All Stories

  1. Controls on brGDGT Production in the Seasonally Anoxic Water Column and Sediments of Rotsee (Lake Rot)

    Article • Journal of Geophysical Research Biogeosciences, December 2025, American Geophysical Union (AGU)

    Professor Mark Alexander Lever

  2. Distribution of methane-cycling archaea in buried ridge flank sediment: community zonation, activity, and potential environmental drivers

    Article • Frontiers in Microbiology, November 2025, Frontiers

    Professor Mark Alexander Lever

  3. Microbial sulfur cycling across a 13 500-year-old lake sediment record

    Article • Biogeosciences, October 2025, Copernicus GmbH

    Professor Mark Alexander Lever

  4. Methanogenesis by CO2 reduction dominates lake sediments with different organic matter compositions

    Article • Biogeosciences, September 2025, Copernicus GmbH

    Professor Mark Alexander Lever

  5. Rooting out ecosystem vulnerability in salt marshes

    Article • Proceedings of the National Academy of Sciences, June 2025, Proceedings of the National Academy of Sciences

    Kyle Runion, Professor Mark Alexander Lever

  6. Holocene environmental change in Rotsee and its impact on sedimentary carbon storage

    Article • Journal of Paleolimnology, June 2025, Springer Science + Business Media

    Professor Mark Alexander Lever

  7. Deep microbial life in Lavey-les-Bains stays stable throughout the year

    Article • Proceedings of the National Academy of Sciences, June 2025, Proceedings of the National Academy of Sciences

    Sébastien Giroud, Professor Mark Alexander Lever

  8. Methanogenesis by CO2 reduction dominates lake sediments with different organic matter compositions

    Article • February 2025, Copernicus GmbH

    Professor Mark Alexander Lever

  9. Supplementary material to "Methanogenesis by CO2 reduction dominates lake sediments with different organic matter compositions"

    Article • February 2025, Copernicus GmbH

    Professor Mark Alexander Lever

  10. Drivers of methane-cycling archaeal abundances, community structure, and catabolic pathways in continental margin sediments

    Article • Frontiers in Microbiology, February 2025, Frontiers

    Professor Mark Alexander Lever

  11. Persistent functional and taxonomic groups dominate an 8,000-year sedimentary sequence from Lake Cadagno, Switzerland

    Article • Frontiers in Microbiology, February 2025, Frontiers

    Professor Mark Alexander Lever

  12. Active microbial sulfur cycling across a 13,500-year-old lake sediment record

    Article • January 2025, Copernicus GmbH

    Professor Mark Alexander Lever

  13. Supplementary material to "Active microbial sulfur cycling across a 13,500-year-old lake sediment record"

    Article • January 2025, Copernicus GmbH

    Professor Mark Alexander Lever

  14. brGDGT paleothermometer MBT’5ME as a novel diagnostic tool to detect thermal stratification in lakes

    Article • January 2025, Copernicus GmbH

    Professor Mark Alexander Lever

  15. Supplementary material to "The effect of a short oxygen exposure period on algal biomass degradation and methane release from eutrophic and oligotrophic lake sediments"

    Article • January 2025, Copernicus GmbH

    Professor Mark Alexander Lever

  16. The effect of a short oxygen exposure period on algal biomass degradation and methane release from eutrophic and oligotrophic lake sediments

    Article • January 2025, Copernicus GmbH

    Professor Mark Alexander Lever

  17. Capturing spatiotemporal variation in salt marsh belowground biomass, a key resilience metric, through geoinformatics

    Article • Ecosphere, December 2024, Wiley

    Professor Mark Alexander Lever

  18. Controls on brGDGT distributions in the suspended particulate matter of the seasonally anoxic water column of Rotsee

    Article • October 2024, Copernicus GmbH

    Professor Mark Alexander Lever

  19. Supplementary material to "Controls on brGDGT distributions in the suspended particulate matter of the seasonally anoxic water column of Rotsee"

    Article • October 2024, Copernicus GmbH

    Professor Mark Alexander Lever

  20. Impacts of temperature and fluid seepage on organic matter composition in sediments of an active hydrothermal basin

    Article • Organic Geochemistry, October 2024, Elsevier

    Professor Mark Alexander Lever

  21. Peat Particulate Organic Matter Accepts Electrons During In Situ Incubation in the Anoxic Subsurface of Ombrotrophic Bogs

    Article • Journal of Geophysical Research Biogeosciences, September 2024, American Geophysical Union (AGU)

