Sélectionnez votre langue

  • Post-doctorante – FRB-CESAB

    Cassie Speakman

     

    Postdoc for the DISCAR Synthesis Project.

     

    Research projects:DISCAR Synthesis Project – Olivier Gimenez (CEFE, CNRS) & Sandrine Ruette (OFB).

     

    Contact information

    Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.
    https://www.fondationbiodiversite.fr/membre/cassie-speakman/

    Orcid: https://orcid.org/0000-0002-0023-518X
    Bluesky: https://bsky.app/profile/cassiespeakman.bsky.social
    Github: https://cassiespeakman.github.io/
    Cesab, Institut Bouisson Bertrand, Montpellier

     

  • image_de_profil

    Directeur d'Etudes EPHE-PSL 

     CEFE/CNRS Campus du CNRS
    1919, route de Mende
    34293 Montpellier cedex 5

    Tel. : +33(0)4 67 61 33 43

    Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser. 

    My research is in the field of evolutionary ecology, often with a conservation point of view. I study variation among populations (mostly amphibians) along gradients (altitude, pollutants), to identify eg local adaptations in life history traits. More recently, I developped research in epidemiology to understand the dynamics of diseases affecting amphibian populations. Finally, I continue some eco-ethological studies mainly with amphibian dispersal by direct (eg radiotracking) and indirect (eg genetic markers) methods. More recently, I was back to the field of environmetal DNA, with the development of passive samplers for marine and freshwater biodiversity inventories.

  •  

    Elena

    Professeure Institut Agro Montpellier

    CEFE UMR5175
    Campus du CNRS
    1919, route de Mende
    F-34293 Montpellier cedex 5
    France

    Tél : +33 4 67 61 33 34

    Fax : +33 4 67 61 33 36

    Courriel : Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.

    Site web perso : Elena.Kazakou.wordpress.com

    Orcid ID 

    2e Etage Aile C bureau 211

     

     

     

     

     

     

     


     

     

     

     

    Principaux thèmes de recherches

    Mes recherches portent sur l'analyse des conséquences écologiques sur la variabilité du fonctionnement des espèces à travers l'utilisation des traits fonctionnels des plantes.

    Plus précisément, les principaux objectifs de mes recherches sont les suivants :

    - Caractériser les réponses des espèces (croissance, performance, reproduction) et leurs stratégies écologiques à travers différents gradients environnementaux (abandon culturel, intensification culturelle, pâturage, fertilisation, concentration en métaux lourds dans le sol)

    - Décrire les liens entre les traits fonctionnels des espèces et le fonctionnement des écosystèmes (décomposition de la litière, digestibilité de la biomasse) dans un contexte de changement d'utilisation des terres. Je m'intéresse particulièrement à la détermination des liens entre les traits des espèces et leur appétence et leur digestibilité.

    -Identifier les liens entre les parties aériennes et souterraines en réponse à l'herbivorie : tester l'hypothèse de la vie après la mort dans différents contextes et avec différents herbivores (mammifères, mollusques, insectes).

    -Caractériser les réponses des communautés de mauvaises herbes à différents systèmes agricoles innovants, en particulier dans les vignobles, et leurs effets sur les services écosystémiques (pollinisation, régulations biologiques).

    Sans titre

     

     

    Research interests

    My research is focused on the analysis of the ecological consequences on the variability of species functioning via the use of plant functional traits.

    More precisely the main objectives of my research are:
    -Characterize species responses (growth, performance, reproduction) and species ecological strategies across environmental gradients (cultural abandon cultural intensification, grazing, fertilization, concentration on heavy metals on soil)
    -Description of the links between species functional traits and ecosystem functioning (litter decomposition, biomass digestibility) in a context of land use change. Especially, I am interested to determine the links between species traits and their palatability and digestibility.
    -Identify the above-belowground linkages in response to herbivory: test the after-life hypothesis in different contexts and with different herbivores (mammals, mollusks, insects).
    -Characterize weed communities responses to different innovate agricultural systems and especially in vineyards and the effects on the ecosystem services (pollination, biologial regulations).

    Image3

     

