DELACOUR'S LANGUR
Trachypithecus delacouri
DESCRIPTION
Delacour's Langur (Trachypithecus delacouri) is a striking primate known for its distinctive black and white coloration, with a prominent white beard and a long tail. This species is primarily arboreal, spending most of its time in the trees of its forest habitat, where it is agile and adept at leaping between branches. Socially, Delacour's Langurs are known to live in small groups, exhibiting complex social behaviors and vocalizations that facilitate communication among members.
FUN FACTS
- Delacour's Langur is named after the French zoologist Pierre Delacour, who contributed significantly to the study of primates
- | These langurs are known for their unique vocalizations, which include a variety of calls used for communication within their groups, showcasing their complex social structure
QUICK INFO
Lifespan15-20 years in the wild, up to 30 in captivity
Average Weight6-10 kg
Average Length50-70 cm
Diet TypeHerbivore
Social Structuregroup — they typically live in small family groups consisting of a few individuals.
Activity PatternDiurnal
Breeding SeasonYear-round, with peaks depending on environmental conditions
- Habitat
- This species inhabits subtropical and tropical moist forests, often found in hilly or mountainous regions. They prefer areas with dense canopy cover, which provides both food and protection from predators.
- Biomes
- Tropical Rainforest, Subtropical Forest
- Native Range
- Delacour's Langur is native to northern Vietnam, specifically in the regions of the Red River Delta and surrounding areas.
- Continent
- Asia
- Countries
- Vietnam
- Diet
- Delacour's Langur primarily feeds on leaves, fruits, and flowers, showcasing a preference for young leaves and tender shoots. Their diet is largely folivorous, reflecting their adaptation to a herbivorous lifestyle.
- Diet Type
- Herbivore
- Favorite Food
- young leaves, fruits, flowers
- Social Structure
- group — they typically live in small family groups consisting of a few individuals.
- Activity Pattern
- Diurnal
- Group Size
- 5-15
- Territorial
- 1
6-10 kg
Weight
50-70 cm
Length
- Coloration
- black body with white facial markings and a long tail
- Sexual Dimorphism
- males are generally larger than females
- Lifespan
- 15-20 years in the wild, up to 30 in captivity
- Gestation Period
- approximately 200 days
- Offspring per Birth
- 1
- Sexual Maturity
- 3-4 years
- Breeding Season
- Year-round, with peaks depending on environmental conditions
CR
Critically Endangered
IUCN Red List Status
- Population Status
- The population of Delacour's Langur is critically low, with estimates suggesting fewer than 250 individuals remain in the wild.
- Wild Population Estimate
- less than 250
- Population Trend
- Decreasing
- Endangered
- 1
- Threats
- The main threats to Delacour's Langur include habitat loss due to deforestation and hunting for bushmeat and the illegal pet trade. These pressures have significantly reduced their population and fragmented their habitat.
- Conservation Program
- Conservation efforts are underway, including habitat protection and awareness campaigns, but challenges remain due to ongoing deforestation.
- Predators
- Main predators include large birds of prey and possibly other carnivorous mammals, although specific predator species are not well-documented.
- Defense Mechanisms
- They rely on their agility and ability to escape into the treetops to avoid predators.
- Found in Zoos
- Rare