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Contemporary Problems of Ecology

2004 year, number 4

The Animal Population as an Indicator of the Ecological Status of the Soils of the North of West Siberia under the Action of Pollution with Oil

V. G. MORDKOVICH, V. S. ANDRIEVSKY, O. G. BEREZINA, I. I. LYUBECHANSKY, I. I. MARCHENKO

Abstract

A comparison of the communities of macro and microbionts of the newly formed ecosystems in the sites of oil production with the natural communities of the middle part of the Siberian Ridges of West Siberian plane is made. The action of oil and accompanying products in the area under investigation does not lead to soil defaunation but only decreases the level of zoological diversity and absolutely changes its structure. The newly formed communities, unlike natural ones, exhibit very mixed and unstable ecological composition of the Arthropoda. At this background, a noticeable place is occupied by the inhabitants of low-lying bogs known as the pioneers of development of the virgin substrates. According to all the indices, all the newly formed communities are closer to each other than to natural forest of bog reference communities.