Coimbra Filho's titi population of only 500 to 1000 individuals remaining. Current studies have shown that due to the species relatively large number of populations, as well as its tolerance to habitat loss and fragmentation, the species has a positive outlook. However action must be taken to prevent further habitat loss and fragmentation from threatening the species, as well as the implementation of plans to aid in the species' sustainability. Coimbra Filho's titi Coimbra Filho's titi ("Callicebus coimbrai") or just Coimbra's titi is a species of titi, a type of New World monkey, endemic to forests in the Brazilian states of Bahia and
White-eared titi be quite tolerant of habitat disturbance. In Bolivia, the white-eared titi is found in the upper parts of the Mamoré, Grande, and San Miguel river basins, east of the Manique River in Beni and in the forests surrounding the city of Santa Cruz de la Sierra. Its range extends north to southern Rondônia in Brazil. The white-eared titi is considered to be of least concern on the International Union for Conservation of Nature (IUCN) Red List. The species is not considered threatened due to its adaptability and abundance over a relatively wide range, and despite having a decreasing population trend