International Journal of Primatology

, Volume 23, Issue 6, pp 1187–1204

Effects of Seed Dispersal by Three Ateline Monkey Species on Seed Germination at Tinigua National Park, Colombia


  • Pablo R. Stevenson
    • Department of AnthropologyState University of New York at Stony Brook
  • Maria Clara Castellanos
    • Department of Ecology and EvolutionState University of New York at Stony Brook
  • Juan Carlos Pizarro
    • Departamento de Ciencias BiológicasUniversidad de Los Andes
  • Mariaximena Garavito
    • Departamento de Ciencias BiológicasUniversidad de Los Andes

DOI: 10.1023/A:1021118618936

Cite this article as:
Stevenson, P.R., Castellanos, M.C., Pizarro, J.C. et al. International Journal of Primatology (2002) 23: 1187. doi:10.1023/A:1021118618936


We examined the effect of seed ingestion by three ateline primates: woolly monkeys, Lagothrix lagothricha; spider monkeys, Ateles belzebuth; and, red howler, Alouatta seniculus on germination rates and latency periods of seeds of several plant species in Tinigua National Park, Colombia. We collected dispersed seeds from feces and control seeds from the parental trees and washed them for germination trials. For the majority of plants, dispersed seeds germinated as well or better than control seeds did. Although spider monkeys depend more heavily on fruits than the other monkey species do, they were not more efficient than howlers or woolly monkeys at improving germination rates. A considerable proportion of the seeds dispersed by howlers and woolly monkeys showed reduced latency periods to germination, but spider monkeys showed less effect on reducing germination time. This result may be related to longer gut retention times, but such a trend has not been observed in other primate species. We conclude that, like many other primates, ateline monkeys are effective seed dispersers in terms of their effects on the seeds they swallow because they rarely decrease their germination rates. We discuss problems that make interspecific comparisons difficult, such as inappropriate control seeds and differences associated with germination substrates, and we stress the importance of studying other components of seed dispersal effectiveness.

germination rateLagothrix lagothrichaAteles belzebuthAlouatta seniculuslatency periodseed dispersal

Copyright information

© Plenum Publishing Corporation 2002