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Britain's bumblebee population is under threat in a crisis that could wipe out entire species and have a devastating knock-on effect on agriculture, scientists say.
The furry yellow-and-black creatures, essential for pollination, are being killed off by pesticides and agricultural intensification, which have cut back on hedgerows and removed their source of food.
"There just aren't enough flowers around," Professor Dave Goulson, the director of the Bumblebee Conservation Trust at the University of Stirling in Scotland, said on Monday.
"If we knock out an important group like bumblebees, it can have a huge knock-on impact on other things, such as the pollination of important crops and flowers."
Britain once had around 25 native species of bumblebee, but three of those have been wiped out in the past 50 years and 10 more are now "severely threatened," Goulson said.
"There are two that are teetering on the edge of extinction and could be gone in five to 10 years quite easily," he said.
The loss of species could lead to sweeping changes in Britain's countryside, with many rare plants disappearing and the production of crops such as raspberries, oil-seed rape, runner beans and broad beans sharply curtailed.
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