Thierry Rigaud

Thierry RigaudDirecteur de Recherche au CNRS

Equipe Ecologie Evolutive

Laboratoire Biogeosciences

CNRS, UMR 5561

Universite de Bourgogne

6, Blvd Gabriel,

21000 Dijon, France

tel (33) 3 80 39 39 45 /Fax 62 31

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Academic background

  • Graduate studies in Université de Poitiers - 1987

  • DEA (MSc) in Population Biology & Eco-Ethology, Université de Tours - 1988

  • PhD in Population Biology, Université de Tours - 1991

  • Habilitation à Diriger les Recherches, Université de Poitiers - 1999



  • 1992 – 2001        Chargé de Recherche au CNRS, Université de Poitiers

  • 2001 – 2003        Chargé de Recherche au CNRS, Université de Bourgogne, Dijon

  • 2003 – present     Directeur de Recherche au CNRS, Université de Bourgogne, Dijon


Research interests

 My main research interests are in the evolutionary ecology of host-parasite interactions, focusing on the diversity of parasite's strategies of host exploitation and the consequences on host population biology. The main topics of my studies are about:

  •  Manipulation of host sex ratio. I'm interested in vertically-transmitted parasites (Wolbachia (my former favorite parasite!) , microsporidia) as reproductive parasites of their crustacean hosts, their consequences on host reproductive strategies.

  •  Manipulation of host behaviour. The model organisms are acanthocephalan parasites, infecting freshwater crustacean intermediate hosts. I'm interested in investigating the causes for the variability observed in the manipulation (genetics, environment).

  •  Conflicts between manipulative parasites. How do parasites with different transmission strategies coexist in a single host? Are there conflicts and how are they expressed? What are the consequences for the host? I try to address these questions by studying the above-cited parasites.

  •  The role of biological invasions in evolutionary ecology of host-parasite relationships. The model organisms are the invasive amphipods and their parasites.

  •  More recently, I also began projects on sea urchins and their symbionts:  (1)  to understand the role of ectosymbiosis on benthic biodiversity in Antarctica; (2)  to understand how the life cycle of ectosymbiotic crab is shared between two hosts.

Gammarus roeseli


Publications (present to 2001) 


Labaude S., Rigaud T. and Cézilly F. (2016) Additive effects of temperature and infection with an acanthocephalan parasite on the shredding activity of Gammarus fossarum (Crustacea: amphipoda): the importance of aggregative behavior. Global Change Biol., In press. doi: 10.1111/gcb.13490


De Bruyn C., David B., Motreuil S., Caulier G., Jossart Q., Rigaud T. and De Ridder C. (2016). Should I stay or should I go? Causes and dynamics of host desertion by a parasitic crab living on echinoids. Mar. Ecol. Prog. Ser., 546, 163–171.


Labaude S., Rigaud T. and Cézilly F. (2015) Host manipulation in the face of environmental changes: ecological consequences. International Journal for Parasitology: Parasites and wildlife, 4, 442-451.


Bauer A. and Rigaud T. (2015). Identifying a key host in an acanthocephalan-amphipod system. Parasitology, 142, 1588–1594.


Rewicz T., Wattier R., Grabowski M, Rigaud T. , Bącela-Spychalska K. (2015). Out of the Black Sea: phylogeography of the invasive killer shrimp Dikerogammarus villosus across Europe. PlosOne, 10(2): e0118121. doi:10.1371/journal.pone.0118121.


Rewicz T., Wattier R.A., Rigaud T., Bacela-Spychalska K. and Grabowski M. (2015). Isolation and characterization of 8 microsatellite loci for the “killer shrimp’’, an invasive Ponto-Caspian amphipod Dikerogammarus villosus (Crustacea: Amphipoda). Mol. Biol. Rep., 42, 13–17. doi: 10.1007/s11033-014-3742-0


Lagrue C., Wattier R., Galipaud M., Gauthey Z., Rullmann J.P., Dubreuil C., Rigaud T. and Bollache L. (2014) Confrontation of cryptic diversity and mate discrimination within Gammarus pulex and Gammarus fossarum species complexes. Freshwater Biol. 59, 2555-2570.


