Bumble Bee und America Person-Info 

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Help Save the Endangered Rusty Patched Bumble BeeWisconsin (.gov)

dnr.wisconsin.gov
The rusty patched bumble bee (Bombus affinis) is one of 46 bumble bee species found in North America and one of 20 in. Wisconsin. Bumble bees are important.

Climate change and pesticides imperil a once common ...United States Geological Survey (.gov)

www.usgs.gov
— BOZEMAN, Mont. — The western bumble bee was once common in western North America, but increasing temperatures, drought, and pesticide use ...
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