Bonifácio, K. M., E. M. X. Freire, and A. Schiavetti. “Cultural Keystone Species of Fauna As a Method for Assessing Conservation Priorities in a Protected Area of the Brazilian Semiarid”. Biota Neotropica, vol. 16, no. 2, June 2016, //www.biotaneotropica.org.br/BN/article/view/1369.