Articles | Volume 19, issue 22
https://doi.org/10.5194/bg-19-5269-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-5269-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Nov 2022
Research article |
| 22 Nov 2022
| 22 Nov 2022
Acidification impacts and acclimation potential of Caribbean benthic foraminifera assemblages in naturally discharging low-pH water
Departamento de Geoquímica, Universidade Federal Fluminense, Niterói, Brazil
now at: Department of Ocean Systems, NIOZ Royal Netherlands Institute for Sea Research and Utrecht University, Texel, the Netherlands
Adina Paytan
Institute of Marine Sciences, University of California, Santa Cruz, USA
Olga Maria Oliveira de Araújo
Nuclear Instrumentation Laboratory, Nuclear Engineering Program/COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
Ricardo Tadeu Lopes
Nuclear Instrumentation Laboratory, Nuclear Engineering Program/COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
Cátia Fernandes Barbosa
Departamento de Geoquímica, Universidade Federal Fluminense, Niterói, Brazil
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Lukas Jonkers, Tonke Strack, Montserrat Alonso-Garcia, Simon D'haenens, Robert Huber, Michal Kucera, Iván Hernández-Almeida, Chloe L. C. Jones, Brett Metcalfe, Rajeev Saraswat, Lóránd Silye, Sanjay K. Verma, Muhamad Naim Abd Malek, Gerald Auer, Cátia F. Barbosa, Maria A. Barcena, Karl-Heinz Baumann, Flavia Boscolo-Galazzo, Joeven Austine S. Calvelo, Lucilla Capotondi, Martina Caratelli, Jorge Cardich, Humberto Carvajal-Chitty, Markéta Chroustová, Helen K. Coxall, Renata M. de Mello, Anne de Vernal, Paula Diz, Kirsty M. Edgar, Helena L. Filipsson, Ángela Fraguas, Heather L. Furlong, Giacomo Galli, Natalia L. García Chapori, Robyn Granger, Jeroen Groeneveld, Adil Imam, Rebecca Jackson, David Lazarus, Julie Meilland, Marína Molčan Matejová, Raphael Morard, Caterina Morigi, Sven N. Nielsen, Diana Ochoa, Maria Rose Petrizzo, Andrés S. Rigual-Hernández, Marina C. Rillo, Matthew L. Staitis, Gamze Tanık, Raúl Tapia, Nishant Vats, Bridget S. Wade, and Anna E. Weinmann
J. Micropalaeontol., 44, 145–168, https://doi.org/10.5194/jm-44-145-2025, https://doi.org/10.5194/jm-44-145-2025, 2025
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Our study provides guidelines improving the reuse of marine microfossil assemblage data, which are valuable for understanding past ecosystems and environmental change. Based on a survey of 113 researchers, we identified key data attributes required for effective reuse. Analysis of a selection of datasets available online reveals a gap between the attributes scientists consider essential and the data currently available, highlighting the need for clearer data documentation and sharing practices.
Natalie M. Mahowald, Longlei Li, Julius Vira, Marje Prank, Douglas S. Hamilton, Hitoshi Matsui, Ron L. Miller, P. Louis Lu, Ezgi Akyuz, Daphne Meidan, Peter Hess, Heikki Lihavainen, Christine Wiedinmyer, Jenny Hand, Maria Grazia Alaimo, Célia Alves, Andres Alastuey, Paulo Artaxo, Africa Barreto, Francisco Barraza, Silvia Becagli, Giulia Calzolai, Shankararaman Chellam, Ying Chen, Patrick Chuang, David D. Cohen, Cristina Colombi, Evangelia Diapouli, Gaetano Dongarra, Konstantinos Eleftheriadis, Johann Engelbrecht, Corinne Galy-Lacaux, Cassandra Gaston, Dario Gomez, Yenny González Ramos, Roy M. Harrison, Chris Heyes, Barak Herut, Philip Hopke, Christoph Hüglin, Maria Kanakidou, Zsofia Kertesz, Zbigniew Klimont, Katriina Kyllönen, Fabrice Lambert, Xiaohong Liu, Remi Losno, Franco Lucarelli, Willy Maenhaut, Beatrice Marticorena, Randall V. Martin, Nikolaos Mihalopoulos, Yasser Morera-Gómez, Adina Paytan, Joseph Prospero, Sergio Rodríguez, Patricia Smichowski, Daniela Varrica, Brenna Walsh, Crystal L. Weagle, and Xi Zhao
Atmos. Chem. Phys., 25, 4665–4702, https://doi.org/10.5194/acp-25-4665-2025, https://doi.org/10.5194/acp-25-4665-2025, 2025
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Aerosol particles are an important part of the Earth system, but their concentrations are spatially and temporally heterogeneous, as well as being variable in size and composition. Here, we present a new compilation of PM2.5 and PM10 aerosol observations, focusing on the spatial variability across different observational stations, including composition, and demonstrate a method for comparing the data sets to model output.
Ashley Brereton, Zelalem Mekonnen, Bhavna Arora, William Riley, Kunxiaojia Yuan, Yi Xu, Yu Zhang, Qing Zhu, Tyler Anthony, and Adina Paytan
EGUsphere, https://doi.org/10.5194/egusphere-2025-361, https://doi.org/10.5194/egusphere-2025-361, 2025
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Wetlands absorb carbon dioxide (CO2), helping slow climate change, but they also release methane, a potent warming gas. We developed a collection of AI-based models to estimate magnitudes of CO2 and methane exchanged between the land and the atmosphere, for wetlands on a regional scale. This approach helps to inform land-use planning, restoration, and greenhouse gas accounting, while also creating a foundation for future advancements in prediction accuracy.
Natalie M. Mahowald, Longlei Li, Julius Vira, Marje Prank, Douglas S. Hamilton, Hitoshi Matsui, Ron L. Miller, Louis Lu, Ezgi Akyuz, Daphne Meidan, Peter Hess, Heikki Lihavainen, Christine Wiedinmyer, Jenny Hand, Maria Grazia Alaimo, Célia Alves, Andres Alastuey, Paulo Artaxo, Africa Barreto, Francisco Barraza, Silvia Becagli, Giulia Calzolai, Shankarararman Chellam, Ying Chen, Patrick Chuang, David D. Cohen, Cristina Colombi, Evangelia Diapouli, Gaetano Dongarra, Konstantinos Eleftheriadis, Corinne Galy-Lacaux, Cassandra Gaston, Dario Gomez, Yenny González Ramos, Hannele Hakola, Roy M. Harrison, Chris Heyes, Barak Herut, Philip Hopke, Christoph Hüglin, Maria Kanakidou, Zsofia Kertesz, Zbiginiw Klimont, Katriina Kyllönen, Fabrice Lambert, Xiaohong Liu, Remi Losno, Franco Lucarelli, Willy Maenhaut, Beatrice Marticorena, Randall V. Martin, Nikolaos Mihalopoulos, Yasser Morera-Gomez, Adina Paytan, Joseph Prospero, Sergio Rodríguez, Patricia Smichowski, Daniela Varrica, Brenna Walsh, Crystal Weagle, and Xi Zhao
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2024-1, https://doi.org/10.5194/essd-2024-1, 2024
Preprint withdrawn
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Aerosol particles can interact with incoming solar radiation and outgoing long wave radiation, change cloud properties, affect photochemistry, impact surface air quality, and when deposited impact surface albedo of snow and ice, and modulate carbon dioxide uptake by the land and ocean. Here we present a new compilation of aerosol observations including composition, a methodology for comparing the datasets to model output, and show the implications of these results using one model.
Anna Paula Soares Cruz, Cátia Fernandes Barbosa, Angélica Maria Blanco, Camila Areias de Oliveira, Cleverson Guizan Silva, and José Carlos Sícoli Seoane
Clim. Past, 15, 1363–1373, https://doi.org/10.5194/cp-15-1363-2019, https://doi.org/10.5194/cp-15-1363-2019, 2019
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Salgada Lagoon is a hypersaline lake investigated for its sedimentation history in order to interpret past climatic events. We studied the geochemistry of sediments from 5800 years ago until the present and found sea level oscillations, different climatic conditions, and proxies for vegetation cover and productivity, which highlight a dry event 4200 years ago that matches a global event of the same age, marking changes to favorable conditions for carbonates microbial mats and stromatolites.
Rodrigo da Costa Portilho-Ramos, Tainã Marcos Lima Pinho, Cristiano Mazur Chiessi, and Cátia Fernandes Barbosa
Clim. Past, 15, 943–955, https://doi.org/10.5194/cp-15-943-2019, https://doi.org/10.5194/cp-15-943-2019, 2019
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Fossil microorganisms from the last glacial found in marine sediments collected off southern Brazil suggest that more productive austral summer upwelling and more frequent austral winter incursions of nutrient-rich waters from the Plata River boosted regional productivity year-round. While upwelling was more productive due to the higher silicon content from the Southern Ocean, more frequent riverine incursions were modulated by stronger alongshore southwesterly winds.
