1. Department of Biology; University of Maryland; College Park MD USA
2. Department of Biology; University of Oklahoma; Norman OK 73019 USA
3. Museo Nacional de Ciencias Naturales, CSIC; Calle Jose Gutierrez Abascal, 2 Madrid 28006, Spain
4. Center for Macroecology, Evolution and Climate, National Museum of Natural Sciences; University of Copenhagen; Universitetsparken 15 Copenhagen 2100 Denmark
5. CIBIO/InBio-UE: Centro de Investigacão em Biodiversidade e Recursos Geneticos, Universidade de Evora; Évora 7000-890 Portugal
6. Departamento de Ecologia; Universidade Federal de Goiás; Campus II Goiânia GO Brazil
7. Restoration Ecology, Department of Ecology and Ecosystem Management; Technische Universität München; Emil-Ramann-Str. 6 Freising 85354 Germany
8. Dynamic Macroecology; Swiss Federal Research Institute WSL; Zürcherstr. 111 Birmensdorf 8903 Switzerland
9. Section for Ecoinformatics & Biodiversity, Department of Bioscience; Aarhus University; Ny Munkegade 114 8000 Aarhus C Denmark
10. Forest Ecology and Restoration Group, Departamento de Ciencias de la Vida, Edificio de Ciencias; Universidad de Alcalá; Campus Universitario, 28871 Alcalá de Henares (Madrid) Spain
11. Centre of Ecological Research and Forestry Applications (CREAF), Department of Animal Biology, Plant Biology and Ecology; Autonomous University of Barcelona; Barcelona Spain
12. Departamento de Biología y Geología, Escuela Superior de Ciencias Experimentales y Tecnológicas; Universidad Rey Juan Carlos; c/Tulipán s/n Móstoles E-28933 Spain