affiliation not provided to SSRN, affiliation not provided to SSRN, Technische Universität München (TUM), Universidad Pablo de Olavide-Universidad de Sevilla - Consejo Superior de Investigaciones Científicas, University of Sarajevo, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Technische Universität München (TUM), Swiss Federal Institute for Forest, Snow and Landscape Research WSL, affiliation not provided to SSRN, Czech University of Life Sciences Prague (CULS) - Faculty of Forestry and Wood Sciences, University of Agriculture in Krakow, affiliation not provided to SSRN, Bulgarian Academy of Sciences and Universidad Politécnica de Madrid