Ana Martinez, Laura Hernández-Terrones, Mario Rebolledo-Vieyra, and Adina Paytan
Biogeosciences, 15, 6819–6832, https://doi.org/10.5194/bg-15-6819-2018, https://doi.org/10.5194/bg-15-6819-2018, 2018
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Our study at low-pH submarine springs suggests that ocean acidification may reduce the number of Caribbean benthic foraminifera, particularly those species that form carbonate shells. This may have subsequent repercussions on the global carbon cycle and marine food webs that depend on benthic foraminifera.
Pei-Chuan Chuang, Megan B. Young, Andrew W. Dale, Laurence G. Miller, Jorge A. Herrera-Silveira, and Adina Paytan
Biogeosciences, 13, 2981–3001, https://doi.org/10.5194/bg-13-2981-2016, https://doi.org/10.5194/bg-13-2981-2016, 2016
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A transport-reaction model was used to simulate porewater methane and sulfate concentrations. Model results and sediment slurry incubation experiments show high methane production rates supported by non-competitive substrates and ample dissolved and labile organic matter as well as methane from deeper sediment through bubbles dissolution and diffusion. The shallow methane production and accumulation depths in these sediments promote high methane fluxes to the water column and atmosphere.
Y. Zhang, N. Mahowald, R. A. Scanza, E. Journet, K. Desboeufs, S. Albani, J. F. Kok, G. Zhuang, Y. Chen, D. D. Cohen, A. Paytan, M. D. Patey, E. P. Achterberg, J. P. Engelbrecht, and K. W. Fomba
Biogeosciences, 12, 5771–5792, https://doi.org/10.5194/bg-12-5771-2015, https://doi.org/10.5194/bg-12-5771-2015, 2015
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A new technique to determine a size-fractionated global soil elemental emission inventory based on a global soil and mineralogical data set is introduced. Spatial variability of mineral dust elemental fractions (8 elements, e.g., Ca, Fe, Al) is identified on a global scale, particularly for Ca. The Ca/Al ratio ranged between 0.1 and 5.0 and is confirmed as an indicator of dust source regions by a global dust model. Total and soluble dust element fluxes into different ocean basins are estimated.
S. Markovic, A. Paytan, and U. G. Wortmann
Biogeosciences, 12, 3043–3060, https://doi.org/10.5194/bg-12-3043-2015, https://doi.org/10.5194/bg-12-3043-2015, 2015
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We present a new Quaternary S-isotope record of seawater sulfate. We
find that the steady decline in the seawater S-isotope ratios stops
around 700ka, which we relate to the termination of the massive net
“sediment offloading”and a new equilibrium state between shelf erosion
during sea level lowstands and sediment resupply during sea level highstands.
E. D. Crook, H. Cooper, D. C. Potts, T. Lambert, and A. Paytan
Biogeosciences, 10, 7599–7608, https://doi.org/10.5194/bg-10-7599-2013, https://doi.org/10.5194/bg-10-7599-2013, 2013
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Tomohiro Hajima, Michio Kawamiya, Akihiko Ito, Kaoru Tachiiri, Chris D. Jones, Vivek Arora, Victor Brovkin, Roland Séférian, Spencer Liddicoat, Pierre Friedlingstein, and Elena Shevliakova
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Biogeosciences, 22, 1413–1426, https://doi.org/10.5194/bg-22-1413-2025, https://doi.org/10.5194/bg-22-1413-2025, 2025
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Biogeosciences, 22, 1203–1214, https://doi.org/10.5194/bg-22-1203-2025, https://doi.org/10.5194/bg-22-1203-2025, 2025
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Research on the influences of dynamic pH on the marine ecosystem is still in its infancy. We manipulated the culturing pH to simulate pH fluctuation and found lower pH could increase eicosapentaenoic acid and docosahexaenoic acid production with unaltered growth and photosynthesis in two marine diatoms. It is important to consider pH variation for more accurate predictions regarding the consequences of acidification in coastal waters.
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Biogeosciences, 22, 1115–1133, https://doi.org/10.5194/bg-22-1115-2025, https://doi.org/10.5194/bg-22-1115-2025, 2025
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Biogeosciences, 22, 1035–1056, https://doi.org/10.5194/bg-22-1035-2025, https://doi.org/10.5194/bg-22-1035-2025, 2025
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Ozone (O3) pollution reduces wheat yields and quality in India, affecting amino acids essential for nutrition, like lysine and methionine. Here, we improve the DO3SE-CropN model to simulate wheat’s protective processes against O3 and their impact on protein and amino acid concentrations. While the model captures O3-induced yield losses, it underestimates amino acid reductions. Further research is needed to refine the model, enabling future risk assessments of O3's impact on yields and nutrition.
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Biogeosciences, 22, 841–862, https://doi.org/10.5194/bg-22-841-2025, https://doi.org/10.5194/bg-22-841-2025, 2025
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Biogeosciences, 22, 473–498, https://doi.org/10.5194/bg-22-473-2025, https://doi.org/10.5194/bg-22-473-2025, 2025
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The environmental impacts of ocean alkalinity enhancement (OAE) are unknown. Our synthesis, based on 68 collected studies with 84 unique species, shows that 35 % of species respond positively, 26 % respond negatively, and 39 % show a neutral response to alkalinity addition. Biological thresholds were found from 50 to 500 µmol kg−1 NaOH addition. A precautionary approach is warranted to avoid potential risks, while current regulatory framework needs improvements to assure safe biological limits.
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EGUsphere, https://doi.org/10.5194/egusphere-2024-4107, https://doi.org/10.5194/egusphere-2024-4107, 2025
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The Southern Ocean carbon sink is a balance between two opposing forces: CO2 absorption at mid-latitudes and CO2 outgassing at high-latitudes. Radiocarbon analysis can be used to constrain the latter, as upwelling waters outgas old CO2, diluting atmospheric radiocarbon content. We present tree-ring radiocarbon measurements from New Zealand and Chile. We show that low radiocarbon in New Zealand’s Campbell Island is linked to outgassing in the critical Antarctic Southern Zone.
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Biogeosciences, 22, 71–86, https://doi.org/10.5194/bg-22-71-2025, https://doi.org/10.5194/bg-22-71-2025, 2025
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Ocean alkalinity enhancement (OAE) is a negative emission technology which may alter marine communities and the particle export they drive. Here, impacts of carbonate-based OAE on the flux and attenuation of sinking particles in an oligotrophic plankton community are presented. Whilst biological parameters remained unaffected, abiotic carbonate precipitation occurred. Among counteracting OAE’s efficiency, it influenced mineral ballasting and particle sinking velocities, requiring monitoring.
Thuy Huu Nguyen, Thomas Gaiser, Jan Vanderborght, Andrea Schnepf, Felix Bauer, Anja Klotzsche, Lena Lärm, Hubert Hüging, and Frank Ewert
Biogeosciences, 21, 5495–5515, https://doi.org/10.5194/bg-21-5495-2024, https://doi.org/10.5194/bg-21-5495-2024, 2024
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Leaf water potential was at certain thresholds, depending on soil type, water treatment, and weather conditions. In rainfed plots, the lower water availability in the stony soil resulted in fewer roots with a higher root tissue conductance than the silty soil. In the silty soil, higher stress in the rainfed soil led to more roots with a lower root tissue conductance than in the irrigated plot. Crop responses to water stress can be opposite, depending on soil water conditions that are compared.
Mana Gharun, Ankit Shekhar, Jingfeng Xiao, Xing Li, and Nina Buchmann
Biogeosciences, 21, 5481–5494, https://doi.org/10.5194/bg-21-5481-2024, https://doi.org/10.5194/bg-21-5481-2024, 2024
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In 2022, Europe's forests faced unprecedented dry conditions. Our study aimed to understand how different forest types respond to extreme drought. Using meteorological data and satellite imagery, we compared 2022 with two previous extreme years, 2003 and 2018. Despite less severe drought in 2022, forests showed a 30 % greater decline in photosynthesis compared to 2018 and 60 % more than 2003. This suggests an alarming level of vulnerability of forests across Europe to more frequent droughts.
Qi Zheng, Johannes J. Viljoen, Xuerong Sun, and Robert J. W. Brewin
EGUsphere, https://doi.org/10.5194/egusphere-2024-3502, https://doi.org/10.5194/egusphere-2024-3502, 2024
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Phytoplankton contribute to half of Earth’s primary production, but not a lot is known about subsurface phytoplankton, living at the base of the sunlit ocean. We develop a two-layered box model to simulate phytoplankton seasonal and interannual variations in different depth layers of the ocean. Our model captures seasonal and long-term trends of the two layers, explaining how they respond to a warming ocean, furthering our understanding of how phytoplankton are responding to climate change.
Gabriella Everett, Øivind Hodnebrog, Madhoolika Agrawal, Durgesh Singh Yadav, Connie O'Neill, Chubamenla Jamir, Jo Cook, Pritha Pande, and Lisa Emberson
EGUsphere, https://doi.org/10.5194/egusphere-2024-3371, https://doi.org/10.5194/egusphere-2024-3371, 2024
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Ground-level ozone (O3), heat, and water stress (WS) reduce wheat yields, threatening food security in India. O3, heat, and WS interact as stressed plants close stomata, limiting O3 entry and damage. This study models O3 uptake under rainfed (WS) and irrigated conditions for current and future climates. Results show little O3-related yield loss under wWS but higher losses with irrigation. Both climate scenarios increase O3-related losses, highlighting risks to India’s wheat productivity.
