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(35-06) Variation in the timing of the seasonal occurrence in Ground Beetles (Coleoptera, Carabidae) along pollution gradient. Skalski, Tomasz*,1, Kubiak, Piotr1, Kramarz, Paulina2, Laskowski, Ryszard2, 1 Department of Entomology, Institute of Zoology, Jagiellonian University, Ingardena 6, Kraków, Poland2 Department of Ecotoxicology, Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 3, Kraków, Poland ABSTRACT- Seasonal changes in the number of individuals of Ground Beetles in two habitat gradients of pollution (meadow and forest) were investigated. A two-way analysis of variance for seasonal occurrence of dominant Carabidae was significant for species on all localities as well as between species on one locality. Strict relationship between time of seasonal occurrence of some species of adult forms and tolerance to heavy metal concentration was noticed. Among food specialists with broad seasonal activity (multivoltine species) on unpolluted area significant decline in abundance along pollutant gradient was observed. However, species which were strictly common in spring time (univoltine or bivoltine) were insignificantly influenced by heavy metals. In that case only time of seasonal activity was prolonged. Differences in occurrence patterns of particular dominant species between two habitats are also discussed. Key words: Carabidae, heavy metals, annual activity, responses |
