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TWO NEW STUDIES INDICATE A VERY TOUGH MODERN LIFE FOR BEES.

First this bad bee news: “A Purdue University study shows that honeybees collect the majority of their pollen from plants other than crops, even in areas dominated by corn and soybeans, and that pollen is consistently contaminated with a host of agricultural and urban pesticides throughout the growing season.”
Then there’s the new research published by the Royal Society
(http://rspb.royalsocietypublishing.org/cont…/…/1828/20160414) which confirms that because of rising atmospheric CO2 levels, the pollen protein concentration of bee-critical Fall-food source Canada Goldenrod has experienced a steep decline compared with an 1842 baseline.
The Goldenrod decline is also consistent with well-documented declines in the nutritional content of important agricultural food crops, also attributable to rising CO2 levels.
What we do on land we control – plus where we spend our food dollars – therefore has significant impact not only on bees but also on ourselves as a species. Jim

http://www.growingproduce.com/vegetables/honeybees-collect-urban-pesticides-via-non-crop-plants/