Biostatistiques et Biologie des Populations

Pierre-Olivier CHEPTOU

Directeur de Recherche au CNRS (DR2)

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

tél : +33 4 67 61 33 07
fax: +33 4 67 41 21 38

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Thématique de recherche

 

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Je développe un travail d’écologie évolutive qui vise à analyser les traits d'histoire de vie chez les plantes (systèmes de reproduction, traits floraux, dispersion). L’accent est mis l'accent sur l'importance de la dynamique écologique (dynamique des métapopulations, démographie) comme un processus de sélection dans l'évolution contemporaine. Mon approche combine (1) Analyse des patrons d’adaptation et méthodes d’inférence des traits d’histoires de vie dans les métapopulations de plantes, en milieu naturel (2) élaboration de modèles formels en écologie évolutive (3) expérimentations et tests d’hypothèses en conditions contrôlées.

 

Most-clés :Métapopulation-traits d'histoire de vie-Ecologie évolutive théorique-dispersion-systèmes de reproduction-plasticité.

 

Cursus

 

2009 Habilitation à diriger les recherches,Université Montpellier 2. pdf

2006: CR1. UMR 5175 CEFE, Montpellier

2002: Recrutement CNRS, CR2 dans l’UMR 5175 CEFE, Montpellier

2001-2002 : Séjour post-doctoral . McGill University, Montreal (Canada)

1997-2000 : Thèse de Doctorat, Université Montpellier 2. pdf

 

alt Deciding editor 2004-2008

 

 

Programmes en cours

1-Dormir pour persister (Projet "chercheurs d'avenir (POC)" LR, 2012-15)

2-Adaptation des plantes au déclin des pollinisateurs (Projet FRB (POC) 2010-13)

3-ANR Trameverte (2009-13)

4-Ecologie Evolutive théorique : evolution conjointe, plasticité.

 

Publications

1-Cheptou P.-O., Imbert E., Lepart J. & Escarré J. 2000. Effects of competition on lifetime estimates of inbreeding depression in the outcrossing plant Crepis sancta (Asteraceae). Journal of Evolutionary Biology 13 (3): 522-31.pdf

2-Cheptou P.O., Berger A., Blanchard A., Collin C. & Escarré J. 2000. The effect of drought stress on inbreeding depression in four populations of the Mediterranean outcrossing plant Crepis sancta (Asteraceae) Heredity 85 (3): 294-302. pdf

3-Cheptou P.-O., Lepart J. & Escarré J. 2001. Inbreeding depression and intraspecific competition in Crepis sancta (Asteraceae): evidence for frequency dependent variation. American Journal of Botany 88 (8): 1424-1429.pdf

4-Cheptou P.-O. & Mathias A. 2001. Can varying inbreeding depression select for intermediary selfing rate? The American Naturalist 157(4): 361-373.pdf

5-Cheptou P.-O., Lepart J. & Escarré J. 2001. Differential outcrossing rates in dispersing and non-dispersing achenes in the heterocarpic plant Crepis sancta (Asteraceae). Evolutionary Ecology 15(1): 1-13. 5. pdf

6-Cheptou P.-O. & Dieckmann U. 2002 The evolution of self-fertilization in density-regulated populations Proc R. Soc. L. B. 269, 1177-1186.pdf

7-Cheptou P.-O. & Schoen D. J. 2002 The cost of fluctuating inbreeding depression. Evolution 56(5): 1059-1062.pdf

8-Cheptou P.-O., Lepart J. & Escarré J. 2002 Mating system variation along a successional gradient in the allogamous and colonizing plant Crepis sancta (Asteraceae). Journal of Evolutionary Biology 15 (5): 753-62. pdf

9-Dubois S., Cheptou P.-O., Petit C., Meerts P., Poncelet M., Vekemans X., Lefebvre C. and Eascarré J. 2003 Genetic Structure and mating systems of metallicolous and non-metalicollous populations of Thlaspi caerulescens. New Phytologist 157: 633-641.pdf

10-Cheptou P.-O. & Schoen D. J. 2003 Frequency-dependant inbreeding depression in Amsinckia. The American Naturalist. 162(6): 744-753. pdf

11-Cheptou P.-O. 2004 Allee effect and self-fertilization in hermaphrodites: Reproductive assurance in demographically stable populations Evolution 58(12): 2613-2621. pdf

