Permanent Preservation Areas (PPAs) have important functions for the conservation of the environment. In order to recover an area of 1 hectare, approximately 1,112 seedlings are planted during the rainy season. Only in the next rainy season is it possible to assess the evolution to define the next actions: enrich the site with new species or plant the initial seedlings again. It is expected that about 10% to 20% of the seedlings do not develop. When cattle are present in the PPA, this rate exceeds 50% and may reach 100%. This is equivalent to a loss of over 500 seedlings per hectare.