Gaba S., Bretagnolles F., Rigaud T. and Philippot L. (2014). Managing biotic interactions for ecological intensification of agroecosystem. Frontiers Ecol. Evol., 2, 29. doi: 10.3389/fevo.2014.00029.


Cézilly F., Perrot-Minnot M.J. and Rigaud T. (2014) Cooperation and conflicts in host manipulation: interactions among macro-parasites and micro-parasites. Frontiers Microbiol., 5, 248. [ PDF ]


Dianne L., Perrot-Minnot M.J., Bauer A., Guvenatam A. and Rigaud T. (2014) Parasite-induced alteration of plastic response to predation threat: increased refuge use but lower food intake in Gammarus pulex infected with the acanothocephalan Pomphorhynchus laevis. Int. J. Parasitol., 44, 211–216. [ PDF ]


Jossart Q., Wattier R.A., Kastally C., Aron S., David B., De Ridder C. and Rigaud T. (2014). Genetic evidence confirms polygamous mating system in a crustacean parasite with multiple hosts. PlosOne, 9, e90680. [ PDF ]


Bacela-Spychalska K., Rigaud T. and Wattier R.A. (2014). A co-invasive microsporidian parasite reduces the predatory behaviour of its host Dikerogammarus villosus (Crustacea, Amphipoda). Parasitology, 141, 254–258. [ PDF ]


Jossart Q., David B., De Bruyn C., De Ridder C., Rigaud T. and Wattier R. A. (2013). No evidence for host specialization in a parasitic crab exploiting two echinoid hosts. Mar. Ecol. Prog. Ser., 475, 167–176. [ PDF ]


Durieux R., Rigaud T. and Médoc V. (2012). Parasite-induced suppression of aggregation under predation risk in a freshwater amphipod. Behav. Process. 91, 207-213. [ PDF ]


Lepinay C., Rigaud T., Salon C., Lemanceau P. and Mougel C. (2012). Interaction between Medicago truncatula and the mutualistic soil microbe Pseudomonas fluorescens C7R12: Evaluation of costs and benefits across an elevated atmospheric CO2. PlosOne, 7(9): e45740. [ PDF ]


Dianne L., Bollache L., Lagrue C., Franceschi N. and Rigaud T. (2012). Larval size in acanthocephalan parasites: Influence of intraspecific competition and effects on intermediate host behavioural changes. Parasites & Vectors, 5:166. [ PDF ]


Gismondi E., Rigaud T., Beisel J.N. and Cossu-Leguille C. (2012) Effect of multiple parasitic infection on the tolerance to pollutant contamination. PlosOne, 7(7): e41950. [ PDF ]


Bacela-Spychalska K., Wattier R.A., Genton C., and Rigaud T. (2012). Microsporidian disease of the invasive amphipod Dikerogammarus villosus and the potential for its transfer to local invertebrate fauna.  Biological Invasions, 14, 1831–1842. [ PDF ]


Gismondi E., Rigaud T., Beisel J.N. and Cossu-Leguille C. (2012). Microsporidia parasites disrupt the responses to cadmium exposure in a Gammarid. Environmental Pollution, 160, 17–23. [ PDF ]


Médoc V., Rigaud T., Motreuil S., Perrot-Minnot M.J. and Bollache L. (2011) Paratenic hosts as regular transmission route in the acanthocephalan Pomphorynchus laevis: potential implications for food webs. Naturwissenschaften, 98, 825–835. [ PDF ]


Dianne L., Perrot-Minnot M.J., Bauer A., Gaillard M., Léger E. and Rigaud T. (2011). Protection first then facilitation: a manipulative parasite modulates the vulnerability to predation of its intermediate host according to its own developmental stage. Evolution, 65, 2692–2698. [ PDF ]


Ben-Ami F., Rigaud T. and Ebert D. (2011). The expression of virulence during double infections by different parasites with conflicting host exploitation and transmission strategies. J. Evol. Biol., 24, 1307–1316. [ PDF ]


Thomas F., Brodeur J., Maure F., Franceschi N., Blanchet S. and Rigaud T. (2011) Intraspecific variability in host manipulation by parasites. Infec. Genet. Evol., 11,  262-269. [ PDF ]


