Publications (Lehmann Group)

Peer-reviewed publications and book chapters

2024

Bartosiewicz, M., A. Przytulska, A. Birkholz, H. Niemann, J. Zopfi, M. F. Lehmann (2024). Controls and significance of priming effects in lake sediments .Global Change Biology; https://doi.org/10.1111/gcb.17076.

deCarvalho, C.F.M., M.F. Lehmann, S. G. Pati (2024). Improving the accuracy of δ18O and δ17O values of O2 measured by continuous‑flow isotope-ratio mass spectrometry with a multi-point isotope-ratio calibration. Rapid Communications in Mass Spectrometry. 10.1002/rcm.9652

2023

Bartosiewicz, M., J. Venetz, S. Läubli, O. Sepúlveda-Steiner, D. Bouffard, J. Zopfi and M. F. Lehmann (2023). Detritus-hosted methanogenesis sustains the methane paradox in oxic lake waters. Limnology and Oceanography; Vol. 68, 248-264; https://doi.org/10.1002/lno.12263

Choisnard, N., E. Burtscher, S. Forster, C. Frey, M. Moros, and M. Voss. 2023. The Amazon shelf sediments, a reactor that fuels intense nitrogen cycling at the seabed. Limnol. Ocean. 1–16. doi:10.1002/lno.12416

Einbock, A., Burtscher E., Frey C., Conen F. (2023) Export of ice-nucleating particles from watersheds: results from the Amazon and Tocantins river plumes Royal Society Open Science.(10) 220878.220878 http://doi.org/10.1098/rsos.220878

Ehrenfels., B., K.B.L. Baumann, R. Niederdorfer, A.S. Mbonde, I.A. Kimirei, T. Kuhn, P. Magyar, W. Mohr, D. Odermatt, C.J. Schubert, H. Bürgmann, M.F. Lehmann, B. Wehrli, and C. M. Callbeck (2023). Hydrodynamic regimes modulate nitrogen fixation and the mode of diazotrophy in Lake Tanganyika. Accepted Nature Communications. 

Frey, C., Xi. Sun, L. Szemberski, K. L. Casciotti, E. Garcia-Robledo, A. Jayakumar, C.L. Kelly, M.F. Lehmann, and Bess B. Ward (2023). Kinetics of nitrous oxide production from ammonia oxidation in the Eastern Tropical North Pacific. Limnology and Oceanography; Vol. 68, 424-438;  https://doi.org/10.1002/lno.12283    

Fripiat, F., Sigman, D. M., Martínez‐García, A., Marconi, D., Ai, X. E., Auderset, A., Fawcett, S. E., Moretti, S., Studer, A. S., Haug, G. H. (2023). The impact of incomplete nutrient consumption in the Southern Ocean on global mean ocean nitrate ð15N. Global Biogeochemical Cycles, 37, e2022GB007442. https://doi.org/10.1029/2022GB007442

Huang, K., W. Eschenbach, J. Wei, D. Hausherr, C. Frey, A. Kupferschmid, J. Dyckmans, A. Joss, M. F. Lehmann, J. Mohn (2023).  Simultaneous 15N online analysis in NH4+, NO2–, NO3–, and N2O to Trace N2O Production Pathways in Nitrogen-Polluted Aqueous Environments. In Press  https://doi.org/10.1021/acsestwater.3c00216

Kelly, C. L., C. Manning, C. Frey, J. Kaiser, N. Gluschankoff, and K. L. Casciotti. 2023. Pyisotopomer: A Python package for obtaining intramolecular isotope ratio differences from mass spectrometric analysis of nitrous oxide isotopocules. Rapid Commun. Mass Spectrom. 1–17. doi:10.1002/rcm.9513

Su, G., M.F. Lehmann, J. Tischer, Y. Weber, F. Lepori, J.-C. Walser, H. Niemann, J. Zopfi (2023). Water column dynamics controls nitrite-dependent anaerobic methane oxidation by Candidatus ‘Methylomirabilis’ in stratified lake basins. The ISME Journal; 17, pages 693–702 (2023) https://doi.org/10.1038/s41396-023-01382-4

Sun Xin, C. Frey, and Bess B. Ward. 2023. Nitrite Oxidation Across the Full Oxygen Spectrum in the Ocean. Global Biogeochem. Cycles 1–8. doi:10.1029/2022GB007548

Tang, W., Ward, B. B., Beman, M., Bristow, L., Clark, D., Fawcett, S., Frey, C., Fripiat, F., Herndl, G. J., Mdutyana, M., Paulot, F., Peng, X., Santoro, A. E., Shiozaki, T., Sintes, E., Stock, C., Sun, X., Wan, X. S., Xu, M. N., and Zhang, Y.. 2023. Database of nitrification and nitrifiers in the global ocean. Earth Syst. Sci. Data. doi:10.5194/essd-2023-194

Tracey, J. C., Babbin, A. R., Wallace, E., Sun, X., DuRussel, K. L., Frey, C., Martocello III, D. E., Tamasi, T., Oleynik, S., and Ward, B. B.. 2023. All about nitrite: exploring nitrite sources and sinks in the eastern tropical North Pacific oxygen minimum zone. Biogeosciences 20: 2499–2523. doi:10.5194/bg-20-2499-2023

Voss, M., Choisnard, N., Bartoli, M., Bonaglia, S., Bourbonnais, A., Frey, C., Holtermann, P. L., Jennerjahn, T. C., Jickells, T., and Weston, K.: Coastal Nitrogen Cycling – Biogeochemical Processes and the Impacts of Human Activities and Climate Change, in: Treatise on Estuarine and Coastal Science, 1–26, https://doi.org/10.1016/B978-0-323-90798-9.00042-1, 2023.

Baumann, K. B. L., Thoma, R., Callbeck, C.M., Niederdorfer, R., Schubert C.J., Müller, B., Lever, M.A., Bürgmann, H. 2022. Microbial nitrogen transformation potential in sediments of two contrasting lakes is spatially structured but seasonally stable. mSphere. 7 (1) doi:10.1128/msphere.01013-21

Bopp, C.E., Bolotin, J., Pati, S.G., Hofstetter, T.B. Managing argon interference during measurements of 18O/16O ratios in O2 by continuous-flow isotope ratio mass spectrometry. Analytical and Bioanalytical Chemistry, 2022, 414, 6177–6186.

Bussmann, K., P. E. Hirsch, M. F. Lehmann, P. Burkhardt-Holm (2022). Differential habitat use of a notorious invasive fish, the round goby, in a translocation-relevant system. Ecology and Evolution, 2022;12:e9202; https://doi.org/10.1002/ece3.9202

Chang. Y., K. Cheng, Y. Kuang, Q. Hu, Y. Gao, R.-J. Huang, C. Huang, W. Walters and M.F. Lehmann (2022). Isotopic Variability of Ammonia (δ15N-NH3) Slipped from Heavy-Duty Vehicles under Real-World Conditions. Environmental Science & Technology Letters 2022 9 (9), 726-732; doi: 10.1021/acs.estlett.2c00526

Einzmann T., Schroll M, Kleint JF, Greule M and Keppler F (2022), Application of concentration and 2-dimensional stable isotope measurements of methane to constrain sources and sinks in a seasonally stratified freshwater lake. Front. Environ. Sci. 10:865862. doi:10.3389/fenvs.2022.865862

Gruber,W., P. Magyar, I. Mitrovic, K. Zeyer, M. Vogel, L. von Känel, L. B., R. A. Werner, E. Morgenroth, M. F. Lehmann, D. Braun, A. Joss, J. Mohn (2022). Tracing N2O formation in full-scale wastewater treatment with natural abundance isotopes indicates control by organic substrate and process settings. Water Research X, Vol. 15;  https://doi.org/10.1016/j.wroa.2022.100130

Hausherr, D.,  R. Niederdorfer, H.Bürgmann, M.F. Lehmann, P. Magyar, J. Mohn, E. Morgenroth, A. Joss (2022). Successful year-round mainstream partial nitritation anammox: assessment of effluent quality, performance and N2O emissions.  Water Research X, Vol. 16, https://doi.org/10.1016/j.wroa.2022.100145

Hausherr, D.,  R. Niederdorfer, H.Bürgmann, M.F. Lehmann, P. Magyar, J. Mohn, E. Morgenroth, A. Joss (2022). Successful mainstream nitritation through NOB inactivation. Environmental Science and Technology, Vol. 822; doi.org/10.1016/j.scitotenv.2022.153546

Lehmann, M.F., M. Bartosiewicz, C.M. Callbeck, S. Ebrahimnezhad Darzi, T. Einzmann, C. Fernandes Moreira de Carvalho, C. Frey, T. Kuhn, M. Ley, P. M. Magyar, A. Mazzoli, J. Millet, S. Pati, T. Paulus, A. S. Studer, G. Su, J. Tischer, J. Zopfi (2022).  Mikrobielle Prozesse steuern das Treibhauspotenzial von Seen. Regio Basiliensis 63/1 2022 S. 3-14 (in German) 

Pati, S.G., Bopp, C.E., Kohler, H.-P.E., Hofstetter, T.B. Substrate-specific coupling of O2 activation to hydroxylations of aromatic compounds by Rieske non-heme iron dioxygenases. ACS Catalysis (2022), 12, 6444-6456.

Rushworth, D.D., I. Christl, N. Kumar, K. Hoffman, R. Kretzschmar, M. F. Lehmann, W. D. C. Schenkeveld, S. M. Kraemer (2022). Copper mobilisation from Cu sulfide minerals by methanobactin: Effect of pH, oxygen and natural organic matter. Geobiology; https://doi.org/10.1111/gbi.12505

Sinninghe Damsté, J.S., Weber, Y., Zopfi, J., Lehmann, M.F. and Niemann, H. (2022). Distributions and sources of isoprenoidal GDGTs in Lake Lugano and other central European (peri-) alpine lakes: Lessons for their use as paleotemperature proxies. Quaternary Science Reviews, 277, p.107352.

