Publications of Ralf Schiebel

Pan, X., Zhang, Y., Xue, C., Kuhn, U., Hrabe de Angelis, I., Pöhlker, C., Ditas, J., Heins, L., Aardema, H. M., Slagter, H. A., Calleja, M. L., Dragoneas, A., Walter, D., Nillius, B., Wang, Q., Ma, N., Su, H., Pöschl, U., Haug, G. H., Schiebel, R. and Cheng, Y.: Black Carbon in the Marine Atmosphere: Concentration and Mixing State From Coastal to Remote Atlantic Regions, Journal of Geophysical Research: Atmospheres, 131(3), doi:10.1029/2025JD045346, 2026.

Levy, N., Torfstein, A., Schiebel, R., Chernihovsky, N., Jochum, K. P., Weis, U., Stoll, B. and Haug, G. H.: Monthly element ∕ Ca trends and inter chamber variability in two planktic Foraminifera species: Globigerinoides ruber albus and Turborotalita clarkei from a hypersaline oligotrophic sea, Biogeosciences, 23(3), 1065–1088, doi:10.5194/bg-23-1065-2026, 2026.

Jung, J., Duprey, N. N., Foreman, A. D., D’Olivo, J. P., Pellio, C., Ryu, Y., Murphy, E. L., Romshoo, B., Kersting, D. K., Cardoso, G. O., Wald, T., Fripiat, F., Jimenez, C., Gischler, E., Montagna, P., Alonso-Hernández, C., Gomez-Batista, M., Treinen-Crespo, C., Carriquiry, J., Ong, M. R., Goodkin, N. F., Guppy, R., Aardema, H., Slagter, H., Heins, L., Hrabe de Angelis, I., Bieler, A. L., Yehudai, M., Noël, T. P., James, K., Scholz, D., Hu, C., Barnes, B. B., Pozzer, A., Pöhlker, C., Lelieveld, J., Pöschl, U., Vonhof, H., Haug, G. H., Schiebel, R., Sigman , D. M. and Martinez-Garcia, A.: Equatorial upwelling of phosphorus drives Atlantic N₂ fixation and Sargassum blooms, Nature Geoscience, 18, doi:10.1038/s41561-025-01685-5, 2025.

O’Dea, A., Sellers, A. J., Medina, C. P.-, Díaz, J. P., Bloise, A. G., Pöhlker, C., Chiliński, M. T., Aardema, H. M., Cybulski, J. D., Heins, L., Paton, S. R., Slagter, H. A., Schiebel, R. and Haug, G. H.: Unprecedented suppression of Panama’s Pacific upwelling in 2025, Proceedings of the National Academy of Sciences of the United States of America, 122(36), doi:10.1073/pnas.2512056122, 2025.

Auderset, A., Smart, S. M., Ryu, Y., Marconi, D., Ren, H. A., Heins, L., Vonhof, H., Schiebel, R., Repschläger, J., Sigman , D. M., Haug, G. H. and Martinez-Garcia, A.: Effects of photosymbiosis and related processes on planktic foraminifera-bound nitrogen isotopes in South Atlantic sediments, Biogeosciences, 22(7), 1887–1905, doi:10.5194/bg-22-1887-2025, 2025.

Farmer, J. R., Martinez-Garcia, A., Sentman, L. T., Schiebel, R., Arns, A., Yehudai, M., Tiedemann, R., Sigman, D. M. and Haug, G. H.: Early Pliocene Shoaling of the Central American Seaway Reconstructed From Foraminifera-Bound Nitrogen and Oxygen Isotopes, Paleoceanography and paleoclimatology, 40(4), doi:10.1029/2024PA005043, 2025.

Chaabane, S., de Garidel-Thoron, T., Meilland, J., Sulpis, O., Chalk, T. B., Brummer, G.-J. A., Mortyn, P. G., Giraud, X., Howa, H., Casajus, N., Kuroyanagi, A., Beaugrand, G. and Schiebel, R.: Migrating is not enough for modern planktonic foraminifera in a changing ocean, Nature, 636, 390–396, doi:10.1038/s41586-024-08191-5, 2024.

