USA: USDA, 2012. — 144 p.Bumble bees are among the most important and conspicuous of native pollinators, both for wildflowers and agriculture, yet they are not well known by non-scientists. This is in part because there have not been accessible field guides for identifying them. This situation was recently remedied for the eastern U.S., with the publication of Bumble Bees of the Eastern United States. Now residents of the western U.S. have access to a similarly valuable resource, with the appearance of this new guide to Bumble Bees of the Western United States. Bumble bees have been the subject of many important ecological studies in the western U.S., including research on foraging behavior, floral resource competition, and pollination. They have also provided some of the first information about how altitudinal distributions of animals are changing due to the changing climate (moving up hundreds of meters in the Colorado Rocky Mountains since the 1970s). This guide will be a valuable resource for scientists conducting these kinds of research involving bumble bees.
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