In the last centuries man has profoundly modified the environment, drastically reducing biodiversity, that is the richness of species. The stable meadows in the agricultural landscape of the Po Valley play an important role as hot spots of floristic biodiversity that is inextricably linked to the whole ecosystem.
The lawn in fact provides food and shelter for micro mammals of different species and these, in turn, provide nourishment for numerous species of diurnal and nocturnal birds of prey.