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Group Chapuisat - Social Evolution.

We study the evolution of social behaviour, with a focus on the structure, function and evolution of insect societies. We are currently working on the causes and consequences of social structure variation in ants, and on social defences against parasites. We combine genomic, behavioural, ecological and experimental approaches, in the field and laboratory.


Causes and consequences of variation in social organization

The social organization of insect societies varies greatly, from simple families headed by one queen to large social groups containing many reproductive individuals. A long-term goal of our research is to understand the causes and consequences of social structure variation in insect societies.

In our main model system, the Alpine silver ant Formica selysi, single- and multiple-queen colonies occur in the same populations. We investigate the genetic, behavioural and ecological bases of this polymorphism. We have been monitoring field colonies over a period of 15 years. We explore how the two social forms differ and which factors and processes contribute to the maintenance of the social polymorphism. Using a genotyping-by-sequencing approach, we have identified a social chromosome associated with colony queen number. We are currently investigating the origin and maintenance of this genetic polymorphism controlling social organization, and exploring which ecological factors and behavioural processes favour each social form.

A lab colony of Formica selysi

Social defences against parasites

Social life is generally associated with an increased exposure to pathogens and parasites, due to factors such as high population density, frequent physical contact and the use of perennial nest sites. However, social life also permits the evolution of collective behavioural defences and the emergence of novel group-level adaptations to resist parasites. We study these social defences against parasites in ants.

Wood ants collect pieces of solidified coniferous resin that they incorporate into their nests. We have shown that the presence of resin protects the ants against bacterial and fungal pathogens. We are further investigating the mode of action and economics of resin use.

A wood ant carrying a big piece of resin

Fungal pathogens may have a large impact on insect societies. In field surveys and lab experiments, we investigate how ant colonies of various degrees of complexity resist to fungal pathogens, with a special interest in their behavioural and collective defences.

A Formica selysi worker that died from an infection by the fungus Metarhizium anisopliae

Social evolution in sweat bees

Sweat bees (family Halictidae) are highly variable in their social organisation, which can range from solitary (one female breeds alone) to eusocial (the first generation of females becomes non-reproductive workers). Such variation provides a great opportunity to study the evolution of altruism and the costs and benefits of alternative social behaviours.

We study the social organisation, social behaviour and population genetics of the sweat bee Halictus scabiosae, which is common on the campus. The methods combine manipulative field experiments, behavioural observations, and genetic analyses with microsatellite markers. Our long-term goal is to unravel the selective pressures acting on alternative social behaviours such as of joint colony founding, drifting or helping at the nest.

A female sweat bee, Halictus scabiosae, nectaring on Knapweed flower.
Photo credit: Francis Ratnieks

In press |  2015 |  2014 |  2013 |  2012 |  2011 |  2010 |  2009 |  2008 |  2007 |  2006 |  2005 |  2004 |  2003 |  2002 |  2001 |  2000 |  1999 |  1998 |  1997 |  1996 |  1994 |  1992 |  Thèses (doctorat) | 