12-Genton B. P.M. Kotanen, P.-O. Cheptou, C. Adolphe and J.A. Shykoff. 2005 Enemy release but no evolutionary loss of defence during ragweed invasion of France: an inter-continental reciprocal transplant experiment. Oecologia: 146: 404-414.

pdf

13-Cheptou P.-O. 2006 The ecology of inbreeding depression Heredity 96(2), 110. pdf

14-Cheptou P.-O., Avendano L. 2006. Pollination processes and the Allee effect in highly fragmented populations: consequences for the mating system in urban environments. New Phytologist 172 (4) 774-783. pdf

15-Dubois, M.-P. , Dornier A., Jarne, P. and Cheptou P.-O. 2007 Nine polymorphic microsatellite markers in Crepis sancta (Asteraceae) Molecular Ecology Notes 7 (4): 681-683. pdf

16-Cheptou P.-O., Schoen D.J. (2007). Combining population genetics and demographical approaches in evolutionary studies of plant mating systems. Oikos: Vol. 116 (2) 271-279. pdf

17-Munoz, F., Cheptou, P.-O. & Kjellberg, F. 2007 Spectral analysis of simulated species distribution maps provides insights into metapopulation dynamics Ecological Modelling 205 (3-4): 314-322 JUL 24 2007. pdf

18-Cheptou P.-O., 2007 Why should mating system biologists be demographers? Trends in Ecology and Evolution 22(11) 562-563. pdf

19-Cheptou, P.-O., Carrue, O., Rouifed, S. and Cantarel, A. 2008 Rapid evolution of seed dispersal in an urban environment in the weed Crepis sancta. Proceedings of the National Academy of Sciences USA 105, 3796-3799. pdf

→Article sélectionné par “Faculty of 1000 Biology”, commenté/résumé dans Science, Nature, Nature Digest, New scientist, Scientific American, la recherche et dans la presse quotidienne)

20-Dornier, A. Munoz, F. & Cheptou P.-O. 2008 Allee effect and self-fertilization in hermaphrodites: Reproductive assurance in a structured metapopulation Evolution 62 (10), 2558-2569. pdf

21-Andrieu, E., Dornier, A., Rouifed, S., Schatz, B., Cheptou, P.-O. 2009 The town Crepis and the country Crepis:how does fragmentation affect a plant-pollinator interaction? Acta Oecologica 35: 1-7. pdf

22-Johnston M.O., Porcher, E., Cheptou, P.-O., Eckert, C.G., Elle, E.; Geber, M.A.Susan Kalisz, Kelly, J.K., Moeller, D.A., Vallejo-Marin, M., Win, A. 2009 Correlations among fertility components can maintain mixed mating in plants. The American Naturalist 173(1), 1–11.pdf

23-Coreau A. Pinay, G. Thompson, J.D. Cheptou, P.-O. and L. Mermet 2009 The rise of research on futures in ecology: rebalancing scenarios and predictions Ecology Letters 12: 1277–1286. pdf

→ Article sélectionné par “Faculty of 1000 Biology”.

24-Porcher, E*., J.K. Kelly*, P.-O. Cheptou*, C.G. Eckert, Johnston, M.O., S. Kalisz. 2009 The genetic consequences of fluctuating inbreeding depression and the evolution of plant mating system Journal of Evolutionary Biology 22(4) 708-717. (* equal contribution) pdf

25-Cheptou, P.-O. & F. Massol 2009 Pollination fluctuations drive evolutionary syndromes linking dispersal and mating system. The American Naturalist 174 (1) 46-55. pdf

→Choix de l’éditeur de la revue Science : Evolution: Going Farther with Sex Science Vol 324 26, 2009 p1619.) pdf

26- Cailleau A., P.-O. Cheptou, T. Lenormand. 2010. Ploidy and the evolution of endosperm of flowering plants. Genetics 184: 439-453. pdf

27-Eckert, C.G., Kalisz, S., Geber, M.A., Sargent, R., Elle, E., Cheptou,P.-O. Goodwillie, C., Johnston, M.O. Kelly, J.K. Moeller, D.A. Porcher, E. Ree, R.H.,Vallejo-Marın, M. and A.A. Winn 2010 Plant mating systems in a changing world vol25(1) 35-43 Trends in Ecology and evolution. pdf

