Mar 082018

Huge “mega-colonies” of penguins have been discovered near the peninsula, hosting more than 1.5 million birds.

Researchers say it shows the area is a vital refuge from climate change and human activities and should be protected by a vast new marine wildlife reserve currently under consideration.

The huge numbers of were found on the Danger Islands in the Weddell Sea, on the east side of the Antarctic Peninsula.

Adélie penguins are one of two true Antarctic penguins, and they are threatened by a changing climate.Photograph by Cristina Mittermeier, National Geographic Creative

It is a difficult place to reach and has seldom been visited.

But scientists, prompted by satellite images, mounted an expedition and used on-the-ground counts and aerial photography from drones to reveal 751,527 pairs of penguins.

Aerial footage revealed an enormous breeding colony of Adélie penguins in the Danger Islands. Photograph: Thomas Sayre-McCord/WHOI/MIT

The researchers then examined satellite images going back to 1959 and believe the colony has been stable over that time. In contrast, Adélie colonies to the west of the Antarctic Peninsula, where the and human activity are much greater, are in decline.

“This was an incredible experience, finding and counting so many penguins,” said Tom Hart, at the University of Oxford and part of the international research team. Its report, Survey of Adélie Penguin Mega-colonies Reveals the Danger Islands as a Seabird Hotspot, is published in the journal Scientific Reports.

The researchers uses drone footage to calculate the number of penguins. Photograph: Rachael Herman/Stony Brook University/Louisiana State University

Michael Polito, at Louisiana State University and also part of the team, said: “I was amazed by the sheer number of Adélie penguins I saw. The water around the island boiled with penguins.”

Hart said: “The size of these colonies makes them regionally important and makes the case for expanding the proposed Weddell Sea Marine Protected Area (MPA) to include the Danger Islands. More than that, I think it highlights the need for better protection of the west Antarctic Peninsula, where we are seeing declines.”

Rod Downie, at WWF, said: “This exciting discovery shows us just how much more there still is to learn about this amazing and iconic species of the ice. But it also reinforces the urgency to protect Antarctic waters from the dual threats of overfishing and climate change.”

The proposed MPA is huge – 1.8m sq km or five times the size of Germany. It would ban all fishing in a vast area of the Weddell Sea and around the Antarctic Peninsula, safeguarding killer whales, seals and blue whales, as well as penguins that rely on the krill targeted by fishing ships. The MPA already has the support of several countries, including the UK, and will go before a conference of the Antarctic nations in October.

The discovery of the mega-colonies is a major development for polar scientists – and welcome good news. In October, they reported that just two chicks had survived from a colony of 40,000 at Petrel Island, a few thousand kilometres west of the Antarctic peninsula.

Other penguins are also facing an uncertain future. On Monday, researchers warned that king penguins could almost disappear from Antarctica by the end of the century unless climate change is curbed.

This article was first published by The Guardian on 02 Mar 2018.


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This is Amazing 1.5 million penguins. Wow!!

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