Yannick Moret

Directeur de Recherche CNRS






Équipe Écologie Évolutive

UMR 6282 BioGéoSciences CNRS/Université Bourgogne Franche Comté

6 boulevard Gabriel, 21000 Dijon, France

tel: (+33) 3 80 39 90 24

fax: (+33) 3 80 39 62 31

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Current research



My research interests focus on host-parasite interactions and ecological immunology using fresh water amphipod crustaceans (e.g. Gammarus sp.) and the yellow mealworm beetles, Tenebrio molitor, as study organisms. Current projects include:


  • Examining the influence of immunosuppressing parasites on the evolution host immune defences in Gammarus sp.
  • Identifying the role of dietary carotenoids on innate immune defences in Gammarus sp.
  • Studying the evolutionary ecology of immune priming within and across generations in the mealworm beetle, Tenebrio molitor.



Curriculum vitae

 2016 - actual. Directeur de Recherche CNRS, Équipe Écologie Évolutive, UMR CNRS 6282 Biogéosciences, Université Bourgogne Franche Comté, France.

2005 - 2016. Chargé de Recherche CNRS, Équipe Écologie Évolutive, UMR CNRS 6282 Biogéosciences, Université Bourgogne Franche Comté, France.


2004 - 2005. Natural Environment Research Council (NERC) Fellow, Department of Animal & Plant Sciences, University of Sheffield, UK.


2002 - 2004. Marie Curie Research Fellow, Department of Animal & Plant Sciences, University of Sheffield, UK.


2001. PhD, Swiss Federal Institute of Technology (ETH) of Zürich, Switzerland.


1996. Diplôme d'Etudes Approfondies (D.E.A.), Université de Tours, France.






 Coustau, C., Kurtz, J., Moret, Y. 2016 A novel mechanism of immune memory unveiled at the invertebrate-parasite interface. Trends in Parasitology 32, 353-355.

 Vogelweith, F., Moret, Y., Monceau, K., Thiéry, D., Moreau, J. 2016 The relative abundance of hemocyte types in a polyphagous moth larva depends on diet. Journal of Insect Physiology 88, 33-39.



 Dubuffet A., Zanchi C., Boutet G., Moreau J., Teixeira M., Moret, Y. 2015 Trans-generational Immune Priming Protects the Eggs Only against Gram-Positive Bacteria in the Mealworm Beetle PLoS Pathogens 11, e1005178.

Vogelweith F., Moreau J., Thiéry D., Moret, Y. 2015 Food-mediated modulation of immunity in a phytophagous insect: an effect of nutrition rather than parasitic contamination. Journal of Insect Physiology 77, 55-61.

Babin A., Saciat C., Teixeira M., Troussard J-P., Motreuil S., Moreau J., Moret Y. 2015 Limiting immunopathology: interaction between carotenoids and enzymatic antioxidant defences. Developmental & Comparative Immunology 49, 278-281.

Muller K., Thiéry D., Moret Y., Moreau, J. 2015 Male larval nutrition affects adult reproductive success in the wild European grapevine moth (Lobesia botrana). Behaviour Ecology and Sociobiology 69, 39-47.

Muller K., Vogelweith F., Thiéry D., Moret Y., Moreau, J. 2015 Immune benefits from alternative host plants could maintain polyphagy in a phytophagous insect. Oecologia 177, 467-475.


 Vogelweith F., Thiéry D., Moret Y., Colin E., Motreuil S., Moreau, J. 2014 Defense strategies used by two sympatric vineyards moth pests. Journal of Insect Physiology 64, 54-61.



Vogelweith F., Dourneau M., Thiéry D., Moret Y., Moreau J. 2013 Geographical variation in parasitism shapes larval immune function in a phytophagous insect. Naturwissenschaften 100, 1149-1161.

Vogelweith F., Thiéry D., Moret Y., Moreau J. 2013 Immunocompetence increases with larval body size in a phytophagous moth. Physiological Entomology 38, 219-225.

Vogelweith F., Moret Y., Thiéry D., Moreau J. 2013 Lobesia botrana larvae develop faster in the presence of parasitoids. PLoS One 8, e72568.



 Moret, Y., Moreau, J. 2012 The immune role of the arthropod exoskeleton. Invertebrate Survival Journal 9, 200-206.

Ruiz-Gonzalez, M. X., Bryden, J., Moret, Y., Reber-Funk, C., Schmid-Hempel, P.
& Brown M. J. F. (2012). Dynamic transmission, host quality and population structure in a multihost parasite of bumblebees. Evolution 66, 3053-3066.

 Moreau, J., Martinaud, G., Troussard, J-P., Zanchi, C. & Moret, Y. (2012). Trans-generational immune priming is constrained by the maternal immune response in an insect. Oikos 121, 1828-1832.

Zanchi, C., Troussard, J-P., Moreau, J. & Moret, Y. (2012). Relationship between maternal transfer of immunity and mother fecundity in an insect. Proceedings of the Royal Society - Biological Sciences 279, 3223-3230.



Vogelweith, F., Thiery, D., Quaglietti, B., Moret, Y. & Moreau, J. (2011). Host plant variation plastically impacts different traits of the immune system of a phytophagous insect. Functional Ecology 25, 1241-1247.

Zanchi, C., Troussard, J-P., Martinaud, G., Moreau, J. & Moret, Y. (2011). Differential expression and costs between maternally and paternally derived immune priming for offspring in an insect. Journal of Animal Ecology 80, 1174-1183.



