The regularities of biotic taxa distribution on the territory of the West Siberian plain

Quantitative regularities of the biotic taxa distribution on the territory of the West Siberian Plain within Tyumen and Omsk regions are analyzed in the article. The article shows their relation with the climate through dryness index, which controls heat-moisture rate on Earth surface. The nature of distribution of species, genera, families and groups of biota by geographical zones and subzones of the specified region was observed: all ranks of taxa maximum values are observed in the taiga to steppe zone transition area, where dryness index values are 0,95-1,2 («1). Formula of geographical and hierarchical dependence of quantity of taxa of plants and animals of any rank were determined. The article demonstrates their self-similarity, integrity and common (sole) climate dependence.

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