Su, G., J. Zopfi, H. Niemann, M. F. Lehmann (2022). Multiple groups of methanotrophic bacteria mediate methane oxidation in anoxic lake sediments. Frontiers in Microbiology – Aquatic Microbiology; https://doi.org/10.3389/fmicb.2022.864630 

Tischer, J. , J. Zopfi, C. Frey, P. M. Magyar, A. Brand, K. Oswald, C. Jegge, C.H. Frame, M. R. Miracle, X. Sòria-Perpinyà, E. Vicente and M.F. Lehmann (2022). Isotopic signatures of biotic and abiotic N2O production and consumption in the water column of meromictic, ferruginous Lake La Cruz (Spain). Limnology and Oceanography; https://doi.org/10.1002/lno.12165  

Visser, A.-N., S.D. Wankel, C. Frey, A. Kappler and M.F. Lehmann (2022). Unchanged nitrate and nitrite isotope fractionation during heterotrophic and Fe(II)-mixotrophic denitrification suggest a non-enzymatic link between denitrification and Fe(II) oxidation.  Front. Microbiol.13:927475. doi: 10.3389/fmicb.2022.927475

Bartosiewicz, M., Maranger, R., Przytulska, A., & Laurion, I. (2021). Effects of phytoplankton blooms on fluxes and emissions of greenhouse gases in a eutrophic lake. Water Research116985

Bartosiewicz, M. P. Rzepka, and M.F. Lehmann (2021). Tapping freshwaters for methane and energy. Environmental, Science and Technology; doi.org/10.1021/acs.est.0c06210

Bourbonnais, A., Frey, C., Sun, X., Bristow, L. A., Jayakumar, A., Ostrom, N. E., Casciotti, K. L. and Ward, B. B. (2021). Protocols for assessing transformation rates of nitrous oxide in the water column, Frontiers in Marine Science, 8, 293; doi:10.3389/FMARS.2021.611937

Callbeck, C. M., Canfield, D. E., Kuypers, M. M. M., Yilmaz, P., Lavik, G., Thamdrup, B., Schubert, C. J. and Bristow, L. A. (2021). Sulfur cycling in oceanic oxygen minimum zones. Limnol. Oceanogr. 66: 2360–2392. doi:10.1002/lno.11759

Callbeck, C.M., Ehrenfels, B., Baumann, K., Wehrli, B., and Schubert , C.J (2021). Anoxic chlorophyll maximum enhances local organic matter remineralization and nitrogen loss in Lake Tanganyika. Nature Communications 12, Article number: 830; https://doi.org/10.1038/s41467-021-21115-5

Chang, Y.; Zhang, Y., Kawichai, S., Wang, Q., Van Damme, M., Clarisse, L., Prapamontol, T.,  and Lehmann, M.F. (2021). Convergent Evidence for Pervasive but Limited Contribution of Biomass Burning to Atmospheric Ammonia in Peninsular Southeast Asia. Atmospheric Chemistry and Physics. 21, 7187–7198; https://doi.org/10.5194/acp-21-7187-2021

Cojean, A.N.Y., K. Kremer, M. Bartosiewicz, S. Fabbri, M.F. Lehmann, S.B. Wirth (2021). Morphology, formation, and activity of three different pockmark systems in peri-alpine Lake Thun, Switzerland. Frontiers in Water; https://doi.org/10.3389/frwa.2021.666641

Magyar, P.M., D. Hausherr, N. Stöcklin, R.Niederdorfer, J. Wei, J. Mohn, H. Bürgmann, A. Joss, and M.F Lehmann (2021). Nitrogen isotope effects can be used to diagnose N transformations in wastewater anammox system. Scientific Reports; doi.org/10.1038/s41598-021-87184-0

Niederdorfer, R., L. Fragner, L. Yuan, D. Hausherr, J. Wei, P. Magyar, A. Joss, M.F. Lehmann, F. Ju, H. Bürgmann (2021). Distinct growth stages controlled by the interplay of deterministic and stochastic processes in functional anammox biofilms. Water Research, 200, 117225; https://doi.org/10.1016/j.watres.2021.117225

Niederdorfer, R., Hausherr, D., Palomo, A., Wei, J., Magyar, P., Smets, B.F., Joss, A. & Bürgmann, H. (2021). Temperature modulates stress response in mainstream anammox reactors. Commun Biol 4, 23; doi.org/10.1038/s42003-020-01534-8

Sherwood, O.A.,  S. Davin, N. Lehmann, C. Buchwald, E. N. Edinger, T. Kuhn, M.F. Lehmann, M. Kienast (2021). Stable isotope ratios in seawater nitrate reflect the influence of Pacific water along the Northwest Atlantic margin. Biogeosciences, 18, 4491-4510, 2021; https://bg.copernicus.org/articles/18/4491/2021/

Sigman, D. M., Fripiat, F., Studer, A. S., Kemeny, P. C., Martínez-García, A., Hain, M. P., Ai, X., Wang, X., Ren, H., & Haug, G. H. (2021). The Southern Ocean during the ice ages: A review of the Antarctic surface isolation hypothesis, with comparison to the North Pacific. Quaternary Science Reviews, 254, 106732; https://doi.org/10.1016/j.quascirev.2020.106732

Studer, A. S., Mekik, F., Ren, H., Hain, M. P., Oleynik, S., Martínez‐García, A., Haug, G. H., Sigman, D. M. (2021). Ice Age-Holocene similarity of foraminifera-bound nitrogen isotope ratios in the eastern equatorial Pacific. Paleoceanography and Paleoclimatology, 36, e2020PA004063. https://doi.org/10.1029/2020PA004063

Sun, X., Frey, C., Garcia-Robledo, E., Jayakumar A., Ward B. (2021). Microbial niche differentiation explains nitrite oxidation in marine oxygen minimum zones. ISME J; doi.org/10.1038/s41396-020-00852-3

van Grinsven, S., K. Oswald, C. Jegge, B. Wehrli, J. Zopfi, M.F. Lehmann, C.J. Schubert (2021). Methane oxidation in the waters of a humics-rich Finnish lake stimulated by photosynthesis, nitrite, Fe(III) and humics. Biogeosciences. 18, 3087–3101; https://doi.org/10.5194/bg-18-3087-2021

Visser, A.-N., M.F. Lehmann, F.M. D'Affonseca, H. Rügner, P. Grathwohl, N. Blackwell, A. Kappler, K. Osenbrück (2021). Fate of nitrate during groundwater recharge in a fractured karst aquifer in Southwest Germany. Hydrogeology Journal; doi.org/10.1007/s10040-021-02314-2

Wong, W.W., M.F. Lehmann, T. Kuhn, C. Frame, S. C. Poh, I. Cartwright, P. Cook (2021). Nitrogen and oxygen isotopomeric constraints on the sources of nitrous oxide and the role of submarine groundwater discharge in a temperate eutrophic salt-wedge estuary. Limnology and Oceanography, Vol. 66(4), 1068-1082; doi.org/10.1002/lno.11664

Yao H, Panieri G, Lehmann MF, Himmler T and Niemann H. (2021). Biomarker and isotopic composition of seep carbonates record environmental conditions in two Arctic methane seeps. Front. Earth Sci. 8:570742; doi: 10.3389/feart.2020.570742

Ai, X.E., A.S. Studer, D.M. Sigman, A. Martinez-Garcia, F. Fripiat, L.M. Thöle, E. Michel, J. Gottschalk, L. Arnold, S. Moretti, M. Schmitt, S. Oleynik, S.L. Jaccard, G.H. Haug (2020). Southern Ocean upwelling, Earth’s obliquity, and glacial-interglacial atmospheric CO2 change. Science 370, 1348-1352, doi.org/10.1126/science.abd2115

Bagnoud, A., Guye-Humbert, S., Schloter-Hai, B., Schloter, M., & Zopfi, J. (2020). Environmental factors determining distribution and activity of anammox bacteria in minerotrophic fen soils. FEMS Microbiology Ecology. doi.org/10.1093/femsec/fiz191

Bartosiewicz, M., M. Ptak, R. I. Woolway, M.Sojka (2020). On thinning ice: Effects of atmospheric warming, changes in wind speed and rainfall on ice conditions in temperate lakes (Northern Poland), Journal of Hydrology, 2020, 125724. https://doi.org/10.1016/j.jhydrol.2020.125724

Chang, Y.,   Huang, R.-J.,  Ge, X., Huang, X., Zou, Z., Liu, X.,  and M. F. Lehmann (2020). Puzzling haze events in China during the coronavirus (COVID-19) shutdown. Geophysical Research Letters, 47, e2020GL088533. doi.org/10.1029/2020GL088533

Cojean, A.N.Y., M. F. Lehmann, E. K. Robertson, B. Thamdrup, J. Zopfi (2020). Controls of H2S, Fe2+, Mn2+ on microbial NO3--reducing processes in sediments of a eutrophic lake. Frontiers in Microbiology; doi.org/10.3389/fmicb.2020.01158

Ferré, B., P. Jansson, M. Moser, P. Serov, A. Portnov, F. Gründger, C. Graves, C. Berndt, M.F. Lehmann, H. Niemann (2020). Reduced methane seepage from Arctic sediments during cold bottom water conditions. Nature Geoscience; doi.org/10.1038/s41561-019-0515-3.

