Spatial Diversity of Bird Communities of the Middle Taiga of the Central Siberian Plateau
L. G. VARTAPETOV1, A. G. LARIONOV2, N. N. EGOROV2
1Institute of Animal Systematics and Ecology, SB RAS, 630090, Novosibirsk, Frunze str., 11
2Institute for Biological Problems of Cryolithozone, SB RAS, 678890, Yakutsk, Leninа ave., 41
Keywords: классификация и пространственно-типологическая структура населения птиц, средняя тайга, Среднесибирское плоскогорье, classification and spatial-typological structure of bird communities, middle taiga, Central Siberian Plateau
Abstract
The basic tendencies of territorial changes in bird communities of the middle taiga of the Central Siberian Plateau are connected with the differences in forest cover percent, productivity, swampiness, developing of shrubs, abundance of water and on how much the land is built-up. On the whole, these factors are the same as in the West Siberian and Central-Yakutsk plains, although there are some differences. Namely, only West Siberia is characterized by the communities living on upper swamps and low-inundated meadows in combination with the lowland swamps. In Central Siberia forest ornithocomplexes are the most diverse, mainly at the expense of the communities living in open forests and post-fire areas at different stages of regeneration. The ekoton ornithokomplex type was distinguished only for Central Yakutiya. In North Ural, forest cover percent and tree species composition are still significant for the formation of ornithocomplexes, but the impact of high-altitude zonation and the productivity of biocenoses and developing of shrubs in the habitats connected with it are also becoming important.
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