The Secretariat for the Environment had 180 days to constitute the mosaic, and was to provide the material, human and financial resources needed.

[3] As of 2016 the Serra de Paranapiacaba Mosaic has over 120,000 hectares (300,000 acres) and contains the largest remaining area of Atlantic Forest in Brazil.

Other conservation units in the mosaic are the Carlos Botelho, Alto Ribeira Tourist, Nascentes do Paranapanema and Caverna do Diabo state parks, Xitué Ecological Station, Serra do Mar Environmental Protection Area and Quilombos do Médio Ribeira Environmental Protection Area.

It includes other threatened species such as cougar (Puma concolor), South American tapir (Tapirus terrestris), bush dog (Speothos venaticus), pygmy brocket (Mazama nana) and southern muriqui (Brachyteles arachnoides).

It is estimated that there are just 250 individual jaguars in the states of Paraná, São Paulo and Rio de Janeiro, most of them in the mosaic area.