Locomotion and habitat use of Stampflii's putty-nosed monkey (Cercopithecus nictitans stampflii) in the Taï National Park, Ivory Coast.

Stampflii's putty-nosed monkeys Cercopithecus nictitans stampflii are large, rare, poorly known guenons with a discontinuous distribution in West Africa. Putty-nosed monkeys occur at low densities in Ivory Coast's Tai National Park where they are believed to have migrated from less forested regions north of the park (Eckardt and Zuberbühler: Behav Ecol 15 (2004) 400-411). In this article, we compare the positional behavior of Putty-nosed monkeys to that of three other guenon species in the Tai Forest and provide an additional test of the relationship among locomotion, body size, maintenance activity, and habitat use in generalized arboreal quadrupeds. Our results indicate that putty-nosed monkeys confine the great majority of their locomotion to the main canopy where most movement occurs on boughs and branches. Comparison of overall locomotor frequencies across the four Tai guenon species reveals a general pattern; quadrupedalism accounts for at least 70% of the total profile, climbing ranges between 15 and 20%, and leaping accounts for 5-10% of total movement. The overall locomotor consistency among the taxa, especially between putty-nosed and Diana monkeys, is significant considering marked interspecific differences in support preference and strata use.