Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Primates
- Family
- Cercopithecidae
- Genus
- Trachypithecus
Habitat
Delacour's langurs primarily inhabit limestone karst forests and hilly regions in northern Vietnam. They prefer areas with dense vegetation, caves, and cliffs for shelter and foraging. These environments provide both food sources and protection from predators.
Diet
Delacour's langurs mainly eat leaves, buds, fruits, and flowers from various forest trees and shrubs. They exhibit selective feeding behavior, often choosing young leaves for higher nutrition, and feed primarily during the early morning and late afternoon. This folivorous diet helps them thrive in their forested habitats.
Behavior
Delacour's langurs live in social groups of 5-20 individuals, typically led by a dominant female, and exhibit strong bonding through grooming and vocalizations. They are diurnal and arboreal, spending most of their time in trees to forage and rest, while being territorial and using alarm calls to warn of dangers. Males may engage in displays to defend the group from intruders.
Conservation Status
Delacour's langur is classified as Critically Endangered by the IUCN due to habitat loss from deforestation and hunting for the wildlife trade. Population trends show a continued decline, with major threats including fragmentation of limestone forests.