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ForamEcoGEnIE 2.0: incorporating symbiosis and spine traits into a trait-based global planktic foraminiferal model

Geoscientific Model Development, 2023-02, Vol.16 (3), p.813-832 [Peer Reviewed Journal]

COPYRIGHT 2023 Copernicus GmbH ;2023. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1991-9603 ;ISSN: 1991-959X ;ISSN: 1991-962X ;EISSN: 1991-9603 ;DOI: 10.5194/gmd-16-813-2023

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Title:
ForamEcoGEnIE 2.0: incorporating symbiosis and spine traits into a trait-based global planktic foraminiferal model
Author: Ying, Rui ; Monteiro, Fanny M ; Wilson, Jamie D ; Schmidt, Daniela N
Subjects: Algae ; Archives & records ; Biodiversity ; Biogeochemistry ; Biomass ; Calcification ; Carbon ; Carbon cycle ; Climate ; Climate change ; Climatic changes ; Comparative analysis ; Ecological distribution ; Ecological niches ; Ecology ; Foraminifera ; Fossils ; Functional groups ; Gyres ; Hypercubes ; Inorganic carbon ; Latin hypercube sampling ; Modelling ; Niches ; Ocean circulation ; Oceans ; Organic carbon ; Parameter identification ; Physiology ; Plankton ; Plankton collecting devices ; Plankton nets ; Seasonal distribution ; Sediment ; Sediment samplers ; Sediment samples ; Sediment traps ; Sediments ; Spine ; Spines ; Symbionts ; Symbiosis ; Upwelling
Is Part Of: Geoscientific Model Development, 2023-02, Vol.16 (3), p.813-832
Description: 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. The foraminifera contain ecogroups with and without spines and algal symbionts, creating functional trait diversity which expands their ecological niches. Here, we incorporate symbiosis and spine traits into the symbiont-barren non-spinose foraminifer functional type in EcoGEnIE to represent all the extant foraminifera species. We calibrated the modelled new traits using Latin hypercube sampling (LHS) and identified the optimal model parameters from an ensemble of 1200 runs compared with global observations from core-top sediment samples, sediment traps, and plankton nets. The model successfully describes the global distribution and seasonal abundance variation of the four major foraminiferal functional groups. The model reproduces the dominance of the symbiont-obligate group in subtropical gyres and of the symbiont-barren types in the productive subpolar oceans. Global annual mean biomass and foraminifer-derived carbon export rate are correctly predicted compared to data, with biomass ranging from 0.001 to 0.010 mmol C m−3 and organic carbon export 0.002–0.031 mmol C m−2 d−1. The model captures the seasonal peak time of biomass and organic carbon export but struggles to reproduce the amplitude of both in productive areas. The sparseness and uneven distribution of observations and the model's limitation in upwelling regions likely contribute to this discrepancy. Our model overcomes the lack of major groups in the previous ForamEcoGEnIE 1.0 version and offers the potential to explore foraminiferal ecology dynamics and its impact on biogeochemistry in modern, future, and paleogeographic environments.
Publisher: Katlenburg-Lindau: Copernicus GmbH
Language: English
Identifier: ISSN: 1991-9603
ISSN: 1991-959X
ISSN: 1991-962X
EISSN: 1991-9603
DOI: 10.5194/gmd-16-813-2023
Source: Alma/SFX Local Collection
ProQuest Central
DOAJ Directory of Open Access Journals

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ForamEcoGEnIE 2.0: incorporating symbiosis and spine traits into a trait-based global planktic foraminiferal model

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