Birds migrate to the arctic tundraimage rights
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Birds migrate to the arctic tundra

The Arctic is no longer the safe haven for nesting birds, warns a new scientific report.

Nests plundered by predators pose a greater threat to breeding birds than they did in the past, as it shows.

This increases the risk of extinction of birds on the Arctic coast, researchers say.

They point to a link with climate change that can change the behavior and habitat of animals, such as foxes stealing eggs.

Prof. Tamás Székely from the Milner Center for Evolution of the University of Bath, UK, described the results as "alarming".

He said that fewer offspring are produced in some bird species and that these populations may not be sustainable in the future.

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Vojtěch Kubelka

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Chicks of the American golden plover

For critically endangered species such as the spoonbill sandpiper, this could be "the last nail in the coffin," he said.

"We see the sad impact of climate change," Prof. Székely told BBC News, "because our data shows that the effects of climate change are involved, leading to increased nesting between these shorebirds – sandpipers, plovers and the like."

Landbirds breed on the ground; Their eggs and offspring are exposed where they can fall prey to predators such as snakes, lizards and foxes.

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Vojtěch Kubelka

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Gray-tailed tattlers in the Arctic expand before migration

The researchers studied over 70 years of data from more than 38,000 nests of 200 species of birds, including 111 shorebirds, at 149 sites on all continents.

They compared data on climate and bird populations and found a link between nesting habitat and climate change globally, but especially in the Arctic.

The daily predators in the Arctic have tripled in the last 70 years. In Europe, the largest part of Asia and North America, a double increase was noted, while in the tropics and the southern hemisphere less change was observed.

Although climate change is considered one of the main drivers, the exact mechanisms are unclear and other factors can not be excluded.

Dr. Vojtěch Kubelka from Charles University in Prague, Czech Republic, and a co-researcher of the study said: "The Arctic, with its recently increased nesting rates, is no longer a safe haven for breeding birds." On the contrary, the Arctic now presents an extensive ecological trap for migratory coastal birds Perspective of nebulization. "

The research is published in the journal Science.

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