Study: American, European bumblebees feeling climate sting
NEW YORK - A new study says climate change is shrinking the geographic range of many bumblebee species in North America and Europe, which could put them at risk of dying out.
Researchers found that a geographic squeeze occurred on both continents over the past 40 years. While the northern borders of each species' territory remained about the same on average, the southern borders generally moved northward.
That shift was most pronounced for species in the southern parts of the study areas. In North America, the study extended from the southern United States to northern Alaska.
Researchers said the shrinkage in range implies that the populations are declining.
The study looked for changes between 1974 and 2010. Results were released Thursday by the journal Science.
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