Private natural heritage reserve (Brazil)

[1] In 1977 the legal entity of a "Private Refuge for Native Animals" was introduced, in which hunting would be banned.

In 1990 the new name "Private Natural Heritage Reserve" was adopted with new rules, including the possibility of recognition of RPPN's by state environmental agencies, a more democratic and perhaps less bureaucratic process.

[1] As of January 2009 it was estimated that there were between 856 and 930 RPPN's in Brazil covering about 672,663 hectares (1,662,190 acres), including units recognized at the federal, state and municipal levels.

Such units allow sustained use of renewable environmental resources, maintaining biodiversity and other ecological attributes.

Sustainable use in this case includes scientific research and public visits for tourism, recreation and education.