Scientific publications

The article presents new information regarding the phenology of bumblebees in the north of the Arkhangelsk Region. The study is based on several years of surveys in the lower reaches of the Northern Dvina River. We studied common species that are typical of this region. They are Bombus hortorum, B. veteranus, B. pascuorum, B. bohemicus, B. pratorum, B. jonellus, and B. sichelii. The abundance of these species varied significantly across years. The flight seasons of B. hortorum, B. veteranus, B. pascuorum, B. bohemicus, B. pratorum, B. jonellus, and B. sichelii are typical for Northern Europe. In comparison to the western part of this region (the British Isles and the south of Scandinavia), the flight seasons of the studied species of bumblebees in northern Arkhangelsk Region are shorter, the reason being a milder warming impact of the Atlantic in the east of North-European Russia. In our region, B. hortorum, B. veteranus, B. pascuorum, and B. sichelii are late-development species. The flight period of the social parasite B. bohemicus is aligned with the flight season of its hosts. B. pratorum and B. jonellus are species with early development. We have not detected the occurrence of two generations during the summer in B. pratorum and B. jonellus, as has been reported for the west of Northern Europe and assumed for B. jonellus in the Solovetsky Archipelago.