1. Department of Bioscience, Aarhus University, in Aarhus, Denmark
2. School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
3. Forest Research Centre, School of Agriculture, University of Lisbon, Lisbon, Portugal
4. Aarhus Institute of Advanced Studies, Aarhus University, Aarhus, Denmark
5. Instituto Pirenaíco de Ecología, Zaragoza, Spain
6. Universidad Politécnica de Madrid, Madrid, Spain
7. Department of Biology, Faculty of Natural Sciences and Mathematics, Universidad del Rosario, in Bogotá, Colombia
8. Ecosystems Research Group, School of Biological Sciences, University of Western Australia, Perth, Australia
9. Research Center on Biodiversity and Genetic Resources, Faculty of Sciences of the University of Porto, Porto, Portugal
10. Estonian University of Life Sciences, Tartu, Estonia
11. University of Helsinki, Helsinki, Finland
12. University of Rennes, Rennes, France