1. P. E. Busher (https://orcid.org/0000-0001-7612-1931) ✉ (pbusher@bu.edu), College of General Studies and Center for Ecology and Conservation Biology, Boston Univ., Boston, MA, USA.
2. M. Mayer (https://orcid.org/0000-0002-9905-3625), Dept of Bioscience, Aarhus Univ., Denmark.
3. A. Ulevičius and A. Samus, Inst. of Biosciences, Center of Ecology and Environment, Vilnius Univ., Vilnius, Lithuania.
4. G. Hartman, Dept of Wildlife, Fish and Environmental Studies, Swedish Univ. of Agricultural Sciences, Ultuna, Sweden.
5. F. Rosell (https://orcid.org/0000-0003-1047-0156), Dept of Natural Sciences and Environmental Health, Faculty of Technology, Natural Sciences and Maritime Sciences, Univ. of Southeast Norway, Bo i Telemark, Norway.