    Publications

    P57. Tabary L, Kazakou E, Garcia L, Navia D, Tixier M-S. The effect of plant diversification in agroecological vineyards and predatory mites diversity (in press Pest Management Science)
    P56. Garnier E, Delalandre L, Segrestin J, Barkaoui K, Kazakou E, Navas M-L, Vile D, Violle C, Bernard-Verdier et al. FAIRTraits: An enriched, FAIR-compliant database of plant traits from Mediterranean populations of 240 species. Ecology, 106(9): e70219.
    P55. Tabary L, Garcia L, Kazakou E, Navia D, Tixier M-S. Ambulatory dispersal of Phytoseiidae mites along vine stocks in an agroecological vineyard: unexpected patterns revealed. Experimental and Applied Acarology (in press).
    P4. Tabary L, Kazakou E, Tixier M-S, Navia D, Garcia L. Multifunctionality of agroecological vineyards: complex interactions between functional and taxonomic diversity of service crops and ecosystem services. Agriculture, Ecosystems and Environment (in press).
    P53. Tabary L, Kazakou E, Navia D, Garcia L, Tixier M-S. Linking Phytoseiidae mite communities to the traits of inter-row plant species in an agroecological vineyard. Journal of Applied Entomology (in press).
    P52. Martin Lefevre L, Ollivier M, Kazakou E, Bopp M-C, Fried G. Impacts of Agricultural Intensification on Weed Floral and Competitive Traits: A Spatiotemporal Study in French Vineyards and Annual Crops, Agriculture, Ecosystems and Environment 394 (2025) 109877..
    P51. Genty L, Metay A, Kazakou E, Baude M, Gardarin A, Michelot-Antalik A, Barkaoui K (2025). Agricultural practices in olive groves modify weeds floral traits and resources throughout the year. Agriculture, Ecosystems and Environment 377:109280, 9.
    P50. Bopp M-C, Kazakou E, Metay A, Maillet J, Quidoz M-C, Genty L, Fried G. (2025). Climate and management changes in 40 years drove more stress-tolerant and less ruderal weeds communities in vineyards. Ecological monographs 95(1), e1631.
    P49. Bopp M-C, De Deyn G, Zwetsloot M, Moinet G, Fried G, Metay A, Fromin N, Fort F, Buatois B, Bastiaans L, Kazakou E. (2025). Weed management modifies functional properties of both weeds and microbial nitrogen-cycling. Journal of Applied Ecology 62 (2): 388-400.
    P48. Genty L, Kazakou E, Metay A, Baude M, Gardarin A, Michelot-Antalik A, Leroy A, Sotillo A, Crouzet J, Barkaoui K. (2024) Flowers of ruderal species are numerous but small, short and low-rewarding. Oikos, e10219.
    P47. Segrestin J, Kazakou E, Coq S, Sartori K, Richarte J, Rowe N, Garnier E. (2023). Responses of leaf biomechanics and underlying traits to rangeland management. Journal of Vegetation Science 34: e13216.
    P46. Xyrafis EG, Kazakou E, Biniair K. (2023). A case study on the use of inter-row cover crops on a new and old vineyard cv. 'Asyrtiko' in Santorini Island. Notulae botanicae Horti Agrobotanici Cluj-Napoca 51(1) 13252.
    P45. Rakotomanga D, Kazakou E, Damour G. (2023). Plant height and biomass as presdictors of between-species interactions in mixed cover crops-spontaneous species communities along a croppping practices gradient. Agriculture, Ecosystems and Environment (SSRN 4132189).
    P44. Genty L, Kazakou E, Metay A, Bastianelli D, Bopp M-C, Barkaoui K. (2023). Promising weeds forage potential in perennial Mediterranean agroecosystems. Agriculture, Ecosystems and Environment, 347:108388, 13.
    P43. Chapuis M-P, Leménager N, Piou C, Roumet P, Marche H, Centanni J, Estienne C, Ecarnot M, Vasseur F, Violle C, Kazakou E. (2023) Domestication provides durum wheat with protection from locust herbivory. Ecology and Evolution 13, e9741.
    P42. Reinelt L, Whitaker J, Kazakou E, Bonnal L, Bastianelli D, Bullock J, Ostle N. (2023) Drought effects on root and shoot traits and their decomposability. Functional Ecology 37, 1044–1054.
    P41. Kazakou E, Bumb I, Garnier E (2023). Species dominance rather than complementarity drives communitiy digestibility and litter decomposition in species-rich Mediterranean rangelands. Applied Vegetation Science 25 (4), 10.1111/avsc.12685.
    P40. Bopp M-C, Fried G, Metay A, Bastianelli D, Bonnal L, Kazakou E. (2022). Linkages between traits and decomposition of weed communities along a soil management and pedoclimate gradient in Mediterranean vineyards. Annals of Botany 130(4):547-560.
    P39. Fried G, Blanchet C, Cazenave L, Bopp M-C, Kazakou E, Metay, A, Christen, M., Alard, D, Cordeau, S. (2022). Consistent response of weeds according to Grime’s CSR strategies along a gradient of disturbance and resources in Bordeaux vineyards. Weed Research 62, 347-359.
    P38. Vasseur F, Cornet D, Beurier G, Messier J, Rouan L, Bresson J, Ecarnot M, Stahl M, Heumos S, Gérard M, Reijnen H, Tillard P, Lacombe B, Emanuel A, Floret J, Estarague A, Przybylska S, Sartori K, Gillespie L, Baron E, Kazakou E, Vile D, Violle C. (2022). A Perspective on Plant Phenomics: Coupling Deep Learning and Near-Infrared Spectroscopy. Frontiers in Plant Science, 13.
    P37. Sartori K, Violle C, Vile D, Vasseur F, de Villemereuil P, Bresson J, Gillespie L, Fletcher L, Sack L, Kazakou E. (2022). Does leaf nitrogen resorption dynamics reflect adaptation to slow-fast continuum? A test across ecotypes of Arabidopsis thaliana. Functional Ecology, 36(5): 1315-1328.
    P36. Bopp M-C, Kazakou E, Metay A, Fried G. (2002). Relative importance of region, seasonality and weed management practice effects on the functional structure of weed communities in French vineyards. Agriculture Ecosystems and Environment 330: 107892.
    P35. Kazakou E, Fried G, Cheptou PO, Gimenez G. (2021). Does seed mass drive interspecies variation in the effect of management practices on weed demography? Ecology and Evolution 11(19): 13166-137174.
    P34. Crespo-Pérez V, Kazakou E, Roubik DW, Cárdenas RE. (2020). The importance of insects on land and in water: a tropical view. Current Opinion in Insect Science 20:31-38.
    P33. Garcia L, Metay A, Kazakou E, Storkey J, Gary C, Damour G. (2020). Optimizing the choice of service crops in vineyards to achieve both runoff mitigation and water provisioning for grapevine: a trait-based approach. Plant and Soil 452(1-2): 87-104.
    P32. Garcia L, Damour G, Kazakou E, Guillaume F, Metay A. (2020). Seasonal and interannual variations in functional traits of sown and spontaneous species in vineyard inter-rows Ecoscience 25: 311-324.
    P31. Coq S, J Nahmani J, Kazakou E, Fromin N, David J-F. (2020). Do litter-feeding macroarthropods disrupt cascading effects of land use on microbial decomposer activity. Basic and Applied Ecology 46: 24-34.
    P30. Ollivier M, Kazakou E, Corbin M, Sartori K, Lesieur V, Thomann T, Martin J-F, Tixier M-S. (2020). Traits comparison of the invasive weed Sonchus oleraceus L. (Asteraceae) between its native and introduced ranges. Neobiota 55: 85-115.
    P29. Sartori K, Vasseur F, Violle C, Baron E, Gérard M, Rowe N, Ayala-Garay O, Garcia de Jalon L, Masclef D, Harscouet E, Del Rey Granado M, Chassagneux A, Christophe A, Kazakou E, Vile D. (2019). Leaf economics guides slow-fast adaptation across the geographic range of Arabidopsis thaliana. Scientific Reports 9:10758.
    P28. Kazakou E, Vasseur F, Sartori K, Baron E, Rowe N, Vile D. (2019). Secondary metabolites have more influence than morpho‐physiological traits on litter decomposability across genotypes of Arabidopsis thaliana. New Phytologist 224(4):1532-1543.
