'The Arctic is the bellwether of climate change.' Seals and whales in the Arctic are shifting their feeding patterns - study
The rapid pace of climate change is rendering genetic adaptation"unfeasible," so seals and whales in the Arctic are evolving new behavioural and dietary patterns which could determine whether their species survive, a new study finds.
The research focused on the area around Svalbard, northwest of Norway, which is experiencing rapid impacts from climate change and particularly a "large collapse in sea-ice conditions in 2006 that has continued to the present day," said lead researcher Charmain Hamilton. "With the rapid pace of change rendering genetic adaptation unfeasible," they reasoned that behavioural and dietary changes "will likely be the first observable responses within ecosystems."
But ringed seals now spend "significantly higher proportions of time near tidal glacier fronts" while the white whales had the opposite response and had moved elsewhere to look for food. Seals in contrast stuck with their old diet, but appeared to spend more time searching for the food at the glacier fronts.
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