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Accueil > Français > Annuaire > Permanents > BEC Alexandre

Alexandre BEC

Maître de conférences HDR

publié le , mis à jour le

Groupe de Recherche en Ecologie Trophique : rejoignez-nous !

Contact :

LMGE UMR CNRS 6023/GRET GDR CNRS 3716

Campus Universitaire des Cézeaux
1 Impasse Amélie Murat
TSA 60026 CS 60026
63178 AUBIERE Cedex
FRANCE

Tél : 33 (0)4 73 40 74 84

Fax : 33 (0)4 73 40 76 70

Alexandre.BEC@uca.fr

Education :

- (2003) PhD in Biology of Populations and Ecology, Univ. Savoie Chambéry, France

- (2012) HDR, Univ Blaise Pascal, France

main professional experiences :

Since 2005 Teaching-scientist (MCF) Université Blaise Pascal

2003-2004 Post-doctoral position, Limnological Institute University of Constance, Germany

Research Interests :

- Biodiversity and ecosystem functioning

- Energy and matter flows in ecosystems

- key words :

food quality, lipids, microbial food webs, protists, zooplankton, fatty acids, compound-specific stable isotope analyses.

Supervisor/co-supervisor :

Phd students :
- Apostolos Manuel Koussoroplis (2006-2010)
- Hélène Masclaux (2007-2011)
- Thomas Ruiz (2016-2019)

Publications :

Book chapter :

- DESVILETTES, C. & BEC, A (2009).

Formation and transfer of fatty acids in aquatic microbial food webs – role of heterotrophic protists In : Lipids in Aquatic Ecosystems. Arts, M. T., Brett, M., and Kainz, M. (eds.). Springer, New York pp25-42

Articles in journals :

- MAJDI N., HETTE-TRONQUART N., AUCLAIR E., BEC A., CHOUVELON T., COGNIE B., DANGER M., DECOTTIGNIES P., DESSIER A., DESVILLETTES C., DUBOIS S., DUPUY C., FRITSCH C., GAUCHEREL C., HEDDE M., JABOT F., LEFEBVRE S., MARZLOFF M., PEY B., PEYRARD N., POWOLNY T., SABBADIN R., THEBAULT E. & PERGA M. (in press) There’s no harm in having too much : A comprehensive toolbox of methods in trophic ecology. Food webs

- RUIZ T., BEC A., DANGER M., KOUSSOROPLIS A.M.K., AGUER J-P., MOREL J-P & MOREL-DESROSIERS N. (sous presse) A microcalorimetric approach for investigating stoichiometric constraints on the standard metabolic rate of a small invertebrate. Ecology Letters

- PERGA M., DANGER M., DUBOIS S., FRITCH C., GAUCHEREL C., HUBAS C., JABOT F., LACROIX G., LEFEBVRE S., MARMONIER P. & BEC A. (2018) Forces, failles et opportunités de la recherche française en écologie trophique, Strengths, weaknesses, and opportunities of French research in trophic ecology Comptes rendus Biologies doi.org/10.1016/j.crvi.2018.05.001

- DENOUX C., MARTIN-CREUZBURG D., KOUSSOROPLIS A.M., PERRIERE F., DESVILLETTES C., BOURDIER G. & BEC A. (2017) Phospholipid-bound eicosapentaenoic acid (EPA) is more effective in supporting Daphnia fecundity than free EPA. Journal of Plankton Research 39 : 843-848

- ROLLIN M., COULAUD R., DANGER M., SOHM B., FLAYAC J., BEC A., CHAUMOT A., GEFFARD O. & FELTEN V. (2017) Additive effect of calcium depletion and low resource quality on Gammarus fossarum (Crustacea, Amphipoda) life history traits. Environ Sci Pollut Res

- KAGAMI M., MOTOKI Y., MASCLAUX, H., & BEC, A., (2017) –Carbon and nutrients from indigestible pollen are transferred to zooplankton by chytrid fungi. Freshwater Biology.62 : 954-964.

