 Other types of sustainable use unit are significant ecological interest area, national forest, extractive reserve, fauna reserve, sustainable development reserve, and natural heritage particular reserve.As of 1993 APAs were defined as areas where wildlife, genetic diversity and other natural resources were to be conserved through adequate and sustainable use for the benefit of the local population, following a management plan to harmonise the various human activities.The APA was the closest concept to the Biosphere Reserve in Brazilian law, the main difference being that a strictly protected core zone was not required.