Personal profile
Curriculum vitae
| Name | Jérémy Courtin |
| Contact | [email protected] - phone: 91 333 436 |
| Date of Birth | 13/10/1994 |
| Nationality | French |
Profile
I am an enthusiastic researcher with a passion for Arctic environments, specializing in conservation ecology, paleoecology, and genetics. My recent work focuses on using cutting-edge molecular techniques, particularly ancient sedimentary DNA analysis, to reconstruct past biodiversity changes in Arctic ecosystems, bridging the gap between past and present ecological dynamics.
Education |
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15/01/2019 – 18/04/2023 |
PhD in Genetics – Faculty of Science, University of Potsdam, Germany Title: Biodiversity changes in Siberia between Quaternary glacial and interglacial stages - Exploring the potential of sedaDNA Supervisors: Prof. Dr. Herzschuh Ulrike; Dr. Stoof-Leichsenring Kathleen |
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10/09/2016 – 26/09/2018 |
Master’s in behavioral Ecology, Evolution & Biodiversity – University of Tours, France |
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09/09/2013 – 31/05/2016 |
Bachelor’s in Integrative and Evolutive Biology – University of Tours, France |
Research Experience | |
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01/11/2023 – 01/11/2025 |
Post-doctoral project: As part of the Inge Lehmann grant awarded to Dr. H. Zimmermann, I am currently working on the "Functional Ecosystem Changes in the Marine Arctic: Unraveling Climate-Biota Interactions by Hybridization Capture of Sedimentary Ancient DNA" (FunCap) project. I investigate climate-biota interactions using hybridization capture of sedimentary ancient DNA (sedaDNA). Employed at the Geological Survey of Denmark and Greenland (GEUS) in Copenhagen, I am developing a set of probes to capture key marine eukaryotes. These baits are first being tested on modern samples to assess their efficiency and will later be applied to ancient sediment from the Holocene in Baffin Bay (West Greenland). To enhance current species assignment methods and phylogenetic analyses, I will conduct a research visit with Rasmus Nielsen's group at UC Berkeley. Keywords: Paleoecology; Holocene; High latitude systems; marine ecosystems; Greenland; sedimentary ancient DNA; hybridisation target capture; Bioinformatics (e.g. chiime2, gargammel) |
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15/01/2019 – 18/04/2023 |
PhD project: As part of the ERC Glacial Legacy grant awarded to Prof. U. Herzschuh at the Alfred Wegener Institute (AWI) in Germany, I reconstructed ancient ecosystems using sedaDNA and highlighted plant diversity loss alongside megafaunal extinction and the collapse of the Pleistocene steppe-tundra due to reduced biotic resilience. I explored the potential of sedaDNA to complement or replace traditional methods, such as macrofossil and pollen analysis, to study past ecological changes in response to climate change. Keywords: Paleoecology; Pleistocene; Holocene; High latitude systems; Siberia, sedimentary ancient DNA; Arctic expedition; metabarcoding; metagenomics; vegetation change; extinction; Bioinformatics (e.g. OBITools, kraken2) |
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08/01/2018 – 06/07/2018 |
Master project: As part of the EU’s Horizon 2020-funded project Virus-X, I worked at Matís in Iceland to investigate the genetic diversity of bacteriophages in thermophilic microbial communities from Icelandic hot springs. Through metagenomic sequencing, I identified a potentially novel phage. I also explored microbial diversity using 16S rRNA metabarcoding and reported the isolation of a new Thermus igniterrae strain, finding that pH and temperature had no direct effect on microbial diversity in the samples investigated. Keywords: Biotechnology; Microbiology; Molecular Biology; DNA extraction; PCR amplification; Field work; DNA Sequencing – full genome & metabarcoding (SANGER; MiSeq); statistical analyses |
Field work |
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03/2019 – 04/2019 |
Participation in the expedition “Expeditions to Siberia 2019 – Batagay outcrop sampling”, Siberia, Russia |
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Supervision & teaching experiences | |
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10/2021 – 07/2022 |
M Sc. Iris Eder “Sedimentary ancient DNA records from the Batagay Megaslump, East Siberia – Vegetation reconstruction over the last ~650,000 years” |
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2019 – 2022 |
Master course “Terrestrial Palaeoecology”, University of Potsdam – AWI |
Programme Area
- Programme Area 5: Nature and Climate
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Collaborations and top research areas from the last five years
Projects
- 1 Finished
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Arctic-boreal bryophyte dynamics since the last glacial inferred from ancient DNA metabarcoding
Herzschuh, U., Liu, Y., Liu, S., Stoof-Leichsenring, K. R., Porada, P., Courtin, J., Farkas, L. Z., Böhmer, T., Biskaborn, B. K., Diekmann, B., Huang, Y., Kaufman, D., Melles, M., Meyer, H., Pestryakova, L. A., Russell, J. M. & Wagner, B., Oct 2025, In: Journal of Biogeography. 52, 10, 16 p., e70015.Research output: Contribution to journal › Article › Research › peer-review
Open Access -
Plant interactions associated with a directional shift in the richness range size relationship during the Glacial-Holocene transition in the Arctic
Liu, Y., Lisovski, S., Courtin, J., Stoof-Leichsenring, K. R. & Herzschuh, U., Dec 2025, In: Nature Communications. 16, 1, 1128.Research output: Contribution to journal › Article › Research › peer-review
Open Access3 Citations (Scopus) -
Potential plant extinctions with the loss of the Pleistocene mammoth steppe
Courtin, J., Stoof-Leichsenring, K. R., Lisovski, S., Liu, Y., Alsos, I. G., Biskaborn, B. K., Diekmann, B., Melles, M., Wagner, B., Pestryakova, L., Russell, J., Huang, Y. & Herzschuh, U., 14 Jan 2025, In: Nature Communications. 16, 1, 16 p., 645.Research output: Contribution to journal › Article › Research › peer-review
Open Access7 Citations (Scopus) -
Tracing climate-driven shifts in Arctic microbial eukaryotes over the past ~900,000 years using sedimentary ancient DNA
Expedition 400 Scientists, 19 Nov 2025, (Submitted).Research output: Contribution to conference › Abstract at conference
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Landforms and degradation pattern of the Batagay thaw slump, Northeastern Siberia
Kizyakov, A. I., Wetterich, S., Günther, F., Opel, T., Jongejans, L. L., Courtin, J., Meyer, H., Shepelev, A. G., Syromyatnikov, I. I., Fedorov, A. N., Zimin, M. V. & Grosse, G., 1 Jan 2023, In: Geomorphology. 420, 108501.Research output: Contribution to journal › Article › Research › peer-review
34 Citations (Scopus)