Other
Patterns of widespread decline in North American
bumble bees
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
(2011)
Sidney A. Cameron, Jeffrey D. Lozier, James P. Strange, Jonathan B. Koch, et al.
Bumble bees (Bombus) are vitally important pollinators of wild plants and agricultural crops worldwide. Fragmentary observations, however, have suggested population ...