Frey, C., Bange, H. W., Achterberg, E. P., Jayakumar, A., Löscher, C. R., Arévalo-Martínez, D. L., León-Palmero, E., Sun, M., Sun, X., Xie, R. C., Oleynik, S., and Ward, B. B. (2020). Regulation of nitrous oxide production in low-oxygen waters off the coast of Peru. Biogeosciences, 17, 2263–2287, doi.org/10.5194/bg-17-2263-2020.

Gottschalk, J., Michel, E., Thöle, L.M., Studer, A.S., Hasenfratz, A.P., Schmid, N., Butzin, M., Mazaud, A., Martinez-Garcia, A., Szidat, S., Jaccard S.L. (2020). Glacial heterogeneity in Southern Ocean carbon storage abated by fast South Indian deglacial carbon release. Nature Communications 11, 6192, doi.org/10.1038/s41467-020-20034-1

Hu H., Wang B., Bravo A.G., Björn E., Skyllberg U., Amouroux D., Tessierg T., Zopfi J., Feng X., Bishop K., Nilsson M.B., Bertilsson S. (2020). Shifts in mercury methylation across a peatland chronosequence: From sulfate reduction to methanogenesis and syntrophy. Journal of Hazardous Materials, Vol. 387, 121967: doi.org/10.1016/j.jhazmat.2019.121967

Lama, S., T. Kuhn, M.F. Lehmann, C. Müller, O. Gonzales, N. Eisenhauer, M. Lange, S. Scheu, Y. Oelmann and W. Wilcke (2020). The biodiversity-N cycle relationship: A 15N tracer experiment with soil from plant mixtures of varying diversity to model N pool sizes and transformation rates. Biology and fertility of Soils, 56, 1047-1061; doi:10.1007/s00374-020-01480-x

Lehmann, M.F., Carstens, D., A. Deek, M. McCarthy, C. J. Schubert and J. Zopfi (2020). Amino acid and amino sugar compositional changes during in vitro degradation of algal organic matter indicate rapid bacterial re-synthesis. Geochimica et Cosmochimica Acta, Vol. 283, 67-84doi.org/10.1016/j.gca.2020.05.025

Le Moigne, A., Bartosiewicz, M., Schaepman‐Strub, G., Abiven, S. and Pernthaler, J. (2020). The biogeochemical variability of Arctic thermokarst ponds is reflected by stochastic and niche‐driven microbial community assembly processes. Environ Microbiol, 22: 4847-4862. doi.org/10.1111/1462-2920.15260

Maciej Bartosiewicz, Mariusz Ptak, R. Iestyn Woolway, Mariusz Sojka (2020). On thinning ice: Effects of atmospheric warming, changes in wind speed and rainfall on ice conditions in temperate lakes (Northern Poland), Journal of Hydrology, 125724, doi.org/10.1016/j.jhydrol.2020.125724.

Pati, S.G., Arnold, W.A. (2020). Comprehensive screening of quaternary ammonium surfactants and ionic liquids in wastewater effluents and lake sediments. Environmental Science: Processes & Impacts, 430-441.

Su, G., J. Zopfi, H. Yao, L. Steinle, H. Niemann, M. F. Lehmann (2020). Manganese/iron-supported sulfate-dependent anaerobic oxidation of methane by archaea in lake sediments.  Limnology and Oceanography; 65, 2020, 863–875, doi.org/10.1002/lno.11354

Visser, A.-N., S.D. Wankel, P. A. Niklaus, J.M. Byrne, A.A. Kappler, M.F. Lehmann (2020). Impact of reactive surfaces on the abiotic reaction between nitrite and ferrous iron and associated nitrogen and oxygen isotope dynamics. Biogeosciences, 17, 4355–4374, 2020; doi.org/10.5194/bg-17-4355-2020

Wilson, S. T., Al-Haj, A. N., Bourbonnais, A., Frey, C., Fulweiler, R. W., Kessler, J. D., Marchant, H. K., Milucka, J., Ray, N. E., Suntharalingham, P., Thornton, B. F., Upstill-Goddard, R. C., Weber, T. S., Arévalo-Martínez, D. L., Bange, H. W., Benway, H. M., Bianchi, D., Borges, A. V., Chang, B. X., Crill, P. M., del Valle, D. A., Farías, L., Joye, S. B., Kock, A., Labidi, J., Manning, C. C., Pohlman, J. W., Rehder, G., Sparrow, K. J., Tortell, P. D., Treude, T., Valentine, D. L., Ward, B. B., Yang, S., Yurganov, L. N. (2020). Ideas and perspectives: A strategic assessment of methane and nitrous oxide measurements in the marine environment. Biogeosciences, 17, 5809-5828, doi.org/10.5194/bg-17-5809-2020

Wirth S. B., Bouffard D., Zopfi J. (2020). Lacustrine groundwater discharge through giant pockmarks (Lake Neuchatel, Switzerland). Frontiers in Water 2:13. doi: 10.3389/frwa.2020.00013

Yu, L., E. Harris, D. Lewicka-Szczebak, M. Barthel, M.R.A. Blomberg, S.J. Harris, M.S. Johnson, M.F. Lehmann, J. Liisberg, C. Müller, N. Ostrom, J. Six, S. Toyoda, N. Yoshida, J. Mohn (2020). What can we learn from N2O isotope data? Analytics, processes and modelling. Rapid Communication in Mass Spectrometry, doi.org/10.1002/rcm.8858

Åström, E.K.L, M.L. Carroll, A. Sen, H. Niemann, W.G. Ambrose Jr., M.F. Lehmann, J.L. Carroll (2019). Chemosynthesis influences food web and community structure in high-Arctic benthos. Marine Ecology Progress Series, Vol. 29: 19–42; doi.org/10.3354/meps13101

Bartosiewicz, M., A. Przytulska, J.-F. Lapierre, I. Laurion, M. F. Lehmann and R.  Maranger (2019). Hot tops, cold bottoms: Synergistic climate warming and shielding effects increase carbon burial in lakes. Limnology and Oceanography Letters;doi: 10.1002/lol2.10117

Bartosiewicz, M., A. Przytulska, B.N. Deshpande, A. Cortes, S. MacIntyre, M. F. Lehmann and I. Laurion (2019). Effects of climate change and episodic heat events on cyanobacteria in a eutrophic polymictic lake. Science of the Total Environment, Vol. 693, doi.org/10.1016/j.scitotenv.2019.07.220

Chang, Y.H., Y. L. Zhang, J. R. Li, C. G. Tian, L. L. Song, X. Y. Zhai, W. Q. Zhang, T. Huang, Y. C. Lin, C. Zhu, Y. T. Fang, M. F. Lehmann, and J. M. Chen (2019). Isotopic constraints on the atmospheric sources and formation of nitrogenous species in clouds influenced by biomass burning. Atmospheric Chemistry and Physics, 19, 12221–12234, doi.org/10.5194/acp-19-12221-2019

Cojean, A.N.Y., J. Zopfi, A. Gerster, C. Frey, F. Lepori, M.F. Lehmann (2019). Direct O2 control on the partitioning between denitrification and dissimilatory nitrate reduction to ammonium in lake sediments. Biogeosciences, 16, 4705-4718, doi.org/10.5194/bg-16-4705-2019

Fripiat, F., A. Martinez-Garcia, S.E. Fawcett, P.C. Kemeny, A.S. Studer, S.M. Smart, F. Rubach, S. Oleynik, D.M. Sigman, G.H. Haug (2019). The isotope effect of nitrate assimilation in the Antarctic Zone: Improved estimates and paleoceanographic implications. Geochimica et Cosmochimica Acta 247, 261-279, https://doi.org/10.1016/j.gca.2018.12.003

Kallies R., Kiesel B., Schmidt M., Ghanem N., Zopfi J., Hackermüller J., Harms H., Wick L.Y., Chatzinotas A. (2019). Complete genome sequence of Pseudoalteromonas virus vB_PspP-H6/1 that infects Pseudoalteromonas sp. strain H6. Marine Genomics, Vol. 47, doi: 10.1016/j.margen.2019.03.002.

Liu, Jiang-Si; Algeo, Thomas J; Jaminski, Jacek; Kuhn, Thomas; Joachimski, Michael M (2019). Evaluation of high-frequency paleoenvironmental variation using an optimized cyclostratigraphic framework: Example for C-S-Fe analysis of Devonian-Mississippian black shales (Central Appalachian Basin, U.S.A.) Chemical Geology Vol 525doi.org/10.1016/j.chemgeo.2019.07.019

Milella, Marco; Gerling, Claudia; Doppler, Thomas; Kuhn, Thomas; Cooper, Matthew; Mariotti, Valentina; Belcastro, Maria Giovanna; Ponce de León, Marcia S; Zollikofer, Christoph PE (2019). Different in death: Different in life? Diet and mobility correlates of irregular burials in a Roman necropolis from Bologna (Northern Italy, 1st–4th century CE) Journal of Archaeological Science: Reports Vol. 27doi.org/10.1016/j.jasrep.2019.101926

Scholz, F., S. Beil, S. Flögel, M.F. Lehmann, A. Holbourn, K. Wallmann, W. Kuhnt (2019). Oxygen minimum zone-type biogeochemical cycling in the Cenomanian-Turonian Proto-North Atlantic across Oceanic Anoxic Event 2. Earth and Planetary Science Letters, Vol. 517, 50-60.

Su, G., H. Niemann, L. Steinle, J. Zopfi, M. F. Lehmann (2019). Evaluating radioisotope-based approaches to measure anaerobic methane oxidation rates in lacustrine sediments. Limnology and Oceanogtaphy Methods, doi: 10.1002/lom3.10323.