    Professor Mark Alexander Lever

  22. Seawater contamination by coring and pore water sampling of marine sediments

    Article • Chemical Geology, April 2024, Elsevier

    Professor Mark Alexander Lever

  23. Seasonal temperature dependency of aquatic branched glycerol dialkyl glycerol tetraethers: A mesocosm approach

    Article • Organic Geochemistry, March 2024, Elsevier

    Professor Mark Alexander Lever

  24. Editorial: Studies on life at the energetic edge – from laboratory experiments to field-based investigations, volume II

    Article • Frontiers in Microbiology, January 2024, Frontiers

    Professor Mark Alexander Lever

  25. Hydrogen–independent CO2 reduction dominates methanogenesis in five temperate lakes that differ in trophic states

    Article • ISME Communications, January 2024, Oxford University Press (OUP)

    Professor Mark Alexander Lever

  26. Metagenomic and -transcriptomic analyses of microbial nitrogen transformation potential, and gene expression in Swiss lake sediments

    Article • ISME Communications, January 2024, Oxford University Press (OUP)

    Professor Mark Alexander Lever

  27. Ancient DNA is preserved in fish fossils from tropical lake sediments

    Article • Molecular Ecology, October 2023, Wiley

    Professor Mark Alexander Lever

  28. Active microbial sulfur cycling in 13,500-year-old lake sediments

    Article • October 2023, Copernicus GmbH

    Professor Mark Alexander Lever

  29. Carbohydrate compositional trends throughout Holocene sediments of an alpine lake (Lake Cadagno)

    Article • Frontiers in Earth Science, August 2023, Frontiers

    Professor Mark Alexander Lever

  30. Differential impact of two major polychaete guilds on microbial communities in marine sediments: a microcosm study

    Article • Frontiers in Marine Science, June 2023, Frontiers

    Professor Mark Alexander Lever

  31. Zonation of the active methane-cycling community in deep subsurface sediments of the Peru trench

    Article • Frontiers in Microbiology, May 2023, Frontiers

    Professor Mark Alexander Lever

  32. Chromium Cycling in Redox‐Stratified Basins Challenges δ53Cr Paleoredox Proxy Applications

    Article • Geophysical Research Letters, October 2022, American Geophysical Union (AGU)

    Professor Mark Alexander Lever

  33. Methane Production by Facultative Anaerobic Wood-Rot Fungi via a New Halomethane-Dependent Pathway

    Article • Microbiology Spectrum, October 2022, ASM Journals

    Professor Mark Alexander Lever

  34. Formation of calcium chloride brines in volcaniclastic-rich sediments

    Article • Frontiers in Earth Science, September 2022, Frontiers

    Professor Mark Alexander Lever

  35. Deposit-feeding worms control subsurface ecosystem functioning in intertidal sediment with strong physical forcing

    Article • PNAS Nexus, August 2022, Oxford University Press (OUP)

    Professor Mark Alexander Lever

  36. Long-term preservation of biomolecules in lake sediments: potential importance of physical shielding by recalcitrant cell walls

    Article • PNAS Nexus, June 2022, Oxford University Press (OUP)

    Professor Mark Alexander Lever

  37. Sedimentary Hydrodynamic Processes Under Low-Oxygen Conditions: Implications for Past, Present, and Future Oceans

    Article • Frontiers in Earth Science, May 2022, Frontiers

    Professor Mark Alexander Lever

  38. Deposit-feeding worms control subsurface ecosystem functioning in intertidal sediment with strong physical forcing

    Article • April 2022, Cold Spring Harbor Laboratory Press

    Professor Mark Alexander Lever

  39. Redox Zone and Trophic State as Drivers of Methane-Oxidizing Bacterial Abundance and Community Structure in Lake Sediments

    Article • Frontiers in Environmental Science, March 2022, Frontiers

    Professor Mark Alexander Lever

  40. Microbial Nitrogen Transformation Potential in Sediments of Two Contrasting Lakes Is Spatially Structured but Seasonally Stable

