University of Geneva, 1292 Chambésy, Switzerland.
22. Department of Evolutionary and Functional Biology, University of Parma, 43100 Parma, Italy.
23. Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland.