Maître de Conférences

 Université Paul-Valéry Montpellier 3

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Soil(s) Fictions : http://cargocollective.com/soilfictions/About

Résumé :
Diplômé d’un doctorat en écologie, le cherche à mieux comprendre les effets qu’induisent les modifications de l’environnement à différentes échelles – du paysage à la parcelle - sur les communautés, les populations et les traits des invertébrés du sol. J’analyse les effets des changements d’occupation du sol, comme l’urbanisation, sur les communautés et les interactions. Je m’intéresse fortement aux problématiques d’agroécologie, dans les paysages ruraux mais aussi urbains.J’ai des compétences fortes dans l’intégration de la dynamique spatiale des processus, dans la détermination d’invertébrés. je fais partie d’un collectif « art-science » qui vise à sensibiliser le public à la protection des sols.

Mots-clés :
Ecologie du paysage ; écologie des sols ; invertébrés des sols ; systèmes anthropisés ; dispersion ; agro-écologie ; régulation biologique

Directeur de recherche CNRS

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

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A l’interface entre écologie fonctionnelle et écologie des communautés, je cherche à comprendre les causes de variation de la biodiversité, aussi bien à l’échelle locale que continentale, et l’effet de changements de la biodiversité sur la dynamique et le fonctionnement des écosystèmes.

CNRS Researcher

Address:

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

Phone : +33/0 4 67 61 32 60

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ou This email address is being protected from spambots. You need JavaScript enabled to view it.

I study visual communication at various scales: color perception, role of coloration in communication/camouflage, informative content of signals, evolution of signal design at large evolutionary scale. At the frontier between biology and physics, I study complex optical phenomena in birds and butterflies.

Directeur de Recherche (CNRS)

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

tél : +33 4 67 61 32 42
fax : +33 4 67 61 33 36

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Thèmes de recherche

Mes travaux portent sur la caractérisation de la diversité fonctionnelle des végétaux, abordée essentiellement par l’étude de leurs traits fonctionnels.

Post-doctorante

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PhD in evolutionary biology on "Origin and functions of iridescent colours in hummingbirds"

Docteur ès Sciences, Professeur émérite

Tél :  +33 (0)4 67 14 23 16
Fax : +33 (0)4 67 14 24 59

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This email address is being protected from spambots. You need JavaScript enabled to view it.

Université Paul-Valéry Montpellier 3, Bâtiment Jean-Henri Fabre, route de Mende, 34199 Montpellier cedex 5

Areas of Expertise:

- Ecology and biogeography of dung beetles (Coleoptera: Scarabaeidae & Geotrupidae) in Mediterranean, tropical and mountain ecosystems. Structure of assemblages, effect of landscape structure on the spatial distribution of Mediterranean dung beetle diversity. Studies on the degradation of animal dung under various anthropogenic constraints.
- Non-target effects to dung-dwelling insects of faecal residues in dung of cattle treated with endectocides. Development and standardization of test methods to evaluate the effects of veterinary medical products. Ecotoxicology. Conservation measures.
- Forest management and control of white grubs (Coleoptera: Melolonthidae) in Morocco

Current Projects:

- Participation in the development of The IUCN Red List of Threatened Species (Mediterranean dung beetles).
- Non-target effects of parasiticides in cattle dung
- Biology and ecology of dung-breeding beetles (Scarabaeidae)

CEFE- RDC, Aile B, bureau 3

33(0)467633265

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RESEARCH

My research is framed around a comparative exploration of the role of multiple environmental drivers in shaping species distributions and diversity at multiple spatial and temporal scales. Most of my research is structured on the combined use of ecoinformatics methods (statistical analysis of large data sets) and naturalist expertise to understand empirical patterns of community composition in space and time. My main active axes of research include :  

- functional biogeography of seabirds in the Southern ocean. I try to explain and predict the composition of seabird assemblages with spatial models calibrated with environmental factors, trophic interactions and species traits. The project relies on a large-scale bird counts protocol from ships and statistical model of multiple data types. See the C-BIRDS project and thesis(offer valid until 07/2024).

-  understanding spatial patterns of vertebrates distributions and assemblage compositions. Relying on various opportunistic or protocoled data sources at multiple spatial scales, I investigate the determinants of spatial patterns in vertebrate distributions and assemblage composition through spatial models based on proxies of historical and contemporary processes. See for instance he MALPOLONdatabase.

- Ecoacoustics and community ecology. Several active projects focus on the relationship between bird community composition and the characteristics of soundscapes at multiple spatial and temporal scales, in order to explore the acoustic environment in which species interact and its changes with current land-use and climatic dynamics. See the ACOUCENEproject (2022 - 2025, FRB/CESAB)

COLLABORATIVE WORK 

Most of my interactions with biodiversity stakeholders are focused on data analysis to answer questions relative to the monitoring of human impacts on biodiversity at a regional or landscape scale.

- Ecological data analysis. I am involved in initiatives to foster interactions between scientific and non scientific stakeholders with respect to data-based ecological monitoring and expertise. See the website of the CISSTATnetwork. 

