TAXONOMIC COMPOSITION OF BEETLES (INSECTA: COLEOPTERA)OF INTACT FLOODLAND ECOSYSTEMS OF RIVERS IN BEREZINSKY RESERVE

Abstract

In the intact floodplain ecosystems of the Krasnogubka, the Zhortayka and the Ushacha rivers in the Berezinsky Biosphere Reserve 140 species of beetles from 32 families and 94 genera have been found. The largest number of species
among beetles is noted for Dytiscidae (38 species), Curculionidae (12), Chrysomelidae (11) and Hydrophilidae (10 species). Three species of beetles ((Graptodytes bilineatus (Sturm, 1835) и Hydroporus scalesianus Stephens, 1828
from the Dytiscidae, and Hydraena reyi Kuwert, 1888 from the Hydraenidae) are first reported for the Reserve fauna.

In the floodplain ecosystems of the Krasnogubka River 94 species of beetles were found, in the floodplain ecosystems of the Ushachi River — 84, and the Zhortayki River — 44 species. In river ecosystems indicators of intact watercourses (Nebrioporus assimilis (Paykull, 1798) and Deronectes latus (Stephens, 1829)) and in floodplain alder forests an indicator of intact forests (Peltis grossa (Linnaeus, 1758) have been found.

The fauna of floodplain meadows (77 species) is distinguished by the largest number of coleopteran species among floodplain ecosystems. Sixty-five species have been found in the rivers.

Fig. 3. Table 1. Ref.: 8 titles.