1. CREAF Centre de Recerca Ecològica i Aplicacions ForestalsCatalonia Spain
2. DISTAL University of Bologna Bologna Italy
3. Centre for Functional Ecology Department of Life Sciences Calçada Martim de FreitasUniversity of Coimbra Coimbra Portugal
4. Department of Biogeography and Global Change National Museum of Natural SciencesSpanish Council for Scientific ResearchCSIC Madrid Spain
5. School of Biological Sciences The University of Adelaide Adelaide SA Australia
6. Department of Biology Wilfrid Laurier University Waterloo ON Canada
7. Universitat Autònoma de Barcelona Catalonia Spain
8. INRAEUniversity of BordeauxBIOGECO Cestas France