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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)

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 :

- LEFLAIVE J., VELTEN V., FERRIOL J., LAMY A., TEN-HAGE L, BEC A. & DANGER M. in press
Community structure and nutrient level control the tolerance of autotrophic biofilm to silver contamination. Environmental Science and Pollution Research

- ARCE FUNCK J., BEC A., PERRIÈRE F., FELTEN V., GUÉROLD F. & DANGER M. (2014)
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.