Trophic migrations of the brown bear in the forest landscapes of the Vostochny Nature Reserve on Sakhalin Island

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Authors: Nikulina, I V, Sabirov, R N
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2021
• Subjects: Sakhalin
• Online Access: http://dx.doi.org/10.1088/1755-1315/946/1/012042; https://iopscience.iop.org/article/10.1088/1755-1315/946/1/012042; https://iopscience.iop.org/article/10.1088/1755-1315/946/1/012042/pdf

Abstract The article deals with trophic migrations of the brown bear in the characteristic forest landscapes of the Vostochny Nature Reserve. Active life of a bear in the reserve begins after hibernation and is directly related to foraging in different seasons of the year. In the spring-early summer period, bears concentrate in valley forest complexes and coastal-marine landscapes, where, along with plant food, they obtain various products of animal origin thrown out of the sea. During the summer period, from the beginning of the course of salmon and until the end of their spawning, the animals mainly live in the mouths of rivers, and as the fish move, they go upstream and are distributed among their numerous tributaries. During the autumn period, bears concentrate mainly in mountainous forest landscapes and high-altitude natural complexes of the reserve, where they eat ripe berries and pine nuts, their trophic migrations are significantly reduced.