As a result of the analysis of long-term stationary and research expedition materials of the authors, as well as generalization of publications on the fauna of elaterids in the Baikal region 92 species from 27 genera and six subfamilies were registered. Taking into account the environmental preferendums elaterid’ species united in five groups: dendroxilobionts, dendropedobionts, subxerofilic, litohydrofilic and criohydrofilhic. The first is most numerous and second groups: each of them counts more than 20 species – with a wide ecological range, origin are related to the forest and of the taiga landscapes. The separate representatives of these groups meet in soils of open-space – mainly on areas going out from under the forest. For the first time on a broad information basis the distribution of elaterids in the landscape-ecological range of the Baikal region is demonstrated; and the map showing the change in species composition and diversity of elaterid’ fauna under the influence of natural and anthropogenic factors is constructed. The main tendency of species diversity change is a decrease in the species number in the gradient of an increasing of climate aridity, strengthening of the hypothermia and anthropogenic pressure.

Bessolitsyna Ekaterina Prokopievna, Doctor of Science (Geography), Leading Scientist, V. B. Sochava Institute of Geography SB RAS, 1, Ulan-Batorskaya st., Irkutsk, 664033, Russian Federation, tel.: (3952) 42-70-95, e-mail: bessol@irigs.irk.ru 

Silaev Alexey Sergeevich, Postgraduate, V. B. Sochava Institute of Geography SB RAS, 1, Ulan-Batorskaya st., Irkutsk, 664033, Russian Federation, tel.: 8(3952) 42-70-95, e-mail: alex-3952@mail.ru

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