Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Mammal
- Order
- Primates
- Family
- Cercopithecidae
- Genus
- Procolobus
Habitat
Olive colobus monkeys primarily inhabit lowland rainforests and riverine forests in West Africa, including countries like Sierra Leone, Liberia, and Ivory Coast. They prefer dense canopy cover in primary and secondary forests, avoiding open areas and staying in the upper tree levels for safety and food. Their range is limited to tropical regions with high rainfall and abundant vegetation.
Diet
Olive colobus mainly eat leaves, particularly young and tender ones, along with fruits, flowers, and seeds found in the forest canopy. They are folivorous specialists, spending much of their day foraging in trees to consume these plant materials, and they typically feed during the day when they are most active. This diet requires them to process high-fiber foods efficiently with their specialized digestive systems.
Behavior
Olive colobus live in multi-male, multi-female groups of 15 to 30 individuals, exhibiting strong social bonds and cohesive movement through the trees. They are diurnal and arboreal, spending most of their time in the upper canopy to avoid ground predators, and they communicate with soft calls and leaps rather than aggressive displays. These monkeys are less territorial than some primates, often sharing ranges with other groups without frequent conflicts.
Conservation Status
The IUCN lists the olive colobus as Vulnerable due to habitat loss from deforestation and hunting for the bushmeat trade. Population trends are declining, with major threats including logging and human encroachment in their West African range.