Article
Patterns of widespread decline in North American bumble bees.
Proceedings of the National Academy of Sciences of the United States of America - 11 Jan 2011
Cameron Sydney A, Lozier Jeffrey D, Strange James P, Koch Jonathan B, Cordes Nils, Solter Leellen F, Griswold Terry L
Abstract excerpt
Bumble bees (Bombus) are vitally important pollinators of wild plants and agricultural crops worldwide. Fragmentary observations, however, have suggested population declines in several North American species. Despite rising concern over these observations in the United States, highlighted in a recent National Academy of Sciences report, a national assessment of the geographic scope and possible causal factors of...
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