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Items: 42

1.

Nitrogen isotope evidence for expanded ocean suboxia in the early Cenozoic.

Kast ER, Stolper DA, Auderset A, Higgins JA, Ren H, Wang XT, Martínez-García A, Haug GH, Sigman DM.

Science. 2019 Apr 26;364(6438):386-389. doi: 10.1126/science.aau5784.

PMID:
31023923
2.

The residence time of Southern Ocean surface waters and the 100,000-year ice age cycle.

Hasenfratz AP, Jaccard SL, Martínez-García A, Sigman DM, Hodell DA, Vance D, Bernasconi SM, Kleiven HKF, Haumann FA, Haug GH.

Science. 2019 Mar 8;363(6431):1080-1084. doi: 10.1126/science.aat7067.

PMID:
30846597
3.

Natural forcing of the North Atlantic nitrogen cycle in the Anthropocene.

Wang XT, Cohen AL, Luu V, Ren H, Su Z, Haug GH, Sigman DM.

Proc Natl Acad Sci U S A. 2018 Oct 16;115(42):10606-10611. doi: 10.1073/pnas.1801049115. Epub 2018 Oct 1.

4.

Publisher Correction: Recycled iron fuels new production in the eastern equatorial Pacific Ocean.

Rafter PA, Sigman DM, Mackey KRM.

Nat Commun. 2017 Dec 5;8(1):2018. doi: 10.1038/s41467-017-02138-3.

5.

Recycled iron fuels new production in the eastern equatorial Pacific Ocean.

Rafter PA, Sigman DM, Mackey KRM.

Nat Commun. 2017 Oct 24;8(1):1100. doi: 10.1038/s41467-017-01219-7. Erratum in: Nat Commun. 2017 Dec 5;8(1):2018.

6.

Active Pacific meridional overturning circulation (PMOC) during the warm Pliocene.

Burls NJ, Fedorov AV, Sigman DM, Jaccard SL, Tiedemann R, Haug GH.

Sci Adv. 2017 Sep 13;3(9):e1700156. doi: 10.1126/sciadv.1700156. eCollection 2017 Sep.

7.

Impact of glacial/interglacial sea level change on the ocean nitrogen cycle.

Ren H, Sigman DM, Martínez-García A, Anderson RF, Chen MT, Ravelo AC, Straub M, Wong GTF, Haug GH.

Proc Natl Acad Sci U S A. 2017 Aug 15;114(33):E6759-E6766. doi: 10.1073/pnas.1701315114. Epub 2017 Jul 31.

8.

21st-century rise in anthropogenic nitrogen deposition on a remote coral reef.

Ren H, Chen YC, Wang XT, Wong GTF, Cohen AL, DeCarlo TM, Weigand MA, Mii HS, Sigman DM.

Science. 2017 May 19;356(6339):749-752. doi: 10.1126/science.aal3869.

PMID:
28522534
9.

Life and death of a sewage treatment plant recorded in a coral skeleton δ15N record.

Duprey NN, Wang XT, Thompson PD, Pleadwell JE, Raymundo LJ, Kim K, Sigman DM, Baker DM.

Mar Pollut Bull. 2017 Jul 15;120(1-2):109-116. doi: 10.1016/j.marpolbul.2017.04.023. Epub 2017 May 8.

PMID:
28483141
10.

Deep-sea coral evidence for lower Southern Ocean surface nitrate concentrations during the last ice age.

Wang XT, Sigman DM, Prokopenko MG, Adkins JF, Robinson LF, Hines SK, Chai J, Studer AS, Martínez-García A, Chen T, Haug GH.

Proc Natl Acad Sci U S A. 2017 Mar 28;114(13):3352-3357. doi: 10.1073/pnas.1615718114. Epub 2017 Mar 15.

11.

Photosymbiosis and the expansion of shallow-water corals.

Frankowiak K, Wang XT, Sigman DM, Gothmann AM, Kitahara MV, Mazur M, Meibom A, Stolarski J.

Sci Adv. 2016 Nov 2;2(11):e1601122. eCollection 2016 Nov.

12.

Updates to instrumentation and protocols for isotopic analysis of nitrate by the denitrifier method.

Weigand MA, Foriel J, Barnett B, Oleynik S, Sigman DM.

Rapid Commun Mass Spectrom. 2016 Jun 30;30(12):1365-83. doi: 10.1002/rcm.7570.

PMID:
27197029
13.

No iron fertilization in the equatorial Pacific Ocean during the last ice age.

