Colombian Red Howler
EN

Colombian Red Howler

Alouatta seniculus

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Colombian_red_howler

Overview

The Colombian red howler or Venezuelan red howler is a South American species of howler monkey, a type of New World monkey, found in the western Amazon Basin in Venezuela, Colombia, Ecuador, Peru and Brazil. The population in the Santa Cruz Department in Bolivia was split off as a separate species, the Bolivian red howler, in 1986, and more recently, splitting off the population in northeastern South America and Trinidad as the Guyanan red howler has occurred. All howler monkeys belong to the family Atelidae and the infraorder Platyrrhini.

The Colombian Red Howler faces severe population declines primarily due to extensive deforestation and habitat fragmentation across its range in South America. Agricultural expansion, cattle ranching, logging, and human settlement development have dramatically reduced and isolated forest patches, making populations vulnerable to local extinctions.

Threat summary

Habitat

TERRESTRIAL· major

Frequently asked questions

Why is Colombian Red Howler classified as Endangered?
Colombian Red Howler is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. The Colombian Red Howler faces severe population declines primarily due to extensive deforestation and habitat fragmentation across its range in South America. Agricultural expansion, cattle ranching, logging, and human settlement development have dramatically reduced and isolated forest patches, making populations vulnerable to local extinctions.
Where does Colombian Red Howler live?
Colombian Red Howler occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Colombian Red Howler?
The main threats to Colombian Red Howler are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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