28-Coreau, A. Treyer,S. Cheptou, P.-O. Thompson, J.D. and Mermet L. 2010 Exploring the difficulties of studying futures in ecology: what do ecological scientists think? Vol119 (8) 1364-1376Oikos pdf

29-Cheptou P.-O.and Donohue, K. 2011 Environment-dependent inbreeding depression: its ecological and evolutionary significance. 189: 395–407New Phytologist (Tansley review). pdf

30- Massol, F.& P.-O. Cheptou 2011"Evolutionary syndromes linking dispersal and mating system: the effect of autocorrelation in pollination conditions" 65 (2)pp 591-598 Evolution. pdf

31- Massol, F.& P.-O. Cheptou 2011 When should we expect the evolutionary association of self-fertilization and dispersal?65(5) , pp 1217–1522 Evolution . pdf

32-Dornier, A., Pons, V. & P.-O. Cheptou 2011 Colonization and extinction dynamics of an annual plant metapopulation in an urban environment Oikos Vol: 120 (8) pp1240-1246 pdf

33-Cheptou P.-O2011 Clarifying Baker’s law Annals of Botany (early view) pdf

34-Winn, A.A., Elle, E., Kalisz, S., Cheptou, P.-O., Eckert,C.G., Goodwillie, C. Johnston,M.O., Moeller, D.A., Ree, R.H., Sargent, R.D. and Vallejo-Marın, M. 2011 Analysis of inbreeding depression in mixed mating plants provides evidence for selective interference and stable mixed mating Evolution (early view). pdf

35-Dornier, A. & P.-O. Cheptou2011 Determinants of extinction in plant fragmented populations: Crepis sancta (Asteraceae) in urban environment Oecologia (early view) pdf

36-Sun S, & P.-O. Cheptou 2012 Life-history traits evolution across distribution ranges: how the joint evolution of dispersal and mating system favor the evolutionary stability of range limits?" Evolutionary Ecology (early view) pdf

37 Dubois, J. & P.-O. Cheptou 2012 Competition/colonization syndrome mediated by early germination in non-dispersing achenes in the heteromorphic species Crepis sancta Annals of Botany (in press)

38-Stojanova B., Dubois, M.P., Maurice, S. & P.-O.Cheptou Isolation and characterization of microsatellite markers for the cleistogamous species Lamium amplexicaule (Lamiaceae) American Journal of Botany (in press).

39- Cheptou P.-O.and Donohue, K. 2012 Epigenetics as a new avenue for the role of inbreeding depression in evolutionary ecology Heredity

 

Critique d’ouvrages :

40-Cheptou P.-O 2009 Major evolutionary transitions in flowering plant reproduction Quaterly review of Biology September 2009, Vol. 84, No. 3: 308-309. (analyse critique du numéro special “Major evolutionary transitions in flowering plant reproduction” édité par Spencer C.H. Barrett dans la revue International Journal of Plant Science 169 (2008)). pdf

 

Chapitres d’ouvrages

1-Cheptou P.-O. 2004 The evolution of plant mating systems: towards an integration of ecology and population genetics. Recent Res. Devel. Genet. Breeding, 131-150 Research Signpost Kerala, India.

2-Lenormand, T., Roze, D ., Cheptou P.-O. and Maurice, S. 2010 L’évolution du sexe : un carrefour pour la biologie évolutive. Ed : Frederic Thomas, Thierry Lefèvre, Michel Raymond Biologie EvolutiveDe Boeck ISBN: 2804101614.

3-Cheptou P.-O. A. Dornier. 2012 Urban metapopulation dynamics and evolution of dispersal traits in the weed Crepis sancta, in “ Informed Dispersal and Spatial Evolutionary Ecology,” J. Clobert, M. Baguette, T. Benton, and J. Bullock, eds. Oxford University Press. In press.

4-Cheptou P.-O 2012 Crepis sancta (Asteraceae) as a model system to study dispersal evolution in “ Informed Dispersal and Spatial Evolutionary Ecology,” (note dans le chapitre introductif) J. Clobert, M. Baguette, T. Benton, and J. Bullock, eds. Oxford University Press. In press.

5-Cheptou P.-O 2012 The evolution of plant mating system: is it time for a synthesis? in "Population Genetics", ISBN 979-953-307-446-6. (e-chapter) InTech Open science (sous presse, en ligne le01/02/2012) preprint