    P27. Fried G, Cordeau S, Métay A Kazakou E. (2019). Relative importance of environmental factors and farming practices in shaping weed communities’ structure and composition in French vineyards. Agriculture Ecosystems and Environment 275:1-13.
    P26. Coq S, Nahmani J, Resmond R, Segrestin J, David JF, Schevin P, Kazakou E. (2018). Intraspecific variation in litter palatability to macroarthropods in response to grazing and soil fertility. Functional Ecology 32 (11): 2615-2624.
    P25. Vasseur F, Sartori K, Baron E, Fort F, Kazakou E, & Segrestin j, Garnier E, Vile D, Violle C (2018). Climate as a driver of adaptive variations in ecological strategies in Arabidopsis thaliana. Annals of Botany 122(6): 935-941.
    P24. Bumb I, Garnier E, Coq S, Nahmani J, Del Rey Granado M, Gimenez O, Kazakou E. (2018). Traits determining the digestibility– decomposability relationships in species from Mediterranean rangelands. Annals of Botany, 121 (3): 459–469.
    P23. Kazakou E, Fried G, Richarte G, Gimenez O, Violle C, Metay A (2016). A plant-trait response and effect framework to assess inter-row vineyards soil management. Botany letters 163 (4): 373-388.
    P22. Adamidis G, Kazakou E, Aloupi M, Dimitrakopoulos P. Is it worth to hyperaccumulate Ni on non-serpentine soils ? (2016) Decomposition dynamics of mixed-species litters containing hyperaccumulated Ni across serpentine and non-serpentine environments. Annals of Botany 117(7): 1241-1248.
    P21. Bumb I, Garnier E, Bastianelli D, Richarte J, Bonnal L, Kazakou E. (2016). Influence of management regime and harvest date on the forage quality of rangelands plants: the importance of dry matter content AoB PLANTS 8:pwl045.
    P20. Lü X-T, Freschet G, Kazakou E, Zhou L-S, Han XG (2015). Contrasting responses in leaf nutrient-use strategies of two dominant grass species along a 30-yr temperate steppe grazing exclusion chronosequence. Plant and Soil 387:69-79.
    P19. Kazakou E, Violle C, Roumet C, Navas M-L, Vile D, Kattge J, Garnier E. (2014). Are trait-based species’ rankings consistent across datasets and spatial scales? Journal of Vegetation Science 25(1): 235-247.
    P18. Gardarin A, Garnier E, Carrère P, Cruz P, Andueza D, Bonis A, ColaceM-P, DumontB, Duru M, Farruggia A, Gaucherand S, Grigulis K, Kernéïs E, Lavorel S, Louault F, Loucougaray G, Mesléard F, Yaverkovski N, Kazakou E. (2014) .Plant trait–digestibility relationships across management and climate gradients in permanent grasslands. Journal of Applied Ecology. 51 : 1207-1217
    P17. Adamidis G, Kazakou E, Baker AJM, Reeves R, Dimitrakopoulos P. (2014). The effect of harsh abiotic conditions on the diversity of serpentine plant communities on Lesbos, an eastern Mediterranean island. Plant Ecology & Diversity7(3): 433-444.
    P16. Adamidis G, Aloupi M, Kazakou E, Dimitrakopoulos P. (2014). Intra-specific variation in Ni tolerance, accumulation and translocation patterns in the Ni-hyperaccumulator Alyssum lesbiacum. Chemosphere 95: 496-502.
    P15. Adamidis G, Kazakou E, Fyllas N, Dimitrakopoulos P. (2014). Species adaptive strategies and leaf economic relationships across serpentine and non-serpentine habitats on Lesbos, eastern Mediterranean. Plos One 9(5):e96034.
    P14. Gaba S, Fried G, Kazakou E, Chauvel B, Navas M-L. (2013). Agroecological weed control using a functional approach: a review of cropping systems diversity. Agronomy for Sustainable Development34: 103-119.
    P13. Fried G, Kazakou E, Gaba S. (2013). Trajectories of weed communities explained by traits associated with species’ response to management practices. Agriculture, Ecosystems and Environment 158: 147–155.
    P12. Birouste M, Kazakou E, Blanchard A, Roumet C. (2011). Plant traits and decomposition: are the relationships for roots comparable to those for leaves? Annals of Botany109(2): 463-472.
    P11. Kazakou E, Adamidis G, Baker AJM, Reeves RD, Godino M, Dimitrakopoulos P.(2010). Species adaptation in serpentine soils in Lesbos Island (Greece): metal hyperaccumulation and tolerance. Plant and Soil 332(17): 369-385.
    P10. Kazakou E, Violle C, Roumet C, Pintor C, Gimenez O, Garnier E. (2009). Litter quality and decomposability of species from a Mediterranean succession depend on leaf traits but not on nitrogen supply. Annals of Botany 104: 1151–116.
    P9. Fortunel C, Garnier E, Joffre R, Kazakou E, Quested H, Grigulis K, Lavorel S, and the VISTA consortium (2009). Leaf traits capture the effects of land use changes and climate on litter decomposability of herbaceous communities across Europe. Ecology 90(3): 598-611.
    P8.Pakeman R, Leps J, Kleyer M, Lavorel S, Garnier E, Ansquer P, Castro H, Cruz P, Dolezal J, Eriksson O, Fortunel C, Freitas H, Golodets C, Grigulis K, Jouany C, Kazakou E, Kigel J, Kleyer M, Lehsten V, Lepš J, Meier T, Pakeman R, Papadimitriou M, Papanastasis V, Quested H, Quétier F, Robson M, Roumet C, Rusch G, Skarpe M, Sternberg M, Theau J-P, Thébault A, Vile D, Zarovali M (2009). Relative climatic, edaphic and management controls of plant functional trait signatures. Journal of Vegetation Science 20: 148–159.
    P7. Kazakou E, Dimitrakopoulos PG, Baker AJM, Reeves RD, Troumbis A. (2008). Hypotheses, mechanisms and trade-offs of tolerance and adaptation to serpentine soils: from species to ecosystem levelBiological reviews 83: 495-508.
    P6. Cornwell WK, Cornelissen JHC, Amatangelo K, Dorrepaal E, Eviner VT, Godoy O, Hobbie SE, Hoorens B, Kurokawa H, Perez Harguindeguy N, Quested HM, Santiago LS, Wardle DA, Wright IJ, Aerts R, Allison SD, van Bodegom, Brovkin V, Chatain A, Callaghan T, Díaz S, Garnier E, Gurvich DE, Kazakou E, Klein JA, Read J, Reich PB, Soudzilovskaia NA, Vaieretti MV, Westoby M. (2008). Plant species traits are the predominant control on litter decomposition rates within biomes worldwide. Ecology Letters 11: 1065-1071.
    P5. Kazakou E, Gimenez O, Garnier E. (2007). Assessing the relative contribution of leaf lifespan and nutrient resorption to mean residence time: an elasticity analysis. Ecology 88 (7): 1857-1863.
    P4. Kazakou E, Garnier E, Navas M-L, Roumet C, Collin C, Laurent G. (2007). Components of nutrient residence time and the leaf economics spectrum in species from Mediterranean old-fields differing in successional status.Functional Ecology21: 235-245.
    P3. Violle C, Navas M-L, Vile D, Kazakou E, Fortunel C, Hummel I, Garnier E. (2007). Let the concept of trait be functional! Oikos 116: 882-892.
    P2. Garnier E, Lavorel S, Ansquer P, Castro H, Cruz P, Dolezal J, Eriksson O, Fortunel C, Freitas H. Golodets C, Grigulis K, Jouany C, Kazakou E, Kigel J. Kleyer M, Lehsten V, Lepš J, Meier T, Pakeman R, Papadimitriou M, Papanastasis V, Quested H, Quétier F, Robson M, Roumet C, Rusch G, Skarpe M, Sternberg M, Theau J-P, Thébault A, Vile D, Zarovali M (2006). Assessing the effects of land use change on plant traits, communities and ecosystem functioning in grasslands: a standardized methodology and lessons from an application to 11 European sites. Annals of Botany 99: 967-985.
    P1. Kazakou E, Vile D, Shipley B, Gallet C. Garnier E (2006). Co-variations in litter decomposition, leaf traits and plant growth in species from a Mediterranean old-field succession. Functional Ecology20: 21-30.

