Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Primates
- Family
- Cercopithecidae
- Genus
- Presbytis
Habitat
The Mentawai langur is endemic to the Mentawai Islands off the coast of Sumatra, Indonesia, primarily inhabiting tropical rainforests. They prefer dense, undisturbed primary and secondary forests with tall canopies for movement and shelter. Their range is restricted to these isolated islands, making them sensitive to habitat fragmentation.
Diet
Mentawai langurs mainly eat leaves, fruits, and young shoots from a variety of forest plants, with a preference for nutrient-rich foliage. They are folivorous and spend much of their day foraging in the treetops, typically feeding during the early morning and late afternoon. Their feeding behavior involves selective browsing to avoid toxic plants.
Behavior
Mentawai langurs live in small social groups of 5-15 individuals, typically led by a dominant male, and communicate through vocalizations and facial expressions. They are diurnal and highly arboreal, spending most of their time in the forest canopy to avoid ground predators. These groups exhibit territorial behavior, defending their home ranges with alarm calls, and engage in social grooming to strengthen bonds.
Conservation Status
The IUCN status of the Mentawai langur is Endangered, with populations declining due to habitat loss from logging and agriculture. Major threats include hunting for the pet trade and fragmentation of their rainforest habitats.