- CRENIER C., ARCE-FUNCK J., BEC A., BILLOIR E. , PERRIÈRE F., LEFLAIVE J., GUÉROLD F., FELTEN V. & DANGER M. (2017) Minor food sources can play a major role in secondary production in detritus-based ecosystems Freshwater Biology, 62:1155-1167.

- LEFLAIVE J., VELTEN V., FERRIOL J., LAMY A., TEN-HAGE L, BEC A. & DANGER M. (2015)
Community structure and nutrient level control the tolerance of autotrophic biofilm to silver contamination. Environmental Science and Pollution Research22:13739-13752.

- ARCE FUNCK J., BEC A., PERRIÈRE F., FELTEN V., GUÉROLD F. & DANGER M. (2015)
Aquatic hyphomycetes : a potential source of polyunsaturated fatty acids in detritus-based streams ? Fungal ecology

- MASCLAUX, H., BOURDIER, G., JOUVE, L., DUFFAUD E & BEC, A., (2014) Temporal changes in essential fatty acid availability in different food sources in the littoral macrophyte zone. Hydrobiologia, 736, 127-137.

- MASCLAUX, H., BOURDIER, G., RIERA, P., KAINZ, M. J., JOUVE, L., DUFFAUD, E. & BEC, A., (2014)
Ressources partitioning among cladocerans in a littoral macrophyte zone : implications for the tranfer of essential compounds. Aquatic Sciences , 76, 337-350.

- SAUVANET, J., BOURDIER, G., JOUVE, L., BEC, A., & DESVILETTES, C.,(in press)
Feeding of pike larvae (Esox lucius L.) in an alluvial river backwater : fatty acids as markers of two organic matter flows Fundamental and Applied Limnology,183, 337-350.

- MASCLAUX, H., BOURDIER, G., RIERA, P., KAINZ, M. J., JOUVE, L., DUFFAUD, E. & BEC, A., (2013)
Ressources partitioning among cladocerans in a littoral macrophyte zone : implications for the tranfer of essential compounds. Aquatic Sciences , DOI 10.1007/s00027-013-0314-7

- MASCLAUX, H., PERGA, M. E., KAGAMI M., DESVILETTES, C., BOURDIER, G. & BEC, A., (2013)
How pollen enters freshwater food webs. Limnology & Oceanography , 58, 1185-1195.

- MASCLAUX, H., BEC, A. & BOURDIER, G. (2012)
Trophic partitioning among three littoral microcrustaceans : relative importance of periphyton as food resource. Journal of Limnology,71, 261-266.

- MASCLAUX, H., BEC, A., KAINZ, M., DESVILETTES, C., PERRIERE, F. & BOURDIER, G. (2012)
Accumulation and bioconversion of polyunsaturated fatty acids by cladocerans : effects of taxonomy,temperature and food sources. Freshwater Biology, 57,696-703.

- BEC, A., PERGA, M. E., KOUSSOROPLIS, A. M., BARDOUX, G., DESVILETTES, C., BOURDIER, G. & MARRIOTI, A. (2011)
Assessing the reliability of fatty acids- specific stable isotope analysis for trophic studies Methods in Ecology and Evolution,2,651-659.

- MASCLAUX, H., BEC, A., KAGAMI M., PERGA, M. E.,SIMENGANDO T., DESVILETTES, C., & BOURDIER, G. (2011)
Food quality of anemophilous plant pollen for zooplankton. Limnology & Oceanography, 56, 939-946.

- KOUSSOROPLIS, A. M., BEC, A., PERGA, M. E., KOUTRAKIS, M., DESVILETTES, C. & BOURDIER, G. (2011)
Transfer of fatty acids in food web of a mediterranean coastal lagoon:evidence for high ARA retention in fish. Estuarine, Coastal and Shelf Science 91,450-461

- BEC, A., PERGA, M. E., DESVILETTES, C. & BOURDIER, G. (2010)
How well can the fatty acid content of lake seston be predicted from its taxonomic composition ? Freshwater Biology 55:1958-1972

- BEC, A., MARTIN-CREUZBURG, D. & VON ELERT, E. (2010).
Fatty acid composition of the heterotrophic nanoflagellate Paraphysomonas sp. : influence of diet and de novo synthesis. Aquatic Biology 9:107-112

- DESCROIX, A., BEC, A., BOURDIER, G., SARGOS, D., SAUVANET, J., MISON, B. & DESVILETTES, C. (2010)
Fatty acids as biomarkers to indicate main carbon sources of four major invertebrate families in a large River (the Allier,France). Fundamental and Applied Limnology, 177,39-55.

