Exploring the impact of climate change on the global distribution of non‐spinose planktonic foraminifera using a trait‐based ecosystem model

Grigoratou, Maria; Monteiro, Fanny M.; Wilson, Jamie D.; Ridgwell, Andy; Schmidt, Daniela N.

doi:10.1111/gcb.15964

Cited by 11 publications

(10 citation statements)

References 76 publications

(159 reference statements)

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“…ForamEcoGENIE 1.0 accounted for two foraminifera traits, including the feeding behaviour and calcification (Grigoratou et al, 2019(Grigoratou et al, , 2021a. It implemented a predator-prey interaction (𝐺 B pred ,B prey , Eqn.…”

Section: Foramecogenie 10 Descriptionmentioning

confidence: 99%

“…We modified the metabolic cost of calcification defined in Grigoratou et al (2019Grigoratou et al ( , 2021a) by replacing the original reduced maximum growth rate (or specifically maximum grazing rate) with a temperature-dependent respiration loss term. We choose this new loss term over a reduced growth rate because (1) extra respiration is a more biologically realistic cost and (2) a temperature-dependent term helps reduce the low-latitude biomass as observed.…”

Section: Respiration Costmentioning

confidence: 99%

“…5). Like in Grigoratou et al (2019Grigoratou et al ( , 2021a, 𝑚 ! for foraminifera is downscaled by a protection term 𝑃 @ where a lower value of 𝑚 B indicates a higher protection from the foraminifera test against viral and bacterial infections.…”

Section: A Mortality Protectionmentioning

confidence: 99%

“…Planktic foraminifera produce organic carbon in the subsurface water column (Salter et al, 2014) and sequester tests of inorganic carbon into the deep oceans (Schiebel, 2002). In the model we estimate organic carbon flux and approximate calcite export using an empirical converting factor (Schiebel and Movellan, 2012) as previous model implementations (Grigoratou et al, 2021a).…”

Section: Approximating Foraminifera Carbon Production and Exportmentioning

confidence: 99%

“…Therefore, the comparison of our model against plankton tow data was limited by the low temporal resolution of the data (Figure 9). The data is not only undersampled in limited regions (North Atlantic Ocean, Caribbean, Sea Arabian Sea) but also biased towards specific sampling seasons, generated using different mesh size and water depth as discussed in the first application of ForamEcoGENIE (Grigoratou et al, 2021a).…”

Section: Seasonal Variations Of Foraminifera Living Biomass and Poc E...mentioning

confidence: 99%

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ForamEcoGENIE 2.0: Incorporating symbiosis and spine traits into a trait-based global planktic foraminifera model

Ying

Monteiro

Wilson

et al. 2022

Preprint

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Abstract. Planktic foraminifera are major marine calcifiers in the modern ocean regulating the marine inorganic carbon pump and generating marine fossil archives of past climate change. Some planktic foraminifera evolved spine and symbiosis, increasing functional trait diversity and expanded their ecological niches. Here we incorporate symbiosis and spine traits into the ForamEcoGENIE model, a trait-based model focusing on functional trait rather than individual species, to enable us to study the importance of foraminifera biodiversity in the palaeoceanographic environment. We calibrated the modelled new traits using Latin Hypercube Sampling. We identified the best model run from an ensemble of 1200 runs compared with observations from global core-top, sediment trap, and plankton nets. The model successfully captures the global distribution and seasonal variation of the 4 major functional groups including dominance of the symbiont-obligate type in subtropical gyres and the symbiont-barren type in the productive subpolar oceans. The carbon export rate is correctly predicted for spinose foraminifera, but the model overestimates the global mean biomass of each group by 8 times and global export rate of non-spinose foraminifera by 4 times. Both the observational bias and the model's limitation in linking biomass to export production likely contributes to the discrepancy. Our model approximates a 3.05 g m-2 yr-1 global mean foraminifer-derived calcite flux and 1.1 Gt yr-1 total calcite export, account for 19 % of the global pelagic marine calcite budget within the lower range of modern calcite estimates. The calcite export is mostly derived from the symbiont-barren non-spinose group (39 %) and the symbiont-obligate spinose group (13 %). Our model overcomes the lack of biodiversity in previous version and offers the potential to explore foraminifera ecology dynamics and its impact on biogeochemistry in modern, future and paleogeographic environments.

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Section: Foramecogenie 10 Descriptionmentioning

confidence: 99%

Section: Respiration Costmentioning

confidence: 99%

Section: A Mortality Protectionmentioning

confidence: 99%

Section: Approximating Foraminifera Carbon Production and Exportmentioning

confidence: 99%

Section: Seasonal Variations Of Foraminifera Living Biomass and Poc E...mentioning

confidence: 99%

See 3 more Smart Citations

ForamEcoGENIE 2.0: Incorporating symbiosis and spine traits into a trait-based global planktic foraminifera model

Ying

Monteiro

Wilson

et al. 2022

Preprint

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Tsunami deposits in tropical regions: A review

Coca,

Ramírez-Herrera

2024

Quaternary International

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Planktic Foraminiferal Resilience to Environmental Change Associated With the PETM

Barrett

Adebowale

Birch

et al. 2023

Paleoceanog and Paleoclimatol

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Carbonate‐forming organisms play an integral role in the marine inorganic carbon cycle, yet the links between carbonate production and the environment are insufficiently understood. Carbonate production is driven by the abundance of calcifiers, and the amount of calcite produced by each individual (their size and weight). Here we investigate how foraminiferal carbonate production changes in the Atlantic, Pacific and Southern Ocean in response to a 4‐5°C warming and a 0.3 surface ocean pH reduction during the Palaeocene‐Eocene Thermal Maximum (PETM). To put these local data into a global context, we apply a trait‐based plankton model (ForamEcoGEnIE) to the geologic record for the first time. Our data illustrates negligible change in the assemblage test size and abundance of foraminifers. ForamEcoGEnIE resolves small reductions in size and biomass, but these are short‐lived. The response of foraminifers shows spatial variability linked to a warming‐induced poleward migration and suggested differences in nutrient availability between open‐ocean and shelf locations. Despite low calcite saturation at high latitudes, we reconstruct stable foraminiferal size‐normalised weight. Based on these findings, we postulate that sea surface warming had a greater impact on foraminiferal carbonate production during the PETM than ocean acidification. Changes in the composition of bulk carbonate suggest a higher sensitivity of coccolithophores to environmental change during the PETM than foraminifers.This article is protected by copyright. All rights reserved.

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Exploring the impact of climate change on the global distribution of non‐spinose planktonic foraminifera using a trait‐based ecosystem model

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 11 publications

References 76 publications

ForamEcoGENIE 2.0: Incorporating symbiosis and spine traits into a trait-based global planktic foraminifera model

ForamEcoGENIE 2.0: Incorporating symbiosis and spine traits into a trait-based global planktic foraminifera model

Tsunami deposits in tropical regions: A review

Planktic Foraminiferal Resilience to Environmental Change Associated With the PETM

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