Macaca Pagensis

Macaca pagensis (Mentawai Island Macaque)

Macaca pagensis (Mentawai Island Macaque)
Other names: Beruk Mentawai; Bokoi or Bokkoi

Taxonomy:
Suborder: Haplorrhini
Infraorder: Simiiformes
Superfamily: Cercopithecoidea
Family: Cercopithecidae
Subfamily: Cercopithecinae
Genus: Macaca
Species: Macaca pagensis (Mentawai macaque)

Physical characteristics:

Head and body length:

• Females: 467 – 564 mm
• Male: 495 – 564 mm

Tail length

• Females 130 – 253 mm
• Males: 160 – 245 mm

Weight

• Females 4.7 – 10.9 kg
• Males 6.2 – 14.5 kg

Bokoi hair is dark brown on the back while on the neck, shoulders and bottom are pale brown. Brown feet. The difference between bokoi and other types of beruk lies in the hair on the cheeks and crown. The biliary cheeks are darker than the other, the bokoi crown is brown, the hair on the forehead is longer. Bokoi has cheek pockets that are clearly visible. The back and hands are often used to carry food. Bokoi is diurnal, arboreal and terrestrial. More on the ground, occasionally in the lower canopy.

Habitat:

• Lowlands, primary and secondary forests
• Coast
• Swamp
• Mountains with an altitude of 1700 m

Feed:

• Fruits and seeds: 73.8%
• small animals (insects, chicks, crabs, termites): 12.2%
• Leaves; 5.4%
• Shoots: 3%

Reproduction:

• Welcomed: 12 months
• Adult sex: 35 months
• Estrus cycle: 30-35 days
• Pregnancy: 171 days
• Birth distance: 12-24 months
• Life span: 26 years
• There is no mating season

Lokomosi: Quadrupedal

Social structure:

• Multimale-multifemale groups, with a ratio of 1 male 5-8 females.
• Females have a matrilineal hierarchy
• Group size: 15 – 40
• Home range: 62 – 828 ha.

Status: Endangered

Editor: Permanawati
Photo: Arkive

Reference:
The Piectorial Guide to The Living Primates, Jane Goodall. Pogonias Press 1996 Eas Hampton, New York