Changes in the composition and structure of Carabidae communities in a local agricultural landscape over a period of more than forty years

Hello Evgeny Vladimirovich! This is very interesting material! I have such a plan only scattered individual observations. What facts can't be explained?

Alexey Adamov Hello Evgeny Vladimirovich! This is very interesting material! I have such a plan only scattered individual observations. What facts can't be explained? Wrote in lichk

I did such work on forest-steppe stations in a nature reserve in the Kursk region. 15 years of mine + data from the Annals of Nature before me +data from Arnoldi and Sharova, who worked there in the mid-70s. There is also a change of dominants, some species have changed biotopes-for example, they have left the forest for clearings..Since this is a biosphere reserve, the changes in the environment were only natural (no plowing or clearing).

Grechanichenko T. E. Changes in the population structure of ground beetles (Coleoptera, Carabidae) of the meadow steppe in recent decades // Ecology. 2001a. - No. 2. - pp. 132-136. Grechanichenko, T. E. and Guseva, N. A., Population of ground beetles (Coleoptera, Carabidae) of heterogeneous forest biotopes in the central forest-steppe, Zool. zhurnal 2000, vol. 79, no. 5, pp. 548-555. rechanichenko, T. E. and Guseva, N. A., Structure and dynamics of the population of ground beetles (Coleoptera, Carabidae) in the meadow steppe, Zool. zhurnal 1999, vol. 78, no. 4, pp. 442-450. And these are the conclusions from the dissertation: . In recent decades, significant changes have taken place in the structure of the dominance of ground beetle communities. Its annual variability under the forest canopy is lower than in open biotopes, and in the latter it increases with increasing xeromorphy of the plant association. 7. The increase in climate humidity, which began in the late 60s-early 70s, led to the spread of a number of mesophilic species from the non-mown steppe to the mown and grazed steppe and a sharp decrease in the number of xerophiles in the non-mown steppe, i.e., to a greater eurytopicity of mesophilic and a greater stenotopicity of xerophilic species. The complication of the structure of oak forests and the corresponding transformation of their light and hydrothermal regimes led to the release of a number of forest species (as well as species zonally confined to forest habitats)into open biotopes - forest clearings and some steppe. 8. Analysis of the long-term dynamics of indicators of general activity and species richness of ground beetles, as well as the activity of individual mass species, revealed the presence of cyclical fluctuations with a period of about 12 years. There were no significant directional changes (trends) in the dynamics of general activity and species richness of ground beetle communities. At the same time, it was found that in the late 80's and early 90's, either the dynamics of general parameters of the structure of SagaYs1ae communities and individual species changed in the opposite direction, or its velocity changed. The reason for this is the completion of the mesophytization process of plant communities in the model region at the turn of the 80-90s and its change to the opposite process of increasing climate aridity. 144

Thank you, Tatiana Eduardovna! I didn't see this work. We have slightly different natural conditions and other model biotopes, but it is extremely interesting.