Dr. Jérôme Kaiser

2026

• Kaiser, J., C. Braun, N. Hollmann and H. W. Arz (2026). Automated solid phase extraction of environmental lipid biomarkers. J . Chromatogr. 1770: 466757, doi: 10.1016/j.chroma.2026.466757
• Kaiser, J., F. Lamy, C. B. Lange and H. W. Arz (2026). Air temperature and rainfall variability in south-western Patagonia (52°S) during the Antarctic Cold Reversal and the Holocene. Palaeogeogr., Palaeoclimatol., Palaeoecol. 696: 113880, doi: 10.1016/j.palaeo.2026.113880
• Kaiser, J., J. A. Collins, H. W. Arz and F. Lamy (2026). Mid- to late Holocene centennial-scale shifts of the Southern Hemisphere Westerly winds. Holocene 36: 09596836251387256, doi: 10.1177/09596836251387256
• Maldonado-Ugarte, J., S. Bertrand, J. Kaiser, V. Acuña-Rivera, L. Rebolledo and C. B. Lange (2026). Colder and wetter conditions in western Patagonia during the 16th to 19th centuries. Palaeogeogr., Palaeoclimatol., Palaeoecol. 692: 113776, doi: 10.1016/j.palaeo.2026.113776

2025

• Bolius, S., A. Schmidt, J. Kaiser, H. W. Arz, O. Dellwig, U. Karsten, L. S. Epp and A. Kremp (2025). Resurrection of a diatom after 7000 years from anoxic Baltic Sea sediment. ISME J. 19: wrae252, doi: 10.1093/ismejo/wrae252
• Bolius, S., J. Hinners, J. Kaiser, S. Folgmann, P. F. Steiner, H. W. Arz and A. Kremp (2025). Millennia-Long Evolution of Temperature and Salinity Dependence of a Baltic Sea Diatom Revealed by Resurrection Experiments. Glob. Change Biol. 31: e70408, doi: 10.1111/gcb.70408
• Çaldırak, H., Z. B. Ön, M. Serkan Akkiraz, M. Namık Çağatay, B. Ghaleb, S. Wulf, K. Kadir Eriş, D. Acar, J. Kaiser and S. Akçer-Ön (2025). Chronology and environmental changes from a sediment core spanning the last 485 ka from Lake Acıgöl (SW Anatolia). Quat. Int. 722: 109710, doi: 10.1016/j.quaint.2025.109710
• Hochfeld, I., B. A. Ward, A. Kremp, J. Romahn, A. Schmidt, M. Bálint, L. Becks, J. Kaiser, H. W. Arz, S. Bolius, L. S. Epp, M. Pfenninger, C. A. Klausmeier, E. Litchman and J. Hinners (2025). Ideas and perspectives: How sediment archives can improve model projections of marine ecosystem change. Biogeosciences 22: 2363–2380, doi: 10.5194/bg-22-2363-2025
• Müller, D. J. M., I. Neugebauer, R. J. Kearney, M. J. Schwab, O. Appelt, M. Czymzik, J. Kaiser, H. W. Arz and A. Brauer (2025). Constraining the Baltic Sea sediment chronology using tephrochronology. Geology 53: 743–747, doi: 10.1130/g53346.1
• Ön, Z. B., M. E. Ateş and J. Kaiser (2025). A conceptual and statistical framework for delineating the timing of a stratigraphic transition: Holocene-Anthropocene boundary as a case study. Progress in Physical Geography: Earth and Environment 49: 63-83, doi: 10.1177/03091333241310742
• Perren, B. B., J. Kaiser, H. W. Arz, O. Dellwig, D. A. Hodgson and F. Lamy (2025). Poleward displacement of the Southern Hemisphere Westerlies in response to Early Holocene warming. Commun. Earth Environ. 6: 164, doi: 10.1038/s43247-025-02129-z
• Romahn, J., A. Schmidt, J. Kaiser, D. Baranski, H. W. Arz, L. S. Epp, A. Kremp and M. Bálint (2025). Extending monitoring with sediment archive approaches: Comparison of biomonitoring, metabarcoding, and biomarkers to assess past phytoplankton dynamics. Limnol. Oceanogr. Meth. 23: 578–593, doi: 10.1002/lom3.10694
• Schmidt, A., S. Bolius, A. Chagas, J. Romahn, J. Kaiser, H. W. Arz, M. Bálint, A. Kremp and L. S. Epp (2025). Multi-Millennial Genetic Resilience of Baltic Diatom Populations Disturbed in the Past Centuries. Glob. Change Biol. 31: e70467, doi: 10.1111/gcb.70467
• Tomczak, M., J. Kaiser, J. Zhang, M. Voss, Ł. Maciąg, Z. Yang, J. Miluch, W. Huang and H. W. Arz (2025). Global sea level and monsoon effects on terrigenous input and temperature in the north-western South China Sea during the last glacial. Estuar. Coast. Shelf Sci. 320: 109296, doi: 10.1016/j.ecss.2025.109296
• Wegwerth, A., H. W. Arz, J. Kaiser, G. Winckler, L. Lembke-Jene, V. Rigalleau, N. Ruggieri, H. Sadatzki and F. Lamy (2025). South Pacific sea surface temperature and global ocean circulation changes since the late Miocene. Nat. Commun. 16: 6593, doi: 10.1038/s41467-025-62037-w

