Ranging Patterns of Critically Endangered Colobine, Presbytis chrysomelas chrysomelas

Abstract EN

Presbytis chrysomelas chrysomelas endemic only in Sarawak and Kalimantan was categorized by IUCN as a critically endangered primate that require special attention from research and conservation perspectives.

A qualitative study on ranging patterns of P.

c.

chrysomelas was conducted in the Samunsam Wildlife Sanctuary, Sarawak.

The study was conducted over a period of 13 months from December 2004 to December 2005 with 213 days of observation.

Behavioural observation covered 17 groups with special emphasis on two main groups and 1 subadult group.

Scanning and focal sampling were employed as the observation methods.

Results indicated that P.

c.

chrysomelas had vertical, straight horizontal, and cross-horizontal types of movement patterns.

P.

c.

chrysomelas was recorded to have a short movement distance (31.8–54.3 m).

Distribution, abundance types, and food resources might be the factors that shaped the patterns of movement and distance in P.

c.

chrysomelas.