Peruvian Yellow-tailed Woolly Monkey Lagothrix flavicauda

Peruvian Yellow-tailed Woolly Monkey Lagothrix flavicauda

Peruvian Yellow-tailed Woolly Monkey Lagothrix flavicauda


Critically Endangered

Peruvian Yellow-tailed Wooly Monkeys live in #Peru #SouthAmerica. Known for their distinctive woolly coats, hooting calls. #Criticallyendangered from #deforestation Join the #Boycott4Wildlife against brands causing #deforestation

The Yellow-tailed Woolly Monkey is listed as Critically Endangered due to a suspected population decline of greater than 80%, where the causes of reduction have not ceased, and is based on a corresponding decline of suitable, available habitat over the course of 50 years (ca 1985-2030; representing two prior generations and one future generation) and continued hunting.

IUCN red list

Peruvian Yellow-tailed Woolly Monkeys are social animals, active during the daylight hours. They form groups of 4-30 individuals, including a single dominant male, multiple mature individuals of both genders and young monkeys. Communication between communities is performed through vocalizations such as a loud, barking call, which is commonly used as an alarm call or a territorial display.

The Yellow-tailed Woolly Monkey is endemic to the montane rain forests and cloud forests of the Departments of San Martín and Amazonas in the Peruvian Andes, south and east of the Río Marañón, at altitudes of 1,100 to 2,700 asl.

Relative inaccessibility of this species’ cloud forest habitat served as protection for The Yellow-tailed Woolly Monkey up until the 1950’s. Subsequently, road construction, selective logging and subsistence hunting have led to deforestation, forest fragmentation and population declines. More recently, mining operations have increased in this high mountain region. Leo Luna (1984) estimated 11,240 km² of remaining suitable forest habitat for this species in 1981. Buckingham and Shanee (2008) estimated 6,302 km² remaining in 2008, representing a prior average annual forest loss of over 180 km², and noted that 70% of the remaining forest habitat was unprotected. Peruvian ministry reports and GCF data suggest a slightly higher annual forest loss rate (210 km²/year) for San Martin Province, the core of this species range, over the period 2010-2017. These data would seem to suggest that the loss of nearly all remaining unprotected habitat within this species’ range is possible, if current rates of deforestation continue to the year 2030.

Peruvian Yellow-tailed Woolly Monkey Lagothrix flavicauda
Peruvian Yellow-tailed Woolly Monkey Lagothrix flavicauda

Additionally, the Yellow-tailed Woolly Monkey is heavily hunted by indigenous communities, market hunters and in retaliation for crop damage. Infants are also routinely taken as pets when mothers are killed.

You can support the survival of this beautiful animal

Neotropical Primate Conservation


Further Information


Shanee, S., Cornejo, F.M., Aquino, R., Mittermeier, R.A. & Vermeer, J. 2021. Lagothrix flavicauda (amended version of 2019 assessment). The IUCN Red List of Threatened Species 2021: e.T39924A192307818. Downloaded on 06 June 2021.

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Published by Palm Oil Detectives

Hi, I’m Palm Oil Detective’s Editor in Chief. Palm Oil Detectives is partly a consumer website about palm oil in products and partly an online community for writers, scientists, conservationists, artists and musicians to showcase their work and express their love for endangered species. I have a strong voice for creatures great and small threatened by deforestation. With our collective power we can shift the greed of the retail and industrial agriculture sectors and through strong campaigning we can stop them cutting down forests. Be bold! Be courageous! Join the #Boycott4Wildlife and stand up for the animals with your supermarket choices

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