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Institut de
Recherche sur la
Biologie de l'
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People

Virginie
PARTY
Research Engineer CDD
Team: Ecologie Cognitive
Tél : 02 47 366976

Technical skills:

 

Ethology:

-          Behavioral observations in lab and field

-          Choice tests in arena, 4 arm olfactometer or Y maze

-          Tracks analysis from locomotion compensator

-          Proboscis extension

 

Electrophysiology:

-          Electroantennography

-          Single sensillum recordings (tip-recording and tungsten)

 

Molecular biology:

-          Notions in RNA extraction, cDNA synthesis, PCR, RT-PCR and quantitative PCR

 

Insect rearing:

-          Spodoptera littoralis, Rhynchophorus ferrugineus, Achroia grisella &  Ephippiger ephippiger

 

Research theme:

 

 

 

Currently in a postdoctoral position in the Cognitive Ecology group, I participate in EVOLCHOR project developed by Michael Greenfield and supported by the ANR (2012-2015).

This project aims to study the evolution of the chorus in acoustic animals and more particularly in the grasshopper Ephippiger ephippiger.

 

 Photo: Michel Renou

 

Ephippiger ephippiger is an acoustic grasshopper, with atrophied wings used for sound emission (stridulations), belonging to the subfamily Bradiporinae, found in southern France. In this species, males gather in chorus to sing and attract females. Receptive females orient towards singing males and have preferences for males with longer calls, faster call rhythms or males with leading calls.

 

 

 Ephippiger ephippiger calls (3 syllabes)

 

Neighboring males adjust their call rhythms with a phase-delay mechanism in order to produce leading calls.

 

Ephippiger ephippiger are distributed in isolated patches between which gene flow may be low. Recordings of male song and tests of female preference for male song indicate considerable inter-patch variation in signal (syllable number, rhythm), signal interaction, and preference characters.

 

This study of fifteen different populations presents the first analysis of the proposition that the structure of the chorus represents an emergent property rather than an adaptation per se?

 

This project is structured into five main tasks presented below:

 

 


 

Major publications

 

Thématique actuelle :

 

  • Party V., Brunel-Pons O., Greenfield MD. (2014) Priority of precedence: receiver psychology, female preference for leading calls and sexual selection in insect choruses. Animal behaviour 87:175-185.

 

 

Thématique précédente (Doctorat):

 

  • Party V., Hanot C., Schmidt-Büsser D., Rochat D., Renou M. (2013) Changes in odour background affect response to pheromone in moths. PLoS One 8(1): e52897.

 

  • Minoli S., Kauer I., Colson V., Party V., Renou M., Anderson  P., Gadenne C., Marion-Poll F., Anton S. (2012) Reciprocal cross-modal sensitization between sensory cues involved in feeding and reproduction in a male moth. PLoS One 7(3): e34141.

 

  • Rouyar A., Party V., Presěrn J., Blejec A., Renou M. (2011) An odorant background affects the coding of stimulus intermittency by olfactory receptor neurones. PLoS One 6(10): e26443.

 

  • Bigot L., Shaik H. A., Bozzolan F., Party V., Lucas P., Debernard S., Siaussat D. (2011) Peripheral regulation by ecdysteroids of olfactory responsiveness in mal Egyptian cotton leafworms, Spodoptera littoralis. Insect Biochemistry and Molecular Biology 42:22-31.

 

  • Durand N., Carot-Sans G., Chertemps T., Bozzolan F., Party V., Renou M., Debernard S., Rosell G., Maïbèche-Coisné M. (2010) Characterization of an antennal carboxylesterase from the pest moth Spodoptera littoralis degrading a host plant odorant. PLoS One 5(11):e15026.

 

  • Party V., Hanot C., Saïd I., Rochat D., Renou M. (2009) Plant terpenes affect intensity and temporal parameters of pheromone detection in a moth. Chemical Senses 34:763-774.

 

 

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