2024

• Czymzik, M., M. Christl, O. Dellwig, R. Muscheler, D. Müller, J. Kaiser, M. J. Schwab, C. K. M. Nantke, A. Brauer and H. W. Arz (2024). Synchronizing the Western Gotland Basin (Baltic Sea) and Lake Kälksjön (central Sweden) sediment records using common cosmogenic radionuclide production variations. Holocene 34: 1128-1137, doi: 10.1177/09596836241247311
• Czymzik, M., O. Dellwig, R. Muscheler, P. Roeser, A. Brauer, J. Kaiser, M. Christl and H. W. Arz (2024). Retraction “Delayed Western Gotland Basin (Baltic Sea) ventilation in response to the onset of a Mid-Holocene climate oscillation” Quat. Sci. Rev. 345: 109017, doi: 10.1016/j.quascirev.2024.109017
• Hagemann, J. R., F. Lamy, H. W. Arz, L. Lembke-Jene, A. Auderset, N. Harada, S. L. Ho, S. Iwasaki, J. Kaiser, C. B. Lange, M. Murayama, K. Nagashima, N. Nowaczyk, A. Martínez-García and R. Tiedemann (2024). A marine record of Patagonian ice sheet changes over the past 140,000 years. Proc. Nat. Acad. Sci. U.S.A. 121: e2302983121, doi: 10.1073/pnas.2302983121
• Kaiser, J., E. Schefuß, J. Collins, R. Garreaud, J.-B. W. Stuut, N. Ruggieri, R. De Pol-Holz and F. Lamy (2024). Orbital modulation of subtropical versus subantarctic moisture sources in the southeast Pacific mid-latitudes. Nat. Commun. 15: 7512, doi: 10.1038/s41467-024-51985-4
• Kaiser, J., M. Tomczak, O. Dellwig and H. W. Arz (2024). Mediterranean-like “fall dump” events in the Baltic Sea. Holocene 34: 415-419, doi: 10.1177/09596836231219479
• Medwed, C., U. Karsten, J. Romahn, J. Kaiser, O. Dellwig, H. Arz and A. Kremp (2024). Archives of cyanobacterial traits: insights from resurrected Nodularia spumigena from Baltic Sea sediments reveal a shift in temperature optima. ISME Communications 4: ycae140, doi: 10.1093/ismeco/ycae140
• Romahn, J., D. Baranski, A. Schmidt, J. Kaiser, H. Arz, L. S. Epp, A. Kremp and M. Bálint (2024). Glimpse of past dynamics: A new set of phytoplankton primers for sedaDNA. Environ. DNA 6: e577, doi: 10.1002/edn3.577
• Schmidt, A., J. Romahn, E. Andren, A. Kremp, J. Kaiser, H. W. Arz, O. Dellwig, M. Balint and L. S. Epp (2024). Decoding the Baltic Sea’s past and present: A simple molecular index for ecosystem assessment. Ecol. Indic. 166: 112494, doi: 10.1016/j.ecolind.2024.112494

