36 43 http://en.russian-arctic.info/upload/iblock/8a3/8a37a73697d083479b53500c99d2d402.pdf About distribution and hierarchy biota in the North of Tyumen region The article explores quantitative regularities of distribution and the hierarchy of biotic indicators North, Tyumen region. Their connection with climatic parameters is shown: average air temperatures for the warmest month, indices of heat, dryness, average annual temperature, annual amount of precipitation, etc. The nature and schematic maps of their zonal distribution are constructed. The formulas for the dependence of the main biota indicators are determined: the number of taxa of plants and animals of different hierarchical levels, productivity and phytomass from indices of heat, dryness, and other climatic characteristics. The similarity of the spatial and temporal distribution of climatic parameters, as well as the richness and diversity of biota, is shown. For the convenience of analysis and assessment of the distribution of biota of different genesis, the concept of group (fractional) thermal indices, belonging to different temperature ranges, is introduced: 0-5, 5-10, 10-15, 15-tm, oC : the North biota climate indices of heat and dryness taxa interactions 0 А.А. Konovalov