Sur ce site

Accueil > Annuaire > Renaud Sabrina > Projets de recherche > Adaptation des souris et réponse aux changements de l’environnement

Adaptation des souris et réponse aux changements de l’environnement

The mandible is under very different developmental constraints compared to the tooth. As bone structure, it remodels all along an animal’s life in response to muscular functioning. Its shape can thus vary in a plastic way depending on the diet (Anderson, Renaud & Rayfield 2014).

Because of this relationship between the diet and the shape of a structure bearing teeth and masticatory muscles, the mandible diverged in mouse populations from subantarctic islands where mice developed a feral way of life completely different from their usual commensal habitat (Renaud et al. 2013).

Microevolution or plasticity ? Important environmental changes occur these last decades on these subantarctic islands (climatic change, new invasive species, eradication...). The mandible of the mice responded to these changes over a time laps of 15 years (Renaud et al. 2015).

Emilie A. Hardouin (Bournemouth University) ; Jean-Louis Chapuis & Benoit Pisanu (MNHN Paris).

The plastic response of bone structures to changes in the way of life is at the core of the project DOMEXP– Experimental domestication of the wild boar.