In Press
Clavien C., Chapuisat M., In Press. The evolution of utility functions and psychological altruism. Studies in History and Philosophy of Science C .
Bertelsmeier C., Avril A., Blight O., Jourdan H., Courchamp F., 2015. Discovery-dominance trade-off among widespread invasive ant species. Ecology and Evolution 5(13) pp. 2673-2683. [DOI] [Web of Science]
Purcell J., Pellissier L., Chapuisat M., 2015. Social structure varies with elevation in an Alpine ant. Molecular Ecology 24(2) pp. 498-507. [embargo 01/01/2016] [DOI] [Web of Science] [Pubmed]
Brand N., Chapuisat M., 2014. Impact of helpers on colony productivity in a primitively eusocial bee. Behavioral Ecology and Sociobiology 68(2) pp. 291-298. [Document] [DOI] [Web of Science]
Brütsch T., Chapuisat M., 2014. Wood ants protect their brood with tree resin. Animal Behaviour 93 pp. 157-161. [Document] [DOI] [Web of Science]
Brütsch T., Felden A., Reber A., Chapuisat M., 2014. Ant queens (Hymenoptera: Formicidae) are attracted to fungal pathogens during the initial stage of colony founding. Myrmecological News 20 pp. 71-76. [Document] [url editor site]
Chapuisat M., 2014. Evolution. Smells like queen since the Cretaceous. Science 343(6168) pp. 254-255. [Document] [DOI] [Web of Science] [Pubmed]
Gálvez D., Chapuisat M., 2014. Immune priming and pathogen resistance in ant queens. Ecology and Evolution 4(10) pp. 1761-1767. [Document] [DOI] [Web of Science] [Pubmed]
Keller L., Chapuisat M., 2014. The evolution of eusociality. pp. 697-702 in Losos J.B. (eds.) Princeton Guide to Evolution. Princeton University Press, Princeton.
Kocher S.D., Pellissier L., Veller C., Purcell J., Nowak M.A., Chapuisat M., Pierce N.E., 2014. Transitions in social complexity along elevational gradients reveal a combined impact of season length and development time on social evolution. Proceedings of the Royal Society. B Biological Sciences 281(1787) p. 20140627. [Document] [DOI] [Web of Science] [Pubmed]
Purcell J., Avril A., Jaffuel G., Bates S., Chapuisat M., 2014. Ant brood function as life preservers during floods. PLoS One 9(2) pp. e89211. [Document] [DOI] [Web of Science] [Pubmed]
Purcell J., Brelsford A., Wurm Y., Perrin N., Chapuisat M., 2014. Convergent genetic architecture underlies social organization in ants. Current Biology 24(22) pp. 2728-2732. [Document] [DOI] [Web of Science] [Pubmed]
Purcell J., Chapuisat M., 2014. Foster carers influence brood pathogen resistance in ants. Proceedings of the Royal Society B Biological Sciences 281(1792) p. 20141338. [Document] [DOI] [Web of Science] [Pubmed]
Rasmann S., Buri A., Gallot-Lavallée M., Joaquim J., Purcell J., Pellissier L., 2014. Differential allocation and deployment of direct and indirect defences by Vicia sepium along elevation gradients. Journal of Ecology 102(4) pp. 930-938. [DOI] [Web of Science]
Clavien C., Chapuisat M., 2013. Altruism across disciplines: one word, multiple meanings. Biology and Philosophy 28(1) pp. 125-140. [Document] [DOI] [Web of Science]
Grangier J., Avril A., Lester P.J., 2013. Male production by workers in the polygynous ant Prolasius advenus. Insectes Sociaux 60(3) pp. 303-308. [Document] [DOI] [Web of Science]
Reymond A., Purcell J., Cherix D., Guisan A., Pellissier L., 2013. Functional diversity decreases with temperature in high elevation ant fauna. Ecological Entomology 38(4) pp. 364-373. [DOI] [Web of Science]
Tragust S., Ugelvig L.V., Chapuisat M., Heinze J., Cremer S., 2013. Pupal cocoons affect sanitary brood care and limit fungal infections in ant colonies. BMC Evolutionary Biology 13 p. 225. [Document] [DOI] [Web of Science] [Pubmed]
