Cercocebus atys lunulatus
White-naped mangabey is a sub-species of the Sooty Mangabey. This group
of mangabeys is related to baboons and guenons and lives in the
tropical rainforest areas of Central- and West- Africa.
mangabey has a fine
body structure with long limbs and a long tail. The fur is grey-brown,
with the inner limbs and the underside being white. On the back there
is a long black stripe. They got their name from a white spot on top of
their head. The eyelids are coloured white as in other mangabey species
and add colour to the animal’s face when being lifted. This is used for
communication amongst individuals.
Only to be found
in the Upper Guinean Rainforest of the eastern part of Cote d’Ivoire
and western Ghana.
and secondary rainforest, the White-naped mangabey is often found
foraging on the ground.
mangabeys can live up to
30 years. Females mature at the age of 3 -4 years and give birth every
12 to 18 months to one young. Their pregnancy lasts 5 ½ months and the
young are breast-fed for about half a year.
mangabeys eat fruit, seeds,
insects and other small invertebrates but there is no precise study
from the wild to confirm this in detail.
live in groups of
10 – 25 individuals, formed by several males and females. While males
leave their natal group the females stay within and form the core of
the group. The related females form a strict hierarchy amongst
themselves to avoid conflicts.
their day foraging in the dense undergrowth of a forest. While doing so
group members keep in contact by acoustic signals and calls.
White-naped mangabeys has been reduced severely by over-hunting and
destruction of habitat throughout the last three decades. The remaining
groups are now living in separated fragments of forest areas. Exact
numbers are not known but estimated at around a few thousand. This
sub-species is therefore also rated as highly endangered by the World
Conservation Organization (IUCN).