Threat management priorities for conserving Antarctic biodiversity

Jasmine R. Lee, Aleks Terauds, Josie Carwardine, Justine D. Shaw, Richard A. Fuller, Hugh P. Possingham, Steven L. Chown, Peter Convey, Neil Gilbert, Kevin A. Hughes, Ewan McIvor, Sharon A. Robinson, Yan Ropert-Couder, Dana M. Bergstrom, Elisabeth M. Biersma, Claire Christian, Don A. Cowan, Yves Frenot, Stephanie Jenouvrier, Lisa KelleyMichael J. Lee, Heather J. Lynch, Birgit Njåstad, Antonio Quesada, Ricardo M. Roura, E. Ashley Shaw, Damon Stanwell-Smit, Megumu Tsujimoto, Diana H. Wall, Annick Wilmotte, Iadine Chadès

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Antarctic terrestrial biodiversity faces multiple threats, from invasive species to climate change. Yet no large-scale assessments of threat management strategies exist. Applying a structured participatory approach, we demonstrate that existing conservation efforts are insufficient in a changing world, estimating that 65% (at best 37%, at worst 97%) of native terrestrial taxa and land-associated seabirds are likely to decline by 2100 under current trajectories. Emperor penguins are identified as the most vulnerable taxon, followed by other seabirds and dry soil nematodes. We find that implementing 10 key threat management strategies in parallel, at an estimated present-day equivalent annual cost of US$23 million, could benefit up to 84% of Antarctic taxa. Climate change is identified as the most pervasive threat to Antarctic biodiversity and influencing global policy to effectively limit climate change is the most beneficial conservation strategy. However, minimising impacts of human activities and improved planning and management of new infrastructure projects are cost-effective and will help to minimise regional threats. Simultaneous global and regional efforts are critical to secure Antarctic biodiversity for future generations.

Original languageEnglish
Article numbere3001921
JournalPLoS biology
Issue number12
Publication statusPublished - 2022 Dec

ASJC Scopus subject areas

  • General Neuroscience
  • General Biochemistry,Genetics and Molecular Biology
  • General Immunology and Microbiology
  • General Agricultural and Biological Sciences


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