Ontogenese de certains aspects de l'orientation du grillon des bois Nemobius sylvestris (Bosc), dans son milieu naturel.

The ontogeny of the orientation of the wood-cricket, Nemobius sylvestris, was studied experimentally in a variety of biotopes. In each experimental situation, the straightness of the routes taken by crickets improves with age. These results demonstrate that, depending on the variety of the constraints within each living area, various local individual solutions to the problem of orientation develop during ontogeny.