1. Center for Ecological Research and Forestry Applications (CREAF) Cerdanyola del Vallès Spain
2. Department of Conservation Biology Estación Biológica de Doñana (EBD‐CSIC) Seville Spain
3. Department of Ecology Brandenburg University of Technology Cottbus Germany
4. Unitat Ecologia Dept. Biologia Animal, Biologia Vegetal i Ecologia Universitat Autònoma Barcelona Cerdanyola del Vallès Spain