     Image4

    Programmes

    -Projet Fellow ‘Weeds as crop fellows? Spatio-temporal functional changes of weed communities due to the impacts of a gradient of human pressures and their potential on biodiversity-mediated ecosystem services’. https://www.fondationbiodiversite.fr/la-frb-en-action/programmes-et-projets/le-cesab/fellow/ (2024-2027).

    -Projet TRIBE ‘Développement d’indicateurs basés sur les Traits des adventices pour évaluer les pratiques agricoles gérant le RIsque malherbologique et produisant des BEnéfices écosystémiques,’ PI = E Kazakou et G Fried (2023-2026).

    -Projet FLAVI ‘Comprendre les dynamiques spatio-temporelles de la diversité fonctionnelle florale des adventices afin de préserver les pollinisateurs le long d’un gradient de pratiques culturales dans des vignobles de la région d’Occitanie’, défi-clé OCTAAVE https://octaave.univ-toulouse.fr/projet-de-recherche-flavi/ (2023-2026).

    -Programme Saving: Dynamique spatio-temporelle des communautés d’espèces adventices en réponse aux pratiques de gestion des sols dans les vignobles : une approche fonctionnelle Ecophyto et Région Occitanie (oct 2019-oct 2022).

    -Programme DINER - exploring Domestication Impacts on plaNt-insEct-bacteRia interactions (26 months). Funding by the Centre Méditerranéen encironnement et biodiversité. CEMEB (Centre Méditerranéen encironnement et biodiversité).

    - Programme "Cascade: Interactions trophiques et fonctionnement des écosystèmes terrestres: une approche fonctionnelle et chimique" INSU CNRS 2012-2014. 

    - Programme DivHerbe (Programme National ECCO/ECOGER) : 2006-2008.

    - Programme  GESSOL 3-Fonction environnementales et gestion du patrimoine sol : Préservation des sols viticoles méditerranéens et amélioration

     

    Enseignement

    Enseignement de l'écologie fonctionnelle, biologie, écologie et gestion des adventices

     

    Responsabilités d'enseignement

    -Responsable de l'option M2 "Protection des Plantes et Environnement" de l'Institut Agro Montpellier

    -Responsable national du Master Erasmus Mundus Plant Health http://planthealth.upv.es/?lang=fr

    -Responsable nationale du Master 3A parcours Santé des Plantes

    -Co-responsable de la Dominante 3 "Gestion durable des ressources naturelles"

    -Co-ordination des 6 unités d'enseignements à l'Institut Agro Montpellier

  • F Richard
    Professeur des Universités, Université de Montpellier

     

    Courriel : Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.

