For 10 years, in the Atlantic Forests, researchers compared forests used by herbivorous mammals, including the lowland tapir (Tapirus terrestris) and the white-lipped peccary (Tayassu pecari), and areas in which these animals have been barred from access due to exclosure plots (fences). The main conclusion is that the areas used by these herbivores show lower loss of diversity than fenced areas.
Click here for original story, Large wild herbivores reduce the fast biodiversity decline of plants in a tropical forestry hotspot
Source: Phys.org