Natural Zonality in the Distribution of Arthropods, Birds and Vascular Plants in Lower Circum-Ob Area and on the Yamal Peninsula
V. N. RYZHANOVSKY, A. V. GILEV, V. N. OLSHVANG
Institute of Plant and Animal Ecology UrB RAS, 620144, Ekaterinburg, 8 Marta str., 202
Keywords: зональность, членистоногие, птицы, сосудистые растения, число видов, обилие, полуостров Ямал, zonal distribution, arthropods, birds, vascular plants, number of species, abundance, the Yamal Peninsula
Abstract
The present paper is devoted to the analysis of the pattern of zonal distribution of mesofauna arthropods, birds, and vascular plants in the area from the northern boreal forest to arctic tundra of the Yamal Peninsula by the gradient of summer temperatures. Dynamics of northern ecosystems in latitude determines distinctions in plant species number which directly affects abundance of species and that of invertebrates, and indirectly, through the invertebrates - the same indices of birds. Breaks in continuity marking natural boundaries, where the components of arctic communities are changed to the boreal ones are followed with variations in species diversity.
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