Spatial-Typological Differentiation of Ecosystems on West-Siberian Plain Communication 3 Terrestrial Invertebrates
M. G. Sergeev1, B. R. Striganova2, V. G. Mordkovich3, V. V. Molodtsov4, I. N. Bogomolova3, O. N. Nikolaeva5
1 Institute of Systematics and Ecology of Animals SB RAS; Novosibirsk State University
2 A. N. Severtsov Institute of the Problems of Ecology and Evolution RAS
3 Institute of Systematics and Ecology of Animals SB RAS
4 Novosibirsk State University
5 Institute of Systematics and Ecology of Animals SB RAS; Siberian State Geodesic Academy
mgs@fen.nsu.ru
Keywords: terrestrial invertebrates, biomass, zoomass, animal population, zoning, spatial differentiation, West-Siberian Plain, cluster analysis, classification, thematic map
Pages: 467-474
Abstract
Spatial distribution of terrestrial Invertebrata assemblages is analyzed for West-Siberian Plain. Several functional groups, namely soil nematodes, annelids, microarthropods, mesoarthropods, snails, grass layer arthropods, are discriminated. Their air-dry biomass and roles in the local ecosystems are estimated. Two classifications of invertebrate assemblages are made: the first classification is for data averaged relative to primary contours of the vegetation map of West-Siberian Plain and the latter one is for the contour groups on this map. The digital thematic map of invertebrate assemblages' distribution is made. Some peculiarities of their spatial heterogeneity are revealed in comparison with the vegetation and humus distribution patterns. The biomass distribution pattern of invertebrate groups is less heterogeneous, but it corresponds to the distribution of life zones.
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