• Maître de Conférences, HDR

Doctorat, Université de Tours (France), 2003.
HDR, Université de Poitiers (France),

Responsabilités

  • Coordinatrice du programme Européen Erasmus Mundus Master Course -* International Master in Applied Ecology (www.emmc-imae.org)
  • Membre élue au CNU section 67 (Biologie des Populations et Ecologie)
  • Membre élue au Conseil d’UFR-SFA
  •  Correspondante Erasmus –Socrates et échanges internationaux pour la Biologie
  • Membre du conseil scientifique du Laboratoire Ecologie et Biologie des Interactions depuis 2012 -2015
  • Correspondante relations internationales de l’UMR 7267
  • Partenaire du Projet CAPES-COFECUB France/Brésil. Ecosystèmes limniques continentaux et conservation des écrevisses du genre Parastacus au sud du Brésil (2012-2015)
  • Partenaire du Projet AGROBIODIV (Conseil Régional Poitou-Charentes 2011-2013) : Biodiversité et Pratiques Agricoles : développement d’indicateurs de durabilité
  • Partenaire du Projet de recherche « Biodiversité » Région Nord pas de Calais/FRB. ResBioFonc : Evaluation et propositions de modes de gestion favorisant la REStauration d’une BIOdiversité FONCtionnelle en lien avec des changements d’usage des sols (2013-2015)
  • Collaborations avec l’Université de Copenhague, Université de Tunis, Université d’Otago
  • Encadrement de thèse M. Fortin (Impact de Wolbachia sur le choix du partenaire chez l’isopode terrestre Armadillidium vulgare: Ecologie comportementale et Ecologie chimique) (2013 – 2016).

Thèmes de Recherche/Research interest

Mes activités de recherche sont orientées sur l’étude des interactions symbiotiques chez les arthropodes (insectes sociaux et isopodes terrestres) selon une approche comportementale et chimique.
Mon premier projet de recherche a pour but d’étudier l’association fourmis/champignon/bactérie chez les fourmis champignonnistes notamment le rôle du champignon et des bactéries dans les mécanismes de reconnaissance individuel et coloniale chez les fourmis.
Depuis 2005, je m’intéresse également à l’étude sociogenomique de la polyandrie chez les reines d’abeilles, travail nécessitant une analyse pluridisciplinaire (comportementale, pheromonale et génétique). A savoir, l’effet de l’accouplement (quantité et qualité de l’insémination) sur les modifications physiologiques des reines ainsi que les conséquences sur l’organisation sociale de la colonie.
Plus récemment j’étudie les effets post-infections sur les interactions sociales envers des congénères immunologiquement stimulés ainsi que les impacts sur les composés chimiques émis par les individus et les modifications génétiques impliquées. De plus, j’effectue une étude comparative entre différente source de pathogènes (bactérie, virus). Projet financé par le Département de l’agriculture américain (USDA) sur lequel je suis Co Principale Investigatrice (2007-2010).
Plus récemment j’étudie l’influence de Wolbachia sur le comportement et les mécanismes de reconnaissance chez les isopodes terrestres.

Mots-clés : Ecologie comportementale, Ethologie, Ecologie chimique, Biologie moléculaire, Communication chimique, phéromones, Insectes sociaux (abeilles, fourmis, termites), Isopodes terrestres, Wolbachia, Symbiose

My research program seeks to understand intra-specific chemical recognition and communication on different models.
Chemical communication within isopod crustaceans and especially Armadillidium vulgare. These crustaceans are especially diverse, and are a common component of many ecosystems. My work on the Isopoda includes identification of species specifics chemical compounds and also characterisation of individual odor according to the mating status and the presence or absence of Wolbachia.
I’m conducting this research in collaboration with Didier Bouchon and Laurent Lemée (University of Poitiers). It is supported by funding from CNRS.

The post-mating effect on honey bee queen physiology, behavior and pheromone production. My current research focus is on the biology of honey bee (Apis mellifera) biology. Queen quality clearly plays a critical role in maintaining healthy and active honey bee colonies. My first study aimed at understanding the short term effect of mating in honey bee queens and the effects of mating number, mating quality, and quantity effect on different parameters. I looked at these effects via behavioral analyses, analytical chemistry on different queen glands, and functional genomics to determine the effects of mating parameters on honey bee queen pheromone profiles, physiology, gene expression, and queen-worker interactions.  Singly vs. multiply inseminated queens have significantly different pheromone profiles (Queen mandibular gland and Dufour’s gland), queen-worker interactions, gene expression level in the brain and fat bodies. The insemination volume and semen appear to have direct consequence on queen-worker interactions, queen gland chemical composition, and queen gene expression. The highest volume inseminated queens are the most attractive to workers, and queens inseminated with semen are more attractive than queens inseminated with saline solution.  These studies reveal how insemination quality affects the queen and the entire colony organization, and show the need to develop improved instrumental insemination techniques. The results of my research can now be applied to improve queen quality and thereby minimize how often colonies need to be restocked, which will directly benefit beekeepers. Moreover, such studies may identify genetic markers for queen quality that could be used for breeding programs.
I’m conducting this research in collaboration with Professor David Tarpy (NCSU) and Dr Christina Grozinger.  It is supported by funding from USDA-NRI, NCSU, and the Eastern Apiculture Society.

