The presence of around fifty European bison (Bison bonasus Linnaeus, 1758) on the territory of the Monts d'Azur Reserve in the Alpes-Maritimes department has improved its plant biodiversity and transformed its forest areas. The bison make an essential contribution to seed dispersal by transporting them in their fur and expelling them in their dung. In addition, by breaking the low branches and shrubs and tearing the trees' bark, bison create light holes favorable to the growth of multiple sun-loving species.