Yao, H., W. Hong, G. Panieri, S. Sauer, M. E. Torres, F. Gründger, M.F. Lehmann and H.Niemann (2019). Fracture-controlled fluid transport supports microbial methane-oxidizing communities at the Vestnesa Ridge. Biogeosciences, Vol. 16, 2221-2232, doi.org/10.5194/bg-16-2221-2019

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Bravo, A. G., Zopfi, J., Buck, M., Xu, J., Bertilsson, S., Schaefer, J. K., Poté, J. & Cosio, C. (2018). Geobacteraceae are important members of mercury-methylating microbial communities of sediments impacted by waste water releases. The ISME journal12(3), 802. doi.org/10.1038/s41396-017-0007-7

Chang, Y.,  Y. Zhang, C. Zhang; X. Ma; F. Cao; X. Liu; W. Zhang, T. Kuhn, M. F. Lehmann (2018). Nitrogen isotope fractionation during gas-particle conversion of NOx to NO3- in the atmosphere - implications for isotope-based NOx source apportionment. Atmospheric Chemistry and Physics, Vol. 18, 11647-11661, doi.org/10.5194/acp-18-11647-2018

Erostate, M., F. Huneau, E. Garel, M. F. Lehmann, T. Kuhn, L. Aquilina , V. Vergnaud-Ayraud, T. Labasque, S. Santoni, S. Robert, D. Provitolo, V. Pasqualini (2018). Delayed nitrate dispersion within a coastal aquifer provides constraints on land-use evolution and nitrate contamination in the past. Science of the Total Environment vol. 644 p. 928-940 doi.org/10.1016/j.scitotenv.2018.06.375

Ji, Q., Frey, C., Sun, X., Jackson, M., Lee, Y.-S., Jayakumar, A., Cornwell, J. C., and Ward, B. B. (2018). Nitrogen and oxygen availabilities control water column nitrous oxide production during seasonal anoxia in the Chesapeake Bay,  Biogeosciences15/20: 6127-6138

Kemeny, P.C., E.R. Kast, M.P. Hain, S.E. Fawcett, F. Fripiat, A.S. Studer, A. Martinez-Garcia, G.H. Haug, D.M. Sigman (2018). A seasonal model of nitrogen isotopes in the ice age Antarctic Zone: support for weakening of the Southern Ocean upper overturning cell. Paleoceanography and Paleoclimatology 33, doi:10.1029/2018PA003478

Ley, M. M.F. Lehmann, P. Niklaus, and J. Luster (2018). Alteration of nitrous oxide emissions from floodplain soils by aggregate size, litter accumulation and plant soil interactions. Biogeosciences, Vol. 15, 7043-7057 DOI 10.5194/bg-15-7043-2018

Lepori, Fabio & Bartosiewicz, Maciej & Simona, Marco & Veronesi, Mauro. (2018). Effects of winter weather and mixing regime on the restoration of a deep perialpine lake (Lake Lugano, Switzerland and Italy). Hydrobiologia. 10.1007/s10750-018-3575-2.

Steinle, L., K.Knittel, N. Felber, C. Casalino, G. de Lange, C. Tessarolo, A. Stadniskaia, J. S. Sinninghe Damsté, J. Zopfi, M. F. Lehmann, T. Treude, H. Niemann (2018). Life on the edge: Active microbial communities within the Kryos MgCl2-brine basin at very low water activity. The ISME Journal. DOI: doi.org/10.1038/s41396-018-0107-z

Symanczik, S., M. F. Lehmann, A. Wiemken, T. Boller, P.-E. Courty (2018). Effects of two contrasted arbuscular mycorrhizal fungal isolates on nutrient uptake by Sorghum bicolor under drought. Journal Mycorrhiza, (), 1-7 DOI 10.1007/s00572-018-0853-9

Studer, A.S., D.M. Sigman, A. Martinez-Garcia, L.M. Thöle, E. Michel, S.L. Jaccard, J.A. Lippold, A. Mazaud, X.T. Wang, L.F. Robinson, J.F. Adkins, G.H. Haug (2018). Increased nutrient supply to the Southern Ocean during the Holocene and its implications for the pre-industrial atmospheric CO2 rise. Nature Geoscience 11(10), 756-760, doi.org/10.1038/s41561-018-0191-8. For a full-text access to a view-only version see https://rdcu.be/3Ky2

Volk, M., S. Bassin, M.F. Lehmann, M. G. Johnson, C. P. Andersen (2018). 13C isotopic signature and C concentration of soil density fractions illustrate reduced C allocation to subalpine grassland soil under high atmospheric N deposition. Soil Biology and Biochemistry, Vol. 125, p. 178-184, doi.org/10.1016/j.soilbio.2018.07.014

Wannicke, N, Frey, C, Law, CS, Voss, M (2018). The response of the marine nitrogen cycle to ocean acidification. Global Change Biology 1-13, doi: 10.1111/gcb.14424

Weber,Y., J. S. Sinninghe Damsté, J. Zopfi, C. De Jonge, A. Gili, C. J. Schubert, F. Lepori, M. F. Lehmann, Helge Niemann (2018). Redox-dependent niche differentiation provides evidence for multiple bacterial sources of glycerol tetraether lipids in lakes. Proceedings of the National Academy of Science, doi.org/10.1073/pnas.1805186115

Zimmermann, R. E., Ribolzi, O., Pierret, A., Rattanavong, S., Robinson, M. T., Newton, P. N., Davong, V., Auda, Y., Zopfi, J. & Dance, D. A. (2018). Rivers as carriers and potential sentinels for Burkholderia pseudomallei in Laos. Scientific reports8(1), 8674. doi.org/10.1038/s41598-018-26684-y

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Brankovits,D., J. W. Pohlman, H. Niemann, M. B. Leigh, M. C. Leewis, K. W. Becker, T. M. Iliffe, F., Alvarez, M.F. Lehmann, B. Phillips (2017). Methane- and dissolved organic carbon-fueled microbial loop supports a tropical subterranean estuary ecosystem. Nature Communications. DOI: 10.1038/s41467-017-01776-x

Camacho, A., Walter, X. A., Picazo, A., Zopfi, J. (2017). Photoferrotrophy: remains of an ancient photosynthesis in modern environments. Frontiers in Microbiology, 8, 323. doi: 10.3389/fmicb.2017.00323.

Doppler,  T.,  C. Gerling, V. Heyd, C. Knipper, T. Kuhn, M.F. Lehmann, A.W.G. Pike, J. Schibler (2017). Landscape opening and herding strategies: Carbon isotope analyses of herbivore bone collagen from the Neolithic and Bronze Age lakeshore site of Zurich-Mozartstrasse, Switzerland. Quaternary International, 436, 18-28, 4doi.org/10.1016/j.quaint.2015.09.007

Frame, C.H., E. Lau, E.J. Nolan IV, T.J. Goepfert, M.F. Lehmann (2017). Acidification enhances biologically catalyzed hybrid N2O production by aquatic ammonia-oxidizing microorganisms. Frontiers in Microbiology – Microbiological Chemistry and Geomicrobiology , doi: 10.3389/fmicb.2016.02104

Gerling, C. , T. Doppler, V. Heyd, C. Knipper, T. Kuhn, M.F. Lehmann, A.W.G. Pike and J. Schibler (2017). High-resolution isotopic evidence of specialised cattle herding in the European Neolithic. PlosOne. doi.org/10.1371/journal.pone.0180164

Gerling, C. , T. Doppler, V. Heyd, C. Knipper, T. Kuhn, M.F. Lehmann, A.W.G. Pike and J. Schibler (2017). The Beginnings of Alpine Transhumance? Isotopic Insights into Neolithic Cattle Herding. Chimia 71(12)

Grimmeisen, F.; M. F. Lehmann; T. Liesch; N. Goeppert; J. Klinger; J. Zopfi; N. Goldscheider (2017). Isotopic constraints on water source mixing, network leakage and contamination in an urban groundwater system. Science of the total Environment, doi.org/10.1016/j.scitotenv.2017.01.054

Kallies, R., Kiesel, B., Schmidt, M., Kacza, J., Ghanem, N., Narr, A., Zopfi, J., Wick, L. Y., Hackermüller, J., Harms, H., Chatzinotas, A. (2017). Complete genome sequence of Pseudoalteromonas phage vB_PspS-H40/1 (formerly H40/1) that infects Pseudoalteromonas sp. strain H40 and is used as biological tracer in hydrological transport studies. Standards in Genomic Sciences, 12(1), 20. DOI: 10.1186/s40793-017-0235-5.

Kallies, R., Kiesel, B., Zopfi, J., Wick, L. Y., & Chatzinotas, A. (2017). Complete genome sequence of Alteromonas Virus vB_AspP-H4/4. Genome Announcements, 5(43), e00914-17.

Koegel, S., D. Mieulet, S. Baday, O. Chatagnier, M. F. Lehmann, A. Wiemken, T. Boller, D. Wipf, S. Bernèche, E. Guiderdoni, P.-E. Courty (2017). Phylogenetic, structural and functional characterization of AMT3;1, an ammonium transporter induced by mycorrhization, among model grasses. Mycorrhiza. doi: 10.1007/s00572-017-0786-8

Krause, S., Niemann, H. and Treude, T. (2017). Methane seeps in a changing climate. Life at Vents and Seeps (ed. Kallmeyer, J),1–32, De Gruyter, Berlin, Boston.