Costa KM, McManus JF, Anderson RF, Ren H, Sigman DM, Winckler G, Fleisher MQ, Marcantonio F, Ravelo AC.

Nature. 2016 Jan 28;529(7587):519-22. doi: 10.1038/nature16453.

PMID:
26819045
14.

Marine biogenic source of atmospheric organic nitrogen in the subtropical North Atlantic.

Altieri KE, Fawcett SE, Peters AJ, Sigman DM, Hastings MG.

Proc Natl Acad Sci U S A. 2016 Jan 26;113(4):925-30. doi: 10.1073/pnas.1516847113. Epub 2016 Jan 6.

15.

A stagnation event in the deep South Atlantic during the last interglacial period.

Hayes CT, Martínez-García A, Hasenfratz AP, Jaccard SL, Hodell DA, Sigman DM, Haug GH, Anderson RF.

Science. 2014 Dec 19;346(6216):1514-7. doi: 10.1126/science.1256620.

PMID:
25525246
16.

Iron fertilization of the Subantarctic ocean during the last ice age.

Martínez-García A, Sigman DM, Ren H, Anderson RF, Straub M, Hodell DA, Jaccard SL, Eglinton TI, Haug GH.

Science. 2014 Mar 21;343(6177):1347-50. doi: 10.1126/science.1246848.

PMID:
24653031
17.

Nitrogen isotope fractionation by alternative nitrogenases and past ocean anoxia.

Zhang X, Sigman DM, Morel FM, Kraepiel AM.

Proc Natl Acad Sci U S A. 2014 Apr 1;111(13):4782-7. doi: 10.1073/pnas.1402976111. Epub 2014 Mar 17.

18.

Changes in North Atlantic nitrogen fixation controlled by ocean circulation.

Straub M, Sigman DM, Ren H, Martínez-García A, Meckler AN, Hain MP, Haug GH.

Nature. 2013 Sep 12;501(7466):200-3. doi: 10.1038/nature12397. Epub 2013 Aug 21.

PMID:
23965620
19.

Nitrogen losses in anoxic marine sediments driven by Thioploca-anammox bacterial consortia.

Prokopenko MG, Hirst MB, De Brabandere L, Lawrence DJ, Berelson WM, Granger J, Chang BX, Dawson S, Crane EJ 3rd, Chong L, Thamdrup B, Townsend-Small A, Sigman DM.

Nature. 2013 Aug 8;500(7461):194-8. doi: 10.1038/nature12365.

PMID:
23925243
20.

Deglacial pulses of deep-ocean silicate into the subtropical North Atlantic Ocean.

Meckler AN, Sigman DM, Gibson KA, François R, Martínez-García A, Jaccard SL, Röhl U, Peterson LC, Tiedemann R, Haug GH.

Nature. 2013 Mar 28;495(7442):495-8. doi: 10.1038/nature12006. Erratum in: Nature. 2014 Jan 23;505(7484):574.

PMID:
23538831
21.

Two modes of change in Southern Ocean productivity over the past million years.

Jaccard SL, Hayes CT, Martínez-García A, Hodell DA, Anderson RF, Sigman DM, Haug GH.

Science. 2013 Mar 22;339(6126):1419-23. doi: 10.1126/science.1227545.

22.

Eukaryotic assimilatory nitrate reductase fractionates N and O isotopes with a ratio near unity.

Karsh KL, Granger J, Kritee K, Sigman DM.

Environ Sci Technol. 2012 Jun 5;46(11):5727-35. doi: 10.1021/es204593q. Epub 2012 May 23.

PMID:
22534036
23.

Reduced interannual rainfall variability in East Africa during the last ice age.

Wolff C, Haug GH, Timmermann A, Sinninghe Damsté JS, Brauer A, Sigman DM, Cane MA, Verschuren D.

Science. 2011 Aug 5;333(6043):743-7. doi: 10.1126/science.1203724.

24.

Southern Ocean dust-climate coupling over the past four million years.

Martínez-Garcia A, Rosell-Melé A, Jaccard SL, Geibert W, Sigman DM, Haug GH.

Nature. 2011 Aug 3;476(7360):312-5. doi: 10.1038/nature10310.

PMID:
21814203
25.

The polar ocean and glacial cycles in atmospheric CO(2) concentration.

Sigman DM, Hain MP, Haug GH.

Nature. 2010 Jul 1;466(7302):47-55. doi: 10.1038/nature09149. Review.

PMID:
20596012
26.