Hardy C., David B., Rigaud T., De Ridder C. and Saucède T. (2011). Ectosymbiosis associated with cidaroids Echinodermata: Echinoidea) promotes benthic colonization of the seafloor in the Larsen embayments, western Antarctica. Deep-Sea Research II, 58, 84-90. [ PDF ]


De Bruyn C., De Ridder C., Rigaud T. and David B. (2011) Chemical host detection and differential attraction in a parasitic pea crab infecting two echinoids. J. Exp. Mar. Biol. Ecol., 397, 173-178. [ PDF ]


Dianne L., Rigaud T., Léger E., Motreuil S., Bauer A. and Perrot-Minnot M.J. (2010) Intraspecific conflict over host manipulation between different larval stages of an acanthocephalan parasite. J. Evol. Biol., 23, 2648–2655. [ PDF ]


Rigaud T., Perrot-Minnot M.J. and Brown M.J.F. (2010) Parasite and host assemblages: embracing the reality will improve our knowledge of parasite transmission and virulence. Proc. R. Soc. B., 277, 3693–3702. [ PDF ]


Franceschi N., Bollache L., Cornet S., Bauer A., Motreuil S. & Rigaud T. (2010) Co-variation between the intensity of behavioural manipulation and parasite development time in an acanthocephalan-amphipod system. J. Evol. Biol., 23, 2143–2150. [ PDF ]


Moret Y., Rigaud T., Motreuil S., Troussard J.P. and Moreau J. (2010) Condition-dependent ecdysis and immunocompetence in the amphipod crustacean, Gammarus pulex. Biol. Lett., 6, 788–791. [ PDF ]


Franceschi N., Cornet S., Bollache L., Dechaume-Moncharmont F.X., Bauer A., Motreuil S. and Rigaud T. (2010) Variation between populations and local adaptation in acanthocephalan-induced parasite manipulation. Evolution, 64, 2417–2430. [ PDF ]


Molecular Ecology Resources Primer Development Consortium. Anderson C.M. ... De Bruyn C., ... David B., ... De Ridder C., ... Dubreuil C.,  ...Gaillard M.,  ...Rigaud T. ,  ... Wattier R.A. et al. (2010). Permanent Genetic Resources added to Molecular Ecology, Resources Database 1 December 2009–31 January 2010. Mol. Ecol. Res., 10, 576-579. [ PDF ]


Nachev M., Zimmermann S., Rigaud T. & Sures B. (2010). Is metal accumulation in Pomphorhynchus laevis dependent on parasite sex or infrapopulation size? Parasitology, 137, 1239–1248. [ PDF ]


Ovcharenko M.O., Bacela K., Wilkinson T., Ironside J.E., Rigaud T. & Wattier R.A. (2010) Cucumispora dikerogammari n. gen. (Fungi: Microsporidia) infecting the invasive amphipod Dikerogammarus villosus: a potential emerging disease in European rivers. Parasitology, 137, 191-204. [ PDF ]


De Bruyn C., David B., De Ridder C. & Rigaud T. (2010). Asymmetric exploitation of two echinoid hosts by a parasitic pea crab and its consequences for the parasitic life cycle. Mar. Ecol. Prog. Ser., 398, 183-191. [ PDF ]


Cornet S., Bollache L., Franceschi N., Rigaud T. & Sorci G. (2009) Variation and covariation in infectivity, virulence and immune depression in the host-parasite association Gammarus pulex - Pomphorhynchus laevis. Proc. R. Soc. B., 276, 4229–4236. [ PDF ]


Médoc V., Rigaud T., Bollache L. & Beisel J.N. (2009) A manipulative parasite increasing an anti-predatory response decreases its vulnerability to a non-host predator. Anim. Behav., 77, 1235–1241. [ PDF ]


De Bruyn C., Rigaud T., David B. & De Ridder C. (2009) Symbiosis between the crab Dissodactylus primitivus and its echinoid host Meoma ventricosa and potential consequences on the crab mating system. Mar. Ecol. Prog. Ser., 375, 173-183. [ PDF ]


