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Perception Channels: tactile ; chemical
Callimico goeldii are listed as Appendix I under CITES, therefore commercial import and export has been banned. This is not well enforced in Bolivia. Loss of habitat and dangers from hunting and trapping are severely threatening Callimico goeldii populations. They seem to do well under captive conditions, and are housed in a number of zoos worldwide with highly successful breeding programs at the Jersey Wildlife Preservation Trust (GB) and the Brookfield Zoo (Chicago).
(Pook 1990; Thornback and Jenkins 1982; Wilson and Reeder 1993;)
US Federal List: endangered
CITES: appendix i
IUCN Red List of Threatened Species: vulnerable
N/A
Because they are rare and internationally protected, poachers, particularly in Bolivia, are able to sell Callimico goeldii for large profits on the black market. BR
(Pook 1990)
The diet of Callimico goeldii consists primarily of fruits, insects, and small vertebrates. A group of Goeldi's monkeys will travel and feed in fruiting trees. Competition for fruit seems not to be a problem. They hunt individually, leaping to the ground to obtain small verebrates.
(Pook 1990)
Animal Foods: insects
Plant Foods: fruit
Primary Diet: omnivore
Located between 1 degree north and 13 degrees south latitude in the northern Amazon forests, Callimico goeldii can be found in southern Colombia, eastern Ecuador, eastern Peru, western Brazil, and northern Bolivia. BR
(Burton 1987; Nowak 1999; Pook 1990; Thornback and Jenkins 1982)
Biogeographic Regions: neotropical (Native )
Pook (1990) reports that Callimico goeldii inhabit areas of the Amazon rainforest that have patchy canopy cover and strong undergrowth. Thornback and Jenkins (1982) describe it as "shabby forest such as mixed forest, scrub, second-growth woods, bamboo forests, and forest with discontinuous canopies and well-developed scrub. The majority of their time is spent at levels of less than 5 meters with forays to higher elevations for fruit.
(Pook 1990; Thornback and Jenkins 1982)
Terrestrial Biomes: forest ; rainforest ; scrub forest
Average lifespan
Status: captivity: 10.9 years.
Average lifespan
Status: captivity: 9.0 years.
Average lifespan
Sex: male
Status: captivity: 15.8 years.
Average lifespan
Status: captivity: 17.9 years.
Average lifespan
Sex: female
Status: captivity: 16.1 years.
According to a study by Hershkovitz (1977), Callimico goeldii are small with a length of 210-234 mm, and a tail length of 255-324 mm. They are dark brown or black with possible white areas on and around the face. Longer hairs form "a mane [that] drapes from the neck and shoulders and extend also from above the base of the tail" (Nowak 1999). Adults have pale rings on the tail. Other characteristics include clawlike nails on all of the digits excluding the large toe and a dental formula of 2/2, 1/1, 3/3, 3/3.
(Hershkovitz 1977; Nowak 1999; Pook 1990)
Range mass: 393 to 860 g.
Other Physical Features: endothermic ; bilateral symmetry
Female Callimico goeldii normally give birth to single offspring. Females are polyestrous and the estrous cycle averages 23 days with a duration of one week. Gestation averages around 155 days allowing multiple births within a year. Young reach sexual maturity as early as 14 months of age and have been observed in captivity to live at long as 18 years.
(Burton 1987; Nowak 1999: Pook 1990; Ross 1991)
Breeding interval: Females may breed twice per year.
Average number of offspring: 1.
Average gestation period: 155 days.
Average weaning age: 12 weeks.
Average age at sexual or reproductive maturity (female): 14 months.
Average age at sexual or reproductive maturity (male): 14 months.
Key Reproductive Features: iteroparous ; gonochoric/gonochoristic/dioecious (sexes separate); sexual ; viviparous
Average birth mass: 48.15 g.
Average gestation period: 153 days.
Average number of offspring: 1.
Average age at sexual or reproductive maturity (male)
Sex: male: 395 days.
Average age at sexual or reproductive maturity (female)
Sex: female: 365 days.
Young weigh 30-60 grams and nurse for 12 weeks. At 4 weeks of age, the young are able to ingest solid food given by adults, and at 7 weeks of age, the young begin to forage. The mother carries the young for the first 2 weeks. During the third week, the father carries the young, while in the fourth week, responsibility for carrying young is taken up by the entire group.
Parental Investment: pre-fertilization (Provisioning, Protecting: Female); pre-hatching/birth (Provisioning: Female, Protecting: Female); pre-weaning/fledging (Provisioning: Female, Protecting: Male, Female); pre-independence (Protecting: Male, Female); extended period of juvenile learning
