the potential available range of habitat. Populations are present in several reserves where logging is prohibited, including Gurupí Biological Reserve, Tapirapé Biological Reserve, and Caxiuanã National Forest. In central-western Brazil, in the southern part of their range, most black-handed tamarins are only able to survive in the remains of forested areas on private properties. References black tamarin Mammals of Brazil Endemic fauna of Brazil black tamarin