EN
Results of the investigations of spatial and temporal differentiations of Apoidea in
the forests of Wielkopolski National Park were presented. It was shown that the both
forest floor differ with the degree of species differentiation and domination’s structure
and total number of bees. In the herbaceous layer of the forests about twice as many
spedes were found than in the crowns. Also the Shannon-Weaver’s indices for bees
communities of the herbs layer are higher in all three investigated forest ecosystems.
The curves of Apoidea numbers in tree crowns and forest floor were similar. The
curves of Apoidea numbers in the deciduous forests have one peak in the first days of
May. Whereas the curves of Apoidea numbers in the pine forest have multi peak course.
It was proved that trees play an important role in feeding chain of bees inhabiting
deciduous forests.