Przytulska A, Bartosiewicz M, Vincent WF. (2017). Increased risk of cyanobacterial blooms in northern high-latitude lakes through climate warming and phosphorus enrichment. Freshwater Biology 62:1986–1996. https://doi.org/10.1111/fwb.13043

Steinle, L., J. Maltby, T. Treude, A. Kock, H. W. Bange, N. Engbersen, J. Zopfi, M. F. Lehmann, and Helge Niemann (2017). Effects of low oxygen concentrations on aerobic methane oxidation in seasonally hypoxic coastal waters. Biogeosciences, doi:10.5194/bg-14-1631-2017

Stopelli, E., Conen, F., Guilbaud, C., Zopfi, J., Alewell, C., & Morris, C. E. (2017). Ice nucleators, bacterial cells and Pseudomonas syringae in precipitation at Jungfraujoch. Biogeosciences, 14(5), 1189-1196.

Vandieken, V., H. Niemann, B. Engelen, H. Cypionka (2017). Marinisporobacter balticus gen. nov., sp. nov., Desulfosporosinus nitroreducens sp. nov. and Desulfosporosinus fructosivorans sp. nov., new spore-forming bacteria isolated from subsurface sediments of the Baltic Sea. International Journal of Systematic and Evolutionary Microbiology, 67, 1887-1893

Vystavna, Y., Diadin, D., Yakovlev, V., Hejzlar, J., Vadillo, I., Huneau, F., Lehmann, M.F. (2017). Constraining nitrate contamination in a shallow urban aquifer: integrating stable nitrate isotope measurements and land use analysis. Environmental Earth Science, 76 (13), 463; doi10.1007/s12665-017-6796-1

Weber, Y., J.S. Sinninghe Damsté, M.F. Lehmann, H. Niemann (2017). Incomplete recovery of intact polar glycerol dialkyl glycerol tetraethers from lacustrine suspended biomass. L&O Methods. doi: 10.1002/lom3.10198

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Bartosiewicz M., Laurion, I., Clayer, F. and R. Maranger (2016). Heat wave effects on oxygen, nutrients and phytoplankton alter global warming potential of gases emitted from a small shallow lake. Environmental Science and Technology, 10.1021/acs.est.5b06312

Doppler,  T.,  C. Gerling, V. Heyd, C. Knipper, T. Kuhn, M.F. Lehmann, A.W.G. Pike, J. Schibler (2016). Landscape opening and herding strategies: Carbon isotope analyses of herbivore bone collagen from the Neolithic and Bronze Age lakeshore site of Zurich-Mozartstrasse, Switzerland. Quaternary International.

Glaz P., Bartosiewicz M., Laurion I., Maranger R., Reichwaldt E., and A. Ghadouani (2016). Greenhouse gas emissions from waste stabilization ponds in Western Australia and Quebec (Canada). Water Research, doi:10.1016/j.watres.2016.05.060.

Hüppi, R., A. Neftel, M. F. Lehmann, M. Krauss, J. Six, J. Leifeld (2016). N-use efficiencies and N2O emissions in two contrasting, biochar amended soils under winter wheat - cover crop - sorghum rotation. Env. Res. Letters., 11, 84013-84013, doi: 10.1088/1748-9326/11/8/084013

Jaquet S, Junier P, Zopfi J., Brandl H., Curtis T. Microbiologie (2016). In: Lemin U. (ed.) Les Abysses du Léman ;  Projet elemo. Presses Polytechniques et Universitaires romandes. Chapter IV, 145-168.

McCarthy, M.J., W. S. Gardner, M. F. Lehmann and D. F. Bird (2016). Benthic nitrogen regeneration, fixation, and denitrification in a temperate, eutrophic lake: Effects on the nitrogen budget and cyanobacteria blooms. Limnology and Oceanography 61, 1406–1423 ; doi: 10.1002/lno.10306

Mohn, J., W. Gutjahr, S. Toyoda, E. Harris, E. Ibraim, H. Geilmann, P. Schleppi, T. Kuhn, M.F. Lehmann, C. Decock, R.A. Werner, N. Yoshida, and W.A. Brand (2016). Reassessment of the NH4NO3 thermal decomposition technique for calibration of the N2O isotopic composition. Rapid Commun. Mass Spectrom., doi: 10.1002/rcm.7736.

Oswald K., C. Jegge, J. Tischer, J. Berg, Andreas Brand, M.R. Miracle, X. Soria, E. Vicente, M. F. Lehmann, J. Zopfi, C. J. Schubert (2016). Methanotrophy under versatile conditions in the water column of the ferruginous meromictic Lake La Cruz (Spain). Frontiers in Microbiology – Aquatic Microbiology, doi: 10.3389/fmicb.2016.01762

Przytulska, A., Comte, J., Crevecoeur, S., Lovejoy, C., Laurion, I., & Vincent, W. F. (2016). Phototrophic pigment diversity and picophytoplankton in permafrost thaw lakes. Biogeosciences, 13(1), 13.

James, R. H., P. Bousquet, I. Bussmann, M. Haeckel, R. Kipfer, I. Leifer, H. Niemann, I. Ostrovsky, J. Piskozub, G. Rehder, T. Treude, L. Vielstädte, J. Greinert (2016). Effects of climate change on methane emissions from seafloor sediments in the Arctic Ocean: A review. Limnology and Oceanography, doi: 10.1002/lno.10307.

Steinle, L., M. Schmidt, L. Briant, M. Haeckel, P. Linke, S. Sommer, J. Zopfi, M. F. Lehmann, T. Treude, and H. Niemannn (2016). Linked sediment and water-column methanotrophy at a man-made gas blowout in the North Sea: Implications for methane budgeting in seasonally stratified shallow seas. Limnology and Oceanography, DOI: 10.1002/lno.10388

Wenk, C.B., C. H. Frame, K. Koba, K. L. Casciotti, J. Blees, M. Veronesi, H. Niemann, C. J. Schubert, N. Yoshida, S. Toyoda, A. Makabe, J. Zopfi, M.F. Lehmann (2016). Differential N2O dynamics in two oxygen-deficient lake basins revealed by stable isotope and isotopomer distributions. Limnology and Oceanography, 61, 1735–1749; DOI:10.1002/lno.1032

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Bergottini, V. M., M. B. Otegui, D. A. Sosa, P. D. Zapata, M. Mulot, M. Rebord, J. Zopfi, F. Wiss, B. Benrey, and P. Junier (2015). Bio-inoculation of yerba mate seedlings (Ilex paraguariensis St. Hill.) with native plant growth-promoting rhizobacteria: a sustainable alternative to improve crop yield. Biology and Fertility of Soils. DOI 10.1007/s00374-015-1012-5

Blees, J., H. Niemann, M. Erne, J. Zopfi, C.J. Schubert, and M.F. Lehmann (2015). Surface water methane super-saturation and emission in Lake Lugano, southern Switzerland. Aquatic Sciences, DOI 10.1007/s00027-015-0401-z

Bravo, A. G., Bouchet, S., Guédron, S., Amouroux, D., Dominik, J. and Zopfi, J. (2015). High methylmercury production under ferruginous conditions in sediments impacted by sewage treatment plant discharges. Water Research http://dx.doi.org/10.1016/j.watres.2015.04.039

Courty, P.-E., P. Doubkova, S. Calabrese, H. Niemann, M. F. Lehmann, M. Vosátka, M.-A. Selosse (2015). Species-dependent partitioning of C and N stable isotopes between arbuscular mycorrhizal fungi and their C3 and C4 hosts. Soil Biology and Biochemistry, Volume 82, 52-61; doi:10.1016/j.soilbio.2014.12.005

Graves, C. A., Lea Steinle, Gregor Rehder, Helge Niemann, Douglas P. Connelly, David Lowry, Rebecca E. Fisher, Andrew W. Stott, Heiko Sahling, Rachael H. James (2015). Fluxes and fate of dissolved methane released at the seafloor at the landward limit of the gas hydrate stability zone offshore western Svalbard. Journal of Geophysical Research: Oceans 09/2015;  DOI:10.1002/2015JC011084

Van Landeghem, K.J.J., Helge Niemann, Lea I. Steinle, Shane S. O’Reilly, Dei G. Huws, Peter F. Croker (2015). Geological settings and seafloor morphodynamic evolution linked to methane seepage. Geo-Marine Letters 04/2015; 35(4). DOI:10.1007/s00367-015-0407-5

Lehmann M.F., Simona M., Wyss S., Blees J., Frame C.H., Niemann H., Veronesi M. and Zopfi J. (2015). Powering up the “biogeochemical engine”: The impact of exceptional ventilation of a deep meromictic lake on the lacustrine redox, nutrient, and methane balances. Front. Earth Sci. 3:45. doi: 10.3389/feart.2015.00045

Naeher, S., A. Huguet, C.L. Roose-Amsaleg, A.M. Laverman, C. Fosse, M.F. Lehmann, S. Derenne, J. Zopfi (2015). Molecular and geochemical constraints on anaerobic ammonium oxidation (anammox) in a riparian zone of the Seine Estuary (France). Biogeochemistry; Volume 123 (1-2), 237-250; doi 10.1007/s10533-014-0066-z

Niemann, H., L.I. Steinle, J. H. Blees, I. Bussmann, T. Treude S. Krause, M. Elvert, M.F. Lehmann (2015). Toxic effects of lab grade butyl rubber stoppers on aerobic methane oxidation. Limnol. Oceanogr.: Methods 13, 2015, 40–52 VC 2015 Association for the Sciences of Limnology and Oceanography doi: 10.1002/lom3.10005

Rohde, M.M., J. Granger, D.M. Sigman, M.F. Lehmann (2015). Coupled nitrate N and O stable isotope fractionation by a natural marine plankton consortium. Frontiers in Marine Science 2:28. doi: 10.3389/fmars.2015.00028.