Makcim L. De Sisto and Andrew H. MacDougall
Biogeosciences, 21, 4853–4873, https://doi.org/10.5194/bg-21-4853-2024, https://doi.org/10.5194/bg-21-4853-2024, 2024
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The remaining carbon budget (RCB) represents the allowable future CO2 emissions before a temperature target is reached. Understanding the uncertainty in the RCB is critical for effective climate regulation and policy-making. One major source of uncertainty is the representation of the carbon cycle in Earth system models. We assessed how nutrient limitation affects the estimation of the RCB. We found a reduction in the estimated RCB when nutrient limitation is taken into account.
Outi Kinnunen, Leif Backman, Juha Aalto, Tuula Aalto, and Tiina Markkanen
Biogeosciences, 21, 4739–4763, https://doi.org/10.5194/bg-21-4739-2024, https://doi.org/10.5194/bg-21-4739-2024, 2024
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Climate change is expected to increase the risk of forest fires. Ecosystem process model simulations are used to project changes in fire occurrence in Fennoscandia under six climate projections. The findings suggest a longer fire season, more fires, and an increase in burnt area towards the end of the century.
Jo Cook, Clare Brewster, Felicity Hayes, Nathan Booth, Sam Bland, Pritha Pande, Samarthia Thankappan, Håkan Pleijel, and Lisa Emberson
Biogeosciences, 21, 4809–4835, https://doi.org/10.5194/bg-21-4809-2024, https://doi.org/10.5194/bg-21-4809-2024, 2024
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At ground level, the air pollutant ozone (O3) damages wheat yield and quality. We modified the DO3SE-Crop model to simulate O3 effects on wheat quality and identified onset of leaf death as the key process affecting wheat quality upon O3 exposure. This aligns with expectations, as the onset of leaf death aids nutrient transfer from leaves to grains. Breeders should prioritize wheat varieties resistant to protein loss from delayed leaf death, to maintain yield and quality under O3 exposure.
Niels Suitner, Giulia Faucher, Carl Lim, Julieta Schneider, Charly A. Moras, Ulf Riebesell, and Jens Hartmann
Biogeosciences, 21, 4587–4604, https://doi.org/10.5194/bg-21-4587-2024, https://doi.org/10.5194/bg-21-4587-2024, 2024
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Recent studies described the precipitation of carbonates as a result of alkalinity enhancement in seawater, which could adversely affect the carbon sequestration potential of ocean alkalinity enhancement (OAE) approaches. By conducting experiments in natural seawater, this study observed uniform patterns during the triggered runaway carbonate precipitation, which allow the prediction of safe and efficient local application levels of OAE scenarios.
Milagros Rico, Paula Santiago-Díaz, Guillermo Samperio-Ramos, Melchor González-Dávila, and Juana Magdalena Santana-Casiano
Biogeosciences, 21, 4381–4394, https://doi.org/10.5194/bg-21-4381-2024, https://doi.org/10.5194/bg-21-4381-2024, 2024
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Changes in pH generate stress conditions, either because high pH drastically decreases the availability of trace metals such as Fe(II), a restrictive element for primary productivity, or because reactive oxygen species are increased with low pH. The metabolic functions and composition of microalgae can be affected. These modifications in metabolites are potential factors leading to readjustments in phytoplankton community structure and diversity and possible alteration in marine ecosystems.
Christine Kaufhold, Matteo Willeit, Bo Liu, and Andrey Ganopolski
EGUsphere, https://doi.org/10.5194/egusphere-2024-2976, https://doi.org/10.5194/egusphere-2024-2976, 2024
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This study simulates long-term future climate scenarios to examine how long CO2 emissions will persist in the atmosphere. It shows that the effectiveness of carbon removal processes varies with the amount emitted. The removal of CO2 through silicate weathering is faster than previously thought, leading to a quicker reduction over time. The combined behaviour of different carbon cycle processes emphasizes the need to include all of them in models, as to better predict long-term atmospheric CO2.
Anton Lokshin, Daniel Palchan, Elnatan Golan, Ran Erel, Daniele Andronico, and Avner Gross
EGUsphere, https://doi.org/10.5194/egusphere-2024-2531, https://doi.org/10.5194/egusphere-2024-2531, 2024
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Our research explores how chickpea plants can absorb essential nutrients like phosphorus, iron, and nickel directly from dust deposited on their leaves, in addition to uptake through their roots. This process was particularly effective under higher levels of atmospheric CO2, leading to increased plant growth. By using Nd isotopic tools, we traced the nutrients from dust and found that certain leaf traits enhance this uptake. This discovery may become increasingly important as CO2 levels rise.
James A. King, James Weber, Peter Lawrence, Stephanie Roe, Abigail L. S. Swann, and Maria Val Martin
Biogeosciences, 21, 3883–3902, https://doi.org/10.5194/bg-21-3883-2024, https://doi.org/10.5194/bg-21-3883-2024, 2024
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Tackling climate change by adding, restoring, or enhancing forests is gaining global support. However, it is important to investigate the broader implications of this. We used a computer model of the Earth to investigate a future where tree cover expanded as much as possible. We found that some tropical areas were cooler because of trees pumping water into the atmosphere, but this also led to soil and rivers drying. This is important because it might be harder to maintain forests as a result.
Simone Matias Reis, Yadvinder Malhi, Ben Hur Marimon Junior, Beatriz S. Marimon, Huanyuan Zhang-Zheng, Renata Freitag, Cécile A. J. Girardin, Edmar Almeida de Oliveira, Karine da Silva Peixoto, Luciana Januário de Souza, Ediméia Laura Souza da Silva, Eduarda Bernardes Santos, Kamila Parreira da Silva, Maélly Dállet Alves Gonçalves, Cecilia A. L. Dahlsjö, Oliver L. Phillips, and Imma Oliveras Menor
EGUsphere, https://doi.org/10.5194/egusphere-2024-2118, https://doi.org/10.5194/egusphere-2024-2118, 2024
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The 2015–2016 El Niño caused severe droughts in tropical forests, but its impact on the Cerrado, largest savanna, was unclear. Our study tracked the productivity of two key Cerrado vegetation types over five years. Before El Niño, productivity was higher in the transitional forest-savanna, but it dropped sharply during the event. Meanwhile, the savanna showed minor changes. These findings suggest that transitional ecosystems are particularly vulnerable to drought and climate change.
Benoît Pasquier, Mark Holzer, and Matthew A. Chamberlain
Biogeosciences, 21, 3373–3400, https://doi.org/10.5194/bg-21-3373-2024, https://doi.org/10.5194/bg-21-3373-2024, 2024
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How do perpetually slower and warmer oceans sequester carbon? Compared to the preindustrial state, we find that biological productivity declines despite warming-stimulated growth because of a lower nutrient supply from depth. This throttles the biological carbon pump, which still sequesters more carbon because it takes longer to return to the surface. The deep ocean is isolated from the surface, allowing more carbon from the atmosphere to pass through the ocean without contributing to biology.
Matthew A. Chamberlain, Tilo Ziehn, and Rachel M. Law
Biogeosciences, 21, 3053–3073, https://doi.org/10.5194/bg-21-3053-2024, https://doi.org/10.5194/bg-21-3053-2024, 2024
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This paper explores the climate processes that drive increasing global average temperatures in zero-emission commitment (ZEC) simulations despite decreasing atmospheric CO2. ACCESS-ESM1.5 shows the Southern Ocean to continue to warm locally in all ZEC simulations. In ZEC simulations that start after the emission of more than 1000 Pg of carbon, the influence of the Southern Ocean increases the global temperature.
Shuaifeng Song, Xuezhen Zhang, and Xiaodong Yan
Biogeosciences, 21, 2839–2858, https://doi.org/10.5194/bg-21-2839-2024, https://doi.org/10.5194/bg-21-2839-2024, 2024
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We mapped the distribution of future potential afforestation regions based on future high-resolution climate data and climate–vegetation models. After considering the national afforestation policy and climate change, we found that the future potential afforestation region was mainly located around and to the east of the Hu Line. This study provides a dataset for exploring the effects of future afforestation.
Tianfei Xue, Jens Terhaar, A. E. Friederike Prowe, Thomas L. Frölicher, Andreas Oschlies, and Ivy Frenger
Biogeosciences, 21, 2473–2491, https://doi.org/10.5194/bg-21-2473-2024, https://doi.org/10.5194/bg-21-2473-2024, 2024
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Phytoplankton play a crucial role in marine ecosystems. However, climate change's impact on phytoplankton biomass remains uncertain, particularly in the Southern Ocean. In this region, phytoplankton biomass within the water column is likely to remain stable in response to climate change, as supported by models. This stability arises from a shallower mixed layer, favoring phytoplankton growth but also increasing zooplankton grazing due to phytoplankton concentration near the surface.
