The rusty-patched bumblebee, once common in the United States, has declined from about 90% of its former range. Researchers conducted the first range-wide genetic study of the endangered species to inform recovery efforts.
A team of researchers has uncovered alarming trends in the first range-wide genetic study of an endangered bee species. The study, led by Colorado State University and published in the, will inform conservation and recovery efforts for the rusty-patched bumblebee -- a species that was once common in the United States but has declined from about 90% of its historic range.
The outlook is dire for remaining populations of this important pollinator, according to the in-depth genetic examination by a large team of collaborators, including federal and state agencies, universities, nonprofits and consultants. Analysis revealed three genetically distinct populations among rusty-patched bumblebees -- in the upper Midwest, central Midwest and Appalachians -- that will need to be handled differently for potential recovery efforts. Understanding population differentiation is key for captive rearing programs because bees from different populations might not be genetically compatible or might not survive once they're released into the wild.
Decline of the rusty-patched bumblebee could be a harbinger of die-offs of other species that were once common. "Numerous partners recognized the importance of collecting these data, and we thank them for their contributions," Smith said. A detailed, high-resolution map of the rusty patched bumble bee's genome has been released, offering new approaches for bringing the native pollinator back from the danger of extinction. Putting ...
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