Dr. Marcel Bliedtner

08/2019
PhD, Dr. phil. nat., University of Bern
Evaluating the potential of leaf wax biomarkers in fluvial sediment-paleosol sequences – A case study from the upper Alazani River, SE Georgia (Caucasus)

01/2016 – 08/2019
PhD studies in Climate Sciences, Oeschger Centre for Climate Change Research, University of Bern

Since 09/2017
Research associate at the Institute of Geography, FSU Jena

05/2017 – 08/2017
Technician in the Sedimentology group, Swiss Federal Institute of Aquatic Science and Technology (Eawag)

01/2016 – 05/2017
Research associate at the Institute of Geography, University of Bern

01/2015 – 12/2015
Research internship at the Institute of Geography, University of Bern

10/2012 – 07/2015
Studies in Physical Geography (M.Sc.), University of Leipzig

10/2009 – 01/2013
Studies in Geography (B.Sc.), University of Leipzig

Holocene climate and landscape evolution, paleoclimatology, biomarker analyses, radiocarbon dating, stable isotopes, soil organic carbon cycling, fluvial, lake and loess sediments

Mongolia, Caucasus region, Switzerland, Siberia

Submitted/in revision

• Zech, M., Lerch, M., Bliedtner, M., Bromm, T., Seemann, F., Szidat, S., Salazar, G., Zech, R., Glaser, B., Haas, J. N., Schäfer, D., Geitner, C., submitted. Revisiting the subalpine Mesolithic site Ullafelsen in the Fotsch Valley, Stubai Alps, Austria – new insights into pedogenesis and landscape evolution from leaf wax-derived n-alkanes, black carbon and radiocarbon dating.
• Strobel, P., Bliedtner, M., Carr, A.S., Frenzel, P., Klaes, B., Salazar, G., Struck, J., Szidat, S., Zech, R., Haberzettl, T. (2020). Holocene sea level and environmental change at the southern Cape - an 8.5 kyr multi-proxy paleoclimate record from lake Voёlvlei, South Africa. Clim. Past Discuss. 2020, 1-37.

2021

• Strobel, P., Struck, J., Zech, R., Bliedtner, M. (2021): The spatial distribution of sedimentary compounds and their environmental implications in surface sediments of Lake Khar Nuur (Mongolian Altai). Earth Surface Processes and Landforms. DOI: https://doi.org/10.1002/esp.5049.

2020

• Suchodoletz, H. von, Richter, C., Walther, F., Bliedtner, M., Eloshvili, M., Losaberidze, L., Hausdorf, B., 2020. Snail assemblages in Holocene floodplain research – an example from the southern Caucasus. E&G Quaternary Science Journal 69(2), 247–260. doi:10.5194/egqsj-69-247-2020.
• Struck, J., Bliedtner, M., Strobel, P., Bittner, L., Bazarradnaa, E., Andreeva, D., Zech, W., Glaser, B., Zech, M., Zech, R., 2020. Leaf Waxes and Hemicelluloses in Topsoils Reflect the δ2H and δ18O Isotopic Composition of Precipitation in Mongolia. Frontiers in Earth Science 8. doi:10.3389/feart.2020.00343.
• Bittner, L., Bliedtner, M., Grady, D., Gil-Romera, G., Martin-Jones, C., Lemma, B., Mekonnen, B., Lamb, H.F., Yang, H., Glaser, B., Szidat, S., Salazar, G., Rose, N.L., Opgenoorth, L., Miehe, G., Zech, W., Zech, M., 2020. Revisiting afro-alpine Lake Garba Guracha in the Bale Mountains of Ethiopia: rationale, chronology, geochemistry, and paleoenvironmental implications. Journal of Paleolimnology. doi:10.1007/s10933-020-00138-w.
• Bliedtner, M., Zech, R., Zech, J., Schäfer, I., Suchodoletz, H., 2020. A first Holocene leaf wax isotope‐based paleoclimate record from the semi‐humid to semi‐arid south‐eastern Caucasian lowlands. Journal of Quaternary Science. doi:10.1002/jqs.3210. https://onlinelibrary.wiley.com/doi/full/10.1002/jqs.3210
• Bliedtner, M., Suchodoletz, H. von, Schäfer, I., Welte, C., Salazar, G., Szidat, S., Haas, M., Dubois, N., Zech, R., 2020. Age and origin of leaf wax n-alkanes in fluvial sediment-paleosol sequences and implications for paleoenvironmental reconstructions. Hydrol. Earth Syst. Sci. 24(4), 2105–2120. doi:10.5194/hess-24-2105-2020. https://www.hydrol-earth-syst-sci.net/24/2105/2020/
• Hepp, J., Schäfer, I.K., Lanny, V., Franke, J., Bliedtner, M., Rozanski, K., Glaser, B., Zech, M., Eglinton, T.I., Zech, R., 2020. Evaluation of bacterial glycerol dialkyl glycerol tetraether and ²H–¹⁸O biomarker proxies along a central European topsoil transect. Biogeosciences 17(3), 741–756. doi:10.5194/bg-17-741-2020.
• Strobel, P., Haberzettl, T., Bliedtner, M., Struck, J., Glaser, B., Zech, M., Zech, R., 2020. The potential of δ²H-alkanes and δ¹⁸Osugar for paleoclimate reconstruction – A regional calibration study for South Africa. Science of The Total Environment, 137045. doi:10.1016/j.scitotenv.2020.137045.
• Struck, J., Bliedtner, M., Strobel, P., Schumacher, J., Bazarradnaa, E., Zech, R., 2020. Leaf wax n-alkane patterns and compound-specific δ¹³C of plants and topsoils from semi-arid and arid Mongolia. Biogeosciences 17(3), 567–580. doi:10.5194/bg-17-567-2020.