Kinga Kulesza and Agata Hościło
Biogeosciences, 21, 2509–2527, https://doi.org/10.5194/bg-21-2509-2024, https://doi.org/10.5194/bg-21-2509-2024, 2024
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We present coherence and time lags in spectral response of three vegetation types in the European temperate zone to the influencing meteorological factors and teleconnection indices for the period 2002–2022. Vegetation condition in broadleaved forest, coniferous forest and pastures was measured with MODIS NDVI and EVI, and the coherence between NDVI and EVI and meteorological elements was described using the methods of wavelet coherence and Pearson’s linear correlation with time lag.
Anton Lokshin, Daniel Palchan, and Avner Gross
Biogeosciences, 21, 2355–2365, https://doi.org/10.5194/bg-21-2355-2024, https://doi.org/10.5194/bg-21-2355-2024, 2024
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Ash particles from wildfires are rich in phosphorus (P), a crucial nutrient that constitutes a limiting factor in 43 % of the world's land ecosystems. We hypothesize that wildfire ash could directly contribute to plant nutrition. We find that fire ash application boosts the growth of plants, but the only way plants can uptake P from fire ash is through the foliar uptake pathway and not through the roots. The fertilization impact of fire ash was also maintained under elevated levels of CO2.
Lucia S. Layritz, Konstantin Gregor, Andreas Krause, Stefan Kruse, Ben F. Meyer, Tom A. M. Pugh, and Anja Rammig
EGUsphere, https://doi.org/10.5194/egusphere-2024-1028, https://doi.org/10.5194/egusphere-2024-1028, 2024
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Disturbances (e.g. fire) can change which species grow in a forest, affecting water, carbon, energy flows, and the climate. They are expected to increase with climate change, but it is uncertain by how much. We studied how future climate and disturbances might impact vegetation with a simulation model. Our findings highlight the importance of considering both factors, with future disturbance patterns posing significant uncertainty. More research is needed to understand their future development.
Marcus Breil, Vanessa K. M. Schneider, and Joaquim G. Pinto
Biogeosciences, 21, 811–824, https://doi.org/10.5194/bg-21-811-2024, https://doi.org/10.5194/bg-21-811-2024, 2024
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The general impact of afforestation on the regional climate conditions in Europe during the period 1986–2015 is investigated. For this purpose, a regional climate model simulation is performed, in which afforestation during this period is considered, and results are compared to a simulation in which this is not the case. Results show that afforestation had discernible impacts on the climate change signal in Europe, which may have mitigated the local warming trend, especially in summer in Europe.
Ali Asaadi, Jörg Schwinger, Hanna Lee, Jerry Tjiputra, Vivek Arora, Roland Séférian, Spencer Liddicoat, Tomohiro Hajima, Yeray Santana-Falcón, and Chris D. Jones
Biogeosciences, 21, 411–435, https://doi.org/10.5194/bg-21-411-2024, https://doi.org/10.5194/bg-21-411-2024, 2024
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Carbon cycle feedback metrics are employed to assess phases of positive and negative CO2 emissions. When emissions become negative, we find that the model disagreement in feedback metrics increases more strongly than expected from the assumption that the uncertainties accumulate linearly with time. The geographical patterns of such metrics over land highlight that differences in response between tropical/subtropical and temperate/boreal ecosystems are a major source of model disagreement.
Flora Desmet, Matthias Münnich, and Nicolas Gruber
Biogeosciences, 20, 5151–5175, https://doi.org/10.5194/bg-20-5151-2023, https://doi.org/10.5194/bg-20-5151-2023, 2023
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Ocean acidity extremes in the upper 250 m depth of the northeastern Pacific rapidly increase with atmospheric CO2 rise, which is worrisome for marine organisms that rapidly experience pH levels outside their local environmental conditions. Presented research shows the spatiotemporal heterogeneity in this increase between regions and depths. In particular, the subsurface increase is substantially slowed down by the presence of mesoscale eddies, often not resolved in Earth system models.
Geneviève W. Elsworth, Nicole S. Lovenduski, Kristen M. Krumhardt, Thomas M. Marchitto, and Sarah Schlunegger
Biogeosciences, 20, 4477–4490, https://doi.org/10.5194/bg-20-4477-2023, https://doi.org/10.5194/bg-20-4477-2023, 2023
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Anthropogenic climate change will influence marine phytoplankton over the coming century. Here, we quantify the influence of anthropogenic climate change on marine phytoplankton internal variability using an Earth system model ensemble and identify a decline in global phytoplankton biomass variance with warming. Our results suggest that climate mitigation efforts that account for marine phytoplankton changes should also consider changes in phytoplankton variance driven by anthropogenic warming.
Olivia Haas, Iain Colin Prentice, and Sandy P. Harrison
Biogeosciences, 20, 3981–3995, https://doi.org/10.5194/bg-20-3981-2023, https://doi.org/10.5194/bg-20-3981-2023, 2023
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We quantify the impact of CO2 and climate on global patterns of burnt area, fire size, and intensity under Last Glacial Maximum (LGM) conditions using three climate scenarios. Climate change alone did not produce the observed LGM reduction in burnt area, but low CO2 did through reducing vegetation productivity. Fire intensity was sensitive to CO2 but strongly affected by changes in atmospheric dryness. Low CO2 caused smaller fires; climate had the opposite effect except in the driest scenario.
Rebecca M. Varney, Sarah E. Chadburn, Eleanor J. Burke, Simon Jones, Andy J. Wiltshire, and Peter M. Cox
Biogeosciences, 20, 3767–3790, https://doi.org/10.5194/bg-20-3767-2023, https://doi.org/10.5194/bg-20-3767-2023, 2023
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This study evaluates soil carbon projections during the 21st century in CMIP6 Earth system models. In general, we find a reduced spread of changes in global soil carbon in CMIP6 compared to the previous CMIP5 generation. The reduced CMIP6 spread arises from an emergent relationship between soil carbon changes due to change in plant productivity and soil carbon changes due to changes in turnover time. We show that this relationship is consistent with false priming under transient climate change.
Claudia Hinrichs, Peter Köhler, Christoph Völker, and Judith Hauck
Biogeosciences, 20, 3717–3735, https://doi.org/10.5194/bg-20-3717-2023, https://doi.org/10.5194/bg-20-3717-2023, 2023
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This study evaluated the alkalinity distribution in 14 climate models and found that most models underestimate alkalinity at the surface and overestimate it in the deeper ocean. It highlights the need for better understanding and quantification of processes driving alkalinity distribution and calcium carbonate dissolution and the importance of accounting for biases in model results when evaluating potential ocean alkalinity enhancement experiments.
Yonghong Zheng, Huanfeng Shen, Rory Abernethy, and Rob Wilson
Biogeosciences, 20, 3481–3490, https://doi.org/10.5194/bg-20-3481-2023, https://doi.org/10.5194/bg-20-3481-2023, 2023
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Investigations in central and western China show that tree ring inverted latewood intensity expresses a strong positive relationship with growing-season temperatures, indicating exciting potential for regions south of 30° N that are traditionally not targeted for temperature reconstructions. Earlywood BI also shows good potential to reconstruct hydroclimate parameters in some humid areas and will enhance ring-width-based hydroclimate reconstructions in the future.
Stefano Potter, Sol Cooperdock, Sander Veraverbeke, Xanthe Walker, Michelle C. Mack, Scott J. Goetz, Jennifer Baltzer, Laura Bourgeau-Chavez, Arden Burrell, Catherine Dieleman, Nancy French, Stijn Hantson, Elizabeth E. Hoy, Liza Jenkins, Jill F. Johnstone, Evan S. Kane, Susan M. Natali, James T. Randerson, Merritt R. Turetsky, Ellen Whitman, Elizabeth Wiggins, and Brendan M. Rogers
Biogeosciences, 20, 2785–2804, https://doi.org/10.5194/bg-20-2785-2023, https://doi.org/10.5194/bg-20-2785-2023, 2023
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Here we developed a new burned-area detection algorithm between 2001–2019 across Alaska and Canada at 500 m resolution. We estimate 2.37 Mha burned annually between 2001–2019 over the domain, emitting 79.3 Tg C per year, with a mean combustion rate of 3.13 kg C m−2. We found larger-fire years were generally associated with greater mean combustion. The burned-area and combustion datasets described here can be used for local- to continental-scale applications of boreal fire science.
V. Rachel Chimuka, Claude-Michel Nzotungicimpaye, and Kirsten Zickfeld
Biogeosciences, 20, 2283–2299, https://doi.org/10.5194/bg-20-2283-2023, https://doi.org/10.5194/bg-20-2283-2023, 2023
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We propose a new method to quantify carbon cycle feedbacks under negative CO2 emissions. Our method isolates the lagged carbon cycle response to preceding positive emissions from the response to negative emissions. Our findings suggest that feedback parameters calculated with the novel approach are larger than those calculated with the conventional approach whereby carbon cycle inertia is not corrected for, with implications for the effectiveness of carbon dioxide removal in reducing CO2 levels.
