1. Departamento de Botánica; Facultad de Ciencias Naturales y Oceanográficas; Universidad de Concepción; Casilla 160-C Concepción Chile
2. Instituto de Ecología y Biodiversidad; Casilla 653 Santiago Chile
3. The James Hutton Institute; Craigiebuckler Aberdeen AB15 8QH UK
4. Merriam-Powell Center for Environmental Research; Northern Arizona University; P.O. Box 6077 Flagstaff AZ 86011 USA
5. Department of Biological Sciences; Northern Arizona University; P.O. Box 5640 Flagstaff AZ 86011 USA
6. Department of Biological Sciences; Minnesota State University; Mankato MN 56001 USA
7. Institute of Ecology; Ilia State University; 32 I.Chavchavadze Av. Tbilisi 0179 Georgia
8. Department of Biology; York University; 4700 Keele Street Toronto ON M3J 1P3 Canada
9. University of Bordeaux; UMR CNRS 5805 EPOC; 33405 Talence France
10. Estación Experimental de Zonas Áridas; Consejo Superior de Investigaciones Científicas; Carretera de Sacramento s/n; La Cañada de San Urbano; Almería E-04120 Spain
11. MOE Key Laboratory of Cell Activities and Stress Adaptations; School of Life Science; Lanzhou University; Lanzhou 730000 People's Republic of China
12. Institut de Recherche pour le Développement (IRD); UMR DIADE/AMAP, CIRAD; TA A51/PS2 Montpellier Cedex 5 34398 France
13. Pontificia Universidad Católica del Ecuador; Av. 12 de Octubre y Roca Quito Ecuador
14. Department of Earth Sciences; University of Gothenburg; P.O. Box 460 Gothenburg SE-405 30 Sweden
15. Department of Botany; University of Otago; P. O. Box 56 Dunedin New Zealand
16. Departamento de Biología Vegetal II; Facultad de Farmacia; Universidad Complutense; Madrid E-28040 Spain
17. Institute of Landscape Ecology; Slovak Academy of Sciences; Štefánikova 3 Bratislava 814 99 Slovakia
18. Department of Conservation Biology, Vegetation and Landscape Ecology; University of Vienna; Rennweg 14 Vienna 1030 Austria
19. Central Department of Botany; Tribhuvan University; Kathmandu Nepal
20. Department of Animal and Plant Sciences; The University of Sheffield; Western Bank Sheffield S10 2TN UK
21. Biology Department; University of Montana Western; Dillon MT 59725 USA
22. WSL Institute for Snow and Avalanche Research SLF; Fluelastrasse 11 Davos 7260 Switzerland
23. Key Laboratory of Ecohydrology of Inland River Basin; Cold and Arid Regions Environmental and Engineering Research Institute; Chinese Academy of Sciences; 320 Donggang West Road Lanzhou 730000 China
24. Departamento de Biología y Geología; Universidad Rey Juan Carlos; Móstoles 28933 Spain
25. Department of Earth and Planetary Sciences; Johns Hopkins University; 327 Olin Hall, 3400 N. Charles Street Baltimore MD 21218 USA
26. Department TeSAF; University of Padova; Viale dell'Universitá 16 Legnaro 35020 Italy
27. Department of Biology; North Carolina State University; P.O. Box 7617 Raleigh NC 27695 USA
28. Division of Biological Sciences and the Institute on Ecosystems; University of Montana; Missoula MT 59812 USA