Many units consist of very small, isolated fragments and half of the threatened vertebrate species are not found in any protected area.
[1] Among all the categories of conservation units in Brazil, Natural Heritage Reserves (RPPNs) are the most important for establishing new protected areas, as most of the remaining forest is still privately owned.
Another strategy for creating new units is the ICMS Ecológico, a tax compensation granted to municipalities and states that have officially declared protected areas.
The protected areas in the Misiones Province, the Serra do Mar and southern Bahia comprise the largest continuous remnants of the Atlantic Forest.
In order to maintain biodiversity and important ecological processes, it is proposed to create wildlife corridors linking the conservation units in each of these regions.