Response of large benthic foraminifera to climate and local changes: Implications for future carbonate production

dc.contributor.authorNarayan, Gita R.
dc.contributor.authorReymond, Claire E.
dc.contributor.authorStuhr, Marleen
dc.contributor.authorDoo, Steve
dc.contributor.authorSchmidt, Christiane
dc.contributor.authorMann, Thomas
dc.contributor.authorWestphal, Hildegard
dc.date.accessioned2023-01-26T20:12:18Z
dc.date.available2023-01-26T20:12:18Z
dc.date.copyright2021en_US
dc.date.issued2022
dc.description.abstractLarge benthic foraminifera are major carbonate components in tropical carbonate platforms, important carbonate producers, stratigraphic tools and powerful bioindicators (proxies) of environmental change. The application of large benthic foraminifera in tropical coral reef environments has gained considerable momentum in recent years. These modern ecological assessments are often carried out by micropalaeontologists or ecologists with expertise in the identification of foraminifera. However, large benthic foraminifera have been under-represented in favour of macro reef-builders, for example, corals and calcareous algae. Large benthic foraminifera contribute about 5% to modern reef-scale carbonate sediment production. Their substantial size and abundance are reflected by their symbiotic association with the living algae inside their tests. When the foraminiferal holobiont (the combination between the large benthic foraminifera host and the microalgal photosymbiont) dies, the remaining calcareous test renourishes sediment supply, which maintains and stabilizes shorelines and low-lying islands. Geological records reveal episodes (i.e. late Palaeocene and early Eocene epochs) of prolific carbonate production in warmer oceans than today, and in the absence of corals. This begs for deeper consideration of how large benthic foraminifera will respond under future climatic scenarios of higher atmospheric carbon dioxide (pCO2) and to warmer oceans. In addition, studies highlighting the complex evolutionary associations between large benthic foraminifera hosts and their algal photosymbionts, as well as to associated habitats, suggest the potential for increased tolerance to a wide range of conditions. However, the full range of environments where large benthic foraminifera currently dwell is not well-understood in terms of present and future carbonate production, and impact of stressors. The evidence for acclimatization, at least by a few species of well-studied large benthic foraminifera, under intensifying climate change and within degrading reef ecosystems, is a prelude to future host–symbiont resilience under different climatic regimes and habitats than today. This review also highlights knowledge gaps in current understanding of large benthic foraminifera as prolific calcium carbonate producers across shallow carbonate shelf and slope environments under changing ocean conditions.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipAuthors MS and TM would like acknowledge fellowship support from the Minerva Stiftung and Deutsche Forschungsgemeinschaft (MA 6967/2-1). Open Access funding enabled and organized by Projekt DEAL.en_US
dc.identifier.citationNarayan, G. R., Reymond, C. E., Stuhr, M., Doo, S., Schmidt, C., Mann, T., & Westphal, H. (2022). “Response of large benthic foraminifera to climate and local changes: Implications for future carbonate production.” Sedimentology, 69(1), 121- 161. https://doi.org/10.1111/sed.12858en_US
dc.identifier.urihttps://doi.org/10.1111/sed.12858
dc.identifier.urihttp://hdl.handle.net/1828/14705
dc.language.isoenen_US
dc.publisherResponse of large benthic foraminifera to climate and local changes: Implications for future carbonate productionen_US
dc.subjectBioindicatorsen_US
dc.subjectcarbonate engineersen_US
dc.subjectclimate changeen_US
dc.subjectenvironmental stressorsen_US
dc.subjectocean acidificationen_US
dc.subjectphotosymbiontsen_US
dc.subjectsea-level riseen_US
dc.subjectwater qualityen_US
dc.titleResponse of large benthic foraminifera to climate and local changes: Implications for future carbonate productionen_US
dc.typeArticleen_US

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