Using the example of two mass species of bumblebees in the Middle Ob lowland, it is shown that the change in bumblebees activity during the day is a species-specific indicator. B. distinguendus in the conditions of the ...

The features of the seasonal activity of bumblebees (Bombus distinguendus, B. pascuorum, B. bohemicus, B. flavidus, B. sylvestris, B. hypnorum, B. jonellus, B. sporadicus, B. lucorum, B. sichelii) of the Middle Ob lowlands ...