Kaliningrad
ZotovSergeyI.Immanuel Kant Baltic Federal University, Institute of Nature Management, Territorial Development and Urban Planning, 2 Zoologicheskaya St., Kaliningrad 236022, Russiazotov.prof@gmail.com
SpirinYuriA.Immanuel Kant Baltic Federal University, Institute of Nature Management, Territorial Development and Urban Planning, 2 Zoologicheskaya St., Kaliningrad 236022, Russiaspirin1234567890@rambler.ru