
"In the past two decades, the European Union has spent €41 billion on agri-environment schemes, which aim to improve the rural landscape health and are required for all EU-member states," says Margaret Couvillon of the Laboratory of Apiculture and Social Insects at the University of Sussex. "However, there is little evidence evaluating these schemes. Our work uses a novel source of data—the honeybee, an organism that itself can benefit from a healthy rural landscape—to evaluate not only the environment, but also the schemes used to manage that environment."
Couvillon and her colleagues, led by Francis Ratnieks, recorded and decoded the waggle dances of bees in three hives over a two-year period. Bees dance to tell their fellow bees where to find the good stuff: the best nectar and pollen. The angle of their dances conveys information about the direction of resources while the duration conveys distance. Researchers can measure those dance characteristics in a matter of minutes with a protractor and timer.
...The researchers were surprised to find that Organic Entry Level agri-environment schemes were the least frequented by bees. According to Couvillon, it may be that the regular mowing required initially to discourage certain plants from growing in those plots might leave few wildflowers for bees.
The study shows that honeybees can serve as bioindicators to monitor large land areas and provide information relevant to better environmental management, the researchers say. It also gives new meaning to the term "worker bee."...
Shot of a honey bee by Rebhu, Wikimedia Commons, under the Creative Commons 3.0 license
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