    Article • mSphere, February 2022, ASM Journals

    Professor Mark Alexander Lever

  41. Ancient and Modern Geochemical Signatures in the 13,500-Year Sedimentary Record of Lake Cadagno

    Article • Frontiers in Earth Science, January 2022, Frontiers

    Professor Mark Alexander Lever

  42. Interactions between temperature and energy supply drive microbial communities in hydrothermal sediment

    Article • Communications Biology, August 2021, Springer Science + Business Media

    Professor Mark Alexander Lever

  43. Carbon sources of benthic fauna in temperate lakes across multiple trophic states

    Article • Biogeosciences, July 2021, Copernicus GmbH

    Professor Mark Alexander Lever

  44. Effects of Macrofaunal Recolonization on Biogeochemical Processes and Microbiota—A Mesocosm Study

    Article • Water, June 2021, MDPI AG

    Professor Mark Alexander Lever

  45. Eutrophication as a driver of microbial community structure in lake sediments

    Article • Environmental Microbiology, June 2020, Wiley

    Professor Mark Alexander Lever

  46. Macrofaunal control of microbial community structure in continental margin sediments

    Article • Proceedings of the National Academy of Sciences, June 2020, Proceedings of the National Academy of Sciences

    Professor Mark Alexander Lever

  47. Improving the extraction efficiency of sedimentary carbohydrates by sequential hydrolysis

    Article • Organic Geochemistry, March 2020, Elsevier

    Professor Mark Alexander Lever

  48. Effects of eutrophication on sedimentary organic carbon cycling in five temperate lakes

    Article • Biogeosciences, September 2019, Copernicus GmbH

    Professor Mark Alexander Lever

  49. Origin of Short-Chain Organic Acids in Serpentinite Mud Volcanoes of the Mariana Convergent Margin

    Article • Frontiers in Microbiology, July 2019, Frontiers

    Professor Mark Alexander Lever

  50. Experimental calibration of clumped isotopes in siderite between 8.5 and 62 °C and its application as paleo-thermometer in paleosols

    Article • Geochimica et Cosmochimica Acta, June 2019, Elsevier

    Professor Mark Alexander Lever

  51. Improving the Accuracy of Flow Cytometric Quantification of Microbial Populations in Sediments: Importance of Cell Staining Procedures

    Article • Frontiers in Microbiology, April 2019, Frontiers

    Professor Mark Alexander Lever

  52. Effects of eutrophication on sedimentary organic carbon cycling in five temperate lakes

    Article • March 2019, Copernicus GmbH

    Professor Mark Alexander Lever

  53. Marine Transform Faults and Fracture Zones: A Joint Perspective Integrating Seismicity, Fluid Flow and Life

    Article • Frontiers in Earth Science, March 2019, Frontiers

    dr umberta tinivella, Professor Mark Alexander Lever, Joao Duarte

  54. The Limits of Life and the Biosphere in Earth’s Interior

    Article • Oceanography, March 2019, The Oceanography Society

    Professor Mark Alexander Lever

  55. Environmental Fate of RNA Interference Pesticides: Adsorption and Degradation of Double-Stranded RNA Molecules in Agricultural Soils

    Article • Environmental Science & Technology, January 2019, American Chemical Society (ACS)

    Professor Mark Alexander Lever

  56. Preservation of microbial DNA in marine sediments: Insights from extracellular DNA pools

    Article • Environmental Microbiology, September 2018, Wiley

    Professor Mark Alexander Lever

  57. Oxidation of Reduced Peat Particulate Organic Matter by Dissolved Oxygen: Quantification of Apparent Rate Constants in the Field

    Article • Environmental Science & Technology, August 2018, American Chemical Society (ACS)

    Professor Mark Alexander Lever

  58. Deep-biosphere methane production stimulated by geofluids in the Nankai accretionary complex

    Article • Science Advances, June 2018, American Association for the Advancement of Science

    Professor Mark Alexander Lever, Takeshi Tsuji

  59. Growth of sedimentary Bathyarchaeota on lignin as an energy source

    Article • Proceedings of the National Academy of Sciences, May 2018, Proceedings of the National Academy of Sciences

    Professor Mark Alexander Lever

  60. D:L-Amino Acid Modeling Reveals Fast Microbial Turnover of Days to Months in the Subsurface Hydrothermal Sediment of Guaymas Basin

    Article • Frontiers in Microbiology, May 2018, Frontiers

    Professor Mark Alexander Lever

  61. Aeolian dispersal of bacteria in southwest Greenland: their sources, abundance, diversity and physiological states

    Article • FEMS Microbiology Ecology, February 2018, Oxford University Press (OUP)

    Professor Mark Alexander Lever

  62. Transition from hydrothermal vents to cold seeps records timing of carbon release in the Guaymas Basin, Gulf of California

