1. Institute for Agricultural and Forest Environment, Polish Academy of Sciences, Bukowska 19, 60–809 Poznań , Poland
2. Department of Ecology, Faculty of Biology and Environmental Protection, University of Silesia, Bankowa 9, 40–007 Katowice , Poland
3. The Mazowiecko-Świętokrzyskie Ornithological Society, Radomska 7, 26-760, Pionki , Poland
4. Uppsala University, Department of Earth Sciences, Villavägen 16, 75 236 Uppsala , Sweden
5. Foundation “Dzika Polska”, Petofiego 7 lok. 18, 01–917 Warszawa , Poland
6. Polish Entomological Society, Dąbrowskiego 159, 60–594 Poznań , Poland
7. Museum and Institute of Zoology, Polish Academy of Sciences, Wilcza 64, 00–679 Warszawa , Poland
8. Forest Research Institute, Department of Natural Forests, Park Dyrekcyjny 6, 17–230 Białowieża , Poland
9. University of Gdańsk, Department of Plant Ecology, Laboratory of Paleoecology and Archaeobotany, Wita Stwosza 59, 80–308 Gdańsk , Poland
10. University of Warsaw, Faculty of Biology, Institute of Genetics and Biotechnology, Pawińskiego 5a, 02–106 Warszawa , Poland
11. Association for Nature “Wolf”, Twardorzeczka 229, 34–324 Lipowa , Poland
12. Institute of Biology, Siedlce University of Natural Sciences and Humanities Prusa 12, 08–110 Siedlce , Poland
13. Warmia and-Mazury University in Olsztyn, Faculty of Biology and Biotechnology, Department of Botany and Nature Protection, pl. Łódzki 1, 10–727 Olsztyn , Poland