2023

• Kaiser, J., S. Abel, H. W. Arz, A. B. Cundy, O. Dellwig, P. Gaca, G. Gerdts, I. Hajdas, M. Labrenz, J. A. Milton, M. Moros, S. Primpke, S. L. Roberts, N. L. Rose, S. D. Turner, M. Voss and J. A. Ivar do Sul (2023). The East Gotland Basin (Baltic Sea) as a candidate Global Boundary Stratotype Section and Point for the Anthropocene series. Anthr. Rev. 10: 25-48, doi: 10.1177/20530196221132709
• Nwosu, E. C., A. Brauer, M.-E. Monchamp, S. Pinkerneil, A. Bartholomäus, M. Theuerkauf, J.-P. Schmidt, K. R. Stoof-Leichsenring, T. Wietelmann, J. Kaiser, D. Wagner and S. Liebner (2023). Early human impact on lake cyanobacteria revealed by a Holocene record of sedimentary ancient DNA. Commun. Biol. 6: 72, doi: 10.1038/s42003-023-04430-z
• Wittenborn, A. K., T. Bauersachs, C. Hassenrück, K. Käding, J. Wäge-Recchioni, K. Jürgens, H. W. Arz and J. Kaiser (2023). Nitrosopumilus as main source of isoprenoid glycerol dialkyl glycerol tetraether lipids in the central Baltic Sea. Front. Microbiol. 14: 1216130, doi: 10.3389/fmicb.2023.1216130

2022

• Kaiser, J. and M. Lerch (2022). Sedimentary faecal lipids as indicators of Baltic Sea sewage pollution and population growth since 1860 AD. Environ. Res. 204: 112305, doi: 10.1016/j.envres.2021.112305
• Williams, M., R. Leinfelder, A. D. Barnosky, M. J. Head, F. M. G. McCarthy, A. Cearreta, S. Himson, R. Holmes, C. N. Waters, J. Zalasiewicz, S. Turner, M. McGann, E. A. Hadly, M. A. Stegner, P. M. Pilkington, J. Kaiser, J. C. Berrio, I. P. Wilkinson, J. Zinke and K. L. Delong (2022). Planetary-scale change to the biosphere signalled by global species translocations can be used to identify the Anthropocene. Palaeontology 65: e12618, doi: 10.1111/pala.12618
• Wittenborn, A. K., H. Radtke, C. Dutheil, H. W. Arz and J. Kaiser (2022). A downcore calibration of the TEX₈₆^L temperature proxy for the Baltic Sea. Cont. Shelf Res. 251: 104875, doi: 10.1016/j.csr.2022.104875

2021

• Nwosu, E. C., A. Brauer, J. Kaiser, F. Horn, D. Wagner and S. Liebner (2021). Evaluating sedimentary DNA for tracing changes in cyanobacteria dynamics from sediments spanning the last 350 years of Lake Tiefer See, NE Germany. J. Paleolimnol. 66: 279-296, doi: 10.1007/s10933-021-00206-9

