, Volume 20, Issue 4, pp 475–490

On the ecology and behavior ofCebus albifrons in eastern Colombia: I. Ecology

  • Thomas R. Defler

DOI: 10.1007/BF02373430

Cite this article as:
Defler, T.R. Primates (1979) 20: 475. doi:10.1007/BF02373430


A-503 contact-hr study of a 35-member group ofCebus albifrons was conducted in eastern Colombia in 1977 and 1978. The group had a female: male socionomic sex ratio of 2.5:1 and used a home range of 110–120 ha which overlapped the home range of another group ofC. albifrons about 20–30 ha. The animals spent about 80% of their foraging time eating plant material and about 20% of their foraging time eating animal materials. A birth peak at the end of the dry season extending into the wet season was indicated by data available. Attempted predation was recorded by the mustelidEira barbara and the black-and-white hawk-eagleSpizastur melanoleucus. Some association was observed with the red howler monkeyAlouatta seniculus. The group at times spent more than half the day foraging and traveling on the ground, exhibiting a level of terrestriality not reported for other New World primates.

Copyright information

© Japan Monkey Centre 1979

Authors and Affiliations

  • Thomas R. Defler
    • 1
    • 2
  1. 1.PNCP/INDERENABogotáColombia
  2. 2.The American Peace CorpsUSA