Collared titi
Callicebus torquatus
SUBFAMILY
Callicebinae
TAXONOMY
Callicebus torquatus Hoffmannsegg, 1807, Brazil.
OTHER COMMON NAMES
English: Widow monkey, yellow-handed titi; Spanish: Cotoncillo, mono viudo, tocón, viduita.
PHYSICAL CHARACTERISTICS
Head and body length is 9.1–14.2 in (232–260 mm); tail length is 16.7–19.3 in (425–493 mm); and weight is 38.8–52.9 oz (1,100–1,500 g). They have a dark brown body, black tail, yellow hands, and a white collar around the neck. The tail is long, thickly haired, and non-prehensile.
DISTRIBUTION
Western Amazon Basin lowlands of Colombia, Venezuela, Peru, and Brazil.
HABITAT
Primary and secondary terre firme forests, forests on white sands and black-water streams.
BEHAVIOR
Diurnal and arboreal; very active. Small territories are defended by vocal duets of mated pair at daybreak. Group members twine tails together when sleeping, grooming, and dueting. They forage in the middle and upper canopy and rest in the lower canopy.
FEEDING ECOLOGY AND DIET
Fruit and seeds, leaves, and insects.
REPRODUCTIVE BIOLOGY
Monogamous. Females give birth to a single offspring at the beginning of the rainy season. Males carry infants the majority of the time, beginning at birth. Infants are weaned at 4–5 months. Females become sexually mature at 24–36 months, males at 24–42 months. Both sexes leave the group at three years of age.
CONSERVATION STATUS
CITES Appendix II. Patchily distributed, locally common; not threatened
SIGNIFICANCE TO HUMANS
None known.
