It forms a continuous protected area with the Aguapeí State Park, which is part of the environmental compensation for the Eng Sérgio Motta Dam.

[2] The reserve protects one of the last naturally flooded areas of the state, home to marsh deer and other species typical of this environment.

It should reduce sand and clay mining, and strengthen enforcement against hunting the deer for sale of antlers or stuffed heads.

Vulnerable, threatened or endangered fauna include horned screamer (Anhima cornuta), wood stork (Mycteria americana), black-collared hawk (Busarellus nigricollis), jabiru (Jabiru mycteria), American pygmy kingfisher (Chloroceryle aenea), toco toucan (Ramphastos toco), blue-and-yellow macaw (Ara ararauna) and South American tapir (Tapirus terrestris).

[1] The "Pantanal Paulista Wildlife Refuge", as it was called in earlier discussions, would be part of the proposed Trinational Biodiversity Corridor, which aims to provide forest connections between conservation units in Brazil, Paraguay and Argentina in the Upper Paraná ecoregion.