2020

• Balci, N., Y. Gunes, J. Kaiser, S. A. On, K. Eris, B. Garczynski and B. H. N. Horgan (2020). Biotic and abiotic imprints on Mg-rich stromatolites: Lessons from Lake Salda, SW Turkey. Geomicrobiol. J. 37: 401-425, doi: 10.1080/01490451.2019.1710784
• Kahru, M., R. Elmgren, J. Kaiser, N. Wasmund and O. Savchuk (2020). Cyanobacterial blooms in the Baltic Sea: Correlations with environmental factors. Harmful Algae 92: 101739, doi: 10.1016/j.hal.2019.101739
• Kaiser, J., N. Wasmund, M. Kahru, A. K. Wittenborn, R. Hansen, K. Häusler, M. Moros, D. Schulz-Bull and H. W. Arz (2020). Reconstructing N2-fixing cyanobacterial blooms in the Baltic Sea beyond observations using 6- and 7-methylheptadecane in sediments as specific biomarkers. Biogeosciences 17: 2579-2591, doi: 10.5194/bg-17-2579-2020
• Wegwerth, A., J. Kaiser, O. Dellwig and H. W. Arz (2020). Impact of Eurasian Ice Sheet and North Atlantic climate dynamics on Black Sea temperature variability during the Penultimate Glacial (MIS 6, 130–184 ka BP). Paleoceanogr. Paleoclimatology 35: e2020PA003882, doi: 10.1029/2020pa003882

2019

• Collins, J. A., F. Lamy, J. Kaiser, N. Ruggieri, S. Henkel, R. De Pol-Holz, R. Garreaud and H. W. Arz (2019). Centennial-Scale SE Pacific sea surface temperature variability over the 2,300 years. Paleoceanogr. Paleoclimatology 34: 336-352, doi: 10.1029/2018pa003465
• Kaiser, J., K. J. Wang, D. Rott, G. Li, Y. Zheng, L. Amaral-Zettler, H. W. Arz and Y. Huang (2019). Changes in long chain alkenone distributions and Isochrysidales groups along the Baltic Sea salinity gradient. Org. Geochem. 127: 92-103, doi: 10.1016/j.orggeochem.2018.11.012

2018

• Haddam, N. A., G. Siani, E. Michel, J. Kaiser, F. Lamy, S. Duchamp-Alphonse, J. Hefter, P. Braconnot, F. Dewilde, G. Isgüder, N. Tisnerat-Laborde, F. Thil, N. Durand and C. Kissel (2018). Changes in latitudinal sea surface temperature gradients along the Southern Chilean margin since the last glacial. Quat. Sci. Rev. 194: 62-76, doi: 10.1016/j.quascirev.2018.06.023
• Jokinen, S. A., J. J. Virtasalo, T. Jilbert, J. Kaiser, O. Dellwig, H. W. Arz, J. Hänninen, L. Arppe, M. Collander and T. Saarinen (2018). A 1500-year multiproxy record of coastal hypoxia from the northern Baltic Sea indicates unprecedented deoxygenation over the 20th century. Biogeosciences 15: 3975-4001, doi: 10.5194/bg-15-3975-2018
• Kaiser, J., M. Moros, M. Tomczak, O. Dellwig, D. Schulz-Bull and H. W. Arz (2018). The invasive diatom Pseudosolenia calcar-avis and specific C25 isoprenoid lipids as a sedimentary time marker in the Black Sea. Geology 46: 507-510, doi: 10.1130/g40294.1
• Wegwerth, A., S. Eckert, O. Dellwig, B. Schnetger, S. Severmann, S. Weyer, A. Brüske, J. Kaiser, J. Köster, H. W. Arz and H.-J. Brumsack (2018). Redox evolution during Eemian and Holocene sapropel formation in the Black Sea. Palaeogeogr., Palaeoclimatol., Palaeoecol. 489: 249-260, doi: 10.1016/j.palaeo.2017.10.014

2017

• Kaiser, J., M. T. J. v. d. Meer and H. W. Arz (2017). Long-chain alkenones in Baltic Sea surface sediments: new insights. Org. Geochem. 112: 93-104, doi: 10.1016/j.orggeochem.2017.07.002
• Leduc, G., T. de Garidel-Thoron, J. Kaiser, C. Bolton and C. Contoux (2017). Databases for sea surface paleotemperature based on geochemical proxies from marine sediments: Implications for model-data comparisons. Quaternaire 28: 201-216, doi: 10.4000/quaternaire.8034