Avilés L., Purcell J., 2012. The evolution of inbred social systems in spiders and other organisms: from short-term gains to long-term evolutionary dead-ends? pp. 99-133 in Brockmann H.J., Roper T.J., Naguib M., Mitani J.C., Simmons L.W. (eds.) Advances in the Study of Behavior. Elsevier. [DOI] [Web of Science]
Clavien C., 2012. Altruistic emotional motivation: an argument in favour of psychological altruism. pp. 275-296 in Plaisance K.S., Reydon T.A.C. (eds.) Philosophy of Behavioral Biology. Boston Studies in Philosophy of Science 282. Springer, Dordrecht. [DOI]
Clavien C., 2012. Kitcher's Revolutionary Reasoning Inversion in Ethics. Analyse & Kritik 34(1) pp. 117-128. [Document]
Clavien C., 2012. Nouvelle sociologie et morale naturalisée. SociologieS pp. 2-8. [url editor site]
Clavien C., Chapuisat M, 2012. Altruism - a philosophical analysis. p. 6 in eLS. John Wiley & Sons Ltd,, Chichester. [Document] [DOI]
Clavien C., Tanner C.J., Clément F., Chapuisat M., 2012. Choosy moral punishers. PLoS One 7(6) pp. e39002. [Document] [DOI] [Web of Science] [Pubmed]
Purcell J., Brelsford A., Avilés L., 2012. Co-evolution between sociality and dispersal: The role of synergistic cooperative benefits. Journal of Theoretical Biology 312C pp. 44-54. [DOI] [Web of Science] [Pubmed]
Purcell J., Brütsch T., Chapuisat M., 2012. Effects of the social environment on the survival and fungal resistance of ant brood. Behavioral Ecology and Sociobiology 66(3) pp. 467-474. [Document] [DOI] [Web of Science]
Purcell J., Vasconcellos-Neto J., Gonzaga M.O., Fletcher J.A., Avilés L., 2012. Spatio-temporal differentiation and sociality in spiders. PLoS One 7(4) pp. e34592. [DOI] [Web of Science] [Pubmed]
Reber A., Chapuisat M., 2012. No evidence for immune priming in ants exposed to a fungal pathogen. PLoS One 7(4) pp. e35372. [Document] [DOI] [Pubmed]
Abbot P., Abe J., Alcock J., Alizon S., Alpedrinha J.A., Andersson M., Andre J.B., van Baalen M., Balloux F., Balshine S. et al., 2011. Inclusive fitness theory and eusociality. Nature 471(7339) pp. E1-E4; author reply E9-E10. [Document] [DOI] [Pubmed]
Chapuisat M., Dubochet J., 2011. La révolution darwinienne. pp. 23-58 in Bornet P. (eds.) Et Dieu créa Darwin: théorie de l'évolution et créationnisme en Suisse aujourd'hui. Religions et modernités 7. Labor et Fides, Genève.
Clavien C., 2011. Comment répondre au discours créationniste. pp. 173-192 in Bornet P., Clivaz C., Durisch Gauthier N., Fawer Caputo C., Voegeli F. (eds.) Et Dieu créa Darwin: théorie de l'évolution et créationnisme en Suisse aujourd'hui. Religions et modernités 7. Labor et Fides, Genève.
Clavien C., 2011. Trois sortes d'altruisme et leur rapport à la morale. pp. 141-168 in Masala A., Ravat J. (eds.) La morale humaine et les sciences. Sciences & Philosophie . Editions Matériologiques, Paris.
Meunier J., Delémont O., Lucas C., 2011. Recognition in ants: social origin matters. PLoS One 6(5) pp. e19347. [Document] [DOI] [Web of Science] [Pubmed]
Meunier J., Figueiredo Pinto S., Burri R., Roulin A., 2011. Eumelanin-based coloration and fitness parameters in birds: a meta-analysis. Behavioral Ecology and Sociobiology 65(4) pp. 559-567. [Document] [DOI] [Web of Science]
Meunier J., Reber A., Chapuisat M., 2011. Queen acceptance in a socially polymorphic ant. Animal Behaviour 81(1) pp. 163-168. [Document] [DOI] [Web of Science]
