1. School of Life Sciences Keele University Staffordshire UK
2. Institute of Dendrology Polish Academy of Sciences Kórnik Poland
3. IASMA Research and Innovation Centre Trento Italy
4. The EFI Project Centre on Mountain Forests (MOUNTFOR) Trento Italy
5. Department of Forest Management Poznań University of Life Sciences Poznań Poland
6. Institute of Biological Sciences University of Zielona Góra Zielona Góra Poland