In her 2006 Masters research for Utah State Olivia Messinger found 643 bee species in the (former) Grand Staircase-Escalante National Monument, in Utah, "the richest bee landscape studied to date." Among her samples were 3340 specimens of Apis mellifera from 150 distinct sites throughout the study area, none of them managed honey bees. It seems clear that honey bees and native bees have no problem coexisting when large-scale apiaries aren't part of the mix.
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