Russian Journal of Ecology, Vol. 34, No. 2, 2003, pp. 144–146. Translated from Ekologiya, No. 2, 2003, pp. 158–160. Original Russian Text Copyright © 2003 by Koval’chuk, Chernaya. SHORT COMMUNICATIONS Species Diversity of Leeches Populating Water Bodies of the Middle Urals L. A. Koval’chuk and L. V. Chernaya Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences, ul. Vos’mogo Marta 202, Yekaterinburg, 620144 Russia Received February 11, 2002 Key words: leeches, resistance, species diversity. In Russia, where the biogeochemical situation is Two species, E. octoculata and G. complanata, are exceptionally diverse, investigations of regions with most abundant and ecologically ﬂexible: they occur in extreme natural and anthropogenic environmental con- 14 and 11 out of 16 investigated water bodies, respec- ditions are of great practical signiﬁcance. The hydro- tively. A comparable frequency of occurrence in water sphere of the Middle Urals, being exposed to a strong bodies but lower abundance are characteristic of H. anthropogenic toxic impact, is undergoing large-scale stagnalis and E. nigricollis. The highest species diver- changes that entail both the impoverishment of species sity (all seven species) is characteristic of clean zones diversity and disturbances in intraspeciﬁc interactions of the Beloyarsk Reservoir and the
Russian Journal of Ecology – Springer Journals
Published: Oct 7, 2004
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