1. CREAF Cerdanyola del Vallès, Catalonia Spain
2. Universitat Autònoma de Barcelona Cerdanyola del Vallès, Catalonia Spain
3. BIOGECO, INRA University of Bordeaux Cestas France
4. Department of Biodiversity, Ecology and Evolution, Faculty of Biological Sciences Complutense University of Madrid Madrid Spain
5. Forest Research Group, INDEHESA University of Extremadura Plasencia Spain