1. Depto de Ciencias, Facultad de Artes Liberales, Univ. Adolfo Ibáñez Santiago Chile
2. Center of Applied Ecology and Sustainability (CAPES) Santiago Chile
3. Centre for Ecological Research and Applied Forestry (CREAF), Campus Autonomous Univ. of Barcelona, Cerdanyola del Vallès Catalonia Spain
4. CSIC, Cerdanyola del Vallès Catalonia Spain