Sökning: "Andrenidae"

Hittade 2 avhandlingar innehållade ordet Andrenidae.

1. 1. To Bee or Not to Be : Critical Floral Resources of Wild-Bees

   Författare :Magnus Larsson; Anders L Nilsson; Jon Ågren; Björn Cederberg; James H Cane; Uppsala universitet; []
   Nyckelord :Ecology; Andrena hattorfiana; Andrena marginata; Andrenidae; Knautia arvensis; limitation; oligolecty; pollen; pollination; solitary bee; specialist bee; Succisa pratensis; Ekologi;

   Sammanfattning : In recent decades, the development of strategies to prevent or slow the loss of biodiversity has become an important task for ecologists. In most terrestrial ecosystems wild-bees play a key role as pollinators of herbs, shrubs and trees. The scope of this thesis was to study 1) pollinator effectiveness of specialist bees vs. LÄS MER

3. 2. Chemical signals and odour-released behaviour in Andrena bees (Hymenoptera, Andrenidae)

   Författare :Jan Tengö; Uppsala universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : .... LÄS MER