This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Elena N. Nakvasina
Northern (Arctic) Federal University named after M.V. Lomonosov, Higher School of Natural Sciences and Technologies, Department of Forest Management and Soil ScienceArkhangelsk, Russia
Nadezhda A. Prozherina
N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the Russian Academy of Sciences, Laboratory of Population EcologyArkhangelsk, Russia