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S. M. Shafigullina 《Russian Journal of Ecology》2009,40(3):218-226
Interannual changes in geobiont and chortobiont abundance on the islands of Kuibyshev Reservoir are largely determined by flood conditions, because the seasonal average abundance of many taxa is negatively correlated to the water level in May and June. Floods influence the abundance of these animals both directly and indirectly, through biocenotic connections and some aspects of behavior. Long-term positive trends are observed in the abundance of many species. The hypothesis is proposed that this increase in the abundance of geobionts and chortobionts is a consequence of adaptation processes in these communities, which are stimulated by the flood regime of the reservoir. 相似文献
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S. M. Shafigullina 《Russian Journal of Ecology》2000,31(2):96-100
The main regulatory mechanism of populations is revealed for some insect groups (Carabidae, Curculionidae, Chrysomelidae,
and Hemiptera) on islands of the Kuibyshev Reservoir. This mechanism is the dynamics of the ratio of species with imaginal
and preimaginal winter diapause. The extent of these dynamics depends on the stability of habitats, which in turn depends
on water-level conditions in the reservoir. The period of adaptation of the community of carabids of the most flooded biotope
to the extreme impact of water conditions is determined. 相似文献
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Long-term stationary investigations on the islands of the Kuibyshev Reservoir have revealed one of the elements of adaptation of communities of ground beetles to extreme conditions created by prolonged floods. In contrast to hydrologic conditions in the reservoir during the flood, small fluctuations in the water level in summer and autumn have a favorable effect on the community of ground beetles of flooded stations, which are actively repopulated after floodwater recession. Under conditions of the heterogeneous environment created in such areas, different species establish relationships that promote their coexistence. 相似文献
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