Removal of nitrite with sulfamic acid for nitrate N and O isotope analysis with the denitrifier method.

Granger J, Sigman DM.

Rapid Commun Mass Spectrom. 2009 Dec;23(23):3753-62. doi: 10.1002/rcm.4307.

PMID:
19908214
27.

Foraminiferal isotope evidence of reduced nitrogen fixation in the ice age Atlantic Ocean.

Ren H, Sigman DM, Meckler AN, Plessen B, Robinson RS, Rosenthal Y, Haug GH.

Science. 2009 Jan 9;323(5911):244-8. doi: 10.1126/science.1165787. Epub 2008 Dec 18.

28.

Carbon dioxide release from the North Pacific abyss during the last deglaciation.

Galbraith ED, Jaccard SL, Pedersen TF, Sigman DM, Haug GH, Cook M, Southon JR, Francois R.

Nature. 2007 Oct 18;449(7164):890-3.

PMID:
17943127
29.

A climate-driven switch in plant nitrogen acquisition within tropical forest communities.

Houlton BZ, Sigman DM, Schuur EA, Hedin LO.

Proc Natl Acad Sci U S A. 2007 May 22;104(21):8902-6. Epub 2007 May 14.

30.

Triple oxygen isotope analysis of nitrate using the denitrifier method and thermal decomposition of N2O.

Kaiser J, Hastings MG, Houlton BZ, Röckmann T, Sigman DM.

Anal Chem. 2007 Jan 15;79(2):599-607.

PMID:
17222025
31.

Spatial coupling of nitrogen inputs and losses in the ocean.

Deutsch C, Sarmiento JL, Sigman DM, Gruber N, Dunne JP.

Nature. 2007 Jan 11;445(7124):163-7.

PMID:
17215838
32.

Influence of the intertropical convergence zone on the East Asian monsoon.

Yancheva G, Nowaczyk NR, Mingram J, Dulski P, Schettler G, Negendank JF, Liu J, Sigman DM, Peterson LC, Haug GH.

Nature. 2007 Jan 4;445(7123):74-7.

PMID:
17203059
33.

Isotopic evidence for large gaseous nitrogen losses from tropical rainforests.

Houlton BZ, Sigman DM, Hedin LO.

Proc Natl Acad Sci U S A. 2006 Jun 6;103(23):8745-50. Epub 2006 May 25.

34.

Glacial/interglacial changes in subarctic north pacific stratification.

Jaccard SL, Haug GH, Sigman DM, Pedersen TF, Thierstein HR, Röhl U.

Science. 2005 May 13;308(5724):1003-6.

35.

North Pacific seasonality and the glaciation of North America 2.7 million years ago.

Haug GH, Ganopolski A, Sigman DM, Rosell-Mele A, Swann GE, Tiedemann R, Jaccard SL, Bollmann J, Maslin MA, Leng MJ, Eglinton G.

Nature. 2005 Feb 24;433(7028):821-5.

PMID:
15729332
36.

Polar ocean stratification in a cold climate.

Sigman DM, Jaccard SL, Haug GH.

Nature. 2004 Mar 4;428(6978):59-63.

PMID:
14999278
37.

Climate and the collapse of Maya civilization.

Haug GH, Günther D, Peterson LC, Sigman DM, Hughen KA, Aeschlimann B.

Science. 2003 Mar 14;299(5613):1731-5.

38.

Measurement of the oxygen isotopic composition of nitrate in seawater and freshwater using the denitrifier method.

Casciotti KL, Sigman DM, Hastings MG, Böhlke JK, Hilkert A.

Anal Chem. 2002 Oct 1;74(19):4905-12.

PMID:
12380811
39.

A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater.

Sigman DM, Casciotti KL, Andreani M, Barford C, Galanter M, Böhlke JK.

Anal Chem. 2001 Sep 1;73(17):4145-53.

PMID:
11569803
40.

Southward migration of the intertropical convergence zone through the Holocene.

Haug GH, Hughen KA, Sigman DM, Peterson LC, Röhl U.

Science. 2001 Aug 17;293(5533):1304-8.

41.

Glacial/interglacial variations in atmospheric carbon dioxide.

Sigman DM, Boyle EA.

Nature. 2000 Oct 19;407(6806):859-69. Review.

PMID:
11057657
42.

Testosterone levels in early fetal testes of domestic pigs.

Raeside JI, Sigman DM.

Biol Reprod. 1975 Oct;13(3):318-21. No abstract available.

PMID:
1218196

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