World's largest king penguin colony has declined by 90%
The planet’s largest
colony of king penguins has declined by nearly 90% in three decades,
researchers have warned. The last time
scientists set foot on France’s remote Île aux Cochons – roughly half way
between the tip of Africa and Antarctica – the island was blanketed by 2m of
the penguins, which stand about a metre tall.
But recent satellite
images and photos taken from helicopters show the population has collapsed,
with barely 200,000 remaining, according to a study published in Antarctic
Science. Why the colony
on Île aux Cochons has been so decimated remains a mystery. “It is completely
unexpected, and particularly significant since this colony represented nearly
one third of the king penguins in the world,” said lead author Henri
Weimerskirch, an ecologist at the Centre for Biological Studies in Chize,
France, who first set eyes on the colony in 1982.
Climate change may
play a role. In 1997, a particularly strong El Niño weather event warmed the
southern Indian Ocean, temporarily pushing the fish and squid on which king
penguins depend south, beyond their foraging range. “This resulted in
population decline and poor breeding success for all the king penguin colonies
in the region,” Weimerskirch said... read more: