Mammals
Grey-Cheeked Mangabey
Lophocebus albigena · also called white-cheeked mangabey
A booming whoop-gobble call rolls across the Central African rainforest canopy as a grey-cheeked mangabey announces its location, a sound powerful enough to keep scattered troop members in contact across a kilometre of dense forest.
Overview
The grey-cheeked mangabey, Lophocebus albigena, is a semi-terrestrial monkey native to rainforest habitat across a broad range spanning Central Africa. Its far-carrying whoop-gobble call, distinctive pale cheek tufts, and loose foraging partnerships with hornbills make it one of the more acoustically and ecologically interesting monkeys found anywhere in Central African rainforest.
A voice that holds the group together
Scattered across a dense rainforest canopy, grey-cheeked mangabey groups rely on a booming call that can carry for a kilometre, a simple but effective solution to staying in contact in habitat too thick for visual signals to work reliably.
Status
Least Concern, though ongoing habitat loss and hunting pressure across Central Africa have contributed to a decreasing population trend.
Grey-Cheeked Mangabey: common questions
Why does the grey-cheeked mangabey call so loudly?
This species produces a loud, distinctive whoop-gobble call that can carry for roughly a kilometre through dense rainforest, used to advertise location and maintain contact between groups that might otherwise lose track of one another across thick forest.
How is the grey-cheeked mangabey related to baboons?
This species belongs to the same broader primate tribe as baboons and mandrills, a distant evolutionary relationship that connects it to these larger, more ground-dwelling relatives despite the grey-cheeked mangabey's own more arboreal lifestyle.
Why do other animals sometimes follow the grey-cheeked mangabey?
This species is sometimes followed by hornbills and other animals that take advantage of fruit dropped or dislodged during its foraging activity in the canopy, a loose feeding association that benefits the following species without directly involving the mangabey itself.
Does the grey-cheeked mangabey spend time on the ground?
Yes, this species is semi-terrestrial, spending considerable time foraging both in the forest canopy and on the ground depending on food availability, a flexibility that sets it apart from more strictly arboreal monkey species.