Wankel SD, W Ziebis, C Buchwald, C Charoenpong, D de Beer, J Dentinger, Z Xu, and K Zengler. 2017. Evidence for fungal and chemodenitrification based N2O flux from nitrogen impacted coastal sediments. Nature Communications.
Grabb KC, C Buchwald, C Hansel and SD Wankel. 2017. A dual nitrite isotopic investigation of chemodenitrification by mineral-associated Fe(II) and its production of nitrous oxide. Geochimica et Cosmochimica Acta. 196:388-402.
Sylvan JB, SD Wankel, DE LaRowe, C Charoenpong, JA Huber, CL Moyer and KJ Edwards. 2017. Evidence for microbial mediation of subseafloor nitrogen redox processes at Loihi Seamount, Hawaii. Geochimica et Cosmochimica Acta . DOI:/10.1016/j.gca.2016.10.029.
Granger J and SD Wankel. 2016. Isotopic overprinting of nitrification on denitrification as a ubiquitous and unifying feature of environmental nitrogen cycling. 113:42 Proceedings of the National Academy of Sciences of the United States of America. DOI: 10.1073/pnas.1601383113
Hurley SJ, FJ Elling, M Könneke, C Buchwald, SD Wankel, AE Santoro, JS Lipp, K-U Hinrichs and A Pearson. 2016. Nitrification rate is a fundamental control on archaeal lipid composition and the TEX86 proxy. Proceedings of the National Academy of Sciences of the United States of America. 113:7762-7767.
Estes, ER, PF Andeer, D Nordlund, SD Wankel and CM Hansel. 2016. Biogenic manganese oxides as reservoirs of organic carbon and proteins in terrestrial and marine environments. Geobiology. DOI:10.1111.gbi.12195.
Buchwald, C, KC Grabb, CM Hansel and SD Wankel. 2016. Constraining the role of iron in environmental nitrogen transformations: Dual stable isotope systematics of abiotic NO2− reduction by Fe(II) and its production of N2O. Geochimica et Cosmochimica Acta 186:1-12. doi:10.1016/j.gca.2016.04.041
Wankel SD, C Buchwald, W Ziebis, CB Wenk, and MF Lehmann. 2015. Nitrogen cycling in the subsurface biosphere: Nitrate isotopes in porewaters underlying the oligotrophic North Atlantic. Biogeosciences 12:13545-13591. doi:10.5194/bg-12-7483-2015
Hansel CM, CJ Lentini, Y Tang, DT Johnston, SD Wankel and PM Jardine. 2015. Dominance of sulfur-fueled iron oxide reduction in low sulfate freshwater environments. The ISME Journal. doi:10.1038/ismej.2015.50
Wankel, SD, AS Bradley, D Eldridge, and DT Johnston. 2014. Determination and application of the equilibrium oxygen isotope effect between water and sulfite. Geochimica et Cosmochimica Acta. 125:694-711. doi:10.1016/j.gca.2013.08.039.
Liao, L, SD Wankel, M Wu, CM Cavanaugh and PR Girguis. 2014. Characterizing the plasticity of nitrogen metabolism by the host and symbionts of the hydrothermal vent chemoautotrophic symbioses Ridgeia piscesae. Molecular Ecology. 23:1544-1557. doi:10.1111/mec.12460.
Orcutt, BN, DE LaRowe, JF Biddle, FS Colwell, BT Glazer, BK Reese, JB Kirkpatrick, LL Lapham, HJ Mills, JB Sylvan, SD Wankel and CG Wheat. 2013. Microbial activity in the deep biosphere: Progress and prospects. Frontiers in Extreme Microbiology. doi:10.3389/fmicb.2013.00189.
Wankel SD, Huang YW, Gupta M, Provencal R, Leen JB, Fahrland A, Vidoudez C, Girguis PR. 2013. Characterizing the distribution of methane sources and cycling in the deep sea via in situ stable isotope analysis. Environmental Science and Technology 47(3):1478-86. doi: 10.1021/es303661w
Lentini C, SD Wankel and CM Hansel. 2012. Linkages between carbon and iron biogeochemistry: Insights from a variety of iron oxide enrichment culturing. Frontiers in Microbiological Chemistry. 3:404 doi:10.3389/fmcib.2012.00404
Wankel, S. D., Adams, M. M., Johnston, D. T., Hansel, C. M., Joye, S. B. and Girguis, P. R. 2012. Anaerobic methane oxidation in metalliferous hydrothermal sediments: influence on carbon flux and decoupling from sulfate reduction. Environmental Microbiology, 14: 2726–2740. doi: 10.1111/j.1462-2920.2012.02825.x
Peterson JM, FU Zielinski, T Pape, R Siefert, C Moraru, R Amann, S Hourdez, PR Girguis, SD Wankel, V Barbe, E Pelletier, D Fink, C Borowski, and N Dubilier. 2011. A novel energy source for chemosynthetic symbioses: Hydrothermal vent mussels powered by hydrogen. Nature. 476:176-180.
Learman DR, SD Wankel, SM Webb, N Martinez, AS Madden, and CM Hansel. 2011. Coupled Biotic-Abiotic Mn(II) Oxidation Pathway Mediates the Formation and Structural Evolution of Biogenic Mn Oxides. Geochimica et Cosmochimica Acta. 75:6048-6063.