2016

• Kaiser, J. and H. W. Arz (2016). Sources of sedimentary biomarkers and proxies with potential paleoenvironmental significance for the Baltic Sea. Cont. Shelf Res. 122: 102-119, doi: 10.1016/j.csr.2016.03.020
• Kaiser, J., B. Ön, H. W. Arz and S. Akçer-Ön (2016). Sedimentary lipid biomarkers in the magnesium rich and highly alkaline Lake Salda (south-western Anatolia). Journal of Limnology 75: 581-596, doi: 10.4081/jlimnol.2016.1337
• Kaiser, J., S. T. Belt, M. Tomczak, T. A. Brown, N. Wasmund and H. W. Arz (2016). C25 highly branched isoprenoid alkenes in the Baltic Sea produced by the marine planktonic diatom Pseudosolenia calcar-avis. Org. Geochem. 93: 51-58, doi: 10.1016/j.orggeochem.2016.01.002
• Wegwerth, A., J. Kaiser, O. Dellwig, L. S. Shumilovskikh, N. R. Nowaczyk and H. W. Arz (2016). Northern hemisphere climate control on the environmental dynamics in the glacial Black Sea “Lake”. Quat. Sci. Rev. 135: 41-53, doi: 10.1016/j.quascirev.2016.01.016

2015

• Arz, H. W., J. Kaiser and D. Fleitmann (2015). Paleoceanographic and paleoclimatic changes around 2200 BC recorded in sediment cores from the northern Red Sea. In: 2200 BC - Ein Klimasturz als Ursache für den Zerfall der alten Welt? = 2200 BC - A climatic breakdown as a cause for the collapse of the old word? : 7. Mitteldeutscher Archäologentag vom 23. bis 26. Oktober 2014 in Halle (Saale). Ed. by H. Meller, H. W. Arz, R. Jung and R. Risch. Halle (Saale): Landesamt für Denkmalpflege und Archäologie Sachsen-Anhalt, Landesmuseum für Vorgeschichte Halle (Saale) (Tagungen des Landesmuseums für Vorgeschichte Halle ; 12): 53-60
• Kaiser, J., S. Schouten, R. Kilian, H. W. Arz, F. Lamy and J. S. Sinninghe Damsté (2015). Isoprenoid and branched GDGT-based proxies for surface sediments from marine, fjord and lake environments in Chile. Org. Geochem. 89-90: 117-127, doi: 10.1016/j.orggeochem.2015.10.007
• Lamy, F., H. W. Arz, R. Kilian, C. B. Lange, L. Lembke-Jene, M. Wengler, J. Kaiser, O. Baeza-Urrea, I. R. Hall, N. Harada and R. Tiedemann (2015). Glacial reduction and millennial-scale variations in Drake Passage throughflow. Proc. Nat. Acad. Sci. U.S.A. 112: 13496-13501, doi: 10.1073/pnas.1509203112
• Lamy, F., M. Prange, H. W. Arz, V. Varma, J. Kaiser, R. Kilian, J. Hefter, A. Benthien and G. Mollenhauer (2015). The southern westerlies during the Holocene: paleoenvironmental reconstructions from Chilean lake, fjord, and ocean margin sediments combined with climate modeling. In: Integrated Analysis of Interglacial Climate Dynamics (INTERDYNAMIC). Ed. by M. Schulz and A. Paul. Cham: Springer International Publishing (SpringerBriefs in Earth System Sciences): 75-81, doi: 10.1007/978-3-319-00693-2_13
• Wegwerth, A., A. Ganopolski, G. Ménot, J. Kaiser, O. Dellwig, E. Bard, F. Lamy and H. W. Arz (2015). Black Sea temperature response to glacial millennial-scale climate variability. Geophys. Res. Lett. 42: 8147-8154, doi: 10.1002/2015GL065499

