| Tél. : +33 (0)4 79 75 88 63
Mail :jean-christophe.clement@univ-savoie.fr |
Research focus | Mountain ecosystems (grasslands, wetlands, forests, rivers and lakes) create a functional framework with an important biodiversity and key ecosystem functions (photosynthesis, decomposition, mineralization, denitrification, methanogenesis…). As a result, these ecosystems and their functioning provide essential services or benefits to people (water resources, support to agriculture and wood production, carbon storage, iconic value, tourism…), but they are increasingly threatened by global changes (drought, snowpack reduction, atmospheric deposition, land-use change, pollutions…). As such, many research questions arise : How wetlands maintain water quality? How can we better restore them when damaged? How the biodiversity and productivity of subalpine grasslands resist to climate change, and may even help to mitigate it? How plants, soil microorganisms, and their feedback interactions participate, through their composition and functions, to these ecosystem responses ? What is the impact of abiotic conditions (parent material, soil, hydrology, snow pack dynamic…) and agricultural practices (intensive, extensive, organic…) on these relationships and ecosystem functioning ?
Through the study of biogeochemical interactions and cycling (pools and fluxes of N, C, P, water…) in the “atmosphere-plant-soil-microorganisms-soil-water” continuum, and using observational and experimental approaches, my research work aims at understanding the mechanisms responsible for the resistance and recovery of the structure and function of these mountain ecosystems when facing natural and anthropogenic influences. My research can be directed towards applications (restoration, survey, water quality, support to protect and manage ecosystems,…), as well as towards theoretical, conceptual or methodological work (functional plant and microbial diversity and traits, ecological interactions and multifunctionality, resource use strategies, ecosystem vulnerability and resilience, feedback loops, stoichiometry, isotopes,…)
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Carreer | 2016-… - Full Pr. with Habilitation
Univ. Savoie Mont Blanc - Centre Alpin de Recherche sur les Réseaux Trophiques des Écosystèmes Limniques (CARRTEL) – Le Bourget du Lac, France 2014-16 - Associate Pr. with Habilitation
Univ. Grenoble Alpes, Lab. d’Écologie Alpine (LECA), Grenoble, France 2012-14 - Full time Researcher for the CNRS
Lab. d’Écologie Alpine (LECA), Grenoble, France 2005-11 - Assistant Pr.
Univ. Joseph Fourier, Lab. d’Écologie Alpine (LECA), Grenoble, France 2004-05 - Visiting Assistant Pr.
West Virginia Univ., West Virginia, USA 2001-04 - Research Associate
Rutgers Univ. & Princeton Univ., New Jersey, USA 1998-2001 – Ph.D. Student
Univ. Rennes 1, Rennes, France
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Training | 2012 - Habilitation à Diriger des Recherches (HDR)
Grenoble Université Alpes, Grenoble, France 2001 – Ph.D. in Biology – Université de Rennes 1, Rennes, France. 1998 – Master in Environmental Sciences – Univ. Orléans/INAP-G, Orléans-Paris, France
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Supervised theses | Clara Garyga (funds: CIFRE)
Sujet : Contribution des zones de marnage au fonctionnement biogéochimique des retenues hydrauliques.
Dec. 2023 / Dec. 2026. (Co-dir : Dr. I. Bourgeois-CARRTEL & J. VIDAL HURTADO-EDF). Maria Page – Projet ISOLAKE (funds:ANR/USMB)
Sujet : Caractérisation des cycles de l'azote et du phosphore dans les lacs alpins par les isotopes stables.
Oct. 2023 / Dec. 2026. (Co-directeur : Dr. I. Bourgeois-CARRTEL). Nicolas Bonfanti - Projet TransAlp (funds ANR/USMB)
Sujet : Effets du réchauffement sur les émissions de gaz à effet de serre et les stocks de C et de nutriments dans les sols alpins.
Oct. 2022 /Dec. 2025. (Co-directeur : Pr. J. Poulenard-EDYTEM). Alice Lemoinne (funds: MESR/USMB)
Sujet : Réponses des communautés planctoniques et du fonctionnement des écosystèmes lacustres aux forçages environnementaux
Oct. 2022 /Aout. 2024 (Arrêt pour raison médicale). (Co-dir.: Dr. S. Rasconi-CARRTEL). Mathias Adam (funds:CIFRE)
Titre : Assemblage d’espèces et hydropériode : quelles relations pour une meilleure maitrise des projets de restauration de zones humides ?
Nov. 2021 /Dec. 2024. (co-directrices : Dr. S. Gaucherand-LESSEM & Dr. C. Poinsot-BIOTOPE) Baptiste Boggio – CROZO Project (funds: UMSB and OFB)
Title : Reeds marshes contribution to lake stoichiometry.
Oct. 2019/ Dec. 2022. (Co-supervisor : Dr. F. Arthaud) Gabin Piton – ECOSERVE Project (funds : ANR Biodiversa).
Title : Grasslands Resilience to climatic stress and land-use intensity : an approach based on the microbial functional traits’ framework.
Nov. 2016 / Dec. 2019. (Co-supervisor : Dr. A. Foulquier) Ilann Bourgeois - DEPONIT project (funds : DiPEE, OSUG, LECA).
Title : Atmospheric nitrate deposition in subalpine grasslands
Oct. 2014 /Dec. 2017. (Co-supervisor : Dr. J. Savarino). Lionel Bernard - REGARDS project (funds : ANR – Biodiversa).
