Study of penguin colonies at Antarctic island shows decline

Results from a 21-year study into the breeding success of gentoo penguins at a well-known tourist site in Antarctica, reveal a 25 percent reduction in breeding pairs and a decrease of between 54-60 percent in chick numbers. Reporting this week in the journal Biodiversity and Conservation, researchers from British Antarctic Survey (BAS) say that the causes of the local decline is unclear.

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