Saarenheimo, J, A. Rissanen, L. Arvol, H. Nykänen, M.F. Lehmann, and M. Tiirola (2015). Genetic and environmental controls on nitrous oxide accumulation in lakes. PLoS ONE, Vol.10(3), e0121201; doi 10.1371/journal.pone.0121201

Sanderman, J., Krull, E., Kuhn, T., Hancock, G., McGowan, J., Maddern, T., Fallon, S., Steven, A. (2015). Deciphering sedimentary organic matter sources: Insights from radiocarbon measurements and NMR spectroscopy. Limnology and Oceanography 60 (3), pp. 739-753.

Steinle, L., C. A. Graves, T. Treude, B. Ferré, A. Biastoch, I. Bussmann, C. Berndt, S. Krastel, R. H. James, E. Behrens, C. W. Böning, J. Greinert, C.-J. Sapart, M. Scheinert, S. Sommer, M. F. Lehmann, H. Niemann (2015). Water column methanotrophy controlled by a rapid oceanographic switch. Nature Geoscience | doi: 10.1038/ngeo2420

Wankel, S.D., C. Buchwald, W. Ziebis, C. Wenk and M. F. Lehmann (2015). Nitrogen cycling in the subsurface biosphere: Nitrate isotopes in porewaters underlying the oligotrophic North Atlantic. Biogeosciences, 12, 7483-7502; doi:10.5194/bg-12-7483-2015.

Weber, Y., C. De Jonge,  W. I. C. Rijpstra, E.C. Hopmans, A. Stadnitskaia, C.J. Schubert, M.F.  Lehmann, J. S. Sinninghe Damsté, and H.Niemann (2015). Identification and carbon isotope composition of a novel branched GDGT isomer in lake sediments: Evidence for lacustrine brGDGT production. Geochimica et Cosmochimica Acta, Volume 154, 118-129; doi.org/10.1016/j.gca.2015.01.032

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Berndt, C.,T. Feseker, T. Treude, S. Krastel, V. Liebetrau, H. Niemann, V. J. Bertics, I. Dumke, K. Dünnbier, B. Ferré, C. Graves, F. Gross, K. Hissmann, V. Hühnerbach, S. Krause, K. Lieser, J. Schauer, L. Steinle (2014). Temporal Constraints on Hydrate-Controlled Methane Seepage off Svalbard. Science, 343 (6168), 284-287

Blees J., H. Niemann, C. B. Wenk, J. Zopfi, C. J. Schubert, M. Kirf, M. L. Veronesi, C. Hitz, and M. F. Lehmann (2014). Micro-aerobic bacterial methane oxidation in the chemocline and anoxic water column of deep south-Alpine Lake Lugano (Switzerland). Limnology Oceanography, 59(2), 311-324; doi:10.4319/lo.2014.59.2.0311.

Blees J., H. Niemann, C. B. Wenk, J. Zopfi, C. J. Schubert, M. L. Veronesi, and M. F. Lehmann (2014). Bacterial methanotrophs drive the formation of a seasonal anoxic benthic nepheloid layer in an alpine lake. Limnology Oceanography, 59(4):1410-1420.

Bourbonnais, A., S. K. Juniper, D. A. Butterfield, R. Anderson, and M.F. Lehmann (2014). Diversity and abundance of Bacteria and nirS-encoding denitrifiers associated with the Juan de Fuca Ridge hydrothermal system. Annals of Microbiology, Volume 64, Issue 4, Page 1691-1705; doi: 10.1007/s13213-014-0813-3.

Bravo A. G., Cosio C., Amouroux D., Zopfi J., Chevalley P.-A., Spangenberg J. E., Ungureanu V.-G., Dominik J. (2014). Extremely elevated methyl mercury levels in water, sediment and organisms in a Romanian reservoir affected by release of mercury from a chlor-alkali plant. Water Research. http://dx.doi.org/10.1016/j.watres.2013.10.024

Dabundo, R., M. F. Lehmann, L. Treibergs, C. R. Tobias, M. A. Altabet, P. H. Moisander, J. Granger (2014). The contamination of commercial 15N2 gas stocks with 15N-labeled nitrate and ammonium and consequences for 
nitrogen fixation measurements. PLoS ONE 9(10): e110335. doi:10.1371/journal.pone.0110335

D'Alessandro M., Erb M., Ton J., Brandenburg A., Karlen D., Zopfi J., Turlings T.C.J. (2014). Volatiles produced by soil-borne endophytic bacteria increase plant pathogen resistance and affect tritrophic interactions. Plant Cell and Environment. doi: 10.1111/pce.12220

Frame, C. H., E. Deal, C. D. Nevison, and K. L. Casciotti. 2014. N2O production in the eastern South Atlantic: analysis of N2O stable isotopic and concentration data. Global Biogeochemical Cycles, Volume 28, Issue 11, Pages: 1262–1278, doi: 10.1002/2013GB004790.

Naeher, Sebastian; Niemann, Helge; Peterse, Francien; Smittenberg, Rienk H; Zigah, Prosper K; Schubert, Carsten J. (2014). Tracing the methane cycle with lipid biomarkers in Lake Rotsee (Switzerland) Organic Geochemistry, 66, 174-181.

Naeher, Sebastian; Peterse, Francien; Smittenberg, Rienk H; Niemann, Helge; Zigah, Prosper K; Schubert, Carsten J. (2014). Sources of glycerol dialkyl glycerol tetraethers (GDGTs) in catchment soils, water column and sediments of Lake Rotsee (Switzerland) - Implications for the application of GDGT-based proxies for lakes. Organic Geochemistry, 66, 164-173.

Walter, X. Alexis; Picazo-Mozo, Antonio; Miracle, Maria Rosa; Vicente, Eduardo; Camacho, Antonio, Aragno, Michel; Zopfi, Jakob (2014). Phototrophic Fe(II)-oxidation in the chemocline of a ferruginous meromictic lake. Frontiers in Microbiology, Volume 5,  Article-No. 713; doi:10.3389/fmicb.2014.00713

Wenk, C.B., J. Zopfi, J. Blees, M. Veronesi, H. Niemann, and M. F. Lehmann (2014). Community N and O isotope fractionation by sulfide-dependent denitrification and anammox in a stratified lacustrine water column. Geochimica et Cosmochimica Acta.125, 551-563; doi.org/10.1016/j.gca.2013.10.034

Wenk, C.B., J. Zopfi, J. Blees , W. S. Gardner, M. McCarthy, H. Niemann, M. L. Veronesi, and M. F. Lehmann (2014). Quantitative partitioning between benthic and pelagic nitrate reduction in the Lake Lugano south basin. Limnology Oceanography, 59(4):1421-1433.

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Alkhatib, M., P.A. del Giorgio, Y. Gelinas, and M.F. Lehmann (2013). Benthic fluxes of dissolved organic nitrogen in the Lower St. Lawrence Estuary and implications for selective organic matter degradation.  Biogeosciences, 10, 7609-7622, doi:10.5194/bg-10-7609-2013


Bourbonnais, A., M.F. Lehmann, R. Hamme, C. Manning, and  S.K. Juniper (2013). Nitrate elimination and regeneration as evidenced by dissolved inorganic nitrogen isotopes in Saanich Inlet, a seasonally anoxic fjord. Marine Chemistry, 157, 194-207; doi.org/10.1016/j.marchem.2013.09.006.



Brunner, B.*, Contreras, S.*, M.F. Lehmann*, O. Mantantseva, M. Rollog, T. Kalvelage, G. Glockether, G. Lavik, M.S.M. Jetten, B. Kartal, and M.M.M. Kuypers (2013). Nitrogen isotope effects induced by anammox bacteria. PNAS 2013 : 1310488110v1-201310488. (*contributed equally)


Carstens, D., M. F. Lehmann, T. Hofstetter and C. J. Schubert (2013). Amino acid nitrogen isotopic composition patterns in lacustrine sedimenting matter. Geochimica et Cosmochimica Acta, 121, 328-338; doi: 10.1016/j.gca.2013.07.020


Farrell, M., Kuhn, T.K., Macdonald, L.M., Maddern, Murphy, D.V., Hall, P.A., Singh, B.P., Baumann, K., Krull, E., Baldock, J. (2013). Microbial utilisation of biochar-derived carbon. Science of the Total Environment, vol. 465, pp. 288–297.

Freymond, C., C. Wenk, C.H. Frame and M. F. Lehmann (2013). Year-round N2O production by benthic NOx reduction in a monomictic south-alpine lake. Biogeosciences, 10, 8373-8383 doi:10.5194/bg-10-8373-2013.

Galbraith, E., M. Kienast A.L., M. Altabet, F. Batista, D. Bianchi, S. Calvert, S. Contreras Quintana, X. Crosta, R. De Pol Holz, J. Etourneau, R. Francois, T.-C. Hsu, T. Ivanochko, S. Jaccard, S.-J. Kao, T. Kiefer, S. Kienast, M.F. Lehmann, P. Martinez, M. McCarthy, A. Mix, A.N. Meckler, J. Möbius, T. Pedersen, L. Pichevin, T.M. Quan, R.S. Robinson, E. Ryabenko, A. Schmittner, R. Schneider, A. Schneider-Mor, M. Shigemitsu, D. Sinclair, C. Somes, A. Studer, J.E. Tesdal, R. Thunell, and J.-Y. Yang (2013). The acceleration of oceanic denitrification during deglacial warming. Nature Geoscience, 6, 579-584; doi: 10.1038/NGEO1832.


