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Survey Of The Critically Endangered Rusty Patched Bumble Bee (Bombus Affinis) At Midewin National Tallgrass Prairie, (Usda-Fs) Ill., Anne Hughes
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Bumble bees (Bombus spp.) are important pollinators of many plants around the world. Recent declines in populations and range(s) of Bombus spp. are attributed to habitat loss, pesticide use and invasive pathogens. Four species have undergone notable declines in Illinois, with one, the rusty patched bumble bee (B. affinis), recently being listed as endangered under the Endangered Species Act. Prairie restoration over the past 20 years at Midewin National Tallgrass Prairie, a 20,000 acre preserve near Wilmington, IL, has resulted in much florally rich prairie habitat, yet no comprehensive survey for B. affinis has been conducted, despite known populations in …