1. Faculty of Natural Sciences and Mathematics, University of Montenegro, Podgorica, Montenegro
2. Johannes Kepler University, Linz, Austria
3. Faculty of Natural Sciences, University of Cyril and Methodius, Skopje, Republic of North Macedonia
4. Gymnasium “30. Septembar” Rožaje, Montenegro
5. Macedonian Academy of Sciences and Arts, Skopje, Republic of North Macedonia
6. Faculty of Forestry, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
7. Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria
8. ZRC SAZU, Institute of Biology, Ljubljana, Slovenia