Marcus Breil, Annabell Weber, and Joaquim G. Pinto
Biogeosciences, 20, 2237–2250, https://doi.org/10.5194/bg-20-2237-2023, https://doi.org/10.5194/bg-20-2237-2023, 2023
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A promising strategy for mitigating burdens of heat extremes in Europe is to replace dark coniferous forests with brighter deciduous forests. The consequence of this would be reduced absorption of solar radiation, which should reduce the intensities of heat periods. In this study, we show that deciduous forests have a certain cooling effect on heat period intensities in Europe. However, the magnitude of the temperature reduction is quite small.
Gesche Blume-Werry, Jonatan Klaminder, Eveline J. Krab, and Sylvain Monteux
Biogeosciences, 20, 1979–1990, https://doi.org/10.5194/bg-20-1979-2023, https://doi.org/10.5194/bg-20-1979-2023, 2023
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Northern soils store a lot of carbon. Most research has focused on how this carbon storage is regulated by cold temperatures. However, it is soil organisms, from minute bacteria to large earthworms, that decompose the organic material. Novel soil organisms from further south could increase decomposition rates more than climate change does and lead to carbon losses. We therefore advocate for including soil organisms when predicting the fate of soil functions in warming northern ecosystems.
Koramanghat Unnikrishnan Jayakrishnan and Govindasamy Bala
Biogeosciences, 20, 1863–1877, https://doi.org/10.5194/bg-20-1863-2023, https://doi.org/10.5194/bg-20-1863-2023, 2023
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Afforestation and reducing fossil fuel emissions are two important mitigation strategies to reduce the amount of global warming. Our work shows that reducing fossil fuel emissions is relatively more effective than afforestation for the same amount of carbon removed from the atmosphere. However, understanding of the processes that govern the biophysical effects of afforestation should be improved before considering our results for climate policy.
Jens Hartmann, Niels Suitner, Carl Lim, Julieta Schneider, Laura Marín-Samper, Javier Arístegui, Phil Renforth, Jan Taucher, and Ulf Riebesell
Biogeosciences, 20, 781–802, https://doi.org/10.5194/bg-20-781-2023, https://doi.org/10.5194/bg-20-781-2023, 2023
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CO2 can be stored in the ocean via increasing alkalinity of ocean water. Alkalinity can be created via dissolution of alkaline materials, like limestone or soda. Presented research studies boundaries for increasing alkalinity in seawater. The best way to increase alkalinity was found using an equilibrated solution, for example as produced from reactors. Adding particles for dissolution into seawater on the other hand produces the risk of losing alkalinity and degassing of CO2 to the atmosphere.
Damian L. Arévalo-Martínez, Amir Haroon, Hermann W. Bange, Ercan Erkul, Marion Jegen, Nils Moosdorf, Jens Schneider von Deimling, Christian Berndt, Michael Ernst Böttcher, Jasper Hoffmann, Volker Liebetrau, Ulf Mallast, Gudrun Massmann, Aaron Micallef, Holly A. Michael, Hendrik Paasche, Wolfgang Rabbel, Isaac Santos, Jan Scholten, Katrin Schwalenberg, Beata Szymczycha, Ariel T. Thomas, Joonas J. Virtasalo, Hannelore Waska, and Bradley A. Weymer
Biogeosciences, 20, 647–662, https://doi.org/10.5194/bg-20-647-2023, https://doi.org/10.5194/bg-20-647-2023, 2023
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Groundwater flows at the land–ocean transition and the extent of freshened groundwater below the seafloor are increasingly relevant in marine sciences, both because they are a highly uncertain term of biogeochemical budgets and due to the emerging interest in the latter as a resource. Here, we discuss our perspectives on future research directions to better understand land–ocean connectivity through groundwater and its potential responses to natural and human-induced environmental changes.
Morgan Sparey, Peter Cox, and Mark S. Williamson
Biogeosciences, 20, 451–488, https://doi.org/10.5194/bg-20-451-2023, https://doi.org/10.5194/bg-20-451-2023, 2023
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Accurate climate models are vital for mitigating climate change; however, projections often disagree. Using Köppen–Geiger bioclimate classifications we show that CMIP6 climate models agree well on the fraction of global land surface that will change classification per degree of global warming. We find that 13 % of land will change climate per degree of warming from 1 to 3 K; thus, stabilising warming at 1.5 rather than 2 K would save over 7.5 million square kilometres from bioclimatic change.
Huanhuan Wang, Chao Yue, and Sebastiaan Luyssaert
Biogeosciences, 20, 75–92, https://doi.org/10.5194/bg-20-75-2023, https://doi.org/10.5194/bg-20-75-2023, 2023
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This study provided a synthesis of three influential methods to quantify afforestation impact on surface temperature. Results showed that actual effect following afforestation was highly dependent on afforestation fraction. When full afforestation is assumed, the actual effect approaches the potential effect. We provided evidence the afforestation faction is a key factor in reconciling different methods and emphasized that it should be considered for surface cooling impacts in policy evaluation.
Ryan S. Padrón, Lukas Gudmundsson, Laibao Liu, Vincent Humphrey, and Sonia I. Seneviratne
Biogeosciences, 19, 5435–5448, https://doi.org/10.5194/bg-19-5435-2022, https://doi.org/10.5194/bg-19-5435-2022, 2022
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The answer to how much carbon land ecosystems are projected to remove from the atmosphere until 2100 is different for each Earth system model. We find that differences across models are primarily explained by the annual land carbon sink dependence on temperature and soil moisture, followed by the dependence on CO2 air concentration, and by average climate conditions. Our insights on why each model projects a relatively high or low land carbon sink can help to reduce the underlying uncertainty.
Cited articles
Abu-Zied, R. H., Al-Dubai, T. A., and Bantan, R. A.: Environmental
conditions of shallow waters alongside the southern Corniche of Jeddah based
on benthic foraminifera, physico-chemical parameters and heavy metals, J.
Foramin. Res., 46, 149–170, https://doi.org/10.2113/gsjfr.46.2.149, 2016.
Amergian, K. E., Beckwith, S., Gfatter, C., Selden, C., and Hallock, P.: Can
areas of high alkalinity freshwater discharge provide potential refugia for
marine calcifying organisms?, J. Foramin. Res., 52, 63–76,
https://doi.org/10.2113/gsjfr.52.1.60, 2022.
Back, W. and Hanshaw, B. B.: Comparison of chemical hydrogeology of the
carbonate peninsulas of Florida and Yucatan, J. Hydrol., 10, 330–368,
https://doi.org/10.1016/0022-1694(70)90222-2, 1970.
Back, W., Hanshaw, B. B., Pyle, T. E., Plummer, L. N., and Weidie, A. E.:
Geochemical significance of groundwater discharge and carbonate solution to
the formation of Caleta Xel Ha, Quintana Roo, Mexico, Water Resour. Res.,
19, 1521–1535, https://doi.org/10.1029/WR015I006P01521,
1979.
Barbosa, C. F., Prazeres, M., Padovani, B., and Seoane, J. C. S.:
Foraminiferal assemblage and reef check census in coral reef health
monitoring of East Brazilian margin, Mar. Micropaleontol., 73,
62–69, https://doi.org/10.1016/j.marmicro.2009.07.002, 2009.
Barbosa, C. F., Ferreira, B. P., Seoane, J. C. S., Oliveira-Silva, P.,
Gaspar, A. L. B., Cordeiro, R. C., and Soares-Gomes, A.: Foraminifer-based
coral reef health assessment for southwestern Atlantic offshore
archipelagos, Brazil, J. Foramin. Res., 42, 169–183,
https://doi.org/10.2113/gsjfr.42.2.169, 2012.
Beddows, P. A., Smart, P. L., Whitaker, F. F., and Smith, S. L.: Decoupled
fresh – saline groundwater circulation of a coastal carbonate aquifer:
Spatial patterns of temperature and specific electrical conductivity, J.
Hydrol., 346, 18–32, https://doi.org/10.1016/j.jhydrol.2007.08.013, 2007.
Bender, H.: Test structure and classification in agglutinated Foraminifera,
in: Proceedings
of the Fourth International Workshop on Agglutinated Foraminifera, edited by: Kaminski, M. A., Geroch, S., and Gasiñski, M. A.,
Kraków Poland, September 12–19, 1993, 27–70, Grzybowski Foundation,
Special Publication, 3, http://gf.tmsoc.org/Spec-Publ-3.html
(last access: 17 November 2022), 1995.
Bender, H. and Hemleben, C.: Constructional aspects in test formation of
some agglutinated foraminifera, Abh. Geol. B.-A., 41, 13–22, 1988.
Bernhard, J. M., Barry, J. P., Buck, K. R., and Starczak, V. R.: Impact of
intentionally injected carbon dioxide hydrate on deep-sea benthic
foraminiferal survival, Glob. Change Biol., 15, 2078–2088, https://doi.org/10.1111/j.1365-2486.2008.01822.x, 2009.
Bernhard, J. M., Wit, J. C., Starczak, V. R., Beaudoin, D. J., Phalen, W. G.,
and Mccorkle, D. C.: Impacts of multiple stressors on a benthic foraminiferal
community: a long-term experiment assessing response to ocean acidification,
hypoxia and warming, Front. Mar. Sci., 8, 1–18, https://doi.org/10.3389/fmars.2021.643339, 2021.
