INTER-GROUP ENCOUNTERS AND MALE INCURSIONS IN COLOBUS VELLEROSUS IN CENTRAL GHANA by PASCALE SICOTTE 1) and ANDREW J. MACINTOSH 2) (Department of Anthropology, University of Calgary, 2500 University Drive N.W., Calgary, AB, T2N 1N4, Canada) (Acc. 1-III-2004) Summary Inter-group encounters can 1 — reflect between-group contest competition for access to lim- iting, defensible resources, 2 — allow individuals to gather information on the surrounding groups to assess mating or dispersal opportunities or to assess resistance to a possible trans- fer or takeover, 3 — allow individuals to convey information to the other group about one’s quality/status. We present data on inter-group encounters and male incursions (where one or several males encounter a reproductive unit) in Colobus vellerosus at the Boabeng Fiema Monkey Sanctuary in Ghana to assess whether they are compatible with these three functions, and in the case of the limiting resource defense hypothesis, to assess the resource competed for. Our study group was observed for 343 hours over 61 days between June and November 2001, and interacted with three neighboring groups in 47 encounters. Inter-group encoun- ters were more frequent than male incursions (34 vs 13) and lasted longer (median: 45 vs 9 minutes). Most encounters
Behaviour – Brill
Published: Jan 1, 2004
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