Post Doc

Benjamin Alric

Main Scientific interests

My research activities are in line with the understanding of ecosystem functioning through the study of community structuring. I am particularly interested in understanding the assembly rules structuring aquatic communities and identifying the underlying drivers taking into account both abiotic factors and biotic interactions. To carry out these research activities, I relied on the set-up and manipulation of large datasets acquired in different aquatic ecosystems (lentic, lotic, marine and sediment) as well as at different spatial and temporal scales. These datasets included biological data from different compartments of food web (viruses, prokaryotes and unicellular eukaryotes, zooplankton, benthic invertebrates, fish) and different types of data, e.g., molecular data, functional trait.

I am currently a post doc working on INDIGENE project, funding by l’Office Français pour la Biodiversité (OFB). This project aims

i) to test the relevance of metabarcoding data to study changes in marine microbial communities

and ii) to develop and test indicators that can be used within the framework of Water Framework Directive / Marine Strategy Framework Directive.



2019-2020     Postdoctoral Researcher (15 months), development of «multi-metrics and multi biological compartments indicators for ecological diagnostic of freshwater ecosystems across France» in LIEC, UMR CNRS 7360, Université de Lorraine, Metz, France. Funding: OFB. Advisor: P. Usseglio-Polatera

2017-2019     Postdoctoral Researcher (18 months), investigation of «the relationship between chemical contamination and its ecotoxicological effects assessed in a sentinel organism (Gammarus) and the disturbance at the community scale» in the Ecotoxicology laboratory, INRAe, UR RiverLy, Villeurbanne, France. Funding: OFB. Advisors: A. Chaumot, O. Geffard

2016-2017     Postdoctoral Researcher (18 months), study of «the effects of environmental and spatial forcing’s on the structure of fish and macroinvertebrate metacommunities in lotic ecosystems» in LEHNA, UMR CNRS 5023, Université Lyon1, France. Funding: CNRS-EDF. Advisor: S. Dolédec

2015                Postdoctoral Researcher (12 months), project on «biotic interactions between planktonic hosts and viruses in marine ecosystems: an in silico and in situ approach» in LBBE, UMR CNRS 5558, Université Lyon1, France. Funding: DECOVIR: ANR–12–BSV7–0009. Advisor: S. Dray

2012-2014     Teaching Assistant (24 months) in the Université Aix-Marseille, France

2008-2012     PhD Student (3 years and 6 months), investigation of «the influence of local forcing’s on the vulnerability and responses of lake pelagic food webs to climate change: a paleoecological approach based on cladocerans» in CARRTEL, UMR INRAe 0042, Thonon-les-Bains, France. Funding: IPER-RETRO: ANR–VMCS–008. Supervisors: J-M. Dorioz, M-E. Perga

2007-2008     Research Assistant (12 months), project on «the effect of the nature of organic matter on the physicochemical properties, and the genetic and functional diversity of epilithic river biofilm » in IC2MP, UMR CNRS 7285, Poitiers, France. Supervisor: B. Parinet

2007                Research Assistant (6 months), study of «the effect of global changes on the structure and functioning of microbial food webs in coastal ecosystems » in MARBEC, UMR CNRS 9190, Université Montpellier II, France. Supervisors: B. Mostajir, F. Vidussi



David G.M., P. López-García, D. Moreira, B. Alric, P. Deschamps, P. Bertolino, G. Restoux, E. Rochelle-Newall, E. Thébault, M. Simon, and L. Jardillier. Similar temporal patterns despite dissimilar prokaryotic and protist communities in small freshwater systems. Molecular Ecology. Under review

Alric B., O. Dezerald, A. Meyer, E. Billoir, C.P. Mondy, R. Coulaud, F. Larras, and P. Usseglio-Polatera. How recent diatom-, invertebrate- and fish-based tools can support the ecological diagnostic of rivers in a multi-pressure context: temporal trends over the past two decades in France. Science of the Total Environment. 762: 143915

Sarkis N., O. Geffard, Y. Souchon, A. Chandesris, M. Ferréol, L. Valette, B. Alric, A. François, J. Piffady, A. Chaumot, and B. Villeneuve. How to quantify the links between chemical contamination and pressures? A multiscale methodology combining structural equation modeling and active biomonitoring data. Science of the Total Environment, 735: 139492

Alric B., C.J.F. ter Braak, Y. Desdevises, H. Lebredonchel, and S. Dray. 2020. Investigating microbial associations from sequencing survey data with co-correspondence analysis. Molecular Ecology Resources, 20: 468-480

Alric B., O. Geffard, A. Chandesris, M. Ferréol, A. François, O. Perceval, J. Piffady, B. Villeneuve, and A. Chaumot. 2019. Multisubstance indicators based on caged Gammarus bioaccumulation reveal the influence of chemical contamination on stream macroinvertebrate abundances across France. Environmental Science and Technology, 53: 5906-5915

Alric B., M. Möst, I. Domaizon, C. Pignol, P. Spaak, and M-E. Perga. 2016. Local human pressures influence gene flows in a hybridizing Daphnia species complex. Journal of Evolutionary Biology, 29: 720-735

Perga M-E., S.C. Maberly, J-P. Jenny, B. Alric, C. Pignol, and E. Naffrechoux. A century of human-driven changes in the carbon dioxide concentration of lakes. 2016. Global Biogeochemical Cycles, 30: 93-104

Savichtcheva O., D. Debroas, M-E. Perga, F. Arnaud, C. Villar, E. Lyautey, A. Kirkham, C. Chardon, B. Alric, and I. Domaizon. 2015. Effects of nutrients and warming on Planktothrix dynamics and diversity: a paleolimnological view based on sedimentary DNA and RNA. Freshwater Biology, 60: 31-49

Perga M-E., V. Frossard, J-P. Jenny, B. Alric, F. Arnaud, V. Berthon, J. Black, D. Debroas, I. Domaizon, C. Guiget-Covex, A. Kirkham, A. Magny, M. Manca, A. Marchetto, L. Millet, C. Paillès, C. Pignol, J. Poulenard, J.L. Reyss, F. Rimet, O. Savitchtcheva, P. Sabatier, F. Sylvestre, and V. Verneaux. 2015. High-resolution paleolimnology opens new management perspectives for lakes adaptation to climate change. Frontiers in Ecology and Evolution, 3: Article72

Jenny J-P., F. Arnaud, B. Alric, J-M. Dorioz, P. Sabatier, M. Meybeck, and M-E. Perga. 2014. Inherited hypoxia: A new challenge for reoligotrophicated lakes under global warming. Global Biogeochemical Cycles, 28: 1413-1423

Berthon V., B. Alric, F. Rimet, and M-E. Perga. 2014. Sensitivity and responses of diatoms to climate warming in lake heavily influenced by humans. Freshwater Biology, 59: 1755-1767

Domaizon I., O. Savichtcheva, D. Debroas, C. Villar, C. Pignol, F. Arnaud, B. Alric, and M-E. Perga. 2013. DNA from lake sediments reveals the long-term dynamics and diversity of Synechococcus assemblages. Biogeosciences, 10: 3817-3838

Alric B., J-P. Jenny, V. Berthon, F. Arnaud, C. Pignol, J-L. Reyss, P. Sabatier, and M-E. Perga. 2013. Local forcings affect lake zooplankton vulnerability and response to climate warming. Ecology, 94: 2767-2780

Alric B., and M-E. Perga. 2011. Effects of production, sedimentation and taphonomic processes on the composition and size structure of sedimenting cladoceran remains in a large deep subalpine lake: paleo-ecological implications. Hydrobiologia, 676: 101-116