     

     

  • JMB1

     

    Chargé de recherche à l’INSERM

    Ma principale activité de recherche porte sur l’évolution et la diversité taxinomique des macromycètes, que j’aborde via l’analyse phylogénétique d’échantillons issus d’un large réseau de mycologues européens partenaires. Je constitue aussi une extractothèque fongique destinée à mettre en évidence et valoriser le potentiel bioactif de ces organismes dans le domaine de la santé humaine.

    My research is mainly focused on the evolution and the taxonomic diversity of higher fungi. I am adressing this issue through the phylogenetic analysis of samples originating from a broad network of European partner mycologists. I am also assembling a fungal extract library, aiming at revealing and promoting the bioactivities of these organisms in the field of human health.

     

    Courriel : Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.

     

  •  

     IMG 8157

     

    Chargée de recherche au CNRS

    CEFE UMR5175
    Campus du CNRS
    1919, route de Mende
    F-34293 Montpellier cedex 5
    France

    Tél : +33 4 67 61 32 19
    Fax : +33 (0) 4 67 61 33 36

    Courriel : Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.

    ORCID 0000-0002-2227-0410

    bureau 2-C-203

     

     

     

     

     

     

     

     

     

     

     

    Mots-clés :
    Interdisciplinarity, Chemical ecology, Sensory ecology, Specialized metabolism, Volatile organic compounds, Plant-insect interactions, Pollination ecology, Adaptation of interactions to global change, Atmospheric pollution, fig-fig wasp interactions, Mediterranean region, Tropical Region.

     

    Mes recherches portent sur les interactions interspécifiques, plus particulièrement entre plantes et insectes. Mes projets de recherche s´intègrent dans le domaine de l´écologie chimique. En favorisant une approche interdisciplinaire combinant la chimie analytique, l’écologie comportementale, la physiologie sensorielle et la biologie évolutive, j’ai étudié le rôle de la médiation chimique, particulièrement via les composés organiques volatils (COVs), dans le fonctionnement d’interactions de différents types : pollinisation, herbivorie, parasitisme et reconnaissance entre partenaires sexuels. Je travaille aussi bien dans des écosystèmes méditerranéens que tropicaux.

     

    My research focuses on interspecific interactions, particularly between plants and insects. My research projects are in the field of chemical ecology. Favoring an interdisciplinary approach combining analytical chemistry, behavioral l ́ecology, sensory physiology and evolutionary biology, I have studied the role of chemical mediation, particularly via volatile organic compounds (VOCs), in the functioning of different types of interactions: pollination, herbivory, parasitism and recognition between sexual partners. I work in both Mediterranean and tropical ecosystems.


    Thématiques français

    Je consacre une partie de mes activités de recherche à la caractérisation des mécanismes évolutifs impliqués dans la nature des messagers chimiques ainsi que la détection de ces composés dans les interactions plantes-pollinisateurs. L’autre axe de mes recherches porte sur l ́impact des changements environnementaux globaux, principalement climatiques et de concentrations en polluants atmosphériques, sur la communication chimique plantes-pollinisateurs. Ces deux axes de recherches sont abordés de manière originale et intégrative car je m’intéresse aussi bien aux pressions de sélections qu’aux sources de variations proximales qui peuvent affecter l’émission des COVs, leur stabilité dans l’atmosphère que leur détection par les pollinisateurs. Une originalité forte de mon approche est que je cherche à connecter différentes disciplines afin d’étudier conjointement les deux fonctions principales des COVs émis par les plantes : défenses contre des stress (abiotiques et biotiques) et reproduction.

     

    Anglais

    I dedicate part of my research activities to characterizing the evolutionary mechanisms involved in the nature of chemical messengers and the detection of these compounds in plant-pollinator interactions. The other part of my research focuses on the impact of global environmental changes, mainly climatic and atmospheric pollutant concentration changes, on plant-pollinator chemical communication. These two areas of research are approached in an original and integrative way, as I am interested in both selection pressures and sources of proximal variations that can affect the emission of VOCs, their stability in the atmosphere and their detection by pollinators. A strong originality of my approach is that I attempt to connect different disciplines in order to jointly study the two main functions of VOCs emitted by plants: defense against stresses (abiotic and biotic), and reproduction.

     

    Projects since 2019

    POLLURISK project, MUSE (Montpellier University of Excellence): Impact of ozone POLLUtion, in the context of climate change, on plant-pollinator chemical communication: RISQue pour la résilience des services écosystémiques (2018-2022, 150 k€, PI).

    ExpOz project, ANSES: Determination of ozone exposure threshold values for the resilience of plant-insect chemical communication (2019-2022, 200 k€, PI).

    Partners: IMBE; LCE; LBVpam; FLP-UAE (Morocco).

    The aim of these two projects was to characterize the effect of ozone pollution (O3) on chemical communication in two types of plant-pollinator interactions: the highly specialized and obligatory interaction between the cultivated fig tree and its pollinating wasp, and the generalist interaction between lavender and the honey bee. At the end of this project, we will define tolerance thresholds for the resilience of these two interactions to a major pollutant.

    IRP Chine MOST project, CNRS-INEE: "Figs and fig-wasps: a model system to investigate biotic interaction network responses to global change" (2018-2022 then 2025-2029, 100 k€, PI). Partners: XTBG ; SCBG.

    The aim of the IRP was to generate basic knowledge on the impact of increasing levels of carbon dioxide (CO2) and O3on the stability of interaction networks and, more specifically, on the ecosystem services of pollination. For this, we used a model system, the specific mutualism between Ficus and fig insects. We studied how insects' attraction to the VOCs produced by their specific host plant was affected by high concentrations of O3and CO2through comparative studies conducted between three regions with high and variable tropospheric O3 concentrations, southern France, southern Yunnan and Guangdong.

    Chime2 project, PRIME 80 CNRS-INEE-IC: Biochemical constraints and ecological selection pressures in the evolution of volatile organic compounds responsible for pollinator attraction (2019-2022, 150 k€, PI) Partners: XTBG; LBVpam ; ICN.

