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This paper considers the results of studies on the effect of changes in the hydrological regime of
the river on the structure and spatial distribution of riparian ground beetles (Coleoptera, Carabidae). To assess
changes in the structure of the riparian community, statistical methods from the R version 4.1.1 program were
used. This paper presents the results of studying the spatial distribution of typical riparian ground beetles in
the riparian continuum of 180 km of the Psel River section (basin of Dnipro, Ukraine), disturbed by the dam
of the power plant and hydrotechnical transformations of the banks. The riparian carabid species are relatively
well represented in the studied section of the Psel River, often locally. Riparian arthropods are assumed
particularly sensitive to hydrological and morphological river modifications. It is shown that the use of ground
beetles as biological indicators is especially important on rivers, where dams form reservoirs not of a lake
type, but of a channel type. The structure of riparian assemblages of ground beetles makes it possible to
establish the spatial boundaries of channel reservoirs and to assess the degree of disturbance of the
hydrological regime. Arthropod abundance within the narrow shoreline strip provides the best indicator of
potential trophic linkages between the aquatic and terrestrial systems, as trophic interactions occur
predominantly close to the shoreline. The use of statistical methods has demonstrated that typical riparian
beetles well reflect changes in the geomorphology of the shoreline; respond with changes in the structure of
communities to a decrease in the speed of the current and siltation of the riverbanks.