Moret, Y., Rigaud, T., Motreuil, S., Troussard, J.-P. & Moreau, J. (2010). Condition-dependent ecdysis and immunocompetence in the amphipod crustacean, Gammarus pulex. Biology Letters 6: 788-791.


Babin, A., Biard, C. & Moret, Y. (2010). Dietary supplementation with carotenoids improves immunity without increasing its cots in a crustacean. American Naturalist 176, 234-241.


Cornet, S., Sorci, G. & Moret, Y. (2010). Biological invasion and parasitism: invaders do not suffer from physiological alterations of the acanthocephalan Pomphorhynchus laevis. Parasitology 137, 137-147.



 Schulenburg, H., Kurtz, J. Moret, Y. & Siva-Jothy, M. T. (2009). Introduction. Ecological immunology. Philosphical Transaction of the Royal Society of London B-Biological Sciences 364, 3-14.


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. International Journal for Parasitology 39, 221-229.


Cornet, S., Biard, C. & Moret, Y. (2009). Variation of immune defence among populations of Gammarus pulex (Crustacea: Amphipoda). Oecologia 159, 257-269.


Moret, Y. & Schmid-Hempel, P. (2009). Immune responses of bumblebee workers as a function of individual and colony age: senescence versus plastic adjustment of the immune function. Oikos 118, 371-378.


Ruiz-Gonzalez, M. X., Moret, Y. & Borwn M. J. F. (2009). Rapid induction of the immune density-dependent prophylaxis in adult social insects. Biology Letters 5, 781-783.



 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, 408-412.

Haine, E. R., Pollitt, L. C. Moret, Y., Siva-Jothy, M. T. & Rolff, J. (2008). Temporal patterns in immune responses to a range of microbial insults (Tenebrio molitor). Journal of Insect Physiology 55, 1090-1097.


De Souza, D. J., Vlaenderen, J. V., Moret, Y. & Lenoir, A. (2008). Immune response affects ant trophollactic behaviour. Journal of Insect Physiology 54, 828-832.


Haine, E. R., Moret, Y., Siva-Jothy, M. T. & Rolff, J. (2008). Antimicrobial defence and persistent infection in insects. Science 322, 1257-1259.



Moret, Y., Bollache, L. Watier, R. & Rigaud, T. (2007). Is the host or the parasite the most adapted in an amphipod-acanthocephalan relationship? A case study in a biological invasion context. International Journal for Parasitology 37, 637-644. [ pdf ]


Cornet, S., Biard, C. & Moret, Y. (2007). Is there a role for antioxidant carotenoids in limiting self-harming immune response in invertebrates? Biology Letters 3, 284-288. [ 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, 1834-1847. [ pdf ]



Moret, Y. (2006). 'Trans-generational immune priming': specific enhancement of the antimicrobial immune response in the mealworm beetle, Tenebrio molitor. Proceedings of the Royal Society B 273, 1399-1405. [ pdf ]



Siva-Jothy, M. T., Moret, Y. & Rolff, J. (2005). Insect immunity: An evolutionary ecology perspective. Advance in Insect Physiology 32, 1-48. [ pdf ]



Moret, Y. & Schmid-Hempel, P. (2004). Social life history response to individual immune-challenge of workers of Bombus terrestris L.: a possible new co-opérative phenomenon. Ecology Letters 7, 146-152. [ pdf ]



Brown, M.J.F., Moret, Y. & Schmid-Hempel, P. (2003). Activation of host constitutive defence by an intestinal trypanosome parasite of bumble bees. Parasitology 126, 253-260. [ pdf ]


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


Moret, Y. (2003). Explaining variable costs of the immune response: selection for specific versus non-specific immunity and facultative life history change. Oikos 102, 213-216. [ pdf ]


Moret, Y. & Siva-Jothy, M. T. (2003). Adaptive innate immunity? Responsive-mode prophylaxis in the mealworm beetle, Tenebrio molitor. Proceedings of the Royal Society B 270: 2475-2480. [ pdf ]


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



Doums, C., Moret, Y., Benelli, E. & Schmid-Hempel, P. (2002). Senescence of immune defence in Bombus workers. Ecological Entomology 27, 138-144. [ pdf ]



Moret, Y. & Schmid-Hempel, P. (2001). The Bioenergetics of the immune system. Science 292: 855-856.


Moret, Y. & Schmid-Hempel, P. (2001). Immune defence in offspring. Nature 414, 506. [ pdf ]



Moret, Y. & Schmid-Hempel, P. (2000). Survival for immunity: Activation of the immune system has a price for bumblebee workers. Science 290, 1166-1168. [ pdf ]


Moret, Y., Juchault, P. &. Rigaud, T. (2000). Wolbachia endosymbiont responsible for cytoplasmic incompatibility in a terrestrial crustacean: effects in natural and foreign hosts. Heredity 86, 325-332. [ pdf ]


Moret, Y.,(2000) The price of immune response: implications for natural selection . M/S médecine sciences 17, 270-271.



Book Chapter

 Rigby, M. C. & Moret, Y. (2000) Life-history trade-offs with immune defenses. In Evolutionary Biology of Host-Parasite Relationships: Theory Meets Reality. R. Poulin, S. Morand, and A. Skorping, Eds (Elsevier Science) pp 129-142.