    The main objective of this project was to understand the evolutionary dynamics of floral VOC emission. Using fig trees, the aim was to understand the involvement of biochemical constraints, linked to volatile biosynthesis pathways, as well as ecological selection pressures in the establishment of VOCs responsible for attracting specialized pollinators. This approach will enable more general conclusions to be drawn on the mechanisms of co-evolution and co-adaptation at the level of chemical communication in plant-pollinator mutualistic interactions.

    ASPI project, ANSES: Wild bees in the city: effects of urban pollutants on insect health and plant-pollinator interactions (2020-2024, 200 k€, WP manager). Partners: EEP; University of Mons (Belgium).

    Thisproject aims to understand the effects of exposure of wild pollinators to urban pollutants (PAHs and phthalates), by combining several approaches. This will involve: (Axis 1) determining the nature and levels of contamination of wild bees living in cities (Axis 2) exploring the effects of living in low vs. highly polluted sites on pollinator health, the attractiveness of floral resources and the quality of pollen produced (Axis 3) characterizing the individual and colonial effects of exposure under controlled conditions to realistic mixtures of families of these contaminants.

    COMIX project, French Embassy in China: Comparative study of the effect of O3 concentration on the behavior of different species of fig tree pollinators (2019-2020, 13 k€, PI). Partners: XTBG; SCBG (China).

    The aim of the project was to compare the sensitivity of different species of fig pollinators to different concentrations of O3.

    PolluCom project, ANR: "Effects of ozone pollution on plant-pollinator chemical communication under global warming, consequences for their interactions" (2023-2026, 702 k€, PI) Partners: LBVpam; IEES and Ecotron de Montpellier.

    The aim of this project is to test the individual and combined effects of the two stress factors, O3and temperature, on two pollination systems with different levels of specialization and with a focus on studying the mechanisms of action of O3, using a broadly interdisciplinary approach. Both environmental stressors are expected to have an impact on plant and pollinator physiology, affecting, respectively, the emission of VOCs and their perception. These effects would emerge in particular from changes in the expression of genes involved in VOC biosynthesis and olfaction. We predict that these changes will disrupt plant-pollinator chemical communication and thus their interaction, with the generalist pollination system being more resilient than the specialist.

    BeeMed project, ANSES: Resilience of bees to global changes through the prism of self-medication (2023-2025, 200 k€, P). Partners: ECOBIO; IMBE.

    This project aims to define the capacity of different wild bee species to adapt to air pollution and climate change. More specifically, we will test the nutritional and self-medication resilience of bees by considering the spatiotemporal heterogeneity of environmental stressors and characterizing antioxidant resources within flowering plant pollen.

    IRP Thailand SPECIFLY, CNRS-INEE project: "Characterization little-known of biodiversity: Ecology and evolution of specialized pollination by flies" (2023-2027, 10k€/year P). Partner: Chulalongkorn University.

    This project aims to compare pollinator attraction strategies in two phylogenetically distant plant genera,Ceropegia (Thailand) andAristolochia (France), some of whose species have converged on the same deceptive pollination strategy. In addition to establishing a solid collaboration with the Thai team, this project opens up new prospects for understanding the factors governing the evolution of floral specialization.

    Air pollution project, CAS: "Effects of air pollution on chemical communication between species - a case study of figs and fig wasps".  (2023-2026, 400 k€/ WP manager).  Partner: SCBG.

    The aim of the project is to provide basic knowledge on the impact of air pollution on the stability of the interaction network between insects and plants. To this end, the effects of major pollutants (O3, NOX) on fig odor and the response of fig wasps to this variation in the Guangdong-Hong Kong-Macao Bay regionwill be investigated.

    IRN China project, Virtual Institute on Biodiversity, CAS-CNRS (2024-2028, 15k€/year PI). Partners:  researchers from 25 different units.

    The virtual institute comprises a steering committee and around 15 pairs of principal investigators from CAS and CNRS institutes. The main objective of this IRN is to strengthen and develop Franco-Chinese collaboration on various aspects of biodiversity research through a network of scientists from both countries, and to set up an educational program for young scientists.

    Blastosome project, Exposome-CNRS: A novel component of the fig exposome: its pollinator, the blastophage (2025-2026, 25k€ PI). Partners CRBM Montpellier (CNRS-INSB).

    Our project is to study the disruptive effect of ozone pollution and rising temperatures on fig tree-blastophaga-Wolbachia-nematode interactions. We will draw on the complementary skills of a CNRS Biology team specializing in Wolbachia, nematodes and insect reproduction, and a CNRS Ecology & Environment team specializing in the chemical ecology and evolutionary biology of the Ficus-pollinator system.

     

    Liste de publications

    Blatrix R., Kidyoo A., Matrougui I., Samsungnoen P., McKey D., Proffit M., 2024. Mechanical stimulation of the stigmas triggers switch from female to male phase in the protogynous trap flower of Aristolochia rotunda (Aristolochiaceae). Mediterranean Botany, 45, e85906. https://doi.org/10.5209/mbot.85906

    Dubuisson C, Worthan H, Garinie T, Hossaert-McKey M, Lapeyre B, Buatois B, Temime-Roussel B, Ormeño E, Staudt M, Proffit M. 2024. Ozone alters the chemical signal required for plant – insect pollination: the case of the Mediterranean fig tree and its specific pollinator. Science of the total environment 827.

    Démares F, Gibert L, Lapeyre B, Creusot P, Renault D, Proffit M. 2024. Ozone exposure induces metabolic stress and olfactory memory disturbance in honey bees. Chemosphere, 140647.

