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Climate change could turn bumblebees into picky eaters

By Gary Hartley

21 June 2021

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Buff-tailed bumblebee (Bombus terrestris) foraging on borage (Borago officinalis)

Minden Pictures / Alamy

Temperature and humidity changes that influence the way flowers grow can make bumblebees picky eaters – and climate change could make them even more so. This suggests that rising temperatures could have an impact on pollination rates, which are already in decline.

Charlotte Descamps and her colleagues at UCLouvain in Belgium tested how buff-tailed bumblebees (Bombus terrestris) respond to plants grown at different temperatures. They found the bees were four times less likely to visit borage plants grown at 26°C compared with those cultivated at 21°C.…

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