More informations :

The effect of activation of the immune system on nestmate recognition and chemical patterns. I also have developed another research program, which has been recently funded by the USDA, that focuses on the effect of activation of the immune system on social interaction and chemical communication. The research will include microarray analysis to correlate changes in social interactions with gene expression differences. Some of my previous research showed that activation of the worker immune system alters cuticular hydrocarbon profiles and social interactions (Richard et al. submitted).  These results suggest that disease and pathogen load are communicated to other individuals via changes in chemical profiles, and thus chemical communication may play an important role in disease transmission within social insect colonies.  I now want to further explore the effect of immune response on honey bee social interaction and chemical communication. Specifically I plan to stimulate different pathways of the immune system using a gram-negative bacteria, E. coli, (to stimulate the Imd arm of the immune system) and latex beads (to stimulate the encapsulation pathway which responds to viruses and other parasites). Also I wish to better understand the genes underlying the chemical profile changes by using micro-arrays. These studies will lay the groundwork for more extensive research into the multiple pathogens and pests that affect honey bees, including viruses (i.e., sacbrood and deformed wing virus), bacteria (i.e., Paenibacillus larvae, which causes American foulbrood disease), fungi (i.e., Ascosphaera apis, which causes chalkbrood disease), ectoparasites (i.e., Varroa mites and tracheal mites, Acarapis woodi), and endoparasites (i.e., Nosema apis).
I conduct this research collaboration with Dr. Arnaud Aubert (Université François Rabelais, Tours) and Dr Christina Grozinger (NCSU).  It is supported by funding from USDA-NRI (2007-2010), project where I am Co-Principal Investigator.

Compétences et savoir faire

  • Analyses comportementales
  • Analyses chimiques (Chromatrographie gazeuse, Spectrométrie de masse…)
  • Analyses moléculaire (qRT-PCR, micro-arrays)
  • Dissections fines (glandes d’insectes)

Publications représentatives/Selected publications

  • Beltran-Bech, S and Richard F-J., 2014. Impact of infection on mate choice. Animal Behaviour 90: 159-170.
  • Richard F-J, Hunt, J H.2013 Intracolony chemical communication in social insects. Guest review to Insectes sociaux 60 (2) 275-291.
  • Hunt J H and Richard F-J. 2013. Intracolony vibroacoustic communication in social insects (review Insectes sociaux. 60: 403-417.
  • Beauché F., Richard F-J., 2013 The best timing of mate search in Armadillidium vulgare (Isopoda, Oniscidea). Plos One 8(3): e57737.
  • Richard F-J., Holt H. H., Grozinger C M., 2012. Effects of immuno-stimulation on social behavior, chemical communication and genome-wide gene expression in honey bee workers (Apis mellifera). BMC Genomics 13, 558. Highly accessed.
  • Richard F-J., Coby S., Tarpy D.R., Grozinger C. M., 2011. Effects of instrumental insemination and insemination quantity on Dufour’s gland chemical profiles and Vitellogenin expression in honey bee queens (Apis mellifera). Journal of Chemical Ecology 37: 1027-1036.
  • Richard F-J., Aubert A., Grozinger C. (2008). Modulation of nestmate recognition by immune stimulation in honey bees, Apis mellifera. BMC Biology, 6:50.
  • Aubert A., Richard F-J. (2008). Social management of LPS-induced inflammation in Formica polyctena ants. Brain, Behavior, and Immunity, 22 (6) : 833-837.
  • Richard F-J., Poulsen M., Hefetz A., Errard C., Nash D. R., Boomsma J. J. (2007). A possible genetic background for the chemical recognition profiles of fungi cultivated by Acromyrmex leaf-cutting ants. Behavioural Ecology and Sociobiology 61 (11) : 1637-1649.

La photographie macro est une de mes passions. Vous pouvez les voir sur mon site internet : http://fjfourmi.free.fr/