2019

• Hepp, J., Wüthrich, L., Bromm, T., Bliedtner, M., Schäfer, I.K., Glaser, B., Rozanski, K., Sirocko, F., Zech, R., Zech, M., 2019. How dry was the Younger Dryas? Evidence from a coupled δ²H–δ¹⁸O biomarker paleohygrometer applied to the Gemündener Maar sediments, Western Eifel, Germany. Clim. Past 15(2), 713–733. doi:10.5194/cp-15-713-2019.

2018

• Bliedtner, M., Zech, R., Kühn, P., Schneider, B., Zielhofer, C., Suchodoletz, H. von, 2018. The potential of leaf wax biomarkers from fluvial soil-sediment sequences for paleovegetation reconstructions - Upper Alazani River, central southern Greater Caucasus (Georgia). Quaternary Science Reviews 196, 62–79. doi:10.1016/j.quascirev.2018.07.029.
• Schäfer, I.K., Bliedtner, M., Wolf, D., Kolb, T., Zech, J., Faust, D., Zech, R., 2018. A δ13C and δ2H leaf wax record from the Late Quaternary loess-paleosoil sequence El Paraíso, Central Spain. Palaeogeography, Palaeoclimatology, Palaeoecology 507, 52–59. doi:10.1016/j.palaeo.2018.06.039.
• Bliedtner, M., Schäfer, I.K., Zech, R., Suchodoletz, H. von, 2018. Leaf wax n-alkanes in modern plants and topsoils from eastern Georgia (Caucasus) – implications for reconstructing regional paleovegetation. Biogeosciences 15(12), 3927–3936. doi:10.5194/bg-15-3927-2018.
• Wolf, D., Kolb, T., Alcaraz-Castaño, M., Heinrich, S., Baumgart, P., Calvo, R., Sánchez, J., Ryborz, K., Schäfer, I., Bliedtner, M., Zech, R., Zöller, L., Faust, D., 2018. Climate deteriorations and Neanderthal demise in interior Iberia. Scientific reports 8(1), 7048. doi:10.1038/s41598-018-25343-6.
• Lerch, M., Bliedtner, M., Roettig, C.-B., Schmidt, J.-U., Szidat, S., Salazar, G., Zech, R., Glaser, B., Kleber, A., Zech, M., 2018. Lipid biomarkers in aeolian sediments under desert pavements – potential and first results from the Black Rock Desert, Utah, USA, and Fuerteventura, Canary Islands, Spain. E&G Quaternary Sci. J. 66(2), 103–108. doi:10.5194/egqsj-66-103-2018

2017

• Wüthrich, L., Bliedtner, M., Schäfer, I.K., Zech, J., Shajari, F., Gaar, D., Preusser, F., Salazar, G., Szidat, S., Zech, R., 2017. Late Quaternary climate and environmental reconstruction based on leaf wax analyses in the loess sequence of Möhlin, Switzerland. E&G Quaternary Sci. J. 66(2), 91–100. doi:10.5194/egqsj-66-91-2017.
  
  
• Haas, M., Bliedtner, M., Borodynkin, I., Salazar, G., Szidat, S., Eglinton, T.I., Zech, R., 2017. Radiocarbon Dating of Leaf Waxes in the Loess-Paleosol Sequence Kurtak, Central Siberia. Radiocarbon, 1–12. doi:10.1017/RDC.2017.1.

2016

• Schäfer, I.K., Bliedtner, M., Wolf, D., Faust, D., Zech, R., 2016. Evidence for humid conditions during the last glacial from leaf wax patterns in the loess–paleosol sequence El Paraíso, Central Spain. Quaternary International. doi:10.1016/j.quaint.2016.01.061.