Threat management priorities for conserving Antarctic biodiversity
2022
Lee, Jasmine R. | Terauds, Aleks | Carwardine, Josie | Shaw, Justine, D. | Fuller, Richard A. | Possingham, Hugh | Chown, Steven, L | Convey, Peter | Gilbert, Neil | Hughes, Kevin A. | McIvor, Ewan | Robinson, Sharon A. | Ropert‐coudert, Yan | Bergstrom, Dana, M. | Biersma, Elisabeth M. | Christian, Claire | Cowan, Don A. | Frenot, Yves | Jenouvrier, Stéphanie | Kelley, Lisa | Lee, Michael, J. | Lynch, Heather J. | Njåstad, Birgit | Quesada, Antonio | Roura, Ricardo M. | Shaw, E. Ashley | Stanwell-Smith, Damon | Tsujimoto, Megumu | Wall, Diana, H. | Wilmotte, Annick | Chades, Iadine | School of Biological Sciences [Brisbane] ; The University of Queensland (UQ [All campuses : Brisbane, Dutton Park Gatton, Herston, St Lucia and other locations]) | CSIRO Entomology ; Commonwealth Scientific and Industrial Research Organisation [Australia] (CSIRO) | British Antarctic Survey (BAS) ; Natural Environment Research Council (NERC) | Australian Antarctic Division (AAD) | Securing Antarctica’s Environmental Future, School of Biological Sciences, Monash University | Constantia Consulting Ltd [Christchurch, New Zealand] | University of Wollongong [Australia] | Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) ; La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Antarctic and Southern Ocean Coalition ; Antarctic and Southern Ocean Coalition | Centre for Microbial Ecology and Genomics [Pretoria, South Africa] ; University of Pretoria [South Africa] | Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO) ; Université de Rennes (UR)-Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) ; Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) | Woods Hole Oceanographic Institution (WHOI) | International Association of Antarctica Tour Operators ; International Association of Antarctica Tour Operators | Reel Time Gaming [Australia] | Department of Ecology and Evolution [ NY, USA] ; Stony Brook University [SUNY] (SBU) ; State University of New York (SUNY)-State University of New York (SUNY) | Norwegian Polar Institute | Universidad Autónoma de Madrid (UAM) | Institute of Ecology and Evolution [Oregon, USA] ; University of Oregon | International Association of Antarctica Tour Operators | Faculty of Environment and Information Studies [Kanagawa, Japan] ; Keiō Gijuku Daigaku = Keio University [Tokyo] | Department of Biology and School of Global Environmental Sustainability [CO, USA] ; Colorado State University [Fort Collins] (CSU) | InBios-Centre for Protein Engineering ; Université de Liège = University of Liège = Universiteit van Luik = Universität Lüttich (ULiège)
International audience
Afficher plus [+] Moins [-]anglais. 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.
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