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Tag: bumble bees

Vosnesensky bumble bee (Bombus vosnesenskii)

New Study Revisits 2013 Pesticide Bee Kill in Oregon

In June 2013, a pesticide application on ornamental trees in a shopping-center parking lot in Wilsonville, Oregon, led to the largest documented mass fatality of bumble bees in North America. A new analysis of the incident estimates more than 100,000 bees from nearly 600 colonies were killed, which researchers cite as a cautionary tale about the dangers of pesticides to native bee populations.

corbiculate bees

New Research Deepens Mystery About Evolution of Bees’ Social Behavior

A new study has mounted perhaps the most intricate, detailed look ever at the diversity in structure and form of bees, offering new insights in a long-standing debate over how complex social behaviors arose in certain branches of bees' evolutionary tree. The report offers strong evidence that complex social behavior developed just once in pollen-carrying bees, rather than twice or more, separately, in different evolutionary branches—but researchers say the case is far from closed.

Honey Bee

Even Moderate Drought Conditions are Bad for Bees

A new study finds that reduced water availability—even if not quite drought conditions—lessens the quality of floral resources for honey bees and bumble bees, in turn negatively affecting their survival and reproduction rates.

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