Antarctic emperor penguins and global warming


This video is called Emperor penguins – The Greatest Wildlife Show on Earth – BBC.

From Wildlife Extra:

Antarctic emperor penguins may be adapting to warmer temperatures

January 2014: Antarctic emperor penguins could be capable of adapting to environmental change declares a new study. Four colonies were studied by scientists from the British Antarctic Survey (BAS), the Australian Antarctic Division and the Scripps Institution of Oceanography at UC San Diego in California.

Their results suggest that unexpected breeding behaviour may be a sign that the birds are adapting to climate change. It was found that when the sea ice formed later than usual penguin colonies moved from their traditional breeding grounds to the much thicker floating ice shelves that surround the continent. This is positive news for the birds’ future.

At the moment the emperor penguins’ reliance on sea ice as a breeding platform and concern about changing patterns of sea ice have both led to the species being designated as ‘near threatened’ by the IUCN Red List.

Barbara Wienecke of the Australian Antarctic Division said, “These new findings are an important step forward in helping us understand what the future may hold for these animals, however, we cannot assume that this behaviour is widespread in other penguin populations. The ability of these four colonies to relocate to a different environment – from sea ice to ice shelf – in order to cope with local circumstances, was totally unexpected. We have yet to discover whether or not other species may also be adapting to changing environmental conditions.”

Lead author, Peter Fretwell of BAS said, “Satellite observations captured of one colony in 2008, 2009 and 2010 show that the concentration of annual sea ice was dense enough to sustain a colony. But this was not the case in 2011 and 2012 when the sea ice did not form until a month after the breeding season began. During those years the birds moved up onto the neighbouring floating ice shelf to raise their young.

“What’s particularly surprising is that climbing up the sides of a floating ice shelf – which at this site can be up to 30 metres high – is a very difficult manoeuvre for emperor penguins. Whilst they are very agile swimmers they have often been thought of as clumsy out of the water.”

See also here.

Why does the Antarctic hold such allure for those who go there? Alok Jha speaks to explorers drawn by the power of the ice, the extraordinary wildlife, the adventure and the isolation: here.

How many emperor penguins live in the Ragnhild colony in Antarctica? Here.

Like an ice age radiator, heat from volcanoes helped Antarctica’s plants and bugs survive Earth’s glacial periods, scientists think based on the result of a new study: here.

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3 thoughts on “Antarctic emperor penguins and global warming

  1. Pingback: Antarctic emperor penguins and global warming |...

  2. Pingback: Do British children know marine animals? | Dear Kitty. Some blog

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