Bumblebee vulnerability and conservation world-wide

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We review evidence from around the world for bumblebee declines and review management to mitigate threats. We find that there is evidence that some bumblebee species are declining in Europe, North America, and Asia. People believe that land-use changes may be having a negative effect through reductions in food plants in many parts of the world, but that other factors such as pathogens may be having a stronger effect for a few species in some regions (especially for Bombus s. str. in North America). Evidence so far is that greater susceptibility to land-use change is associated world-wide with small climatic ranges, range edges, and late-starting colony-development cycles. More evidence is needed on the roles of pollen specialization, nest sites, hibernation sites, and pesticides. It is still too early to assess the success of schemes aimed at improving forage in agricultural and conservation areas. However, schemes aimed at raising public awareness have been very successful. Until proven safe, we recommend that live bumblebees should not be moved across continents or oceans for commercial pollination.

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ELECTRONIC FILE - Zoology: Invertebrates

Citation: Williams PH, Osborne JL. 2009. Bumblebee vulnerability and conservation world-wide. Apidologie. 40(3 Spec Issue):367–387. Available at: https://www.apidologie.org/articles/apido/pdf/2009/03/m08143.pdf.