    Hmimsa Y, ·Ramet A, · Dubuisson C, · El Fatehi S, Hossaert-McKey M, · Kahi H, · Munch J, · Proffit M, · Salpeteur M, ·  Aumeeruddy-Thomas Y. 2024. Pollination of the Mediterranean fig tree, Ficus carica L.: Caprification practices and social networks of exchange of caprifigs among Jbala Farmers in Northern Morocco. Human Ecology 52, 289–302

    Kidyoo A., Kidyoo M., Ekkaphan P., Blatrix R., McKey D, Proffit M., 2024. Specialized pollination by cecidomyiid flies and associated floral traits in Vincetoxicum sangyojarniae (Apocynaceae, Asclepiadoideae). Plant Biology, 26, 166-180. https://doi.org/10.1111/plb.13607

    Cao L, Hmimsa Y, El fatehi S, Buatois B, Dubois MP, Le Moigne M, Hossaert‑McKey M, Aumeeruddy‑Thomas Y, Bagnères AG, Proffit M. 2023. Floral scent of the Mediterranean fig tree: significant inter‑varietal difference but strong conservation of the signal responsible for pollinator attraction. Scientific Reports | (2023) 13:5642 https://doi.org/10.1038/s41598-023-32450-6

    Deng X, Buatois B, Peng YQ, Yu H, Cheng Y, Ge X, Proffit M, Kjellberg F. 2023. Plants are the drivers of geographic variation of floral odours in brood site pollination mutualisms: a case study of Ficus hirta. Acta Oecologica, 121,103952.

    Fernandez C, Saunier A, Wortham H, Ormeño E, Proffit M, Lecareux C, Greff S, Van Tan D, Tuan MS, Hoan HD, et al. 2023. Mangrove’s species are weak isoprenoid emitters. Estuarine, Coastal and Shelf Science 283: 108256.

    Demares F, Gibert L, Creusot P, Lapeyre B, Proffit M. 2022. Acute ozone exposure impairs detection of floral odor, learning, and memory of honey bees, through olfactory generalization. Science of the total environment 827.

    Dubuisson C, Nicolè F, Buatois B, Hossaert-Mckey M, Proffit M. 2022. Tropospheric ozone alters the chemical signal emitted by an emblematic plant of the mediterranean region: the true lavender (Lavandula angustifolia Mill.). Frontiers in Ecology and Evolution, 10, ff10.3389/fevo.2022.795588ff. ffhal-03871592f

    Kidyoo A., Kidyoo M., McKey D., Proffit M., Deconninck G., Wattana P., Uamjan N., Ekkaphan P., Blatrix, R., 2022. Pollinator and floral odor specificity among four synchronopatric species of Ceropegia (Apocynaceae) suggests ethological isolation that prevents reproductive interference. Scientific Reports, 12, 13788. https://doi.org/10.1038/s41598-022-18031-z

    Kidyoo A, Kidyoo M, Blatrix R, Deconninck G, McKey D, Ekkaphan P, Proffit M. 2021. Molecular phylogenetic analysis and taxonomic reconsideration of Ceropegia hirsuta (Apocynaceae, Asclepiadoideae) reveal a novelty in Thailand, Ceropegia citrina sp. nov., with notes on its pollination ecology. Plant systematics and evolution 307.

    Vanderplanck M., Lapeyre B., Brondani M., Opsommer M., Dufay M., Hossaert-McKey M., Proffit M. 2021. Ozone pollution alters olfaction and behavior of pollinators. Antioxidants 2021, 10, 636. https://doi.org/10.3390/antiox10050636

    Vanderplanck M, Lapeyre B, Lucas S, Proffit M. 2021. Ozone induces distress behaviors in fig wasps with a reduced chance of recovery. INSECTS 12.

    Dormont L, Fort T, Bessiere J, Proffit M, Hidalgo E, Buatois B, Schatz B. 2020. Sources of floral scent variation in the food-deceptive orchid Orchis mascula.Acta oecologica 107.

    Proffit M., LapeyreB., Buatois B., Deng X.X., Arnal P., Gouzerh F., Carrasco D., Hossaert-McKey M. 2020. Chemical signal is in the blend: bases of plant-pollinator encounter in a highly specialized interaction. Scientific Reports 10:10071

    Conchou L., Lucas P., Meslin C., Proffit M., Staudt M., Renou M. 2019. Insect odorscapes: from plant volatiles to natural olfactory scenes. Frontiers in Physiology, 10:972. doi: 10.3389/fphys.2019.00972 

    Carrasco D.*, Desurmont G.A.*, Laplanche D., Proffit M., Gols R., Becher P.G., Larsson M.C., Turlings T.C.J., Anderson P. 2018. With or without you: effects of the concurrent range expansion of an herbivore and its natural enemy on native species interactions. Global Change Biology, 24(2):631-643.

    Proffit M., Bessière J.M., Schatz B., Hossaert-McKey M. 2018. Can fine-scale post-pollination variation of fig volatile compounds explain some steps of the temporal succession of fig wasps associated with Ficus racemosa? Acta Oecologica, https://doi.org/10.1016/j.actao.2017.08.009.

    Souto-Vilarós D., Proffit M., Buatois B., Rindos M., Sisol M., Kuyaiva T., Michalek J., Darwell C.T. , Hossaert-McKey M., Weiblen G. D. , Novotny V., Segar S.T. 2018 Pollination along an elevational gradient mediated both by floral scent and pollinator compatibility in the fig and fig-wasp mutualism. Journal of Ecology, 106:2256-2273.

    Karlsson M.F., Proffit M., Birgersson. 2017. Host-plant location by the Guatemalan potato moth Tecia solanivora is assisted by floral volatiles.Chemoecology. 27(5):187-198.

    Santonja M., Fernandez C., Proffit M., Gers C., Gauquelin T., Reiter I.M., Cramer W., Baldy V. 2017. Plant litter mixture partly mitigates the negative effects of extended drought on soil biota and litter decomposition in a Mediterranean oak forest. Journal of Ecology, doi: 10.1111/1365-2745.12711.

    Hossaert-McKey M., Proffit M., Soler C., Chen C., Bessière J.M., Schatz B., Borges R.M. (2016). How to be a dioecious fig: Chemical mimicry between sexes matters only when both sexes flower synchronously. Scientific Reports 6, 21236.

