Russian Journal of Ecology, Vol. 34, No. 5, 2003, pp. 359–362. Translated from Ekologiya, No. 5, 2003, pp. 395–398. Original Russian Text Copyright © 2003 by Bel’skaya, Esyunin. SHORT COMMUNICATIONS Arachnids (Arachnidae) in a Spring Wheat Agrocenosis in Southern Sverdlovsk Oblast and the Effect of Treatment with Decis, a Pyrethroid Insecticide, on Their Populations 1 2 E. A. Bel’skaya and S. L. Esyunin Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences, ul. Vos’mogo Marta 202, Yekaterinburg, 620144 Russia Perm State University, ul. Bukireva 15, Perm, 614600 Russia Received April 24, 2002 Key words: spiders, harvestmen, capture rate, seasonal population dynamics, Decis, agrocenosis. Arachnids are active predators. Due to their abun- in 1999. The density of spiders on the vegetation was dance, they are an important component of arthropod low: two to three specimens per 100 movements of a communities in both natural and man-made ecosys- sweep net or ﬁve specimens per 100 plants. Hence, sea- tems. It has been proposed to use some species of spi- sonal population dynamics and responses to insecticide ders as indicators of the effects of various economic treatment were studied in herpetobiontic species, which activities on the state of the
Russian Journal of Ecology – Springer Journals
Published: Oct 7, 2004
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