Migrating is not enough for modern planktonic foraminifera in a changing ocean

• 成果类型: Article
• 署名作者: Chaabane, Sonia; de Garidel-Thoron, Thibault; Meilland, Julie; Sulpis, Olivier; Chalk, Thomas B.; Brummer, Geert-Jan A.; Mortyn, P. Graham; Giraud, Xavier; Howa, Helene; Casajus, Nicolas; Kuroyanagi, Azumi; Beaugrand, Gregory; Schiebel, Ralf
• 署名单位: INRAE; Institut de Recherche pour le Developpement (IRD); Aix-Marseille Universite; Centre National de la Recherche Scientifique (CNRS); Max Planck Society; University of Bremen; Utrecht University; Royal Netherlands Institute for Sea Research (NIOZ); Autonomous University of Barcelona; Autonomous University of Barcelona; Universite d'Angers; Centre National de la Recherche Scientifique (CNRS); Tohoku University; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU); Universite de Lille; Universite du Littoral-Cote-d'Opale
• 刊物名称: Nature
• ISSN/ISSBN: 0028-4890
• DOI: 10.1038/s41586-024-08191-5
• 发表日期: 2024-12-12
• 页码: 390-+
• 关键词: climate-change; acidification; habitat; calcification; biodiversity; zooplankton; community; impacts

摘要

Rising carbon dioxide emissions are provoking ocean warming and acidification(1,2), altering plankton habitats and threatening calcifying organisms(3), such as the planktonic foraminifera (PF). Whether the PF can cope with these unprecedented rates of environmental change, through lateral migrations and vertical displacements, is unresolved. Here we show, using data collected over the course of a century as FORCIS4 global census counts, that the PF are displaying evident poleward migratory behaviours, increasing their diversity at mid- to high latitudes and, for some species, descending in the water column. Overall foraminiferal abundances have decreased by 24.2 +/- 0.1% over the past eight decades. Beyond lateral migrations(5), our study has uncovered intricate vertical migration patterns among foraminiferal species, presenting a nuanced understanding of their adaptive strategies. In the temperature and calcite saturation states projected for 2050 and 2100, low-latitude foraminiferal species will face physicochemical environments that surpass their current ecological tolerances. These species may replace higher-latitude species through poleward shifts, which would reduce low-latitude foraminiferal diversity. Our insights into the adaptation of foraminifera during the Anthropocene suggest that migration will not be enough to ensure survival. This underscores the urgent need for us to understand how the interplay of climate change, ocean acidification and other stressors will impact the survivability of large parts of the marine realm.