- Analysis of land use influences on common bird assemblages in southern France. I investigate the impact of land use and habitats on the temporal dynamics of local bird assemblages with opportunistic and protocoled data (collaborations with the Ligue pour la Protection des Oiseaux - PACA). 

- Faunistic road casualties. I work with the Ligue pour la Protection des Oiseaux and the CEREMA to explain and predict spatial patterns in road casualites. We exploit jointly multiple sources of protocoled, non-protocoled and citizen science data to identify mortality hotspots and explanatory factors, with the final aim to inform public policies on the mitigation of traffic impact on vertebrates. See the final report of the COCPITT project (2020-2023).

 - Interacting imprints of climate change and land use on biodiversity. Using multiple taxa and scales, I investigate how species' responses to historical and present land use change interact with their responses to climate change. See the LANDBIO project (2022 - 2023, OFB - french ministry of ecology)

TEACHING

Most of my teaching activity is embedded within the program of the Ecole Pratique des Hautes Etudes.

- Data analysis for ecologist : a three-weeks course dedicated to biodiversity stakeholders, framed on the practical use of statistical methods and the R software in ecological monitoring. 

- Environmental law and policy : I drive a one-week course to introduce environmental public policies to scientific ecologists, involving speakers from various authorities and decision levels and practical training to improve students' written and verbal interactions with non-scientific stakeholders.

- Methods for ecological monitoring : a two-weeks course with Aurélien Besnard, mainly dedicated to master students and biodiversity stakeholders, to improve their skills and critical thinking in advanced numerical methods for ecology, including species distribution modeling, population dynamics, sampling design and analysis of diversity indices.

- Environmental changes and ecological science :I contribute to several courses on global changes and environmental monitoring. My teaching is focused on the interactions between science and society through several lenses including epistemology and governance / spatial planning.

Professeur(Université Paul-Valéry Montpellier III)

Tél : +33 (0) 4 67 14 23 15

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Chargée de recherche (CR1) 

Responsable de l’équipe BIOFLUX

Campus du CNRS

1919, route de Mende
34293 Montpellier 5
tel:+33 (0)4 67 61 32 43
fax:+33 (0)4 67 41 33 36

e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Mots clés : 

Macroinvertébrés du sol, Diversité, Rôle fonctionnel (Structuration des sols, Décomposition des litières), Perturbations anthropiques et changements globaux, Traits biologiques, écologiques et fonctionnels

Post-doctorate researcher in Ecology and Agriculture

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Research questions

How do different facets of biodiversity affect the functioning and stability of (agro)ecosystems?

What are the roles of plant-plant interactions and functional traits in determining (agro)ecosystem functioning?

What are the drivers of the global distribution of crop species diversity ?

Can plant functional traits predict the multifunctionality of (agro)ecosystems ?

To address these questions, I assemble concepts, theories and tools from functional ecology, biogeography, agronomy and quantitative ecology. I mainly focus on cultivated ecosystems and their associated plant communities, including crop and weed species. My researches cover a range of spatio-temporal scales, from very local (e.g. plant-plant interactions) to global (e.g. global distribution of crop) and pluriannual (e.g. long-term ecosystem stability) scales.

Publications

Mahaut, L., Violle, C., Shihan, A., Pélissier, R., Morel, J.-B., de Tombeur, F., Rahajaharilaza, K., Fabre, D., Luquet, D., Hartley, S., Thorne, S. J., Ballini, E., & Fort, F. (2023). Beyond trait distances: Functional distinctiveness captures the outcome of plant competition. Functional Ecology, 37(9), 2399–2412. https://doi.org/10.1111/1365-2435.14397

Munoz, F., Klausmeier, C. A., Gaüzère, P., Kandlikar, G., Litchman, E., Mouquet, N., Ostling, A., Thuiller, W., Algar, A. C., Auber, A., Cadotte, M. W., Delalandre, L., Denelle, P., Enquist, B. J., Fortunel, C., Grenié, M., Loiseau, N., Mahaut, L., Maire, A., Mouillot, D., Violle, C. & Kraft, N. J. B. (2023). The ecological causes of functional distinctiveness in communities. Ecology Letters, 26(8), 1452–1465. https://doi.org/10.1111/ele.14265

Renard, D., Mahaut, L., & Noack, F. (2023). Crop diversity buffers the impact of droughts and high temperatures on food production. Environmental Research Letters, 18(4), 045002. https://doi.org/10.1088/1748-9326/acc2d6

