Group Size of a Permanent Large Group of Agile Mangabeys (Cercocebus agilis) at Bai Hokou, Central African Republic.

White-eyelid mangabeys (genus Cercocebus) live in groups of highly variable size. Because of their semi-terrestrial behaviour and preference for dense forest habitats, re-liable data on group size are scarce. During a 5-month study, we collected 17 group counts on a habituated group of agile mangabeys (C. agilis) at Bai Hokou in the Central African Republic. We found a stable group size of approximately 135 individuals. This permanent large grouping pattern is known to occur among several populations of white-eyelid mangabeys and is congruent with extreme group sizes reported in mandrills at Lopé in Gabon.

Publication year:2013

Keywords:cercocebus agilis,group size,grouping pattern,permanent large,semi-terrestrial primates,white-eyelid mangabeys