A remote South Atlantic island is finally recovering from a century of invasive pests

Nature · Published 30 September 2026 Swipe more like this →

In short: South Georgia, a mountainous, snow-covered island in the South Atlantic, was once a hub for whaling and a playground for introduced species. After decades of ecological damage caused by rats and reindeer, intensive conservation efforts have transformed the island, allowing its unique, endemic bird populations to finally begin their recovery.

Located 800 miles east-southeast of the Falkland Islands, South Georgia is a rugged, 1,450-square-mile territory defined by its harsh Antarctic climate. Rising to 9,625 feet at Mount Paget, the island is largely covered in perpetual snow, supporting only hardy tundra vegetation. While it has no indigenous human population, it has served as a base for explorers like Sir Ernest Shackleton, who crossed the island in 1916 and is buried at the former whaling station of Grytviken.

The island's ecosystem suffered significantly due to human activity. Norwegian whalers introduced reindeer shortly after 1900 for food and sport, while sealing and whaling vessels inadvertently brought Norway rats to the island. These invasive rodents devastated native bird populations, nearly wiping out the endemic South Georgia pipit and the South Georgia pintail. By 2013, the reindeer population had grown to 3,500, causing further damage to the island's flora, leading to a government-led cull that removed the animals entirely.

Conservationists achieved a major victory in 2018 when the South Georgia Heritage Trust declared the island free of rats following a multiyear extermination campaign. This intervention has already shown positive results, with researchers observing clear increases in the populations of the South Georgia pipit and other native birds like the snowy sheathbill. Today, the island is managed as a British overseas territory, with a small number of scientists at research stations serving as its only permanent inhabitants.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• The unexpected ecological crisis of a species rebounding from the brink
• A remote mountain range serves as a nursery for the Antarctic
• Gough Island is a remote volcanic sanctuary fighting to save its unique seabird population.
• A remote, icy archipelago in the South Atlantic remains a point of intense geopolitical friction.
• A remote subantarctic island hosts the world's loneliest tree and a history of extremes.
• New Zealand’s spine holds seventeen peaks above three thousand metres
• The Sun's magnetic heart beats in an 11-year rhythm, but it is rarely precise.
• Why the Southern Hemisphere is more than just a mirror of the north
• Yemen’s alien island keeps a third of its plants found nowhere else
• Why the Italian South and North were once considered two different worlds
• The fish that navigates by sensing Earth's magnetic field
• Why Southern Min dialects preserve linguistic fossils from the ancient Han dynasty

More in Physical geography · More in Nature · Latest · A–Z · All topics