Purcell J., 2011. Geographic patterns in the distribution of social systems in terrestrial arthropods. Biological Reviews of the Cambridge Philosophical Society 86(2) pp. 475-491. [DOI] [Web of Science] [Pubmed]
Reber A., Purcell J., Buechel S.D., Buri P., Chapuisat M., 2011. The expression and impact of antifungal grooming in ants. Journal of Evolutionary Biology 24(5) pp. 954-964. [Document] [DOI] [Web of Science] [Pubmed]
Castella G., Christe P., Chapuisat M., 2010. Covariation between colony social structure and immune defences of workers in the ant Formica selysi. Insectes Sociaux 57(2) pp. 233-238. [Document] [DOI] [Web of Science]
Chapuisat M., 2010. Evolution: plastic sociality in a sweat bee. Current Biology 20(22) pp. R977-R979. [Document] [DOI] [Web of Science] [Pubmed]
Chapuisat M., 2010. Social evolution: sick ants face death alone. Current Biology 20(3) pp. R104-R105. [Document] [DOI] [Web of Science] [Pubmed]
Clavien C., 2010. An affective approach to moral motivation. Journal of Cognitive Science 11(2) pp. 129-160.
Clavien C., 2010. Gerd Gigerenzer, Gut Feelings: Short Cuts to Better Decision Making. Ethical Theory and Moral Practice 13(1) pp. 113-115. [DOI] [Web of Science]
Clavien C., Klein R.A., 2010. Eager for fairness or revenge: psychological altruism in economics. Economics and Philosophy 26(3) pp. 267-290. [DOI] [Web of Science]
Keller L., Chapuisat M, 2010. Eusociality and cooperation. p. 9 in eLS. John Wiley & Sons, Ltd,, Chichester. [Document] [url editor site] [DOI]
Masclaux F., Hammond R.L., Meunier J., Gouhier-Darimont C., Keller L., Reymond P., 2010. Competitive ability not kinship affects growth of Arabidopsis thaliana accessions. New Phytologist 185(1) pp. 322-331. [Document] [DOI] [Pubmed]
Meunier J., Delaplace L., Chapuisat M., 2010. Reproductive conflicts and egg discrimination in a socially polymorphic ant. Behavioral Ecology and Sociobiology 64(10) pp. 1655-1663. [Document] [DOI]
Reber A., Meunier J., Chapuisat M., 2010. Flexible colony-founding strategies in a socially polymorphic ant. Animal Behaviour 79(2) pp. 467-472. [Document] [DOI] [Web of Science]
Castella G., Christe P., Chapuisat M., 2009. Mating triggers dynamic immune regulations in wood ant queens. Journal of Evolutionary Biology 22(3) pp. 564-570. [Document] [DOI] [Web of Science] [Pubmed]
Chapuisat M., 2009. Social evolution: the smell of cheating. Current Biology 19(5) pp. R196-R198. [Document] [DOI] [Web of Science] [Pubmed]
Clavien C., 2009. Comment comprendre les émotions morales. Dialogue - Canadian Philosophical Review 48(3) pp. 601-618. [DOI] [Web of Science]
Clavien C., 2009. Evolution, société, éthique : darwinisme social versus éthique évolutionniste. pp. 883-906 in Heams T., Huneman P., Lecointre G., Silberstein M. (eds.) Les mondes darwiniens. Syllepse, Paris.
Clavien C., 2009. Gibbard's expressivism: an interdisciplinary critical analysis. Philosophical Psychology 22(4) pp. 465-484. [DOI] [Web of Science]
Clavien C., 2009. Jugements moraux et motivation à la lumière des données empiriques. Studia Philosophica 68 pp. 179-206.
Devevey G., Chapuisat M., Christe P., 2009. Longevity differs among sexes but is not affected by repeated immune activation in voles (Microtus arvalis). Biological Journal of the Linnean Society 97(2) pp. 328-333. [Document] [DOI] [Web of Science]
Holzer B., Keller L., Chapuisat M., 2009. Genetic clusters and sex-biased gene flow in a unicolonial Formica ant. BMC Evolutionary Biology 9 p. 69. [Document] [DOI] [Web of Science] [Pubmed]
Meunier J., Chapuisat M., 2009. The determinants of queen size in a socially polymorphic ant. Journal of Evolutionary Biology 22(9) pp. 1906-1913. [Document] [DOI] [Web of Science] [Pubmed]
