Bees of the Masurian Landscape Park: diversity and ecology (Hymenoptera: Apoidea, Apiformes)

Species diversity and ecology of bees (Apiformes) was studied in the Masurian Landscape Park (NE Poland). The Park is dominated by woodland (50%) and lakes (30%). In total, 153 species were recorded there, which account for 32.6% of the Polish bee fauna. In the study area, the bee fauna is characterized by a lower diversity of Halictidae and a high diversity of Apidae. One of the dominant species is Andrena lapponica, with two generations: in early spring (myrtillus generation) and spring (vitis-idaea generation). This contrasts with earlier reports that this species is univoltine.