Ranging Behaviour of a Group of Black Colobus (Colobus satanas ) in the Douala-Edea Reserve, Cameroon

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Abstract
Data are presented from an 11 mo. study of the ranging movements of a group of C. satanas in a rain forest on the coast of Cameroon. Correlations between seasonal variation in ranging behavior and seasonal variation in food availability, diet composition and diversity and weather conditions are discussed. The data support the hypothesis that the scarcity of nutrient-rich, highly digestible leaves in this site has led to a feeding strategy based on seeds, which are characterized by high nutritive quality and occurrence in large clumps, allowing monotonous feeding and low expenditure of energy in ranging movements.