Ulrich Y., Perrin N., Chapuisat M., 2009. Flexible social organization and high incidence of drifting in the sweat bee, Halictus scabiosae. Molecular Ecology 18(8) pp. 1791-1800. [Document] [DOI] [Web of Science] [Pubmed]
Castella G., Chapuisat M., Christe P., 2008. Prophylaxis with resin in wood ants. Animal Behaviour 75(4) pp. 1591-1596. [Document] [DOI] [Web of Science]
Castella G., Chapuisat M., Moret Y., Christe P., 2008. The presence of conifer resin decreases the use of the immune system in wood ants. Ecological Entomology 33(3) pp. 408-412. [Document] [DOI] [Web of Science]
Chapuisat M., 2008. Sex allocation. pp. 466-499 in Danchin E., Giraldeau L. A., Cézilly F. (eds.) Behavioural ecology. Oxford University Press, Oxford. [url editor site]
Devevey G., Niculita-Hirzel Hélène, Biollaz F., Candice Y., Chapuisat M., Christe P., 2008. Developmental, metabolic and immunological costs of flea infestation in the common vole. Functional Ecology 22(6) pp. 1091-1098. [Document] [DOI] [Web of Science]
Holzer B., Chapuisat M., Keller L., 2008. Foreign ant queens are accepted but produce fewer offspring. Oecologia 157(4) pp. 717-723. [Document] [DOI] [Web of Science] [Pubmed]
Holzer B., Meunier J., Keller L., Chapuisat M., 2008. Stay or drift? Queen acceptance in the ant Formica paralugubris. Insectes Sociaux 55(4) pp. 392-396. [Document] [DOI] [Web of Science]
Meunier J., West S., Chapuisat M., 2008. Split sex ratios in the social Hymenoptera: a meta-analysis. Behavioral Ecology 19(2) pp. 382-390. [Document] [DOI] [Web of Science]
Reber A., Castella G., Christe P., Chapuisat M., 2008. Experimentally increased group diversity improves disease resistance in an ant species. Ecology Letters 11(7) pp. 682-689. [Document] [DOI] [Web of Science] [Pubmed]
Chapuisat M., Keller L., 2007. Les fourmis, en froid avec Darwin? Les Dossiers de La Recherche 27 pp. 56-63. [Document]
Chapuisat M., Oppliger Anne, Magliano P., Christe P., 2007. Wood ants use resin to protect themselves against pathogens. Proceedings of the Royal Society of London Series B-Biological Sciences 274(1621) pp. 2013-2017. [Document] [DOI] [Web of Science] [Pubmed]
Clavien C., 2007. Comment les données scientifiques et les théories évolutionnistes transforment l'éthique normative. pp. 220-244 in Clavien C., El-Bez C. (eds.) Morale et évolution biologique ; entre déterminisme et liberté. PPUR, Lausanne.
Rosset H., Chapuisat M., 2007. Alternative life-histories in a socially polymorphic ant. Evolutionary Ecology 21(5) pp. 577-588. [Document] [DOI] [Web of Science]
Holzer B., Chapuisat M., Kremer N., Finet C., Keller L., 2006. Unicoloniality, recognition and genetic differentiation in a native Formica ant. Journal of Evolutionary Biology 19(6) pp. 2031-2039. [Document] [DOI] [Web of Science] [Pubmed]
Holzer B., Kümmerli R., Keller L., Chapuisat M., 2006. Sham nepotism as a result of intrinsic differences in brood viability in ants. Proceedings of the Royal Society of London Series B-Biological Sciences 273(1597) pp. 2049-2052. [Document] [DOI] [Web of Science] [Pubmed]
Regnaut S., Christe P., Chapuisat M., Fumagalli L., 2006. Genotyping faeces reveals facultative kin association on capercaillie's leks. Conservation Genetics 7(5) pp. 665-674. [Document] [DOI] [Web of Science]
Rosset H., Chapuisat M., 2006. Sex allocation conflict in ants: when the queen rules. Current Biology 16(3) pp. 328-331. [Document] [DOI] [Web of Science] [Pubmed]
