News tagged with bee colony

Nation's beekeepers lost 44 percent of bees in 2015-16

Beekeepers across the United States lost 44 percent of their honey bee colonies during the year spanning April 2015 to April 2016, according to the latest preliminary results of an annual nationwide survey. Rates of both ...

dateMay 10, 2016 in Ecology
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Low mortality of Dutch honeybee colonies this winter

Last winter saw the lowest winter mortality of bee colonies for many years. While the loss rate was still around 20% in 2011, it fell below 10% over the last two years and this year was just 6.5%. Winter mortality in the ...

dateApr 25, 2016 in Ecology
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The complex causes of worldwide bee declines

Over the past two decades, bee declines worldwide have drawn international attention. Managed honey bee (Apis mellifera) colonies decreased by 25% over 20 years in Europe and 59% over 58 years in North America, and many bumble ...

dateJan 12, 2016 in Plants & Animals
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Common insecticide may not harm bumble bees

Investigators have found no effect of an insecticide called thiamethoxam on bumble bees that forage on flowering winter oilseed rape. Using realistic field conditions, the researchers treated seeds of oilseed rape with the ...

dateDec 22, 2015 in Ecology
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