Zavodovski Island loses title of world's largest penguin colony
One Turn followed this story across 2 editions, from Zavodovski Island, South Sandwich Islands on October 7, 2026. Newest first.
Chinstrap penguins feed mainly on Antarctic krill. Zavodovski, a volcanic island in the South Sandwich chain, long hosted the largest known penguin colony.
The British Antarctic Survey reported that Zavodovski Island has lost more than 500,000 chinstrap penguins since 2011. Warming waters are reducing access to krill, the researchers said.
Why it matters: The collapse signals how ocean warming is disrupting the Antarctic food web.
The British Antarctic Survey reported that Zavodovski Island has lost more than 500,000 chinstrap penguins since 2011, ending its status as the world's largest penguin colony. Warming waters are reducing the penguins' access to Antarctic krill.
Why it matters: The collapse illustrates how ocean warming is disrupting the krill-based food web of the Southern Ocean.