    Article • Biogeosciences Discussions, February 2018, Copernicus GmbH

    Professor Mark Alexander Lever

  63. Oxygen isotope fractionation in the siderite-water system between 8.5 and 62 °C

    Article • Geochimica et Cosmochimica Acta, January 2018, Elsevier

    Professor Mark Alexander Lever

  64. Distribution and isotopic composition of trimethylamine, dimethylsulfide and dimethylsulfoniopropionate in marine sediments

    Article • Marine Chemistry, November 2017, Elsevier

    Professor Mark Alexander Lever

  65. Depth Distribution and Assembly of Sulfate-Reducing Microbial Communities in Marine Sediments of Aarhus Bay

    Article • Applied and Environmental Microbiology, September 2017, ASM Journals

    Professor Mark Alexander Lever

  66. Size and composition of subseafloor microbial community in the Benguela upwelling area examined from intact membrane lipid and DNA analysis

    Article • Organic Geochemistry, September 2017, Elsevier

    Professor Mark Alexander Lever

  67. Influence of Igneous Basement on Deep Sediment Microbial Diversity on the Eastern Juan de Fuca Ridge Flank

    Article • Frontiers in Microbiology, August 2017, Frontiers

    Professor Mark Alexander Lever

  68. Bioturbation as a key driver behind the dominance of Bacteria over Archaea in near-surface sediment

    Article • Scientific Reports, May 2017, Nature

    Professor Mark Alexander Lever

  69. Microbial community assembly and evolution in subseafloor sediment

    Article • Proceedings of the National Academy of Sciences, February 2017, Proceedings of the National Academy of Sciences

    Professor Mark Alexander Lever

  70. Exploration of cultivable fungal communities in deep coal-bearing sediments from ∼1.3 to 2.5 km below the ocean floor

    Article • Environmental Microbiology, January 2017, Wiley

    Professor Mark Alexander Lever

  71. Rifting under steam—How rift magmatism triggers methane venting from sedimentary basins

    Article • Geology, July 2016, Geological Society of America

    Professor Mark Alexander Lever

  72. IODP Expedition 337: Deep Coalbed Biosphere off Shimokita – Microbial processes and hydrocarbon system associated with deeply buried coalbed in the ocean

    Article • Scientific Drilling, June 2016, Copernicus GmbH

    Professor Mark Alexander Lever

  73. The Guaymas Basin Hiking Guide to Hydrothermal Mounds, Chimneys, and Microbial Mats: Complex Seafloor Expressions of Subsurface Hydrothermal Circulation

    Article • Frontiers in Microbiology, February 2016, Frontiers

    Professor Mark Alexander Lever, Barbara MacGregor

  74. A New Era of Methanogenesis Research

    Article • Trends in Microbiology, February 2016, Elsevier

    Professor Mark Alexander Lever

  75. In Chaotropy Lies Opportunity

    Article • Frontiers in Microbiology, January 2016, Frontiers

    Professor Mark Alexander Lever

  76. Origin, dynamics, and implications of extracellular DNA pools in marine sediments

    Article • Marine Genomics, December 2015, Elsevier

    Professor Mark Alexander Lever

  77. Endospores, prokaryotes, and microbial indicators in arable soils from three long-term experiments

    Article • Biology and Fertility of Soils, September 2015, Springer Science + Business Media

    Professor Mark Alexander Lever

  78. Exploring deep microbial life in coal-bearing sediment down to  2.5 km below the ocean floor

    Article • Science, July 2015, American Association for the Advancement of Science

    Professor Mark Alexander Lever

  79. UnculturedDesulfobacteraceaeand Crenarchaeotal group C3 incorporate13C-acetate in coastal marine sediment

    Article • Environmental Microbiology Reports, June 2015, Wiley

    Professor Mark Alexander Lever

  80. Methanogenic archaea and sulfate reducing bacteria co-cultured on acetate: teamwork or coexistence?

    Article • Frontiers in Microbiology, May 2015, Frontiers

    Professor Mark Alexander Lever

  81. Life under extreme energy limitation: a synthesis of laboratory- and field-based investigations

    Article • FEMS Microbiology Reviews, May 2015, Oxford University Press (OUP)

    Professor Mark Alexander Lever

  82. A modular method for the extraction of DNA and RNA, and the separation of DNA pools from diverse environmental sample types

    Article • Frontiers in Microbiology, May 2015, Frontiers

    Professor Mark Alexander Lever

  83. Ammonia‐oxidizing B acteria of the N itrosospira cluster 1 dominate over ammonia‐oxidizing A rchaea in oligotrophic surface sediments near t...