Title : Functional mechanisms behind the resilience of subalpine grasslands facing global changes.
Dec. 2012 /May 2017. (Co-supervisor : Dr. S. Lavorel). Nicolas Legay - VITAL project (funds : EU-EraNet – Biodiversa).
Title : Relationships between plant functional diversity soil microbial community and nitrogen cycling in subalpine grasslands.
Sept. 2009 /May 2013. (Co-supervisor : Dr. S. Lavorel).
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Recent lectures given | Clément J.C. Poulenard J., Arthaud F., Cauvy-Fraunié S., Fischer M., Costes G., Huss M. & J.B. Bosson. Glaciers and postglacial ecosystems : common goods to protect in the Anthropocene. 7th European Congress of Conservation Biology. Bologna, Italy , 17 -21 June 2024. Bourgeois I., Clément J.C., Bernard L., Caillon N., Lepesant L., Pommier T., Dentant C. & Savarino J. Unlocking the nitrogen cycle in glacial forelands: an isotopic perspective. EGU, Vienna, Austria, 12-16 avril 2024. Bektas B., Saillard A., Rutten G., Chabroux U., Piton G., Arnoldi C., Salze P., Cécillion L., Khedim N., Poulenard J., Foulquier A., Clément J.C., Valay J.C., Pommier T., Thuiller W. & T. Münkemüller. Plants and soil: The faster life of alpine grasslands under experimental warming . World Biodiversity Forum. Davos, Switzerland, June 26 - July 1 2022. Clément JC, Bourgeois I., Voisin D. & J. Savarino. Subalpine grass species are directly fertilized by atmospheric nitrate. AGU 2019, San Francisco, USA. 9-13 December 2019. Clément J.C., Bourgeois I., Nesti C., Caillon N., Deschamps N., Voisin D. & J. Savarino. Subalpine grass species are directly fertilized by atmospheric nitrate. Sfécologie-2018, International Conference of Ecological Sciences, Rennes, FR. 22-25 octobre 2018.
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Recent publications | Mathias A., Cooper D.J, Jaunatre R., Clément J.C. & S. Gaucherand. 2024. Wetland restoration: Can short-term success criteria predict long-term outcomes? Restoration Ecology. https://doi: 10.1111/rec.14231 Bosson J.B., Huss M., Cauvy-Fraunié S., Clément J.C., Costes G., Fischer M., Poulenard J. & F. Arthaud. 2023. Future emergence of novel ecosystems caused by glacial retreat. Nature. https://doi.org/10.1038/s41586-023-06302-2 Piton G., Foulquier A., Martinez Garcia L., Legay N., Arnoldi C., Brussaard L., Hedlund K., Martins da Silva P., Nascimento E., Reis, F., Sousa P., Clément J.C. & G. De Deyn. 2021. Resistance-recovery tradeoff of soil microbial communities under altered rain regimes : An experimental test across European agroecosystems. Journal of Applied Ecology. https://doi.org/10.1111/1365-2664.13774 Legay N., Grassein F., Arnoldi C., Segura R., Laîné P., Lavorel S.& J.C. Clément J.C. 2020. Studies of NH4+ and NO3- uptake ability of subalpine plants and resource-use strategy identified by their functional traits. Oikos. doi: 10.1111/oik.07282 Bernard L., Decau M.L., Morvan-Bertrand, Lavorel S. & J.C. Clément. 2020. Water-Soluble Carbohydrates in Patzkea paniculata (L.): a plant strategy to tolerate snow pack reduction and spring drought in subalpine grasslands. Plant Biology.doi: 10.1111/plb.13081 Bourgeois I., Clément J.C., Caillon N. & J. Savarino. 2019. Foliar uptake of atmospheric nitrate by two dominant subalpine plants: insights from in situ triple-isotope analysis. The New Phytologist. 223:1784-1794. DOI:10.1111/nph.15761. Datry T., Foulquier A., Corti R., von Schiller D., Tockner K., Mendoza-Lera C., Clément J.C. et al. 2018. A global analysis of terrestrial plant litter dynamics in non-perennial waterways. Nature Geoscience. 11: 493-503. https://doi.org/10.1038/s41561-018-0134-4 Mayor J.R., Sanders N.J., Classen A.T., Bardgett R.D., Clément J.C., Fajardo A., Lavorel S., Sundqvist M.K., Bahn M., Chisholm C., Cieraad E., Gedalof Z., Grigulis K. , Kudo G., Oberski D.L. & D.A. Wardle. 2017. Elevation alters ecosystem properties across temperate treelines globally. Nature. 542: 91-95. doi:10.1038/nature21027 |
Editorship | Reviewer for : Nature Biogeoscience, J. Applied Ecology, J. Ecology, Global Change Biology, ANR, NSF, NERC, INSU "Océan-Atmosphère", ESF…
Editorial Board Member for Environmental Management
Co-organisation de la Conférence ECOVEG 11 à Grenoble en 2015
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Membership | Conseil Scientifique de l’Agence de l’Eau Rhône-Méditerranée-Corse Société Française d’Ecologie et d’Evolution Membre du réseau WinterNet - http://winternet.sites.sheffield.ac.uk./ |
web page | Orcid : orcid.org/0000-0002-0841-7199 ResearchGate : https://www.researchgate.net/profile/Jean-Christophe_Clement Google Scholar : http://scholar.google.fr/citations?user=zw77droAAAAJ Profil ResearcherID |
