The olive colobus will also benefit from further study and observation.

The olive colobus is mainly folivorous, although it may consume fruits and seeds when available.

The olive colobus is classified as near threatened by the IUCN Red List, the cause of its decline attributed to habitat loss and hunting.

In addition to serving as a means of predator avoidance, the close association with Diana monkeys is a mechanism used by male olive colobus monkeys to obtain new female mates.

The reserve also shelters the endemic Sclater's guenon and other IUCN Red List species Olive Colobus and Niger Delta Red Colobus.

Five mammal species of the Taï National Park are on the red list of threatened species: Pygmy Hippopotamus, Olive Colobus monkeys, Leopards, Chimpanzees and Jentink's Duiker.

The olive colobus is also covered in many protected areas including Taï National Park on the Ivory Coast of West Africa, which was declared a Forest and Wildlife Refuge in 1926 and accepted as a biosphere reserve in 1982.

The olive colobus monkey (Procolobus verus), also known as the Green colobus or Van Beneden's colobus, is a species of primate in the Cercopithecidae family.