Native bee pollinators of berry crops in the Fraser Valley of British Columbia
Keywords:
honeybee, <i>Apis</i>) spp., native bees, pollination, blueberry, cranberry, , raspberryAbstract
Collections of native bees were made on blueberry, cranberry, and raspberry fields in the Fraser Valley of southwestern British Columbia to determine whether these bees were present in sufficient diversity and abundance to pollinate berry crops. Bumblebees were present on all three crops but not abundant, and solitary bees were notably scarce. Native bees did not appear to be present in sufficient abundance to effect pollination of any of the berry crops, so that managed honeybees (<i>Apis mellifera</i>) are essential for berry production in the Fraser Valley. Reasons for low diversity and abundance of native bees probably included pesticide impact, habitat destruction, competition with managed honeybees, and extended rains during the study period.References
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