Henneberger, R., Chiri, E., Blees, J., Niemann, H., Lehmann, M. F. and Schroth, M. H. (2013). Field-scale labelling and activity quantification of methane-oxidizing bacteria in a landfill-cover soil. FEMS Microbiology Ecology, 83, 392–401, DOI: 10.1111/j.1574-6941.2012.01477.x


Koegel S., Boller T., Lehmann M.F., Wiemken A., Courty P.-E. )2013). Rapid nitrogen transfer in the Sorghum bicolor-Glomus mosseae arbuscular mycorrhizal symbiosis. Plant Signal Behav. 2013; 8: e25229; http://dx.doi.org/10.4161/psb.25229.


Maignien, L.,  R. Parkes, B. Cragg, H. Niemann, K. Knittel, S. Coulon, A. Akhmetzhanov, N. Boon (2013). Anaerobic oxidation of methane in hypersaline cold seep sediments. FEMS Microbiology Ecology, 83, 214-231


Mau S., Blees J, Helmke E, Niemann H, Damm E (2013). Vertical distribution of methane oxidation and methanotrophic response to elevated methane concentrations in stratified waters of the arctic fjord Storfjorden (Svalbard, Norway). Biogeosciences 10, 6267–6278, 2013.

McCarthy, M.J., W. S. Gardner, M. F. Lehmann and D. F. Bird, 2013. Implications of water column ammonium uptake and regeneration for the nitrogen budget in temperate, eutrophic Missisquoi Bay, Lake Champlain. Hydrobiologia, 718:173-188; doi:10.1007/s10750-013-1614-6.


Niemann, H., P. Linke, K. Knittel, E. MacPherson, A. Boetius, W. Brückmann, G. Lavik, K. Wallmann, U. Schacht, E. Omoregie, D. Hilton, K. Brown, G. Rehder (2013). Methane-carbon flow into the benthic food web at cold seeps  - a case study from the Costa Rica subduction zone. PlosOne 8, e74894-e74894


Thibodeau, B., J.F. Hélie, and M.F. Lehmann (2013). Variations of the nitrate isotopic composition in the St. Lawrence River caused by seasonal changes in atmospheric nitrogen inputs. Biogeochemistry, 115(1-3), 287-298; doi 10.1007/s10533-013-9834-4.


Walder, F., H. Niemann, M.F. Lehmann, T. Boller, A. Wiemken, P.-E. Courty (2013). Tracking the carbon source of arbuscular mycorrhizal fungi colonizing C3 and C4 plants using carbon isotope ratios (δ13C). Soil Biology and Biochemistry, 58, 341-344, doi.org/10.1016/j.soilbio.2012.12.008

Wenk, C.B., J. Blees, J. Zopfi, M. Veronesi, A. Bourbonnais, C. J. Schubert, H. Niemann, M. F. Lehmann, 2013. Anaerobic ammonium oxidation (Anammox) bacteria and sulfide-dependent denitrifiers co-exist in the water column of a meromictic south-alpine lake, Limnology and Oceanography, 58, 1–12 doi:10.4319/lo.2013.58.1.0001.


Wirth, S.B., A. Gilli, H. Niemann, T.W. Dahl, D. Ravasi, N. Sax, Y. Hamann, R. Peduzzi, S. Peduzzi, M. Tonolla, M.F. Lehmann, F.S. Anselmetti (2013). Combining sedimentological, trace metal (Mn, Mo) and molecular evidence for reconstructing past water-column redox conditions: The example of meromictic Lake Cadagno (Swiss Alps). Geochimica et Cosmochimica Acta, 120, 220-238; doi: 10.1016/j.gca.2013.06.017.


Wunderlin, P., M. F. Lehmann, H. Siegrist, T. Bela, J. Adriano, L. Emmenegger, and J. Mohn (2013). Isotope signatures of N2O in a mixed microbial population system: Constraints on N2O producing pathways in wastewater treatment. Environmental Science and Technology, 47, 1339-1348, doi: 10.1021/es303174x.


Zurbrügg, R., S. Suter, M. F. Lehmann, N. Blank, B. Wehrli, and D. B. Senn (2013). Organic carbon and nitrogen export from a tropical dam-impacted floodplain system. Biogeosciences, 10, 23-38, doi:10.5194/bg-10-23-2013.

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2012

Alkhatib, M., M.F. Lehmann, and P.A. del Giorgio (2012). The nitrogen isotope effect of benthic remineralization-nitrification-denitrification coupling in an estuarine environment. Biogeoscience, 9, 1633-1646; doi: 10.5194/bg-9-1633-1012


Alkhatib, M., C.J. Schubert, P.A. del Giorgio, Y. Gélinas, and M.F. Lehmann (2012). Organic matter reactivity indicators in sediments of the St. Lawrence Estuary. Estuarine, Coastal, and Shelf Science, Vol. 102-103, 36-47; doi:10.1016/j.ecss.2012.03.002.


Bourbonnais, A., S. K. Juniper, D. A. Butterfield, A. Devol, M.M.M. Kuypers, G. Lavik, S.J. Hallam, B.X. Chang, S. Murdock, M.F. Lehmann (2012). Activity and abundance of denitrifying bacteria in the subsurface biosphere of diffuse hydrothermal vents of the Juan de Fuca Ridge. Biogeosciences, doi:10.5194/bg-9-4661-2012


Bourbonnais, A., M.F. Lehmann, D.A. Butterfield, S.K. Juniper (2012). Subseafloor nitrogen transformation in diffuse hydrothermal vent fluids of the Juan de Fuca Ridge evidenced by the isotopic composition of nitrate and ammonium. Geochemistry, Geophysics, Geosystems, 13, Q0201, doi:10.1029/2011GC003863.

Humbert, S., Zopfi, J.,Tarnawski, S.-E. (2012). Abundance of anammox bacteria in different wetland soils. Environmental Microbiology Reports, Volume: 4  Issue: 5  Pages: 484-490  DOI: 10.1111/j.1758-2229.2012.00347.x

Martin, G., Guggiari, M., Bravo, D., Zopfi J., Cailleau, G., Aragno, M., Job, D., Verrecchia E., Junier P. (2012). Fungi, bacteria and soil pH: the oxalate-carbonate pathway as a model for metabolic interaction. EnvironmentalMicrobiology, Volume: 14  Issue: 11  Pages: 2960-2970  DOI: 10.1111/j.1462-2920.2012.02862.x

Niemann, H., S. B. Wirth, A. Stadnitskaia, A. Gilli, F. S. Anselmetti, J. S. Sinninghe Damsté, S. Schouten, E. C. Hoppmans, M. F. Lehmann (2012). Bacterial GDGTs in Holocene sediments and catchment soils of a high-alpine lake: application of the MBT/CBT-paleothermometer. Climate of the Past, 8, 889–906; doi:10.5194/cp-8-889-2012.

Peter, S., Rechsteiner, R., Lehmann, M. F., Brankatschk, R., Vogt, T., Diem, S., Wehrli, B., Tockner, K., and Durisch-Kaiser, E. (2012). Nitrate removal in a restored riparian groundwater system: functioning and importance of individual riparian zones. Biogeosciences, 9, 4295-4307, doi:10.5194/bg-9-4295-2012.

Robinson, R.S, M. Kienast, A. Albuquerque, M. Altabet, S. Contreras Quintana, R. De Pol-Holz, N. Dubois, R. Francois, E. Galbraith, T. Ivanochko, S. Jaccard  S.-J. Kao, T. Kiefer, S. Kienast, M.F. Lehmann, P. Martinez, M. McCarthy, J. Möbius, T. F. Pedersen, T. M. Quan, E. Ryabenko, A. Schmittner, R. Schneider, A. Schneider-Mor, M. Shigemitsu, D. Sinclair, C. Somes, A. Studer, R. Thunell, and J.-Y. Yang (2012). A review of nitrogen isotopic alteration in marine sediments. Paleoceanography, 27, PA4203, doi:10.1029/2012PA002321.

Walder, F., H. Niemann, M. F. Lehmann, T. Boller, A. Wiemken (2012). Common goods of plants shared under unequal terms of trade. Plant Physiology, Vol. 159: 789-797; doi: 10.1104/pp.112.195727. Featured Article!


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2011

Alewell, C., Giesler, R., Klaminder, J. Leifeld, J., Rollog, M. (2011). Stable carbon isotopes as indicators for environmental change in palsa peats. Biogeosciences, 8(7): 17691778. DOI: 10.5194/bg-8-1769-2011

Deek, A., K. Emeis, J. van Beusekom (2011). Nitrogen removal in coastal sediments of the German Wadden Sea. Biogeochemistry, DOI 10.1007/s10533-011-9611-1

Holler, T., G. Wegener, H. Niemann, C. Deusner, T.G. Ferdelman, A. Boetius, B. Brunner, and F. Widdel (2011). Carbon and sulfur back flux during anaerobic microbial oxidation of methane and coupled sulfate reduction. PNAS, doi: 10.1073/pnas.1106032108.

Rutschmann, S.,  M. Matschiner, M. Damerau, M.F. Lehmann, R. Hanel, and W. Salzburger (2011). Parallel ecological diversification in Antarctic notothenioid fishes as evidence for adaptive radiation. Molecular Ecology. doi: 10.1111/j.1365-294X.2011.05279

Sherwood. O.A., M.F. Lehmann,  C.J. Schubert, D.B. Scott, M.D. McCarthy (2011). Nutrient regime shift in the western north Atlantic indicated by compound-specific δ15N of deep-see Gorgonian corals. PNAS, doi:10.1073/pnas.1004904108.