Clarke, K. R. and Gorley, R. N.: PRIMER v6: User manual/tutorial, PRIMER-E
Ltd., Plymouth Marine Laboratory, UK, 2006.
Coronado, C., Candela, J., Igresias-Prieto, R., Sheinbaum, J., López,
M., and Ocampo-Torres, F. J.: On the circulation in the Puerto Morelos fringing
reef lagoon, Coral Reefs, 26, 149–163, https://doi.org/10.1007/s00338-006-0175-9, 2008.
Cottey, T. L. and Hallock, P.: Test surface degradation in Archaias angulatus, J. Foramin.
Res., 8, 187–202, https://doi.org/10.2113/gsjfr.18.3.187, 1988.
Crook, E. D., Potts, D., Hernandez, L., and Paytan, A.: Calcifying coral
abundance near low-pH springs: implications for future ocean acidification,
Coral Reefs, 31, 239–245, https://doi.org/10.1007/s00338-011-0839-y, 2012.
Crook, E. D., Cohen, A. L., Rebolledo-Vieyra, M., Hernandez, L., and Paytan,
A.: Reduced calcification and lack of acclimatization by coral colonies
growing in areas of persistent natural acidification, P. Natl. Acad. Sci. USA, 110,
11044–11049, https://doi.org/10.1073/pnas.1301589110, 2013.
Crook, E. D., Kroeker, K. J., Potts, D. C., and Rebolledo-Vieyra, M.:
Recruitment and succession in a tropical benthic community in response to
in-situ ocean acidification, PLoS ONE, 11, e0146707,
https://doi.org/10.1371/journal.pone.0146707, 2016.
Culver, S. J. and Buzas, M. A.: Distribution of Recent benthic foraminifera
in the Caribbean area, Smithsonian Institution Press, Washington, https://doi.org/10.5479/si.01960768.14.1, 1982.
Cushman, A.: The Foraminifera of the Atlantic Ocean pt. 8: Rotaliidae, Amphisteginidae, Calcarinidae, Cymbaloporettidae, Globorotaliidae, Anomalinidae, Planorbulinidae, Rupertiidae, and Homotremidae, Bulletin of the United States National Museum, 1–179, https://doi.org/10.5479/si.03629236.104.7, 1931.
De Goeyse, S., Webb, A. E., Reichart, G. J., and De Nooijer, L. J.: Carbonic
anhydrase is involved in calcification by the benthic foraminifer
Amphistegina lessonii, Biogeosciences, 18, 393–401, https://doi.org/10.5194/bg-18-393-2021, 2021.
De Nooijer, L. J., Langer, G., Nehrke, G., and Bijma, J.:
Physiological controls on seawater uptake and calcification in the benthic
foraminifer Ammonia tepida, Biogeosciences, 6, 2669–2675, https://doi.org/10.5194/bg-6-2669-2009, 2009.
Di Bella, L., Conte, A. M., Conti, A., Esposito, V., Gaglioti, M., Ingrassia,
M., De Vittor, C., and Bigi, S.: Potential resilience to ocean acidification of
benthic foraminifers living in Posidonia oceanica Meadows: The case of the shallow venting
site of Panarea, Geosciences, 12, 184, https://doi.org/10.3390/geosciences12050184, 2022.
Dias, B. B., Hart, M. B., Smart, C. W., and Hall-Spencer, J. M.: Modern
seawater acidification: the response of foraminifera to high-CO2
conditions in the Mediterranean Sea, J. Geol. Soc. Lond., 167, 843–846,
https://doi.org/10.1144/0016-76492010-050, 2010.
Dickson, A. G., Sabine, C. L., and Christian, J. R.: Guide to best practices
for ocean CO2 measurements, North Pacific Marine Science Organization,
Sidney, BC, Canada, ISBN: 1-897176-07-4, 2007.
Doney, S. C., Busch, D. S., Cooley, S. R., and Kroeker, K. J.: The impacts of
ocean acidification on marine ecosystems and reliant human communities,
Annu. Rev. Environ. Resour., 45, 83–112, https://doi.org/10.1146/annurev-environ-012320-083019, 2020.
Dong, S., Lei, Y., Li, T., and Jian, Z.: Changing structure of benthic
foraminiferal communities due to declining pH: Results from laboratory
culture experiments, Sci. China Earth Sci., 62, 1151–1166, https://doi.org/10.1007/s11430-018-9321-6, 2019.
Dong, S., Lei, Y., Li, T., and Jian, Z.: Response of benthic foraminifera to
pH changes: Community structure and morphological transformation studies
from a microcosm experiment, Mar. Micropaleontol., 156, 101819,
https://doi.org/10.1016/j.marmicro.2019.101819, 2020.
Doo, S. S., Hamylton, S., Finfer, J., and Byrne, M.: Spatial and temporal
variation in reef-scale carbonate storage of large benthic foraminifera: a
case study on One Tree Reef, Coral Reefs, 36, 293–303, https://doi.org/10.1007/s00338-016-1506-0, 2016.
Doo, S. S., Leplastrier, A., Graba-Landry, A., Harianto, J., Coleman, R. A.,
and Byrne, M.: Amelioration of ocean acidification and warming effects through
physiological buffering of a macroalgae, Ecol. Evol., 10, 8465–8475,
https://doi.org/10.1002/ece3.6552, 2020.
Engel, B. E., Hallock, P., Price, R. E., and Pichler, T.: Shell dissolution
in larger benthic foraminifers exposed to pH and temperature extremes:
Results from an in-situ experiment, J. Foramin. Res., 45,
190–203, https://doi.org/10.2113/gsjfr.45.2.190, 2015.
Escudero, M., Mendonza, E., and Silva, R.: Micro sand engine beach
stabilization strategy at Puerto Morelos, Mexico, J. Mar. Sci, 8, 247,
https://doi.org/10.3390/jmse8040247, 2020.
Eyre, B. D., Cyronak, T., Drupp, P., De Carlos, E. H., Sach, J. P., and
Andersson, A. J.: Coral reefs will transition to net dissolving before end of
century, Science, 359, 908–911, https://doi.org/10.1126/science.aao1118, 2018.
Fabricius, K. E., Langdon, C., Uthicke, S., Humphrey, C., Noonan, S., De`ath,
G., Okazaki, R., Muehllehner, N., Glas, M. S., and Lough, J. M.: Losers and
winners in coral reefs acclimatized to elevated carbon dioxide
concentrations, Nat. Clim. Change, 1, 165–169, https://doi.org/10.1038/NCLIMATE1122, 2011.
Fujita, K., Hikami, M., Suzuki, A., Kuroyanagi, A., Sakai, K., Kawahata, H.,
and Nojiri, Y.: Effects of ocean acidification on calcification of
symbiont-bearing reef foraminifers, Biogeosciences, 8, 2089–2098, https://doi.org/10.5194/bg-8-2089-2011, 2011.
Geerken, E., De Nooijer, L. J., Toyofuku, T., Roepert, A., Middelburg, J.
J., Kienhuis, M. V. M., Nagai, Y., Polerecky, L., and Reichart, G. J.: High
precipitation rates characterize biomineralization in the benthic
foraminifer Ammonia beccarii, Geochim. Cosmochim. Ac., 318, 70–82,
https://doi.org/10.1016/j.gca.2021.11.026, 2022.
Girard, E., B., Estradivari, Ferse, S., Ambo-Rappe, R., Jompa, J., and
Renema, W.: Dynamics of large benthic foraminiferal assemblages: A tool to
foreshadow reef degradation?, Environ. Pollut., 811, 151396, https://doi.org/10.1016/j.scitotenv.2021.151396, 2022.
Gischler, E. and Möder, A.: Modern benthic foraminifera on Banco
Chinchorro, Quintana Roo, Mexico, Facies, 55, 27–35,
https://doi.org/10.1007/s10347-008-0162-4, 2009.
Glas, M. S., Fabricius, K. E., De Beer, D., and Uthicke, S.: The O2, pH and
Ca2+ Microenvironment of Benthic Foraminifera in a High CO2 World,
PLOS ONE, 7, e50010, https://doi.org/10.1371/journal.pone.0050010, 2012.
Hallock, P.: Larger foraminifera: A tool for paleoenvironmental Analysis of
Cenozoic Carbonate Depositional Facies, Palaios, 1, 55–64, 1986.
Hallock, P., Lidz, B. H., Burkhard-Cockey, E. M., and Donnelly, K. B.:
Foraminifera as bioindicators in coral reef assessment and monitoring: The
FORAM Index, Environ. Monit. Assess., 81, 221–238,
https://doi.org/10.1023/A:1021337310386, 2003.
Haynert, K., Schönfeld, J., Polovodova-Asteman, I., and Thomsen, J.: The benthic foraminiferal community in a naturally CO2-rich coastal habitat of the southwestern Baltic Sea, Biogeosciences, 9, 4421–4440, https://doi.org/10.5194/bg-9-4421-2012, 2012.
