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Biochemistry Research International
Volume 2017, Article ID 3020571, 6 pages
Research Article

Biochemical Content of Cambium of Abies nephrolepis Eaten by Bears on the Far East of Russia

1Pacific Geographical Institute FEB RAS, 7 Radio St., Vladivostok 690041, Russia
2Far Eastern Federal University, 8 Sukhanova St., Vladivostok 690091, Russia
3G.B. Elyakov Pacific Institute of Bioorganic Chemistry, 159 Prospect 100 Let Vladivostoku, Vladivostok 690022, Russia

Correspondence should be addressed to I. V. Seryodkin; ur.xobni@navinikdoyres

Received 5 February 2017; Accepted 27 March 2017; Published 26 April 2017

Academic Editor: Robert J. Linhardt

Copyright © 2017 I. V. Seryodkin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The peculiarity of bears behavior of stripping of bark is typical for all species. We have described the damage to trees, by Asiatic black bear (Ursus thibetanus) and brown bear (U. arctos) in Primorsky Krai and by brown bears on the Sakhalin Island during 1998–2015. In this study, we studied the damaged bark of the tree only in cases where it was clear that part of the cambium was eaten by bears. Cambium of species Abies nephrolepis is the most preferred for bear consumption in Primorsky Krai. We distinguished very large seasonal fluctuations in the amount of its consumption. The greatest interest of bears in this kind of food is in the summer time. We have analyzed the composition of the cambium of A. nephrolepis. These results suggest that the important purpose of the use of this kind of food is to restore and maintain the normal functioning of the intestines.