Chapuisat M., 2005. Allocation des ressources dans la progéniture mâle et femelle. pp. 331-363 in Danchin E., Giraldeau L.A., Cézilly F. (eds.) Ecologie comportementale : cours et questions de réflexion. Dunod, Paris. [url editor site]
Chapuisat M., Bernasconi C., Hoehn S., Reuter M., 2005. Nestmate recognition in the unicolonial ant Formica paralugubris. Behavioral Ecology 16(1) pp. 15-19. [Document] [DOI] [Web of Science]
Dronnet S., Chapuisat M., Vargo E.L., Bagnères A.G., Lohou C., 2005. Genetic analysis of the breeding system of an invasive subterranean termite, Reticulitermes santonensis, in urban and natural habitats. Molecular Ecology 14(5) pp. 1311-1320. [Document] [DOI] [Web of Science] [Pubmed]
Jemielity S., Chapuisat M., Parker J. D., Keller L., 2005. Long live the queen: studying aging in social insects. Age 27(3) pp. 241-248. [Document] [DOI] [Web of Science]
Schwander T., Rosset H., Chapuisat M., 2005. Division of labour and worker size polymorphism in ant colonies: the impact of social and genetic factors. Behavioral Ecology and Sociobiology 59(2) pp. 215-221. [Document] [DOI] [Web of Science] [Pubmed]
Chapuisat M., 2004. Evolution: social selection for eccentricity. Current Biology 14(23) pp. R1003-R1004. [Document] [DOI] [Web of Science] [Pubmed]
Christe P., Oppliger Anne, Bancala F., Castella G., Chapuisat M., 2003. Evidence for collective medication in ants. Ecology Letters 6(1) pp. 19-22. [Document] [DOI] [Web of Science]
Sundström L., Keller L., Chapuisat M., 2003. Inbreeding and sex-biased gene flow in the ant Formica exsecta. Evolution 57(7) pp. 1552-1561. [Document] [DOI] [Web of Science] [Pubmed]
Zhu D., Chapuisat M., Pamilo P., 2003. Highly variable social organisation of colonies in the ant Formica cinerea. Hereditas 139(1) pp. 7-12. [Document] [DOI] [Web of Science] [Pubmed]
Chapuisat M., Keller L., 2002. Division of labour influences the rate of ageing in weaver ant workers. Proceedings of the Royal Society of London Series B-Biological Sciences 269(1494) pp. 909-913. [Document] [DOI] [Web of Science] [Pubmed]
Chapuisat M., Crozier R., 2001. Low relatedness among cooperatively breeding workers of the greenhead ant Rhytidoponera metallica. Journal of Evolutionary Biology 14(4) pp. 564-573. [Document] [DOI] [Web of Science]
Keller L., Chapuisat M., 2001. Eusociality and cooperation. pp. 1-9 in Encyclopedia of Life Sciences. John Wiley & Sons, Ltd, Chichester. [Document] [url editor site] [DOI]
Keller L., Liautard C., Reuter M., Brown W.D., Sundström L., Chapuisat M., 2001. Sex ratio and Wolbachia infection in the ant Formica exsecta. Heredity 87(2) pp. 227-233. [Document] [DOI] [Web of Science] [Pubmed]
Chapuisat M., Painter J.N., Crozier R.H., 2000. Microsatellite markers for Rhytidoponera metallica and other ponerine ants. Molecular Ecology 9(12) pp. 2219-2221. [Document] [DOI] [Web of Science] [Pubmed]
Wedekind C., Bettens F., Chapuisat M., Füri S., Homberger F.R., Macas E., Paepke A.J., Rülicke T., Seebeck T., 2000. Examples of MHC-correlated sexual selection in mice and humans. pp. 437-444 in Espmark Y., Amundsen T., Rosenqvist G. (eds.) Animal signals: signalling and signal design in animal communication. Tapir Academic Press, Trondheim.
Chapuisat M., Keller L., 1999. Extended family structure in the ant Formica paralugubris: the role of the breeding system. Behavioral Ecology and Sociobiology 46(6) pp. 405-412. [Document] [DOI] [Web of Science]
Chapuisat M., Keller L., 1999. Testing kin selection with sex allocation data in eusocial hymenoptera. Heredity 82(5) pp. 473-478. [Document] [DOI] [Web of Science] [Pubmed]
