Brachyteles arachnoides or better known as the southern muriqui is critically endangered due to the high fragmentation of the Atlantic Forest. During the months of September and October of the year 2018, a systematic observation was made in the Carlos Botelho State Park, San Miguel de Arcanjo, Brazil aimed at the identification and ecological characterization of the sleeping sites, taking into account the physiological characteristics of the trees used by the muriqui to spend the night.

The sleeping sites (n=10) are located in a semi-deciduous forest with a high variety of tree species. The data obtained from these trees indicate that on average they reach 20 meters, with the preferred height for sleeping between 11 and 14 meters. This is accompanied by the choice of spaces located on slopes with rivers, great connectivity between trees and quick access to food.

The results obtained have allowed us to contemplate on the importance of the concept of territory and home within the community development of southern muriqui. On the other hand, this research aims to generate a reflection on the politicization of conservation efforts of of non-human bodies, to achieve a harmonious and horizontal development between human and non-human populations.