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Critical resource levels of pollen for the declining bee Andrena hattorfiana (Hymenoptera, Andrenidae)

Magnus Larsson, Auteur ; Markus Franzen, Auteur

Dans Biological Conservation (134(3) JAN 2007)

The native bee fauna provides an important ecosystem function, but a large proportion of this fauna in Europe is threatened as a result of habitat loss and fragmentation. The solitary bee Andrena hattorfiana is specialised on collecting pollen f[...]

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