Keller L., Chapuisat M., 1999. Cooperation among selfish individuals in insect societies. Bioscience 49(11) pp. 899-909. [Document] [DOI] [Web of Science]
Beye M., Neumann P., Chapuisat M., Pamilo P., Moritz R. F. A., 1998. Nestmate recognition and the genetic relatedness of nests in the ant Formica pratensis. Behavioral Ecology and Sociobiology 43(1) pp. 67-72. [Document] [DOI] [Web of Science]
Rülicke T., Chapuisat M., Homberger F.R., Macas E., Wedekind C., 1998. MHC-genotype of progeny influenced by parental infection. Proceedings of the Royal Society of London B Biological Sciences 265(1397) pp. 711-716. [Document] [DOI] [Web of Science] [Pubmed]
Chapuisat M., Keller L., 03-1997. Les fourmis sont-elles encore en froid avec Darwin ? La Recherche 296 pp. 90-93. [Web of Science]
Chapuisat M., Sundstrom L., Keller L., 1997. Sex-ratio regulation: the economics of fratricide in ants. Proceedings of the Royal Society of London Series B-Biological Sciences 264(1385) pp. 1255-1260. [Document] [DOI] [Web of Science]
Keller L., Sundstrom L., Chapuisat M., 1997. Male reproductive success: paternity contribution to queens and workers in Formica ants. Behavioral Ecology and Sociobiology 41(1) pp. 11-15. [Document] [DOI] [Web of Science]
McRae S. B., Chapuisat M., Komdeur J., 1997. The ant and the lion: common principles and idiosyncratic differences in social evolution. Trends in Ecology and Evolution 12(12) pp. 463-465. [DOI] [Web of Science]
Chapuisat M., Brown W. D., 1996. Social Evolution in ants. Journal of Evolutionary Biology 9(6) pp. 1032-1034. [DOI]
Sundstrom L., Chapuisat M., Keller L., 1996. Conditional manipulation of sex ratios by ant workers: A test of kin selection theory. Science 274(5289) pp. 993-995. [Document] [Web of Science] [Pubmed]
Wedekind C., Chapuisat M., Macas E., Rulicke T., 1996. Non-random fertilization in mice correlates with the MHC and something else. Heredity 77(4) pp. 400-409. [Document] [DOI] [Pubmed]
Ruedi M., Chapuisat M., Iskandar D.T., 1992. Genetic structure of the Lesser Gymnure (Genus Hylomys) in SE-Asia: evidence for two species. pp. 732-733 in Revue Suisse de Zoologie. [Web of Science]
Phd thesis
Brand N., 06-2014. Social evolution in the sweat bee Halictus scabiosae. Université de Lausanne, Faculté de biologie et médecine, Chapuisat M. (dir.). [Document]
Gálvez D., 2014. Social evolution and defences against pathogens in ants. 108 p., Université de Lausanne, Faculté de biologie et médecine, Chapuisat M. (dir.).
Reber A., 2010. Parasites and sociality in ants. 137 p., Université de Lausanne, Faculté de biologie et médecine, Chapuisat M. (dir.).
Meunier J., 06-2009. Conflict resolution and evolution of social structures in insect societies. 144 p., Université de Lausanne, Faculté de biologie et médecine, Chapuisat M. (dir.).
Holzer B., 2008. The evolution of unicoloniality in ant societies : recognition, dispersal and population genetic structure. 101 p., Université de Lausanne, Faculté de biologie et médecine, Chapuisat M. (dir.).
Rosset H., 2006. Impact of social structure variation on population genetics, social conflicts and life histories in ants. 94 p., Université de Lausanne, Faculté de biologie et médecine, Chapuisat M. (dir.).


Michel Chapuisat
Office room: 3123
Phone: +41(0)21 692 41 78
Fax: +41(0)21 692 41 65

Administrative assistant
Office room: 3109
Phone: +41 21 692 4160
Fax: +41 21 692 4165

Biophore - CH-1015 Lausanne  - Switzerland  -  Tel. +41 21 692 41 60  -  Fax +41 21 692 41 65
Swiss University