Aardema, H. M., Slagter, H. A., Hrabe de Angelis, I., Calleja, M. L., Dragoneas, A., Moretti, S., Schuback, N., Heins, L., Walter, D., Weis, U., Haug, G. H. and Schiebel, R.: On the Variability of Phytoplankton Photophysiology Along a Latitudinal Transect in the North Atlantic Surface Ocean, Journal of Geophysical Research: Biogeosciences, 129(9), doi:10.1029/2023JG007962, 2024.

Schiebel, R., Aardema, H. M., Calleja, M. L., Dragoneas, A., Heins, L., Hrabe de Angelis, I., Pöhlker, C., Slagter, H., Vonhof, H., Walter, D., Arns, A. I., Adolphs, N., Auderset, A., Basic, S., Bieler, A., Brüwer, J. D., Chaabane, S., Cheng, Y., Chiliński, M. T., Cybulski, J. D., Disper, T., Duprey, N., Eichele, G., Fiedler, B., Fischer, A., Foreman, A. D., Fuchs, B. M., Galer, S., Härri, J., Jochum, K. P., Jost, A., Jung, J., Kleta, H., Lammel, G., Larink, O., Leibold, P., Martinez-Garcia, A., Moretti, S., Müller, J.-G., Nillius, B., Pan, X., Raj, S. S., Repschläger, J., Rodrigues, E., Ruff, S. E., Schmitt, M., Schmitter, J. L., Lara, A. S., Silva, P., Smart, S. M., Sörgel, M., Stoll, B., Su, H., Vogt, M., Wald, T., Weber, B., Weber, J., Weis, U., Amann, R., Arístegui, J., Dittmar, T., González, M., O’Dea, A., Pöschl, U. and Haug, G. H.: Preface: Special Issue on Probing the Open Ocean With the Research Sailing Yacht Eugen Seibold for Climate Geochemistry, Journal of Geophysical Research: Atmospheres, 129(17), doi:10.1029/2023JD040581, 2024.

Auderset, A., Fripiat, F., Creel, R. C., Oesch, L., Studer, A. S., Repschläger, J., Hathorne, E., Vonhof, H., Schiebel, R., Gordon, L., Lawrence, K., Ren, H. A., Haug, G. H., Sigman, D. M. and Martinez-Garcia, A.: Sea Level Modulation of Atlantic Nitrogen Fixation Over Glacial Cycles, Paleoceanography and paleoclimatology, 39(8), doi:10.1029/2024PA004878, 2024.

Chaabane, S., de Garidel-Thoron, T., Giraud, X., Meilland, J., Brummer, G.-J. A., Jonkers, L., Mortyn, P. G., Greco, M., Casajus, N., Kucera, M., Sulpis, O., Kuroyanagi, A., Howa, H., Beaugrand, G. and Schiebel, R.: Size normalizing planktonic Foraminifera abundance in the water column, Limnology and Oceanography: Methods, 22, doi:10.1002/lom3.10637, 2024.

Fischer, A., Schiebel, R., Jochum, K. P., Heins, L., Arns, A. I., Aardema, H. M., Slagter, H., Calleja, M. L., Levy, N., Stoll, B., Walter, D., Weis, U., Repschläger, J. and Haug, G. H.: Single chamber Mg/Ca analyses of Globigerinoides ruber for paleo-proxy calibration using femtosecond LA-ICP-MS, Scientific Data, 9, doi:10.1038/s41597-024-03402-0, 2024.

Smart, S. M., Schiebel, R., Jochum, K. P., Chaabane, S., Jentzen, A., Repschläger, J., Stoll, B., Weis, U. and Haug, G. H.: Sightings of the Rare Globorotalia Cavernula in the Subantarctic South of Africa: Biogeochemical and Ecological Insights, Journal of Foraminiferal Research, 54(2), 81–94, doi:10.61551/gsjfr.54.2.81, 2024.