Lemaître J.F., Rigaud, T., Cornet, S. & Bollache, L. (2009) The effect of sperm depletion on male mating behaviour and reproductive “time-out” in Gammarus pulex (Crustacea, Amphipoda). Anim. Behav., 77, 49-54. [ PDF ]


Cornet S., Franceschi N., Bauer A., Rigaud T. & Moret Y. (2009) Immune depression induced by acanthocephalan parasites in their intermediate crustacean host: consequences on super-infection risk and links with other host manipulation. Int. J. Parasitol., 39, 221-229. [ PDF ]


Voordouw M.J., Stebbins G., Robinson H.E., Perrot-Minnot M.J., Rigaud T. & Anholt B.R.(2008). Genetic variation in the primary sex ratio in populations of an intertidal copepod, Tigriopus californicus, is widespread on Vancouver Island. Evol. Ecol. Res., 10, 1007-1023. [ PDF ]


Kaldonski N., Lagrue C., Motreuil S., Rigaud T. and Bollache L. (2008). Habitat segregation mediates predation by the benthic fish Cottus gobio on the exotic amphipod species Gammarus roeseli. Naturwissenschaften. , 95, 839-844. [ PDF ]


Hétérier V., David B. , De Ridder C. & Rigaud T. (2008) Ectosymbiosis, a critical factor in establishing local benthic biodiversity in Antarctic deep sea. Marine Ecology Progress Series., 364, 67-76. [ PDF ]


Franceschi N., Bauer A. , Bollache L. & Rigaud T. (2008) the effects of parasite age and intensity on variability in acanthocephalan-induced behavioural manipulation. Int. J. Parasitol., 38, 1161-1170. [ PDF ]


Wattier R.A., Haine E.R., Beguet J., Martin G., Bollache L., Muskó I.B., Platvoet D. and Rigaud T. (2007) No genetic bottleneck or associated microparasite loss in invasive populations of a freshwater amphipod. Oikos, 116, 1941-1953. [ PDF ]


Franceschi N., Rigaud T., Moret Y., Hervant F. & Bollache L. (2007) Behavioural and physiological effects of the trophically transmitted cestode parasite Cyathocephalus truncatus on its intermediate host, Gammarus pulex. Parasitology, 134, 1839-1847. [ PDF ]


Haine E. R., Motreuil S. & Rigaud T. (2007) Infection by a vertically-transmitted microsporidian parasite is associated with a female-biased sex ratio and survival advantage in the amphipod Gammarus roeseli. Parasitology, 134, 1363-1367. [ PDF ]


Moret Y., Bollache L., Wattier R. & Rigaud T. (2007) Who from the host or the parasite is the most locally adapted in an amphipod-acanthocephalan relationship? A case study in a biological invasion context.  Int. J. Parasitol. 37, 637-644. [ PDF ]


Bentz S., Rigaud T., Barroca M., Martin-Laurent F., Bru D., Moreau J., Faivre B. (2006) Sensitive measure of prevalence and parasitemia of haemosporidian from European blackbird (Turdus merula) populations: value of PCR-RFLP and quantitative PCR. Parasitology, 133, 685-692. [ PDF ]


Bollache L., Kaldonski N., Troussard J.P., Lagrue C. & Rigaud T. (2006) Spines and behaviour as defences against fish predators in an invasive freshwater amphipod. Anim. Behav. 72, 627-633. [ PDF ]


Haine, E.R., Boucansaud K. & Rigaud T. (2005) Conflict between parasites with different transmission strategies infecting an amphipod host. Proc. R. Soc. B, 272, 2505-2510. [ PDF ]


Bauer A., Haine E.R., Perrot-Minnot M.J., & Rigaud T. (2005) The acanthocephalan parasite Polymorphus minutus alters the geotactic and clinging behaviours of two sympatric hosts Gammarus pulex (native host) and Gammarus roeseli (invasive host). J. Zool., 267, 39-43. [ PDF ]


Rigaud T. & Haine E. R. (2005) Conflict between co-occurring parasites as a confounding factor in manipulation studies? Behav. Process., 68, 259-262. [ PDF ]


