其他摘要：Small mammal communities were studied on 6 localities in the Slovak part of the Danube river branch system. The main aim of the study was to find out the composition of small mammal community in wetland habitats with the predominant vegetation of reeds and sedges. Among the most numerous species belonged Apodemus agrarius, recorded at all investigated sites in autumn 2013. This species was first recorded in the region in July 2013, As suggested by the time features of appearance and positions of potential migration barriers, especially the channel- and dike-system of Gabčíkovo hydroelectric power plant, the species colonized the Danube river branch system probably from Hungary by crossing the “old Danube” stream. Microtus oeconomus, a rare species in Pannonian Basin, was captured at four sites. Its population in the inland delta of the Danube is threatened by disturbed water regime of area. The species reached the highest relative abundance at site Bodíky – Kráľovská lúka. The family Soricidae was represented by one individual of Sorex araneus only. The possible reason of extremely low number of caught shrews is the massive flood in June 2013.
