Komlyk V. Ecological features of ground beetles of the genus Bembidion of riparian ecosystems of Prisamarie Dniprovskoye region

The dissertation considers the features of the taxonomic, size-weight and ecomorphic structure of ground beetles communities (Coleoptera, Carabidae) in the riparian ecosystems of Prisamarie Dniprovskoye region and the role of representatives of the genus Bembidion. It was found 146 species of ground beetles (Coleoptera, Carabidae), including 26 rare and in need of protection. The genus Bembidion dominates in number of species and abundance in the study area. The species composition and regularities of distribution of Bembidion ground beetles depending on humidity, salinity and granulometric composition of the soil were determined in the riparian ecosystems. The morphological variability of dominant species of the genus Bembidion was assessed in different types of riparian ecosystems. It was found that linear body parameters are more informative than morphometric indices to determine the features of morphological variability of Bembidion ground beetles under the influence of natural and anthropogenic factors. Sexual dimorphism of B. articulatum, B. aspericolle, B. minimum and B. varium is observed in all considered linear measurements and is less pronounced in morphometric indices. The dominant species of the genus Bembidion can be used for zoodiagnostics of soils and the degree of anthropogenic transformation of ecosystems due to their wide distribution and ecological plasticity. The representatives of this genus are most affected by humidity, salinity and granulometric composition of the soil in the conditions of Prisamarie Dniprovskoye region. Two species (B. ephippium, B. aspericolle) need protection.