Hernandez-Terrones, L. M., Street, J., Null, K., and Paytan, A.: Groundwater
chemistry and Sr isotope ratios shed light on connectivity and water-rock
interactions in the coastal aquifer of the Caribbean coast, Mexico, Cont.
Shelf Res., 212, 104293, https://doi.org/10.1016/j.csr.2020.104293, 2021.
Hughes, T. P., Barnes, M. L., Bellwood, D. R., Cinner, J. E., Cumming, G.
S., Jackson, J. B.C., Kleypas, J., Van De Leemput, I. A., Lough, J. M.,
Morrison, T. H., Palumbi, S. R., Van Nes, E. H., and Scheffer, M.: Coral
reefs in the Anthropocene, Nature, 546, 82–90, https://doi.org/10.1038/nature22901, 2017.
IPCC: Climate Change 2021: The Physical Science Basis, contribution of
working group I to the sixth assessment report of the intergovernmental
panel on climate change, edited by: Masson-Delmotte, V., Zhai, P., Pirani, A.,
Connors, S. L., Péan, C., Berger, S., Caud, N., Chen, Y., Goldfarb, L., Gomis, M. I.,
Huang, M., Leitzell, K., Lonnoy, E., Matthews, J. B. R., Maycock, T. K.,
Waterfield, T., Yelekçi, O., Yu, R., and Zhou, B., Cambridge University
Press, https://doi.org/10.1017/9781009157896, 2021.
Iwasaki, S., Kimoto, K., Okazaki, Y., and Ikehara, M.: X-ray micro-CT
scanning of tests of three planktic foraminiferal species to clarify
dissolution process and progress, Geochem. Geophy. Geosy., 20, 6051–6065, https://doi.org/10.1029/2019GC008456, 2019.
Jones, R. W.: The challenger foraminifera – The Natural History Museum.
Oxford University Press, London, ISBN: 0198540965, 1994.
Kawahata, H., Fujita, K., Iguchi, A., Inoue, M., Iwasaki, S., Kuroyanagi,
A., Maeda, A., Manaka, T., Moriya, K., Takagi, H., Toyofuku, T., Yoshimura,
T., and Suzuki, A.: Perspective on the response of marine calcifiers to
global warming and ocean acidification — Behavior of corals and
foraminifera in a high CO2 world “hot house”, Prog. Earth Planet.
Sci., 6, 1–37, https://doi.org/10.1186/s40645-018-0239-9,
2019.
Knorr, P. O., Robbins, L. L., Harries, P. J., Hallock, P., and Wynn, J.:
Response of the miliolid Archaias angulatus to simulated ocean acidification, J. Foramin.
Res., 45, 109–127, https://doi.org/10.2113/gsjfr.45.2.109,
2015.
Koehler-Rink, S. and Kuehl, M.: Microsensor studies of photosynthesis and
respiration in larger symbiotic foraminifera. I The physico-chemical
microenvironment of Marginopora vertebralis, Amphistegina lobifera and Amphisorus hemprichii, Mar. Biol., 137, 473–486, https://doi.org/10.1007/s002270000335, 2000.
Kroeker, K. J., Kordas, R. L., Crim, R., Hendriks, I. E., Ramajo, L., Singh,
G. S., Duarte, C. M., and Gattuso, J. P.: Impacts of ocean acidification on
marine organisms: quantifying sensitivities and interaction with warming,
Glob. Change Biol., 19, 1884–1896,
https://doi.org/10.1111/gcb.12179, 2013.
Kuroyanagi, A., Iriem T., Kinoshita, S., Kawahata, H., Suzuki, A., Nishi,
H., Sasaki, O., Takashima, R., and Fujita, K.: Decrease in volume and
density of foraminiferal shells with progressing ocean acidification, Sci.
Rep., 11, 19988, https://doi.org/10.1038/s41598-021-99427-1,
2021.
Kwiatkowski, L., Torres, O., Bopp, L., Aumont, O., Chamberlain, M., Christian, J. R., Dunne, J. P., Gehlen, M., Ilyina, T., John, J. G., Lenton, A., Li, H., Lovenduski, N. S., Orr, J. C., Palmieri, J., Santana-Falcón, Y., Schwinger, J., Séférian, R., Stock, C. A., Tagliabue, A., Takano, Y., Tjiputra, J., Toyama, K., Tsujino, H., Watanabe, M., Yamamoto, A., Yool, A., and Ziehn, T.: Twenty-first century ocean warming, acidification, deoxygenation, and upper-ocean nutrient and primary production decline from CMIP6 model projections, Biogeosciences, 17, 3439–3470, https://doi.org/10.5194/bg-17-3439-2020, 2020.
Langer, M. R.: Assessing the contribution of foraminiferan protists to
global ocean carbonate production, J. Eukaryotic Microbiol., 55,
163–169, https://doi.org/10.1111/j.1550-7408.2008.00321.x,
2008.
Langer, M. R., Lipps, J. H., Silk, M. T., and Lipps, J. H. Global ocean
carbonate and carbon dioxide production: the role of reef foraminifera, J.
Foramin. Res., 27, 271–277, https://doi.org/10.2113/gsjfr.27.4.271, 1997.
Lida, Y., Takatani, Y., Kojima, A., and Ishii, M.: Global trends of ocean
CO2 sink and ocean acidification: an observationbased
reconstruction of surface ocean inorganic carbon variables, J. Oceanogr.,
77, 323–358, https://doi.org/10.1007/s10872-020-00571-5, 2021.
Lueker, T. J., Dickson, A. G., and Keeling, C. D.: Ocean pCO2
calculated from dissolved inorganic carbon, alkalinity, and equations for K1
and K2: validation based on laboratory measurements of CO2 in gas and
seawater at equilibrium, Mar. Chem., 70, 105–119, https://doi.org/10.1016/S0304-4203(00)00022-0, 2000.
Lüthi, D., Le Floch, M., Bereiter, B., Blunier, T., Barnola, J. M.,
Siegenthaler, U., Raynaud, D., Jouzel, J., Fischer, H., Kawamura, K., and
Stocker, T. F.: High-resolution carbon dioxide concentration record
650,000-800,000 years before present, Nature, 453, 379–382, https://doi.org/10.1038/nature06949, 2008.
Maiklem, W. R.: Black and brown speckled foraminiferal sand from the
southern part of the Great Barrier Reef, J. Sediment. Res., 34,
1023–1030, https://doi.org/10.1306/74D71820-2B21-11D7-8648000102C1865D, 1967.
Martin, R. E.: Habitat and distribution of the foraminifer Archaias angulatus (Fichtel and
Moll) (Miliolina, Soritidae), northern Florida Keys, J. Foramin. Res., 16,
3, 201–206, https://doi.org/10.2113/gsjfr.16.3.201, 1986.
Martinez, A., Hernández-Terrones, L., Rebolledo-Vieyra, M., and Paytan,
A.: Impact of carbonate saturation on large Caribbean benthic foraminifera
assemblages, Biogeosciences, 15, 6819–6832, https://doi.org/10.5194/bg-15-6819-2018, 2018.
Martinez, A., Crook, E. D., Barshis, D. J., Potts, D. C., Rebolledo-Vieyra,
M., Hernandez, L., and Paytan, A.: Species-specific calcification response
of Caribbean corals after 2-year transplantation to a low aragonite
saturation submarine spring, Proc. R. Soc. B, 286, 20190572,
https://doi.org/10.1098/rspb.2019.0572, 2019.
McIntyre-Wressnig, A., Bernhard, J., M., McCorkle, D., C., and Hallock, P.:
Non-lethal effects of ocean acidification on the symbiont-bearing benthic
foraminifer Amphistegina gibbosa, Mar. Ecol.-Prog. Ser., 472, 45–60, https://doi.org/10.3354/meps09918, 2013.
Milker, Y. and Schmiedl, G.: A taxonomic guide to modern benthic shelf
foraminifera of the western Mediterranean Sea, Palaeontol. Electronica,
15, 1–134, https://doi.org/10.26879/271, 2012.
Moodley, L., Boschker, H. T. S., Middelburg, J. J., Pel, R., Herman, P. M.
J., De Deckere, E., and Heip, C. H. R.: Ecological significance of benthic
foraminifera: 13C Labelling experiments, Mar. Ecol. Prog. Ser., 202,
289–295, https://doi.org/10.3354/meps202289, 2000.
Murray, J. W.: Ecology and applications of benthic foraminifera. Cambridge
University Press, Cambridge, New York, ISBN: 9780511535529, 2006.
Narayan, G. R., Reymond, C. E., Stuhr, M., Doo, S., Schmidt, C., Mann, T.,
and Westphal, H.: Response of large benthic foraminifera to climate and
local changes: Implications for future carbonate production, Sedimentology,
69, 121–161, https://doi.org/10.1111/sed.12858, 2021.
Nehrke, G., Keul, N., Langer, G., De Nooijer, L. J., Bijma, J., and Meibom,
A.: A new model for biomineralization and trace-element signatures of
Foraminifera tests, Biogeosciences, 10, 6759–6767, https://doi.org/10.5194/bg-10-6759-2013, 2013.