Suárez-Suárez, A., A. López-López, A. Tovar-Sánchez, P. Yarza, A. Orfila, J. Terrados, J. Arnds; S. Marqués, H. Niemann, P. Schmitt-Kopplin, R. Amann, R. Rosselló-Móra (2011). Response of sulphate-reducing bacteria to an artificial oil-spill in a coastal marine sediment. Environmental Microbiology, 13(6): 1488-1499, doi:10.1111/j.1462-2920.2011.02451.x

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2010

Ariztegui, D., F. S. Anselmetti, J.-M. Robbiani, S. M. Bernasconi, E. Xhemo, A. Gilli and M.F. Lehmann (2010). Natural and human-induced environmental change in southern Albania for the last 300 years — Constraints from the Lake Butrint sedimentary record, Global and Planetary Change, Vol. 71, Iss. 3-4, pages 183-192

Joye, S.B., M. W. Bowles, V. A. Samarkin, K. S. Hunter, and H. Niemann (2010). Biogeochemical signatures and microbial activity of different cold seep habitats along the Gulf of Mexico lower slope. Deep Sea Research II 57, 1990-2001.

López-López, A., P. Yarza, M. Richter, A. Suárez-Suárez, H. Niemann, J. Antón, R. Rosselló-Móra (2010). Extremely halophilic microbial communities in anaerobic sediments from a solar saltern. Environmental Microbiology Reports 2, 258-271.

Niemann, H. and A. Boetius (2010). Mud Volcanoes. In: Microbiology of Hydrocarbons, Oils, Lipids (ed. Timmis, K. N.), Part 3, 205-214. Springer, New York.

Somes, C., A. Schmittner, A. Mix; R. Letelier, E. Galbraith,  M. F. Lehmann, M. Altabet, J. Montoya, M. Eby, A. Bourbonnais (2010). Simulating the Global Distribution of Nitrogen Isotopes in the Ocean. Global Biogeochemical Cycles, 24, GB4019, doi:10.1029/2009GB003767.

Sommer, S., P. Linke, O. Pfannkuche, H. Niemann, T. Treude (2010). Benthic respiration in a novel seep habitat dominated by dense beds of ampharetid polychaetes at the Hikurangi Margin (New Zealand). Marine Geology 272, 223-232.

Thibodeau, B., M.F. Lehmann, J. Kovarzyk, A. Mucci, Y. Gelinas, D. Gilbert, R. Maranger, and M. Alkhatib (2010). Benthic nutrient fluxes along the Laurentian Channel: Environmental controls and impact on the N-budget of the St. Lawrence marine system. Estuarine, Coastal and Shelf Science 90(4):195-205.


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2009

Bourbonnais, A., M. F. Lehmann, J.J. Waniek, and D.E. Schulz-Bull (2009). Nitrate isotope anomalies reflect N2 fixation in the Azores Front region (subtropical NE Atlantic). Journal of Geophysical Research – Ocean, 114, C03003, doi:10.1029/2007JC004617.

Lehmann, M.F., B. Barnett, Y. Gélinas, D. Gilbert, R. Maranger, A. Mucci, B. Sundby, and B. Thibodeau (2009). Aerobic respiration and hypoxia in the lower St. Lawrence Estuary: Stable isotope ratios of dissolved oxygen constrain oxygen sink partitioning. Limnology Oceanography 54: 2157-2169

Niemann, H.,  D. Fischer, D. Graffe, K. Knittel, A. Montiel, O. Heilmayer, K. Nöthen, T. Pape, S. Kasten, G. Bohrmann, A. Boetius, and J. Gutt (2009). Biogeochemistry of a low-activity cold seep in the Larsen B area, western Weddell Sea, Antarctica. Biogeosciences, 6, 2383-2395.

Omoregie, E., H. Niemann, V. Mastalerz, G. de Lange, A. Stadnitskaia, J. Mascle, J.P. Foucher, A. Boetius (2009). Microbial methane oxidation and sulfate reduction at cold seeps of the Nile Deep Sea Fan (Eastern Mediterranean Sea). Marine Geology 261, 114-127.

Sigman, D.M., DiFiore, P.J., Hain, M.P., Deutsch, C., Wang, Y., Karl, D.M., Knapp A.N., Lehmann, M.F., and Pantoja, S. (2009). The dual isotopes of nitrate as a constraint  on the cycle and budget of oceanic fixed nitrogen. Deep-Sea Research I 56, 1419–1439.

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2008

Cloquet, C.,  J. Carignan, M. F. Lehmann, and F. Vanhaecke (2008). Variation in the isotopic composition of zinc in the natural environment and the use of zinc isotopes in biogeosciences. A review, Analytical and Bioanalytical Chemistry, 390 : 451-463.


Elvert, M. and H. Niemann (2008). Unsual steroid and hopanoid biosynthesis by aerobic methanotrophs at an active methane-seeping mud volcano. Organic Geochemistry  39, 167-177.

Granger, J., D.M. Sigman, M.F. Lehmann, P.D. Tortell (2008). Nitrogen and oxygen isotope fractionation during dissimilatory nitrate reduction by denitrifying bacteri. Limnology and Oceanography 53: 2533-2545.

Kienast, M, M. F. Lehmann, A. Timmermann, E. Galbraith, T. Bolliet, A. Holbourn, C. Normandeau, C. Laj (2008). A mid-Holocene transition in the nitrogen dynamics of the Western Equatorial Pacific: Evidence of a deepening thermocline? Geophysical Research Letters 35, L23610, doi:10.1029/2008GL03546.

Lösekann, T., A. Robador, H. Niemann, K. Knittel, A. Boetius, N. Dubilier (2008). Endosymbiosis between Bacteria and Deep-Sea Siboglinid Tubeworms from an Arctic Cold Seep (Haakon Mosby Mud Volcano, Barents Sea). Environmental Microbiology 10, 3237-3254.

Niemann, H. and M. Elvert (2008). Diagnostic lipid biomarker and stable carbon isotope signatures of microbial communities mediating the anaerobic oxidation of methane with sulphate. Organic Geochemistry 39, 1668-1677.

Wegener, G., H. Niemann, M. Elvert, K.-U. Hinrichs, A. Boetius (2008). Assimilation of methane and inorganic carbon by microbial communities mediating the anaerobic oxidation of methane. Environmental Microbiology 10 (9), 2287–2298.

Wegener, G., M. Shovitri, K. Knittel, H. Niemann, M. Hovland, A. Boetius (2008). Biogeochemical processes and microbial diversity of the Gullfaks and Tommeliten methane seeps (Northern North Sea). Biogeosciences 5, 1127–1144.


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2007 and before

Lehmann M. F., D.M. Sigman, D.C. McCorkle, J. Granger, S. Hoffmann, G. Cane, B.G. Brunelle (2007). The distribution of nitrate 15N/14N in marine sediments and the impact of benthic nitrogen loss on the isotopic composition of oceanic nitrate. Geochimica et Cosmochimica Acta, doi:10.1016/j.gca.2007.07.025


Granger J., D. M. Sigman, M. G. Prokopenko, M.F. Lehmann, P. D. Tortell (2006). A method for nitrite removal in nitrate N and O isotope analyses. Limnology and Oceanography – Methods. Vol. 4:205-212.


Lehmann, M.F., D M. Sigman, D. C. McCorkle, B. G. Brunelle, S. Hoffmann, M. Kienast, G. Cane, and J. Clement (2005). The origin of the deep Bering Sea nitrate deficit - Constraints from the nitrogen and oxygen isotopic composition of water-column nitrate and benthic nitrate fluxes. Global BiogeochemicalCycles Vol. 19, GB4005, doi:10.1029/2005GB002508.


Sigman, D.M., J. Granger, P. DiFiore, M.F. Lehmann, A. van Geen, R. Ho, and G. Cane (2005). Coupled nitrogen and oxygen isotope measurements of nitrate along the North Pacific margin. Global Biogeochemical Cycles Vol. 19, GB4005, doi:10.1029/2005GB002458.


Sigman, D.M., J. Granger, P. DiFiore, M.F. Lehmann, A. van Geen, R. Ho, and G. Cane (2005). Correction to “Coupled nitrogen and oxygen isotope measurements of nitrate along the eastern North Pacific margin”, Global Biogeochemical Cycles Vol.20 GB1005, doi:10.1029/2005GB002682

Lehmann, M.F., D. M. Sigman, and W.M. Berelson (2004). The effect of benthic nitrogen cycling on the 15N/14N and 18O/16O of oceanic nitrate. Marine Chemistry 88: 1-20.


Lehmann, M.F., S. M. Bernasconi, A. Barbieri, M. Simona, and J. A. McKenzie (2004). Seasonal variation of the δ13C and δ15N of particulate and dissolved carbon and nitrogen in Lake Lugano: Constraints on biogeochemical cycling in a eutrophic lake. Limnology and Oceanography 49(2): 415-429.


Lehmann, M.F., S. M. Bernasconi, A. Barbieri, M. Simona, and J. A. McKenzie (2004). Interannual variation of the isotopic composition of sedimenting organic nitrogen and carbon: A long-term sediment trap study. Limnology and Oceanography 49(3): 839-849 .


Lehmann, M.F., P. Reichert, S.M. Bernasconi, A. Barbieri and J.A. McKenzie (2003). Modelling nitrogen and oxygen isotope fractionation during denitrification in a lacustrine redox transition zone. Geochimica et Cosmochimica Acta vol. 67(14), 2529-2542.


Lehmann, M.F., S.M. Bernasconi, A. Barbieri, and J.A. McKenzie (2002). Preservation of organic matter and alteration of its carbon and nitrogen isotope composition during simulated and in situ early sedimentary diagenesis. Geochimica et Cosmochimica Acta vol. 66(20), 3573-3584.


Lehmann, M.F., S.M. Bernasconi, and J.A. McKenzie (2001). A simple method for the extraction of ammonium from freshwaters for nitrogen isotope analysis. Analytical Chemistry, vol. 73(19), 4717-4721.


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