Rigaud T. & Moreau J. (2004) A cost of Wolbachia-induced sex reversal and female-biased sex ratios: decrease in female fertility after sperm depletion in a terrestrial isopod. Proc. R. Soc. London B, 271, 1941-1946. [ PDF ]


Haine E.R., Brondani E., Hume K.D., Perrot-Minnot M.J., Gaillard M. & Rigaud T. (2004) Coexistence of three microsporidia parasites in populations of the freshwater amphipod Gammarus roeseli: Evidence for vertical transmission and positive effect on reproduction. Int. J. Parasitol., 34, 1137-1146. [ PDF ]


Terry R. S., Smith J.E., Sharpe R.G., Rigaud T., Littlewood D. T.J., Ironside J.E., Rollinson D., Bouchon D., MacNeil C., Dick J.T.A. & Dunn A. M. (2004) Widespread vertical transmission and associated host sex ratio distortion within the eukaryotic phylum Microspora. Proc. R. Soc. London B, 271, 1783-1789. [ PDF ]


Cordaux R., Michel-Salzat A., Raimond M., Rigaud T. & Bouchon D. (2004) Evidence for a new feminizing Wolbachia strain in the isopod Armadillidium vulgare: evolutionary implications. Heredity, 93, 78-84. [ PDF ]


Bollache L., Devin S., Wattier R., Chovet M., Beisel J.N., Moreteau J.C. & Rigaud T. (2004) Rapid range extension of the Ponto-Caspian amphipod Dikerogammarus villosus in France: potential consequences. Arch. Hydrobiol., 160, 57-66. [ PDF ]


Rigaud T. & Moret Y. (2003) Differential phenoloxidase activity between native and invasive gammarids infected by local acanthocephalans: differential immunosupression? Parasitology, 127, 571-577. [ PDF ]


Moreau J. & Rigaud T. (2003) Variable male potential of reproduction: high male mating capacity as an adaptation to parasite-induced excess of females? Proc. R. Soc. London B, 270, 1535-1540. [ PDF ]


Plaistow S.J., Outreman Y., Moret Y. & Rigaud T. (2003) Variation in the risk of being wounded: an overlooked factor in studies of invertebrate immune function? Ecol. Letters, 6, 489-494. [ PDF ]


Moreau J., Seguin S., Caubet Y. & Rigaud T. (2002) Female remating and sperm competition patterns in a terrestrial crustacean. Anim. Behav., 64, 569-577. [ PDF ]


Bollache L., Rigaud T. & Cézilly F. (2002) Effects of two acanthocephalan parasites on the fecundity and pairing status of female Gammarus pulex (Crustacea: Amphipoda). J. Invertebr. Pathol., 79, 102-110. [ PDF ]


Randerson J., Moreau J., Rigaud T. & Hurst, L.D. (2002) Understanding the evolution of Wolbachia endosymbiosis : coexistence of feminization and cytoplasmic incompatibility. Selection, 2, 237-248.


Moreau J. & Rigaud T. (2002) Calcium carbonate deposits shape as external marker for female reproductive status in terrestrial isopods. J. Crust. Biol., 22, 353-356. [ PDF ]


Rigaud T., Pennings P.S. & Juchault P. (2001) Wolbachia bacteria effects after experimental interspecific transfers in terrestrial isopods. J. Invertebr. Pathol., 77, 251-257. [ PDF ]


Moret Y., Juchault P. & Rigaud T. (2001) Wolbachia endosymbiont responsible for cytoplasmic incompatibility in a terrestrial crustacean: effects in natural and foreign hosts. Heredity, 86, 225-232. [ PDF ]


Moreau J., Bertin A., Caubet Y. & Rigaud T. (2001) Sexual selection in an isopod with Wolbachia-induced sex reversal: males prefer real females. J. Evol. Biol., 14, 388-394. [ PDF ]


Bandi C., Dunn A.M., Hurst G.D.D. & Rigaud T. (2001) Hereditary symbiosis, sex specific virulence and reproductive parasitism. Trends Parasitol., 17, 88-94. [ PDF ]


last update: september 2016