Null, K. A., Knee, K. L., Crook, E. D., Sieyes, N. R., Rebolledo-Vieyra, M.,
Hernández-Terrones, L., and Paytan, A.: Composition and fluxes of
submarine groundwater along the Caribbean coast of the Yucatan Peninsula,
Cont. Shelf Res., 77, 38–50, https://doi.org/10.1016/j.csr.2014.01.011, 2014.
Penã, V., Harvey, B. P., Agostini, S., Porzio, L., Milazzo, M., Horta,
P., Gall, L. L., and Hall-Spencer, J. M.: Major loss of coralline algal
diversity in response to ocean acidification, Glob. Change Biol., 27,
4785–4798, https://doi.org/10.1111/gcb.15757, 2021.
Perry, E., Velazquez-Oliman, G., and Marin, L.: The hydrogeochemistry of the
karst aquifer system of the northern Yucatan peninsula, Mexico, Int. Geol.
Rev., 44, 191–221, https://doi.org/10.2747/0020-6814.44.3.191,
2002.
Peters, G. P., Andrew, R. M., Canadell, J. G., Friedlingstein, P., Jackson,
R. B., Korsbakken, J. I., Le Quéré, C., and Peregon, A.: Carbon
dioxide emissions continue to grow amidst slowly emerging climate policies,
Nat. Clim. Change, 10, 3–6, https://doi.org/10.1038/s41558-019-0659-6, 2020.
Petit, J. R., J. Jouzel, Raynaud, D., Barnola, J. M., Basile, I., Bender,
M., Chappellaz, J., Davis, M., Delaygue, G., Delmotte, M., Kotlyakov, V. M.,
Legrand, M., Lipenkov, V. Y., Lorius, C., Pépin, L., Ritz, C., Saltzman,
E., and Stievenard, M: Climate and atmospheric history of the past 420,000
years from the Vostok ice core, Antarctica, Nature, 399, 429–436,
https://doi.org/10.1038/20859, 1999.
Pettit, L. R., Hart, M. B., Medina-Sánchez, A. N., Smart, C. W.,
Rodolfo-Metalpa, R., Hall-Spencer, J. M., and Prol-Ledesma, R. M.: Benthic
foraminifera show some resilience to ocean acidification in the northern
Gulf of California, Mexico, Mar. Pollut. Bull., 73, 452–462,
https://doi.org/10.1016/j.marpolbul.2013.02.011, 2013.
Pettit, L. R., Smart, C. W., Hart, M. B., Milazzo, M., and Hall-Spencer, J.
M.: Seaweed fails to prevent ocean acidification impact on foraminifera
along a shallow-water CO2 gradient, Ecol. Evol., 5, 1–10,
https://doi.org/10.1002/ece3.1475, 2015.
Pierrot, D. E., Levis, E., and Wallace, D. W. R.: MS Excel Program Developed
for CO2 System Calculations, Oak Ridge, TN: U.S. Department of Energy:
Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, https://doi.org/10.3334/CDIAC/otg.CO2SYS_XLS_CDIAC105a,
2006.
Prazeres, M., Uthicke, S., and Pandolfi, J. M.: Ocean acidification induces
biochemical and morphological changes in the calcification process of large
benthic foraminifera, Proc. R. Soc. B, 282, 20142782,
https://doi.org/10.1098/rspb.2014.2782, 2015.
Prazeres, M., Martínez-Colón, M., and Hallock, P.: Foraminifera as
bioindicators of water quality: The FoRAM indez revisited, Environ. Pollut.,
257, 113612, https://doi.org/10.1016/j.envpol.2019.113612,
2020.
Price, N. N., Martz, T. R., Brainard, R. E., and Smith, J. E.: Diel
variability in seawater pH relates to calcification and benthic community
structure on coral reefs, PLoS ONE, 7, e4384, https://doi.org/10.1371/journal.pone.0043843, 2012.
R Core Team: R: A language and environment for statistical computing. R
Foundation for Statistical Computing, Vienna, Austria,
https://www.R-project.org/ (last access: 31 March 2022), 2020.
Sariaslan, N. and Langer, M. R.: Atypical, high-diversity assemblages of foraminifera in a mangrove estuary in northern Brazil, Biogeosciences, 18, 4073–4090, https://doi.org/10.5194/bg-18-4073-2021, 2021.
Schiebel, R.: Planktic foraminiferal sedimentation and the marine calcite
budget, Global Biogeochem. Cy., 16, 3-1–3-21,
https://doi.org/10.1029/2001GB001459, 2002.
Schmidt, C., Kucera, M., and Uthicke, S.: Combined effects of warming and
ocean acidification on coral reef Foraminifera Marginopora vertebralis and Heterostegina depressa, Coral Reefs, 33,
805–818, https://doi.org/10.1007/s00338-014-1151-4, 2014.
Schneider, C. A., Rasband, W. S., and Eliceiri, K. W.: Nih Image to ImageJ:
25 years of image analysis, Nat. Methods, 9, 671–675, https://doi.org/10.1038/nmeth.2089, 2012.
Scott, D. B. and Medioli, F. S.: Living vc. Total foraminiferal populations:
Their relative usefulness in paleoecology, J. Foraminiferal Res., 54, 814–831,
http://www.jstor.org/stable/1304312 (last access: 17 June 2022), 1980.
Stephenson, C. M., Hallock, P., and Kelmo, F.: Foraminiferal assemblage
indices: A comparison of sediment and reef rubble samples from Conch Reef,
Florida, USA, Ecol. Indic., 48, 1–7,
https://doi.org/10.1016/j.ecolind.2014.07.004, 2015.
Stuhr, M., Cameron, L. P., Blank-Landeshammer, B., Reymond, C. E., Doo, S.
S., Westphal, H., Sickmann, A., and Ries, J. B.: Divergent proteomic
responses offer insights into resistant physiological responses of a
reef-foraminifera to climate change scenarios, Oceans, 2, 281–314,
https://doi.org/10.3390/oceans2020017, 2021.
Toyofuku, T., Matsuo, M. Y., De Nooijer, L. J., Nagai, Y., Kawada, S.,
Fujita, K., Reichart, G. J., Nomaki, H., Tsuchiya, M., Sakaguchi, H., and
Kitazato, H.: Proton pumping accompanies calcification in foraminifera, Nat.
Commun., 8, 14145, https://doi.org/10.1038/ncomms14145,
2017.
Uppström, L. R.: The boron/chlorinity ratio of deep-sea water from the
Pacific Ocean, Deep-Sea Res. Oceanogr. Abstr., 21, 161–162, 1974.
Uthicke, S. and Fabricius, K. E.: Productivity gains do not compensate for
reduced calcification under near-future ocean acidification in the
photosynthetic benthic foraminifer species Marginopora vertebralis, Glob. Change Biol., 18,
2781–2791, https://doi.org/10.1111/j.1365-2486.2012.02715.x,
2012.
Uthicke, S., Momigliano, P., and Fabricius, K. E.: High risk of extinction
of benthic foraminifera in this century due to ocean acidification, Sci.
Rep., 3, 1–5, https://doi.org/10.1038/srep01769, 2013.
Vogel, N. and Uthicke, S.: Calcification and photobiology in symbiont-bearing
benthic foraminifera and responses to a high CO2 environment, J. Exp.
Mar. Biol. Ecol, 424/425, 15–24, https://doi.org/10.1016/j.jembe.2012.05.008, 2012.
Wilson, B. and Wilson, J. I.: Shoreline foraminiferal thanatacoenoses around
five eastern Caribbean islands and their environmental and biogeographic
implications, Cont. Shelf Res., 31, 857–866, https://doi.org/10.1016/j.csr.2011.02.010, 2011.
WoRMS Editorial Board: World Register of Marine Species, VLIZ,
https://doi.org/10.14284/170, 2022.
Yamamoto, S., Kayanne, H., Terai, M., Watanabe, A., Kato, K., Negishi, A.,
and Nozaki, K.: Threshold of carbonate saturation state determined by CO2
control experiment, Biogeosciences, 9, 1441–1450,
https://doi.org/10.5194/bg-9-1441-2012, 2012.
Yamano, H., Miyajima, T., and
Koike, I.: Importance of foraminifera for the formation and maintenance of a
coral sand cay: Green Island, Australia, Coral Reefs, 19, 51–58,
https://doi.org/10.1007/s003380050226, 2000.
Yordanova, E. K. and Hohenegger, W.: Taphonomy of Larger Foraminifera:
Relationships between Living Individuals and Empty Tests on Flat Reef Slopes
(Sesoko Island, Japan), FACIES, 46, 169–204, https://doi.org/10.1007/BF02668080, 2002.
Short summary
Our analysis revealed that under the two most conservative acidification projections foraminifera assemblages did not display considerable changes. However, a significant decrease in species richness was observed when pH decreases to 7.7 pH units, indicating adverse effects under high-acidification scenarios. A micro-CT analysis revealed that calcified tests of Archaias angulatus were of lower density in low pH, suggesting no acclimation capacity for this species.
Our analysis revealed that under the two most conservative acidification projections...
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