- DESCROIX, A., DESVILETTES, C., BEC, A., MARTIN, P. & BOURDIER, G. (2010)
Impact of macroinvertebrate diet on growth and fatty acid profiles of restocked 0+ Atlantic salmon (Salmo salar) parr from a large European river (the Allier) Canadian Journal of Fisheries and Aquatic Sciences. 67:659-672

- LEFÈVRE, E., JOBARD, M., VENISSE, J. S., BEC, A., KAGAMI, M., AMBLARD, C. & SIME-NGANDO, T.(2010)
Development of a Real-Time PCR assay for quantitative assessment of uncultured freshwater zoosporic fungi. Journal of Microbiology methods 81:69-76

- KOUSSOROPLIS, A. M., BEC, A., PERGA, M. E., KOUTRAKIS, M., DESVILETTES, C. & BOURDIER, G. (2010).
Nutritional importance of minor dietary sources for settling leaping grey mullet (Liza saliens) : insights form fatty acid δ13C analysis. Marine Ecology Progress Series 404:207-217

- MASCLAUX, H., BEC, A., KAINZ, M., DESVILETTES, C., JOUVE, L. & BOURDIER, G. (2009).
Combined effects of food quality and temperature on somatic growth and reproduction of two freshwater cladocerans. Limnology & Oceanography 54:1323-1332

- DESCROIX, A., DESVILETTES, C., MARTIN, P., ANNEVILLE, O., BEC, A. & BOURDIER, G (2009).
Feeding, growth and nutritional status of restocked salmon parr along the longitudinal gradient of a large european river : the Allier. Ecology of Freshwater Fish 18:282-296

- PERGA, M. E., BEC, A. & ANNEVILLE, O. (2009).
Origins of carbon sustaining the growth of whitefish early larval stages in lake Annecy : Insights from fatty acid biomarkers. Journal of Fish Biology 74:2-17.

- KOUSSOROPLIS, A. M., LEMARCHAND, C., BEC, A., DESVILETTES, C., AMBLARD, C., FOURNIER, C., BERNY, P. & BOURDIER, G.(2008).
From Aquatic to Terrestrial Food Webs : Decrease of the Docosahexaenoic Acid/Linoleic Acid Ratio. Lipids 43:461-466.

- MARTIN-CREUZBURG, D., BEC, A., & VON ELERT, E. (2006).
Supplementation with sterols improves food quality of a ciliate for Daphnia magna. Protist 157:477-486|

- BEC, A., MARTIN-CREUZBURG, D. & VON ELERT, E. (2006).
Trophic upgrading of autotrophic picoplankton by the heterotrophic flagellate Paraphysomonas sp. Limnology & Oceanography 51:1699-1707.

- MARTIN-CREUZBURG, D., BEC, A. & VON ELERT, E. (2005).
Trophic upgrading of picocyanobacterial carbon by ciliates for nutrition of Daphnia magna. Aquatic Microbial Ecology 41:271-280.

- BEC, A., DESVILETTES, C., VERA, A., LEMARCHAND, C., FONTVIEILLE, D. & BOURDIER, G(2003).
Nutritional quality of a freshwater heterotrophic flagellate : trophic upgrading of its microalgal diet for Daphnia hyalina. Aquatic Microbial Ecology 32 : 203-207.

- BEC, A., DESVILETTES, C., VERA, A., FONTVIEILLE, D. & BOURDIER, G.(2003).
Nutritional value of different food sources for the benthic Daphnidae Simocephalus vetulus : role of fatty acids. Archiv. Hydrobiology 156 : 145-163.

- VERA, A., DESVILETTES, C., BEC, A. & BOURDIER, G(2001).
Fatty acid composition of freshwater heterotrophic flagellates : an experimental study. Aquatic Microbial Ecology 25 : 271-279.