2014

• Caniupán, M., F. Lamy, C. B. Lange, J. Kaiser, R. Kilian, H. W. Arz, T. León, G. Mollenhauer, S. Sandoval, R. De Pol-Holz, S. Pantoja, J. Wellner and R. Tiedemann (2014). Holocene sea-surface temperature variability in the Chilean fjord region. Quat. res. 82: 342-353, doi:10.1016/j.yqres.2014.07.009
• Kaiser, J., N. Ruggieri, J. Hefter, H. Siegel, G. Mollenhauer, H. W. Arz and F. Lamy (2014). Lipid biomarkers in surface sediments from the Gulf of Genoa, Ligurian sea (NW Mediterranean sea) and their potential for the reconstruction of palaeo-environments. Deep-sea res. Pt. 1. 89: 68-83, doi:10.1016/j.dsr.2014.04.009
• Wegwerth, A., O. Dellwig, J. Kaiser, G. Ménot, E. Bard, L. Shumilovskikh, B. Schnetger, I. C. Kleinhanns, M. Wille and H. W. Arz (2014). Meltwater events and the Mediterranean reconnection at the Saalian-Eemian transition in the Black Sea. Earth planet. sci. lett. 404: 124-135, doi:10.1016/j.epsl.2014.07.030

2013

• Saccon, P., A. Leis, A. Marca, J. Kaiser, L. Campisi, J. Savarino, M. E. Böttcher, A. Eisenhauer, J. Sültenfuss and J. Erbland (2013). Assessment of potential nitrate pollution sources in the Marano Lagoon (Italy) and its catchment area using a multi isotope approach. In: Isotopes in hydrology, marine ecosystems and climate change studies : Proceedings of the International Symposium held in Monaco, 27 March - 1 April 2011. Vienna: International Atomic Energy Agency: 473-481, 978-92-0-135610-9
• Saccon, P., A. Leis, A. Marca, J. Kaiser, L. Campisi, M. E. Böttcher, J. Savarino, P. Escher, A. Eisenhauer and J. Erbland (2013). Determination of nitrate pollution sources in the Marano Lagoon (Italy) by using a combined approach of hydrochemical and isotopic techniques : Water Rock Interaction [WRI 14]. Procedia earth planetary sci. 7: 758-761, doi:10.1016/j.proeps.2013.03.019
• Saccon, P., A. Leis, A. Marca, J. Kaiser, L. Campisi, M. E. Böttcher, J. Savarino, P. Escher, A. Eisenhauer and J. Erbland (2013). Multi-isotope approach for the identification and characterisation of nitrate pollution sources in the Marano lagoon (Italy) and parts of its catchment area. Appl. geochem. 34: 75-89, doi:10.1016/j.apgeochem.2013.02.007

2012

• Saccon, P., A. Leis, A. Marca, J. Kaiser, L. Campisi, J. Savarino, M. E. Böttcher, P. Escher, A. Eisenhauer, J. Sültenfuß and J. Erbland (2012). Individuazione e caratterizzazione delle potenziali fonti dei nitrati nella Laguna di Marano e messa a punto di un piano di monitoraggio ambientale: Progetto FONIMAR, Parte II. Boll. Soc. Naturalisti Silvia Zenari 35: 43-79

2011

• Caniupán, M., F. Lamy, C. B. Lange, J. Kaiser, H. Arz, R. Kilian, O. Baeza Urrea, C. Aracena, D. Hebbeln, C. Kissel, C. Laj, G. Mollenhauer and R. Tiedemann (2011). Millennial-scale sea surface temperature and Patagonian ice sheet changes off southernmost Chile (53°S) over the past ~60 kyr. Paleoceanography 26: PA3221, doi:10.1029/2010pa002049

2010

• Lamy, F., R. Kilian, H. W. Arz, J.-P. Francois, J. Kaiser, M. Prange and T. Steinke (2010). Holocene changes in the position and intensity of the southern westerly wind belt. Nat. geosci. 3: 695-699, doi:10.1038/ngeo959