    Kjellberg F., Proffit M. (2016). Tracking the elusive history of diversification in plant-herbivorous insect-parasitoid food webs: insights from figs and fig-wasps.Molecular Ecology, 25, 843-845.

    Proffit M., Khallaf M., Carrasco D., Larsson M. & Anderson P. (2015). Do you remember the first time? Host plant preference in a moth is modulated by experiences during larval and adult mating.Ecology Letters, 18, 365-374.

    Schatz B., Proffit M., Kjellberg F., Hossaert-McKey M. (2013). Un réseau trophique complexe: le cas des figuiers associés à différentes communautés d’insectes.in : Des insectes et des plantes. Ed. Quae.

    Charpentier M.J.E., Barthes N., Proffit M., Bessière J.M., Buatois B., Grison C. (2012). Critical thinking in the chemical ecology of mammalian communication: Roadmap for future studies.Functional Ecology, 26, 769-774.

    Clavijo McCormick A.L., Karlsson M.F., Bosa C.F., Proffit M., Bengtsson M., Zuluaga M.V., Fukumoto T., Oehlschlager C., Cotes Prado A.L., Witzgall P. (2012). Mating disruption of Guatemalan Potato Moth Tecia solanivora by attractive and non-attractive pheromone blends.Journal of Chemical Ecology, 38, 63-70.

    Cornille A., Underhill J.G., Cruaud A., Hossaert-McKey M., Johnson S.D., Tolley K.A., Kjellberg F., van Noort S., Proffit M. (2012). Floral volatiles, pollinator sharing and diversification in the fig–wasp mutualism: insights from Ficus natalensis, and its two wasp pollinators (South Africa).Proceedings of the royal society-B, 279, 1731-1739.

    Soler C., Proffit M., Bessière J.M., Hossaert-McKey M., Schatz B. (2012). When males change their scents in presence of females, the case of the plant Ficus carica.Ecology letters, 15, 978-985.

    Witzgall P., Proffit M., Rozpedowska E., Becher PG., Andreadis S., Coracini M., Lindblom TU., Rearn LJ., Hagman A., Bengtsson M., Kurtzman CP., Piskur J., Knight A. (2012). "This is not an Apple"-yeast mutualism in codling moth.Journal of Chemical Ecology, 38, 949-957.

    Proffit M., Birgersson G., Bengtsson M., Witzgall P., Lima E. (2011). Attraction and oviposition of Tuta absoluta females (Lepidoptera: Gelechiidae) in response to tomato leave volatiles.Journal of Chemical Ecology, 37, 565-574.

    Soler C., Hossaert-McKey M., Buatois B., Bessière J.M., Schatz B., Proffit M. (2011). Geographic variation of floral scent in a highly specialized pollination mutualism.Phytochemistry, 72, 74-81.

    Hossaert-McKey M., Soler C., Schatz B., Proffit M. (2010). Floral scents: their roles in nursery pollination mutualisms.Chemoecology, 20, 75-88.

    Soler C., Proffit M., Chen C., Hossaert-McKey M. (2010). Private channels in plant-pollinator mutualisms. Plant Signaling & Behavior, 7, 893-895.

    Chen C., Song Q., Proffit M., Bessière J.M., Li Z., Hossaert-McKey M. (2009). Private channel: a single unusual compound assures specific pollinator attraction in Ficus semicordata.Functional Ecology, 23, 941-950.

    Proffit M., Chen C., Soler C., Bessière JM., Schatz B., Hossaert-McKey M. (2009). Can chemical signals responsible for mutualistic partner encounter promote the specific exploitation of nursery pollination mutualisms? – The case of figs and fig wasps.Entomologia Experimentalis et Applicata, 131, 46-57.

    Proffit M., Johnson S.D. (2009). Specificity of the signal emitted by figs to attract their pollinating wasps: Comparison of the volatile organic compounds produced by receptive syconia of Ficus sur and F. sycomorus in Southern Africa. South African Journal of Botany, 75, 771-777.

    Proffit M., Schatz B., Bessière J.M., Chen C., Soler C., Hossaert-McKey M. (2008). Signalling receptivity: comparison of the emission of volatile compounds of figs of Ficus hispida before, during and after the phase of receptivity to pollinators.Symbiosis 45, 15-24.

    Roy M., Dubois M.P., Proffit M., Vincenot L., Desmarais E., Selosse M.A. (2008). Evidence from population genetics that the ectomycorrhizal basidiomycete Laccaria amethystina is an actual multihost symbiont.Molecular Ecology 17, 2825-2838.

    Proffit M., Schatz B., Borges R.M., Hossaert-McKey M. (2007). Chemical mediation and niche partitioning in non-pollinating fig-wasp communities.Journal of Animal Ecology 76, 296-303.

    Schatz B., Proffit M., Rakhi B.V., Borges R.M., Hossaert-McKey M. (2006). Complex interactions on fig trees: ants capturing parasitic wasps as indirect mutualists of the fig-fig wasp interaction.Oikos 113, 344-352.

     

  • Directeur de recherche (DR IRD)

    86F73DF4 A6F1 4F8F ADD0 1E422F39C1E1 1 201 a

    CEFE/CNRS
    Campus du CNRS
    1919, route de Mende
    34293 Montpellier 5

    tél :  +33 (0)4 67 61 33 53
    fax : 33 (0)4 67 61 33 36

    Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.

    Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.

    Thèmes de recherche

    Mes travaux portent principalement sur la modélisation de la dynamique et du fonctionnement des écosystèmes végétaux naturels terrestres à différentes échelles.

  • altDirecteur d'Etude Emerite (EPHE)

    CEFE/CNRS
    Campus du CNRS
    1919, route de Mende
    34293 Montpellier 5

    tél : +33 4 67 61 33 43

    Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.
     
    Thématiques : Incendies ou brûlages,  dynamique du paysage, et faune : écologie des perturbations et conservation.