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Dive into the research topics where Daniel Mikhail Sigman is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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Collaborations and top research areas from the last five years
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Collaborative Research: US GEOTRACES GP17-ANT: Nitrogen isotope dynamics on the Amundsen Sea continental margin
Sigman, D. M. (PI)
NSF - National Science Foundation
3/1/23 → 2/28/26
Project: Research project
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US GEOTRACES GP17-OCE: Nitrate isotopic signals of the Southern Ocean's circulation and biogeochemistry
Sigman, D. M. (PI)
NSF - National Science Foundation
10/1/21 → 9/30/25
Project: Research project
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Collaborative Research: Bounding global ice volumes over the last glacial cycle using reconstructions of Bering Strait flooding
Sigman, D. M. (PI)
NSF - National Science Foundation
7/1/21 → 5/31/23
Project: Research project
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A High-density, High-precision Zonal Section of Nitrate Isotopes Across the South Indian Ocean
Sigman, D. M. (PI)
NSF - National Science Foundation
10/1/19 → 9/30/24
Project: Research project
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Australopithecus at Sterkfontein did not consume substantial mammalian meat
Lüdecke, T., Leichliter, J. N., Stratford, D., Sigman, D. M., Vonhof, H., Haug, G. H., Bamford, M. K. & Martínez-García, A., Jan 17 2025, In: Journal of Bio-X Research. 387, 6731, p. 309-314 6 p.Research output: Contribution to journal › Article › peer-review
4 Scopus citations -
Early Pliocene Shoaling of the Central American Seaway Reconstructed From Foraminifera-Bound Nitrogen and Oxygen Isotopes
Farmer, J. R., Martínez-García, A., Sentman, L. T., Schiebel, R., Arns, A., Yehudai, M., Tiedemann, R., Sigman, D. M. & Haug, G. H., Apr 2025, In: Paleoceanography and Paleoclimatology. 40, 4, e2024PA005043.Research output: Contribution to journal › Article › peer-review
Open Access -
Effects of photosymbiosis and related processes on planktic foraminifera-bound nitrogen isotopes in South Atlantic sediments
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. & Martínez-García, A., Apr 17 2025, In: Biogeosciences. 22, 7, p. 1887-1905 19 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Nitrogen isotope ratios across the Bermuda coral reef: implications for coral nitrogen sources and the coral-bound nitrogen isotope proxy
Luu, V. H., Ryu, Y., Darling, W. S., Oleynik, S., de Putron, S. J., Cohen, A. L., Wang, X. T. & Sigman, D. M., 2025, In: Frontiers in Marine Science. 12, 1554418.Research output: Contribution to journal › Article › peer-review
Open Access -
Nitrogen stable isotope fractionation by biological nitrogen fixation reveals cellular nitrogenase is diffusion limited
Han, E., Kopf, S. H., Maloney, A. E., Ai, X. E., Sigman, D. M. & Zhang, X., Mar 1 2025, In: PNAS Nexus. 4, 3, pgaf061.Research output: Contribution to journal › Article › peer-review
Open Access