Behaviour of rodents during the process of collaboration with oak trees for their participation in the dissemination of acorns, seed of oak trees. How do rodents eat acorns, where do they open them, do they keep the embryo? Where do they eat them, where do they transport them, where do they bury them? Which species of oak acorns do rodents prefer? All these questions condition the participation of rodents in the process of dissemination and expansion of oak stands. What factors condition this participation? These are the questions, the concerns that have so far directed our research work