气候变化领域集成服务门户(CCPortal): Thermal niches of planktonic foraminifera are static throughout glacial-interglacial climate change

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DOI	10.1073/pnas.2017105118
	Thermal niches of planktonic foraminifera are static throughout glacial-interglacial climate change
	Antell G.S.; Fenton I.S.; Valdes P.J.; Saupe E.E.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:18
英文摘要	Abiotic niche lability reduces extinction risk by allowing species to adapt to changing environmental conditions in situ. In contrast, species with static niches must keep pace with the velocity of climate change as they track suitable habitat. The rate and frequency of niche lability have been studied on human timescales (months to decades) and geological timescales (millions of years), but lability on intermediate timescales (millennia) remains largely uninvestigated. Here, we quantified abiotic niche lability at 8-ka resolution across the last 700 ka of glacial-interglacial climate fluctuations, using the exceptionally well-known fossil record of planktonic foraminifera coupled with Atmosphere-Ocean Global Climate Model reconstructions of paleoclimate. We tracked foraminiferal niches through time along the univariate axis of mean annual temperature, measured both at the sea surface and at species' depth habitats. Species' temperature preferences were uncoupled from the global temperature regime, undermining a hypothesis of local adaptation to changing environmental conditions. Furthermore, intraspecific niches were equally similar through time, regardless of climate change magnitude on short timescales (8 ka) and across contrasts of glacial and interglacial extremes. Evolutionary trait models fitted to time series of occupied temperature values supported widespread niche stasis above randomly wandering or directional change. Ecotype explained little variation in species-level differences in niche lability after accounting for evolutionary relatedness. Together, these results suggest that warming and ocean acidification over the next hundreds to thousands of years could redistribute and reduce populations of foraminifera and other calcifying plankton, which are primary components of marine food webs and biogeochemical cycles. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Calcifying plankton; Climate change; Ecological niche conservatism; Macroecology; Macroevolution
语种	英语
scopus关键词	article; atmosphere; biogeochemical cycle; climate change; ecological niche; ecotype; food web; foraminifer; fossil; global climate; habitat; human; interglacial; local adaptation; nonhuman; ocean acidification; paleoclimate; planktonic foraminifera; time series analysis; warming
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238583
作者单位	Department of Earth Sciences, University of Oxford, Oxford, OX1 3AN, United Kingdom; School of Geographical Sciences, University of Bristol, Bristol, BS8 1SS, United Kingdom
推荐引用方式 GB/T 7714	Antell G.S.,Fenton I.S.,Valdes P.J.,et al. Thermal niches of planktonic foraminifera are static throughout glacial-interglacial climate change[J],2021,118(18).
APA	Antell G.S.,Fenton I.S.,Valdes P.J.,&Saupe E.E..(2021).Thermal niches of planktonic foraminifera are static throughout glacial-interglacial climate change.Proceedings of the National Academy of Sciences of the United States of America,118(18).
MLA	Antell G.S.,et al."Thermal niches of planktonic foraminifera are static throughout glacial-interglacial climate change".Proceedings of the National Academy of Sciences of the United States of America 118.18(2021).