    Article • Environmental Microbiology Reports, April 2015, Wiley

    Professor Mark Alexander Lever

  84. Diversity of Methane-Cycling Archaea in Hydrothermal Sediment Investigated by General and Group-Specific PCR Primers

    Article • Applied and Environmental Microbiology, December 2014, ASM Journals

    Professor Mark Alexander Lever

  85. Survival of prokaryotes in a polluted waste dump during remediation by alkaline hydrolysis

    Article • Ecotoxicology, February 2014, Springer Science + Business Media

    Professor Mark Alexander Lever

  86. Genetic Evidence of Subseafloor Microbial Communities

    Article • January 2014, Elsevier

    Professor Mark Alexander Lever

  87. Predominant archaea in marine sediments degrade detrital proteins

    Article • Nature, March 2013, Springer Science + Business Media

    Professor Mark Alexander Lever

  88. Evidence for Microbial Carbon and Sulfur Cycling in Deeply Buried Ridge Flank Basalt

    Article • Science, March 2013, American Association for the Advancement of Science

    Professor Mark Alexander Lever

  89. Functional gene surveys from ocean drilling expeditions - a review and perspective

    Article • FEMS Microbiology Ecology, January 2013, Oxford University Press (OUP)

    Professor Mark Alexander Lever

  90. Endospore abundance and d:l-amino acid modeling of bacterial turnover in holocene marine sediment (Aarhus Bay)

    Article • Geochimica et Cosmochimica Acta, December 2012, Elsevier

    Professor Mark Alexander Lever

  91. Acetogenesis in the Energy-Starved Deep Biosphere – A Paradox?

    Article • Frontiers in Microbiology, January 2012, Frontiers

    Professor Mark Alexander Lever

  92. Niche Separation of Methanotrophic Archaea (ANME-1 and -2) in Methane-Seep Sediments of the Eastern Japan Sea Offshore Joetsu

    Article • Geomicrobiology Journal, February 2011, Taylor & Francis

    Professor Mark Alexander Lever

  93. Acetogenesis in Deep Subseafloor Sediments of The Juan de Fuca Ridge Flank: A Synthesis of Geochemical, Thermodynamic, and Gene-based Evidence

    Article • Geomicrobiology Journal, February 2010, Taylor & Francis

    Professor Mark Alexander Lever

  94. Archaeoglobus sulfaticallidus sp. nov., a thermophilic and facultatively lithoautotrophic sulfate-reducer isolated from black rust exposed to hot ridge flank crustal fluids

    Article • INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, January 2010, Society for General Microbiology

    Professor Mark Alexander Lever

  95. Metabolic variability in seafloor brines revealed by carbon and sulphur dynamics

    Article • Nature Geoscience, April 2009, Springer Science + Business Media

    Professor Mark Alexander Lever

  96. Fluids from the Oceanic Crust Support Microbial Activities within the Deep Biosphere

    Article • Geomicrobiology Journal, February 2008, Taylor & Francis

    Professor Mark Alexander Lever

  97. Trends in Basalt and Sediment Core Contamination During IODP Expedition 301

    Article • Geomicrobiology Journal, October 2006, Taylor & Francis

    Professor Mark Alexander Lever

  98. Microbial Community in Black Rust Exposed to Hot Ridge Flank Crustal Fluids

    Article • Applied and Environmental Microbiology, August 2006, ASM Journals

    Professor Mark Alexander Lever

  99. Heterotrophic Archaea dominate sedimentary subsurface ecosystems off Peru

    Article • Proceedings of the National Academy of Sciences, February 2006, Proceedings of the National Academy of Sciences

    Professor Mark Alexander Lever

  100. Biogeographical distribution and diversity of microbes in methane hydrate-bearing deep marine sediments on the Pacific Ocean Margin

    Article • Proceedings of the National Academy of Sciences, February 2006, Proceedings of the National Academy of Sciences

    Professor Mark Alexander Lever

  101. Methanogen Diversity Evidenced by Molecular Characterization of Methyl Coenzyme M Reductase A (mcrA) Genes in Hydrothermal Sediments of the Guaymas Basin

    Article • Applied and Environmental Microbiology, August 2005, ASM Journals

    Professor Mark Alexander Lever

  102. Response of microphytobenthic biomass to experimental nutrient enrichment and grazer exclusion at different land-derived nitrogen loads

    Article • Marine Ecology Progress Series, January 2005, Inter-Research Science Center

    Professor Mark Alexander Lever