Spatial organization of the bird communities of Central Siberia

Based on extensive information on the numbers and distribution of birds obtained during route surveys over the past 60 years, a classification of the bird communities of Central Siberia is considered at the level of its types. The specificity of this classification is determined by the predominance of latitudinal-zonal types over non-zonal ones. The main directions of territorial changes in the bird communities are determined by afforestation and watering, combined with latitudinal zonation. Less significant differences in ornithocomplexes are associated with the altitudinal zone and built-up area concerned. The main natural and anthropogenic factors and the hierarchy of their importance for the spatial differentiation of the bird populations have been established. The regional specificity of the spatial organization of the bird communities in Central Siberia in comparison with the Eastern European and West Siberian plains is reduced to the manifestation of high-altitude zonation due to differences in mountain-tundra ornithocomplexes, a greater differentiation of forest ornithocomplexes and less represented non-zonal population types.