White-eared titi commencing activity around sunrise and continuing until sunset. Food availability may influence activity times; if there is an abundance of food in the warmer months when plants are fruiting titi monkeys may start earlier, or if there is a lack of food, titi monkeys may remain at the feeding tree into the evening. The titi monkey usually rests during the middle of the day and has two main feeding periods, in the morning and in the afternoon. It has an increased period of feeding towards the end of the day. In total, the titi monkey is active for an average
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