Mahaut, L.,Choler, P., Denelle, P., Garnier, E., Thuiller, W., Kattge, J., Lemauviel-Lavenant, S., Lavorel, S., Munoz, F., Renard, D., Serra-Diaz, J. M., Viovy, N., & Violle, C. (2023). Trade-offs and synergies between ecosystem productivity and stability in temperate grasslands. Global Ecology and Biogeography, 32(4), 561–572. https://doi.org/10.1111/geb.13645

de Tombeur, F., Pélissier, R., Shihan, A., Rahajaharilaza, K., Fort, F., Mahaut, L., Lemoine, T., Thorne, S. J., Hartley, S. E., Luquet, D., Fabre, D., Lambers, H., Morel, J.-B., Ballini, E., & Violle, C. (2023). Growth-defence trade-off in rice: Fast-growing and acquisitive genotypes have lower expression of genes involved in immunity. Journal of Experimental Botany, 74(10), 3094–3103. https://doi.org/10.1093/jxb/erad071

Mahaut L., Pironon S., Barnagaud J.Y., Bretagnolle F., Khoury C.K., Mehrabi Z., Milla R., Phillips C., Rieseberg L.H., Violle C., Renard D. (2022). Matches and mismatches between the global distribution of major food crops and climate suitability. Proceedings of the Royal Soeciety-B.,289 (1983) https://doi.org/10.1098/rspb.2022.1542

Mahaut, L., Violle, C., & Renard, D. (2021). Complementary mechanisms stabilize national food production. Scientific Reports, 11(1), 4922. https://doi.org/10.1038/s41598-021-84272-z

Mahaut, L., Cheptou, P.-O., Fried, G., Munoz, F., Storkey, J., Vasseur, F., Violle, C., & Bretagnolle, F. (2020). Weeds: Against the Rules? Trends in Plant Science, 25(11), 1107–1116. https://doi.org/10.1016/j.tplants.2020.05.013

Mahaut, L., Fort, F., Violle, C., & Freschet, G. T. (2020). Multiple facets of diversity effects on plant productivity: Species richness, functional diversity, species identity and intraspecific competition. Functional Ecology, 34(1), 287–298. https://doi.org/10.1111/1365-2435.13473

Munoz, F., Fried, G., Armengot, L., Bourgeois, B., Bretagnolle, V., Chadoeuf, J., Mahaut, L., Plumejeaud, C., Storkey, J., Violle, C., & Gaba, S. (2020). Ecological Specialization and Rarity of Arable Weeds: Insights from a Comprehensive Survey in France. Plants-Basel, 9(7). https://doi.org/10.3390/plants9070824

Delphine Renard & Lucie Mahaut (2019). De nouveaux éléments en faveur de la diversification (New evidence in favor of crop diversification). Perspectives Agricoles

Mahaut L., Gaba S., Fried G., 2019. A functional diversity approach of crop sequences reveals that weed diversity and abundance show different responses to environmental variability. Journal of Applied Ecology. 56 (6): 1400-1409. doi: 10.1111/1365-2664.13389

Bourgeois B., Munoz, F., Fried, G., Mahaut, L., Armengot, L., Denelle, P., Storkey, J., Gaba, S., Violle, C., 2019. What makes a weed a weed? A large-scale evaluation of arable weeds through a functional lens. American Journal of Botany.106 (1): 90-100. doi: 10.1002/ajb2.1213

Fried G., Carboni M., Mahaut L., Violle C., 2019. Functional traits modulate plant community responses to alien plant invasion. Perspectives in Plant Ecology Evolution and Systematics. 37: 53-63. doi: 10.1016/j.ppees.2019.02.003

Mahaut L.,Fried G., Gaba S. 2018. Patch dynamics and temporal dispersal partly shape annual plant communities in ephemeral habitat patches. Oikos.127: 147-159. doi: 10.1111/oik.04415

Fried G., Mahaut L., Pinston A., Carboni M., 2018.Abiotic constraints and biotic resistance control the establishment success and abundance of invasive Humulus japonicus in riparian habitats. Biological Invasions.20 (2): 315-331. doi: 10.1007/s10530-017-1533-y

Maitre de conférence (EPHE)

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

tél : +33 4 67 61 32 61
fax: +33 4 67 41 21 38

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Mots clés : Conservation, Biogéographie, région méditerranéenne, Reptiles, Ecologie des populations, Phylogéographie.

Researcher CNRS

" Movement, Abundance, Distribution" (MAD) Team Leader

CEFE

1919, route de Mende
34293 Montpellier cedex 5
Tél : +33/0 4 67 61 33 02

Office 311, 3rd floor

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Directeur de Recherche / Senior scientist

I study the evolution of adaptive diversity, using colour patterns in butterflies as a model. In my group, we integrate many different approaches, including ecology, genetics, and modelling, to try and untangle how multiple factors influence the evolution and maintenance of diversity and polymorphisms.

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 Doctorante - CEFE/ Univ. Franche-Comté

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0009-0009-3003-5080

I am a PhD candidate studying scavenger communities and their responses to anthropic pressures. To do so I focus on different levels of organisation. More precisely, I study how climate change modified the repartition of the living prey and feeding events of a facultative scavenger, spotted hyaena (Crocuta crocuta); how increased abundance of elephant carrion may have impacted predator prey coupling of the population dynamics of the spotted hyaena and its usual linving preys ; and how land-use and forest loss impact the structure of scavenger communities and scavenging process.