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2017-02-20 17:40:00

The first national study to map US wild bees suggests they're disappearing in many of the country's most important farmlands. Relatively low abundances are shown here in yellow; higher abundances in blue.

Image uploaded by Karen Graham
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News Feb 20, 2017 - Decline of wild bees and the impact on crops tracked with a map
Personal Albums Oct 31, 2013 - Environment