SD Wankel, LN Germanovich, MD Lilley, G Genc, CJ DiPerna, AS Bradley, EJ Olson, and PR Girguis. 2011. Influence of subsurface biosphere on geochemical fluxes from diffuse hydrothermal fluids, Nature Geoscience, 4:461-468.
Wankel SD, Mosier AC, Hansel CM, Paytan A, Francis CA. 2011. Spatial variability in nitrification rates and ammonia-oxidizing microbial communities in the agriculturally impacted Elkhorn Slough estuary, California. Applied and Environmental Microbiology 77(1):269-80. doi: 10.1128/AEM.01318-10.
Wankel, SD,SB Joye, VA Samarkin, SR Shah, G Friederich, J Melas-Kyriazi, and PR Girguis. 2010. New constraints on methane fluxes and rates of anaerobic methane oxidation in a Gulf of Mexico brine pool via in situ mass spectrometry. Deep Sea Research II. 57:2022-2029.
S.D. Wankel, Y. Chen, C. Kendall, A.F. Post, A. Paytan. 2010. Sources of aerosol nitrate to the Gulf of Aqaba: evidence from δ15N and δ18O of nitrate and trace metal chemistry. Marine Chemistry, 120:90–99.
Wankel, SD, C Kendall, and A Paytan. 2009. Using nitrate dual isotopic composition (δ15N and δ18O) as a tool for exploring sources and cycling of nitrate in an estuarine system: Elkhorn Slough, CA. Journal of Geophysical Research – Biogeosciences. 114(G01011): 10.1029/2008JG000729.
Elliott, EM, C Kendall, SD Wankel, EW Boyer, DA Burns, DJ Bain, K Harlin, TJ Butler, and R Carlton. 2007. An Isotopic Tracer of Stationary Source NOx Emissions Across the Midwestern and Northeastern United States. Environmental Science and Technology. 41(22): 7661-7667.
Ewing SA, GM Michalski, M Thiemens, RC Quinn, JL Macalady, S Kohl, SD Wankel, C Kendall, CP McKay, and R Amundson. 2007. The rainfall limit of the nitrogen cycle on earth. Global Biogeochemical Cycles. 21(3): 10.1029/2006GB002838.
Kendall C, EM Elliott and SD Wankel. 2007. Tracing anthropogenic sources of nitrogen to ecosystems. In Stable Isotopes in Ecology and Environmental Science. K Lajtha and RH Michener (eds.). Blackwell Science Publications, Oxford.
Derse E, K Knee, SD Wankel, C Kendall and A. Paytan,. 2007. Identifying the sources of nitrogen to Hanalei Bay, Kauai utilizing the nitrogen isotope signature of macroalgae. Environmental Science and Technology. 41(15): 5217-5223.
Wankel, S. D., C. Kendall, J. T. Pennington, F. P. Chavez, and A. Paytan (2007), Nitrification in the euphotic zone as evidenced by nitrate dual isotopic composition: Observations from Monterey Bay, California, Global Biogeochemical Cycles, 21, GB2009, doi:10.1029/2006GB002723.
Ruehl C, AT Fisher, M Los Huertos, SD Wankel, CG Wheat, C Kendall, C Hatch, and C Shennan. 2007. Nitrate dynamics within the Pajaro River, a nutrient rich, losing stream. Journal of the North American Benthological Society. 26(2):191-206.
Leichter, JL, A Paytan, SD Wankel, K Hanson, S Miller, and M Altabet. 2007. Nitrogen and oxygen isotopic signatures of subsurface nitrate: Evidence of deep water nutrient sources to the Florida Keys reef tract. Limnology and Oceanography. 52:1258-1267.
Wankel SD, C Kendall, CA Francis and A Paytan. 2006. Nitrogen sources and cycling in the San Francisco Bay Estuary: A nitrate dual isotopic composition approach. Limnology and Oceanography. 51(4):1654-1664.
Chang, C, SR Silva, C Kendal, GM Michalski, KL Casciotti and SD Wankel. 2005. Preparation and analysis of nitrogen-bearing compounds in water for stable isotope ratio measurement. In Handbook of Stable Isotope Analytical Techniques. PA de Groot (ed). Ch 15. Elsevier.
Ohte N, SD Sebestyen, JB Shanley, DH Doctor, C Kendall, SD Wankel and EW Boyer. 2004. Tracing sources of nitrate in snowmelt using a high-resolution isotopic technique. Geophysical Research Letters. 31, L21506, doi:10.1029/2004GL020908.
Paytan, A, F Martinez-Ruiz, M Eagle, A Ivy, SD Wankel. 2004. Using sulfur isotopes to elucidate the origin of barite associated with high organic matter accumulation events in marine sediments in Amend JP, Edwards KJ and Lyons TW eds. Sulfur Biogeochemistry - Past and Present. Boulder CO, Geological Society of America Special Paper 379, p 151-160.
Rumbold, DG, LE Fink, KA Laine, SL Niemczyk, T Chandrasekhar, SD Wankel, and C Kendall. 2002. Levels of mercury in alligators (Alligator mississippiensis) collected along a transect through the Florida Everglades. The Science of the Total Environment, 297 (103):239-252.