Conserving the northern muriqui in Santa Maria de Jetibá, Espírito Santo

Abstract

The northern muriqui is known to occur in only 12 localities, with small populations restricted to isolated forest fragments. In the state of Espírito Santo the species is currently confirmed in only three localities: in and around the Augusto Ruschi Biological Reserve; the Caparaó National Park (which extends into the state of Minas Gerais); and forests in the municipality of Santa Maria de Jetibá. We are studying the muriquis in these last two areas. Both are in the central-southern montane region of the state. In the Caparaó Natoinal Park the aim is to census the population and to estimate its social and demographic composition. The muriquis have been found in part of the 18,200 ha on the Espírito Santo side of the park, and we believe that this population is the largest in the state. In Santa Maria de Jetibá, we hope to improve the prospects for the survival of the muriquis through the following activities: 1) monitoring and managing the populations; 2) studying genetic variability and endogamy; 3) developing a conservation education program, 4) testing the potential for ecotourism; and 5) promoting actions to improve the conservation and restoration of Atlantic Forest fragments. To date, we have found 84 individuals living in 13 fragments, with subpopulations varying from 1 to about 16 individuals. We have information on their presence in another 11 fragments. We have successfully translocated one young female and are monitoring its behav- ior. The current population and genetic data suggest that we need to improve the forest connectivity in order to reduce the fragmentation and isolation of the muriqui groups. The combined efforts of scientists, government, and the local people will be fundamental to achieve this.