A climate risk index for marine life.

Boyce, Daniel G., Tittensor, Derek P., Garilao, Cristina, Henson, Stephanie, Kaschner, Kristin, Kesner-Reyes, Kathleen, Pigot, Alex, Reyes, Rodolfo B., Reygondeau, Gabriel, Schleit, Kathryn E., Shackell, Nancy L., Sorongon-Yap, Patricia and Worm, Boris (2022) A climate risk index for marine life. Nature Climate Change, 12 (9). pp. 854-862. DOI 10.1038/s41558-022-01437-y.

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Abstract

Climate change is impacting virtually all marine life. Adaptation strategies will require a robust understanding of the risks to species and ecosystems and how those propagate to human societies. We develop a unified and spatially explicit index to comprehensively evaluate the climate risks to marine life. Under high emissions (SSP5-8.5), almost 90% of similar to 25,000 species are at high or critical risk, with species at risk across 85% of their native distributions. One tenth of the ocean contains ecosystems where the aggregated climate risk, endemism and extinction threat of their constituent species are high. Climate change poses the greatest risk for exploited species in low-income countries with a high dependence on fisheries. Mitigating emissions (SSP1-2.6) reduces the risk for virtually all species (98.2%), enhances ecosystem stability and disproportionately benefits food-insecure populations in low-income countries. Our climate risk assessment can help prioritize vulnerable species and ecosystems for climate-adapted marine conservation and fisheries management efforts.

Document Type: Article
Keywords: climate change; biodiversity; fish; resilience
Research affiliation: NOC
OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology
Main POF Topic: PT6: Marine Life
Refereed: Yes
Open Access Journal?: No
Publisher: Nature Research
Date Deposited: 16 Sep 2022 12:25
Last Modified: 16 Sep 2022 12:25
URI: https://oceanrep.geomar.de/id/eprint/57039

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