Articles | Volume 20, issue 9
https://doi.org/10.5194/bg-20-1691-2023
https://doi.org/10.5194/bg-20-1691-2023
Research article
 | 
04 May 2023
Research article |  | 04 May 2023

Diatom responses and geochemical feedbacks to environmental changes at Lake Rauchuagytgyn (Far East Russian Arctic)

Boris K. Biskaborn, Amy Forster, Gregor Pfalz, Lyudmila A. Pestryakova, Kathleen Stoof-Leichsenring, Jens Strauss, Tim Kröger, and Ulrike Herzschuh

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Cited articles

Anderson, P. M. and Lozhkin, A. V.: Late Quaternary vegetation of Chukotka (Northeast Russia), implications for Glacial and Holocene environments of Beringia, Quaternary Sci. Rev., 107, 112–128, https://doi.org/10.1016/j.quascirev.2014.10.016, 2015. 
Andreev, A. A., Morozova, E., Fedorov, G., Schirrmeister, L., Bobrov, A. A., Kienast, F., and Schwamborn, G.: Vegetation history of central Chukotka deduced from permafrost paleoenvironmental records of the El'gygytgyn Impact Crater, Clim. Past, 8, 1287–1300, https://doi.org/10.5194/cp-8-1287-2012, 2012. 
Andreev, A. A., Raschke, E., Biskaborn, B. K., Vyse, S. A., Courtin, J., Böhmer, T., Stoof-Leichsenring, K., Kruse, S., Pestryakova, L. A., and Herzschuh, U.: Late Pleistocene to Holocene vegetation and climate changes in northwestern Chukotka (Far East Russia) deduced from lakes Ilirney and Rauchuagytgyn pollen records, Boreas, 50, 652–670, https://doi.org/10.1111/bor.12521, 2021. 
Anthony, K. M. W., Zimov, S. A., Grosse, G., Jones, M. C., Anthony, P. M., Iii, F. S. C., Finlay, J. C., Mack, M. C., Davydov, S., Frenzel, P., and Frolking, S.: A shift of thermokarst lakes from carbon sources to sinks during the Holocene epoch, Nature, 511, 452–456, https://doi.org/10.1038/nature13560, 2014 
Appleby, P. G.: Chronostratigraphic Techniques in Recent Sediments, in: Tracking Environmental Change Using Lake Sediments: Basin Analysis, Coring, and Chronological Techniques, edited by: Last, W. M. and Smol, J. P., Springer Netherlands, Dordrecht, 171–203, https://doi.org/10.1007/0-306-47669-X_9, 2001. 
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Short summary
Lake sediment from the Russian Arctic was studied for microalgae and organic matter chemistry dated back to the last glacial 28 000 years. Species and chemistry responded to environmental changes such as the Younger Dryas cold event and the Holocene thermal maximum. Organic carbon accumulation correlated with rates of microalgae deposition only during warm episodes but not during the cold glacial.
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