The planet's largest king penguin colony is in France’s Ile aux Cochons (between the tip of Africa and Antartica). Henri Weimerskirch, an ecologist at the Centre for Biological Studies in France, first seen the colony in the year 1982. The population of King Penguin on the colony has decreased by 90% in three decades. Last data shows nearly two million flightless birds on this colony. A study published in Antarctic Science shows that the population of the king penguin has decreased and reached around 2,00,000.
Researches are presuming that global warming, lack of food could be the possible reason, but no concrete finding have come out. Mr. Weismerskirch told that in 1997, a strong El Nino warmed the Southern Indian Ocean which causes fish and squid to temporarily push toward South. King Penguin generally depends on fish and squids, but this displacement of fish and squids affect their survival. These species do not migrate because of unavailability of suitable islands within that range.
Along with Warming and lack of food, overcrowding could be one of the reasons behind the decline in population at Ile aux Cochon Colony.
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