Climate Change Good for Mosquitoes, Bad for Caribou
CBC Radio | Posted: September 25, 2015 7:54 PM | Last Updated: September 25, 2015
Mosquitoes may emerge earlier and increase in greater numbers to torment caribou and calves
The destabilizing effects of climate change are expected to benefit some species and disadvantage others. According to new research by Dr. Lauren Culler, a post-doctoral researcher and Arctic ecologist at the Dickey Center for Arctic Study at Dartmouth College in New Hampshire, and her colleagues, Arctic mosquitoes might be one of the winners.
Mosquitoes in the Arctic are notoriously ferocious, swarming maddeningly in their search for a blood meal, and making life a misery for humans and wildlife like caribou. Dr Culler found that warmer winters lead to earlier emergence of the mosquitoes, and may accelerate their growth, development, and boost their populations, which means that more hungry mosquitoes might be around just when caribou are having their calves.
Mosquito attacks can distract mother caribou from foraging, meaning they have less energy and milk for their calves, and there have even been reports that, in particularly bad mosquito seasons, calves have been killed by relentless mosquito attacks.
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