Map: Wild Bee Abundance Across the United States (IMAGE)
Caption
The first national study to map US wild bees suggests they're disappearing in many of the country's most important farmlands, including California's Central Valley, the Midwest's corn belt, and the Mississippi River valley. (Relatively low abundances are shown here in yellow; higher abundances in blue.) If losses of these crucial pollinators continue, the new nationwide assessment indicates that farmers will face increasing costs, and that the problem may even destabilize the nation's crop production. The findings were published Dec. 21, 2015, in the Proceedings of the National Academy of Sciences and led by scientists at the University of Vermont's Gund Institute for Ecological Economics.
Credit
PNAS (DOI number 10.1073/pnas.1517685113)
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