Map: US Wild Bees: 139 Counties at Risk (IMAGE)
Caption
A new study of wild bees identifies 139 counties in key agricultural regions of California, the Pacific Northwest, the upper Midwest and Great Plains, west Texas, and the southern Mississippi River valley that have the most worrisome mismatch between falling wild bee supply and rising crop pollination demand. The study and map were published in the Proceedings of the National Academy of Sciences, and led by scientists at the University of Vermont.
Credit
PNAS (DOI: 10.1073/pnas.1517685113)
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