Moretti, S., Auderset, A., Deutsch, C., Schmitz, R., Gerber, L., Thomas, E., Luciani, V., Petrizzo, M. R., Schiebel, R., Tripati, A., Sexton, P., Norris, R., D’Onofrio, R., Zachos, J., Sigman, D. M., Haug, G. H. and Martinez-Garcia, A.: Oxygen rise in the tropical upper ocean during the Paleocene-Eocene Thermal Maximum, Science, 383(6684), 727–731, doi:10.1126/science.adh4893, 2024.

Pallacks, S., Ziveri, P., Schiebel, R., Vonhof, H., Rae, J. W. B., Littley, E., Garcia-Orellana, J., Langer, G., Grelaud, M. and Martrat, B.: Anthropogenic acidification of surface waters drives decreased biogenic calcification in the Mediterranean Sea, Communications Earth & Environment, 4, doi:10.1038/s43247-023-00947-7, 2023.

Levy, N., Torfstein, A., Schiebel, R., Chernihovsky, N., Jochum, K. P., Weis, U., Stoll, B. and Haug, G. H.: Temperature Calibration of Elevated Mg/Ca in Planktic Foraminifera Shells From the Hypersaline Gulf of Aqaba, Geochemistry, Geophysics, Geosystems, 24(7), doi:10.1029/2022GC010742, 2023.

Knecht, N. S., Benedetti, F., Elizondo, U. H., Bednarsek, N., Chaabane, S., de Weerd, C., Peijnenburg, K. T. C. A., Schiebel, R. and Vogt, M.: The Impact of Zooplankton Calcifiers on the Marine Carbon Cycle, Global Biogeochemical Cycles, 37(6), doi:10.1029/2022GB007685, 2023.

Chaabane, S., de Garidel-Thoron, T., Giraud, X., Schiebel, R., Beaugrand, G., Brummer, G.-J., Casajus, N., Greco, M., Grigoratou, M., Howa, H., Jonkers, L., Kucera, M., Kuroyanagi, A., Meilland, J., Monteiro, F., Mortyn, G., Almogi-Labin, A., Asahi, H., Avnaim-Katav, S., Bassinot, F., Davis, C. V., Field, D. B., Hernández-Almeida, I., Herut, B., Hosie, G., Howard, W., Jentzen, A., Johns, D. G., Keigwin, L., Kitchener, J., Kohfeld, K. E., Lessa, D. V. O., Manno, C., Marchant, M., Ofstad, S., Ortiz, J. D., Post, A., Rigual-Hernandez, A., Rillo, M. C., Robinson, K., Sagawa, T., Sierro, F., Takahashi, K. T., Torfstein, A., Venancio, I., Yamasaki, M. and Ziveri, P.: The FORCIS database: A global census of planktonic Foraminifera from ocean waters, Scientific Data, 10, doi:10.1038/s41597-023-02264-2, 2023.

Repschläger, J., Weinelt, M., Schneider, R., Blanz, T., Leduc, G., Schiebel, R. and Haug, G. H.: Disentangling multiproxy temperature reconstructions from the subtropical North Atlantic, Frontiers in Ecology and Evolution, 11, doi:10.3389/fevo.2023.1176278, 2023.

Öğretmen, N., Schiebel, R., Jochum, K. P., Galer, S., Leitner, J., Khanolkar, S., Yücel , M., Stoll, B., Weis, U. and Haug, G. H.: High Precision Femtosecond Laser Ablation ICP-MS Measurement of Benthic Foraminiferal Mn-Incorporation for Paleoenvironmental Reconstruction: A Case Study From the Plio-Pleistocene Caribbean Sea, Geochemistry, Geophysics, Geosystems, 23(10), doi:10.1029/2021GC010268, 2022.