Notes on the Ecology and Behaviour of the Angola Colobus (Colobus angolensis P. L. Sclater 1860) in N.E.Tanzania

Abstract

Angola colobus display a social structure rather similar to mantled guereza; living in small, tight-knit troops with usually a single adult male who performs the distinctive jumping-roaring display. Food consists largely of leaves; Celtis is a favoured source wherever it occurs. Unripe figs are also consumed. Observations on flight behaviour, intragroup relations, interspecies associations, and the determinants of troop composition are made.