Colla Sheila R. - Bumble Bees Of North America An Identification Guide - Paperback RCA He considers the various threats

He considers the various threats to biodiversity their impacts and some of the solutions to the problems

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Colla Sheila R. - Bumble Bees Of North America An Identification Guide - Paperback RCA He considers the various threatsBinding: Paperback Description: A guide to North American bumble bees. It focuses on the molecular research that shows the enormous color variation within species and guides readers through the many confusing convergences between species. Title: Bumble Bees Of North America An Identification Guide Author(s): Colla Sheila R. Publisher: Princeton University Press Barcode: 9780691152226 Pages: 208 Pages, 150 Color Illus. Publication Date: 3 30 2014