Creatures in Crisis
Photograph of Pagai Island macaque (Macaca pagensis), recorded as Critically Endangered
Pagai Island macaque (Macaca pagensis). Image via Wikimedia Commons.

Critically Endangered

Pagai Island macaque

Macaca pagensis

The Pagai Island macaque, also known as the Pagai macaque or Bokkoi, is an Old World monkey endemic to the Mentawai Islands off the west coast of Sumatra.

Status
Critically Endangered
Scientific name
Macaca pagensis
Recorded from
Indonesia
CITES
Appendix II
Taxonomy
Mammalia · Primates · Cercopithecidae · Macaca

Appearance

Their backs have a dark brown coloration, and chestnut to pale ochre on the sides of the neck, the front of the shoulders and the undersides of this species. Legs are brown and their arms, reddish brown. The faces of Mentawai macaques are furless and black-skinned with brown eyes.

The males' body lengths range from 45–55 cm (18–22 in) and females' body lengths are around 40–45 cm (16–18 in).

Range and habitat

The macaques' natural habitat is rainforest, but they can also be found in riverine and coastal swamp-forests. Roaming, solitary Pagai Island macaques may challenge the dominant male for his position, leading to aggressive fights. The Pagai Island macaque, also known as the Pagai macaque or Bokkoi, is an Old World monkey endemic to the Mentawai Islands off the west coast of Sumatra.

The species' primary habitat is on the Mentawai Islands 150 km (93 mi) off the west coast of Sumatra. Due to deforestation by immigrants from the Indonesian mainland, the species is now listed as critically endangered on the IUCN red list.

Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.

Breeding

Females show fertility and willingness to mate by displaying their swollen and reddened genitals.

In crisis

It is listed as critically endangered on the IUCN Red List due to its ever-shrinking habitat. The alternating flooding and low water levels has also caused an increase in the population of malarial mosquitoes.

CITES lists this taxon on Appendix II. Confirm the current appendix on the CITES checklist.

Pagai Island macaque is Critically Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.

Sources

Written for this catalog from the English Wikipedia article on Pagai Island macaque, Wikidata item Q770434. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.

Photograph via Wikimedia Commons. Wikipedia · Wikidata · IUCN Red List.

Same genus

Photograph of Celebes crested macaque (Macaca nigra), recorded as Critically EndangeredCR

Celebes crested macaque

Macaca nigra
Photograph of Arunachal macaque (Macaca munzala), recorded as EndangeredEN

Arunachal macaque

Macaca munzala
Photograph of Crab-eating macaque (Macaca fascicularis), recorded as EndangeredEN

Crab-eating macaque

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Photograph of Lion-tailed Macaque (Macaca silenus), recorded as EndangeredEN

Lion-tailed Macaque

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Quick answers

What is Pagai Island macaque?
The Pagai Island macaque, also known as the Pagai macaque or Bokkoi, is an Old World monkey endemic to the Mentawai Islands off the west coast of Sumatra.
What is the conservation status of Pagai Island macaque?
Critically Endangered, as the IUCN category stored on Wikidata for Macaca pagensis. Confirm the official assessment on iucnredlist.org.
Where does Pagai Island macaque live?
The macaques' natural habitat is rainforest, but they can also be found in riverine and coastal swamp-forests.
Why is Pagai Island macaque in crisis?
It is listed as critically endangered on the IUCN Red List due to its ever-shrinking habitat.
Is this the IUCN Red List page for Macaca pagensis?
No. This is a researched catalog account. The Red List is the assessment.
Is Pagai Island macaque a pet?
An animal on this catalog is in crisis in the wild. Keeping one is usually the wrong question.