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Limits and reasons for variation of spatial distribution of forest birds


, : Limits and reasons for variation of spatial distribution of forest birds. Uspekhi Sovremennoi Biologii 124(1): 57-65

The materials of long-term mapping of forest bird's nesting grounds on permanent areas in central Russia and southern Finland are analysed. The limits of variation of spatial distributions in different years are shown. The causes responsible for this variation, approaches to the assessment of the species saturation in suitable habitats, causes of species rarity, and stability of environmental conditions significant for species are discussed.

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