As the Lab Manager of the Department of Archaeology Jana is responsible for the maintenance of the Department's laboratories. She supervises PhD students and postdocs in their laboratory work and is the department's health and safety officer. She is running and maintaining the mass spectrometers (Gasbench-irMS, TC/EA and EA-irMS, GC-MSD and GC-C-irMS, Los Gatos Waterisotope Analyser) in the Stable Isotope Laboratory, and is in charge of other equipment needed for the preparation of archaeological samples. In addition to the routine application of established isotope methods, Jana is involved in the development of novel stable isotope methods (such as compound specific isotope analyses of dD and 13C) in the study of the human past. In particular, Jana facilitates the use of isotope methodologies in the study of intra- and inter- societal differences in prehistoric and historical human diets, the development of detailed human stable isotope ecologies, and the development of new, detailed palaeoenvironmental proxies of immediate relevance to studies of past human responses to climatic and environmental change.
Jana received her Master in Geography at the Technical University Dresden, Germany, where she applied U/Pb dating of zircons using Laser-ICP-MS. She received her PhD from the University of Bern, Switzerland in palaeogeoecology. For her PhD she focused on landscape and climate reconstruction applying 10Be surface exposure dating. As a visiting scientist at Brown University, USA, she focused on alkenone-paleotemperature determination and foraminifera determination for estimating past ocean productivity in the eastern equatorial Pacific. At the University of Bern she ran the stable isotope laboratory as well as the cosmogenic nuclide laboratory of the biogeochemistry and palaeoclimate research group of the Department of Geography. She has supervised BSc, MSc and PhD students in lab work and research with the research focus on climate and landscape change since the last ice age applying biomarker and stable isotope analyses (compound specific dD, 13C), as well as 10Be surface exposure dating.
Hausmann, N., Prendergast, A. L., Lemonis, A., Zech, J., Roberts, P., Siozos, P., Anglos, D. (2019): Extensive elemental mapping unlocks Mg/Ca ratios as climate proxy in seasonal records of Mediterranean limpets, Scientific Reports, Volume 9, 3698, DOI: 10.1038/s41598-019-39959-9
Roberts, P., Stewart, M., Alagaili, A.N., Breeze, P., Candy, I., Drake, N., Groucutt, H.S., Scerri, E.M.L., Lee-Thorp, J., Louys, J., Zalmout, I.S., Al-Mufarreh, Y.S.A., Zech, J., Alsharekh, A.M., al Omari, A., Boivin, N., Petraglia, M. (2018). Fossil herbivore stable isotopes reveal Middle Pleistocene hominin palaeoenvironment in ‘Green Arabia’. Nature Ecology and Evolution, DOI: 10.1038/s41559-018-0698-9.
Ventresca Miller, A., Fernandes, R., Janzen, A., Nayak, A., Swift, J., Zech, J., Boivin, N., Roberts, P. (2018): Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis. J. Vis. Exp. (138), e58002, doi:10.3791/58002.
Posth, C., Nägele, K., Colleran, H., Valentin, F., Bedford, S., Kami, K. W., Shing, R., Buckley, H., Kinaston, R., Walworth, M., Clark, G. R. , Reepmeyer, Chr., Flexner, J., Maric, T., Moser, J., Gresky, J., Kiko, L., Robson, K. J., Auckland, K., Oppenheimer, S. J., Hill, A. V. S., Mentzer, A. J. , Zech, J., Petchey, F., Roberts, R., Jeong, C., Gray, R. D., Krause, J., & Powell, A. (2018): Language continuity despite population replacement in Remote Oceania, Nature Ecology & Evolution, Volume 2, pages 731–740, doi:10.1038/s41559-018-0498-2
Roberts, P., Fernandes, R., Craig, O.E., Larsen, T., Lucquin, A., Swift, J, Zech J. (2017): Calling all archaeologists: guidelines for terminology, methodology, data handling, and reporting when undertaking and reviewing stable isotope applications in archaeology. Rapid Commun Mass Spectrom. 2017 Dec 13. DOI: 10.1002/rcm.8044.
