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Dernière mise à jour : Mai 2018

Menu Logo Principal Logo partenaire logo CARRTEL

Alpine Center for research on trophic networks and limnic ecosystems

UMR CARRTEL

Centre Alpin sur les Réseaux Trophiques et Ecosystèmes Lacustre

Clément Jean-Christophe

Clément Jean-Christophe
© JC-Clement
Full Professor, Savoie Mont-Blanc University

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…). As a result, these ecosystems provide essential services or benefits to people (water resources, support to agriculture and wood production, carbon storage, iconic value, tourism…), but they are threatened by global changes (drought, snowpack reduction, atmospheric deposition, land-use change, pollutions…).

In this context many research questions arise : How wetlands maintain water quality; How the biodiversity and productivity of subalpine grasslands resist to climate change? How plants, soil microorganisms, and their 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 these biogeochemical interactions and cycling (polls and fluxes of N, C, water…) in the “atmosphere-plant-soil-microorganisms-soil-water”, 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.

Carreer

2016-… - Full Pr. with Habilitation

Univ. Savoie Mont Blanc - Centre Alpin de Recherche sur les Réseaux Trophiques des Ecosystèmes Limniques (CARRTEL) – Le Bourget du Lac, France

 

2014-16 - Associate Pr. with Habilitation

Univ. Grenoble Alpes, Lab. d’Ecologie Alpine (LECA), Grenoble, France

 

2012-14 - Full time Researcher for the CNRS

Lab. d’Ecologie Alpine (LECA), Grenoble, France

 

2005-11 - Assistant Pr.

Univ. Joseph Fourier, Lab. d’Ecologie Alpine (LECA), Grenoble, France

 

2004-05 - Visiting Assistant Professor

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

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

 

Supervised theses

Baptiste Boggio (Ph.D. student CARRTEL) – CROZO Project (fundings: UMSB)

Title : Reeds marshes contribution to lake stoichiometry.

Start: Oct. 2019/End: Dec. 2022. (Co-supervisor : F. Arthaud)

 

Gabin Piton (Ph.D. student LECA) –ECOSERVE project (fundings : ANR Biodiversa, LECA, UGA).

Title : Grasslands Resilience to climatic stress and land-use intensity : an approach based on the microbial functional traits’ framework.

Start : Nov. 2016 /End : Dec. 2019. (Co-supervisor : A. Foulquier-LECA)

 

Ilann Bourgeois (Ph.D. student LECA/IGE) - DEPONIT project (fundings : DiPEE, OSUG, LECA).

Title : Atmospheric nitrate deposition in subalpine grasslands

Start : Oct. 2014 /End : Dec. 2017. (Co-supervisor : J. Savarino - IGE).

 

Lionel Bernard (Ph.D. Student, LECA) - REGARDS project (fundings : ANR – Biodiversa).

Title : Functional mechanisms behind the resilience of subalpine grasslands facing global changes.

Start : Dec. 2012 /Start : May 2017. (Co-supervisor : S. Lavorel).

 

Nicolas Legay (Ph.D. Student, LECA) - VITAL project (fundings : EU-EraNet – Biodiversa).

Title : Relationships between plant functional diversity soil microbial community and nitrogen cycling in subalpine grasslands.

Start : Sept. 2009 / End : May 2013. (Co-supervisor HDR : S. Lavorel).

Recent lectures given  

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.

  

Piton G., JC Clément & A.Foulquier. Understanding grassland response to land use intensity and climate change: moving forward microbial trait based approach. International Mountain Conference, Innsbruck, AU. 8–12 September 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.

 

Bourgeois I., J. Savarino & Clement J.C. Response of subalpine watershed to atmospheric NO3- deposits using D17O. Goldschmidt 2017. Paris, FR. 13- -18 Aug. 2017.

 

 Gayet G., Baptist F., Caessteker P., Clément J.C., Fossey M., Gaucherand S., Isselin-Nondedeu F., Jabiol B., Le Bouteiller C. & Mesléard F. L’intégration du dimensionnement des mesures de compensation dans la méthode nationale d’évaluation des fonctions des zones humides. Colloque “Valeurs et Usage des Zones Humides”, CBN, Bailleul, FR, 26-30 Sept. 2017.

Recent publications

Piton G., Foulquier A., Martínez-García Martinez L.B., Legay N., Hedlund K., Martins da Silva P., Nascimento E., Reis F., Sousa P., De Deyn G.B. & J.C. Clement. 2020. Disentangling drivers of soil microbial potential enzyme activity across rain regimes: An approach based on the functional trait framework. Soil Biology and Biochemistry.107881. https://doi.org/10.1016/j.soilbio.2020.107881

 

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. 22 (3): 441-449. 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  – Commentary paper by F. Soper in the same issue. Prix Jeune Chercheur 2019 de la SFE². Prix de l’Académie des Sciences 2019.

 

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

 

Legay N., Piton G., Arnoldi C., Bernard L., Binet M.N., Mouhamadou B., Pommier T., Lavorel S., Foulquier A. & J.C. Clément. 2018. Soil legacy effects of climatic stress, management and plant functional composition on microbial communities influence the response of Lolium perenne to a new drought event. Plant & Soil. 424:233-254. DOI 10.1007/s11104-017-3403-x.

 

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

Membership

Conseil Scientifique de l’Agence de l’Eau Rhône-Méditerranée-Corse

Société Française d’Ecologie

Additional activities

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

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