Collared titi National Park and El Tuparro National Park and in the two biological preserves Nukak and Puinawai. Actually a clarification of the taxonomic status of many populations is needed to be able to monitor their conservation state. Collared titi The collared titi (Cheracebus torquatus) is a species or a closely related complex of species of titi, a type of New World monkey, from South America. At the end of the 1980s the genus "Callicebus" was revised from the Hershkovitz concept of three species to thirteen neotropical species, with the collared titi, "Callicebus torquatus", having four subspecies. In 2001 Colin Groves elevated
Ornate titi ornate titi spends a significant portion of the day sleeping. They usually spend around 60% of their time sleeping, which hugely differs from the white-tailed titi ("P. discolor"), which spends less than 25%. The ornate titi is diurnal, rising early in the morning and remaining awake and active until sunrise, however this depends on the season, due to the change in availability in food, particularly fruit, which tends to only appear in abundance in the warmer months. In contrast, an ornate titi may stay in sleeping site for up to four hours after sunrise in colder months. Usually, a titi's