1. Centre for Studies in Geography and Spatial Planning, CEGOT, Geography Department, Faculty of Arts and Humanities, University of Porto, Via Panorâmica, 4150-564 Porto, Portugal
2. Guarda’s Town Hall, Serviço Florestal e Desenvolvimento Rural, Praça do Município 5A, 6300-854 Guarda, Portugal
3. Centre for the Research and Technology of Agroenvironmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro, 5001-801 Vila Real, Portugal