1. Forest Science and Technology Center of Catalonia (CTFC) Solsona Catalonia Spain
2. Centre for Ecological Research and Forestry Applications (CREAF) Cerdanyola del Valles Catalonia Spain
3. European Wilderness Society Tamsweg Austria
4. Department of Agriculture and Forest Engineering (EAGROF) University of Lleida Lleida Catalonia Spain
5. Joint Research Unit CTFC‐AGROTECNIO‐CERCA Solsona Catalonia Spain
6. Spanish National Research Council (CSIC) Cerdanyola del Valles Spain