Antarctica's wilderness fails to capture continent's biodiversity

Nature
Rachel I. LeihySteven L. Chown

Abstract

Recent assessments of Earth's dwindling wilderness have emphasized that Antarctica is a crucial wilderness in need of protection1,2. Yet human impacts on the continent are widespread3-5, the extent of its wilderness unquantified2 and the importance thereof for biodiversity conservation unknown. Here we assemble a comprehensive record of human activity (approximately 2.7 million records, spanning 200 years) and use it to quantify the extent of Antarctica's wilderness and its representation of biodiversity. We show that 99.6% of the continent's area can still be considered wilderness, but this area captures few biodiversity features. Pristine areas, free from human interference, cover a much smaller area (less than 32% of Antarctica) and are declining as human activity escalates6. Urgent expansion of Antarctica's network of specially protected areas7 can both reverse this trend and secure the continent's biodiversity8-10.

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Citations

Oct 20, 2020·Nature·Carolyn J HoggCassandra M Brooks
May 26, 2021·Nature Ecology & Evolution·Priscilla M WehiKrushil Watene
Nov 5, 2021·Proceedings of the National Academy of Sciences of the United States of America·Maximiliano OrtizChris Greening

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