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Towards a new paleotemperature proxy from reef coral occurrences

Please always quote using this URN: urn:nbn:de:bvb:29-opus4-95548
  • Global mean temperature is thought to have exceeded that of today during the last interglacial episode (LIG, ~ 125,000 yrs b.p.) but robust paleoclimate data are still rare in low latitudes. Occurrence data of tropical reef corals may provide new proxies of low latitude sea-surface temperatures. Using modern reef coral distributions we developed a geographically explicit model of sea surface temperatures. Applying this model to coral occurrence data of the LIG provides a latitudinal U-shaped pattern of temperature anomalies with cooler than modern temperatures around the equator and warmer subtropical climes. Our results agree with previously published estimates of LIG temperatures andGlobal mean temperature is thought to have exceeded that of today during the last interglacial episode (LIG, ~ 125,000 yrs b.p.) but robust paleoclimate data are still rare in low latitudes. Occurrence data of tropical reef corals may provide new proxies of low latitude sea-surface temperatures. Using modern reef coral distributions we developed a geographically explicit model of sea surface temperatures. Applying this model to coral occurrence data of the LIG provides a latitudinal U-shaped pattern of temperature anomalies with cooler than modern temperatures around the equator and warmer subtropical climes. Our results agree with previously published estimates of LIG temperatures and suggest a poleward broadening of the habitable zone for reef corals during the LIG.show moreshow less

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Metadaten
Author:Andreas Lauchstedt, John M. Pandolfi, Wolfgang Kiessling
URN:urn:nbn:de:bvb:29-opus4-95548
DOI:https://doi.org/10.1038/s41598-017-10961-3
Title of the journal / compilation (English):Scientific Reports
Document Type:Article
Language:English
Year of Completion:2017
Embargo Date:2018/03/14
Publishing Institution:Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Release Date:2018/03/15
Tag:Ecological modelling; Palaeoclimate
SWD-Keyword:-
Volume:7
Original publication:Scientific Reports 7 (2017). <https://www.nature.com/articles/s41598-017-10961-3>
Institutes:Naturwissenschaftliche Fakultät
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften
open_access (DINI-Set):open_access
Collections:Universität Erlangen-Nürnberg / Von der FAU geförderte Open Access Artikel / Von der FAU geförderte Open Access Artikel 2017
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International