Schäfer, I.K., Wolf, D., Bliedtner, M., 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, Volume 507, 52-59, https://doi.org/10.1016/j.palaeo.2018.06.039
Wüthrich, L., Garcia Morabito, E., Zech, J., Gnägi, Chr., Trauerstein, M., Veit, H., Merchel, S., Scharf, A., Rugel, G., Christl, M., Zech, R. (2017): 10Be surface exposure dating of the last deglaciation in the Aare Valley, Switzerland, Swiss Journal of Geoscience, https://doi.org/10.1007/s00015-018-0298-3
Wüthrich, L., Bliedtner, M., Schäfer, I.K., Zech, J., Shajari, F., Gaar, F., Preusser, F., Salazar, G., Szidat, S., Zech, R. (2017): Late Quaternary climate and environmental reconstruction based on leaf wax analyses in the LPS Möhlin, Switzerland, DEUQUA 2016 special issue of “Eiszeitalter und Gegenwart”, E&G Quaternary Science Journal, 66, 91-100, https://doi.org/10.5194/egqsj-66-91-2017
Zech, J., Terrizzano, C., Morrabito-Garcia, E., Veit, H., Zech, R (2017): Timing and extent of late pleistocene glaciation in the arid Central Andes of Argentina and Chile (22°-41°S), Special Issue: Deglaciation of America: from Alaska to Tierra de Fuego, Cuadernos de Investigación Geográfica. http://doi.org/10.18172/cig.3235
Bova, S.C., Herbert, T., Rosenthal, Y., Altabet, M., Kalansky, J., Chazen, C. Mojarro, A., and Zech, J. (2014). Upward-propagating change in Eastern Equatorial Pacific intermediate water heat and carbon content during the last deglaciation. Paleoceanography, 30, 1407-1424, DOI: 10.1002/2015PA002816
May, J.-H., Zech, J., Zech, R., Preusser, F., Argollo, J., Kubik, P. W., Veit, H. (2011). Reconstruction of a complex late Quaternary glacial landscape in the Cordillera de Cochabamba (Bolivia) based on a morphostratigraphic and multiple dating approach. Quaternary Research 76 1: 106-118, http://dx.doi.org/10.1016/j.yqres.2011.05.003
Zech, R., Zech, J., Kull Ch., Kubik P. W., Veit, H., (2010). Early last glacial maximum in the Southern Central Andes reveals northward shift of the westerlies at ~39 ka. Climate of the Past 7: 41-46, doi:10.5194/cp-7-41-2011
Zech, J., Zech, R., May, J.-H., Kubik, P. W., Veit, H.(2010): Lateglacial and early Holocene glaciation in the tropical Andes caused by La Nina-like conditions, Palaeogeography Palaeoclimatology Palaeoecology 293, 248-254, http://dx.doi.org/10.1016/j.palaeo.2010.05.026
Zech, J., Zech, R., Kubik, P.W., Veit, H. (2009). Glacier and climate reconstruction at Tres Lagunas, NW Argentina, based on 10Be surface exposure dating and lake sediment analyses. Palaeogeography, Palaeoclimatology, Palaeoecology 284: 180-190, http://dx.doi.org/10.1016/j.palaeo.2009.09.023
Zech, R., May, J.-H., Kull, Ch., Ilgner, J., Kubik, P. W., and Veit, H. (2008). Timing of the late Quaternary glaciation in the Andes from ~15 to 40° S. Journal of Quaternary Science 23, 635-647, DOI: 10.1002/jqs.1200
Zech, J., Zech, R., Kubik, P.W., Veit, H. (2010). Pleistocene Glaciation in the arid Central Andes - Changes in the tropical circulation and the Southern Westerlies, Zurich, Ion Beam Physics, ETH, https://www1.ethz.ch/ams/publications/annual_reports/2010/062
Zech, J., Zech, R., Kubik, P.W., Veit, H. (2009). Pleistocence glaciation in the subtropical Andes. Paleoclimate reconstruction and a calibration site for SED. Zurich, Ion Beam Physics, ETH, https://www1.ethz.ch/ams/publications/annual_reports/2009/58
Zech, J., Jeffries, T., Faust, D., Ullrich, B., Linnemann, U. (2009). U/Pb-dating and geochemical characterization of the Brocken and the Ramberg Pluton, Harz Mountains, Germany, Geologica Saxonica, 56, 79-94, http://www.senckenberg.de/files/content/forschung/publikationen/geologicasaxonica/56-1/02_zech.pdf