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Related Experiment Videos

Seed dispersal by long-tailed macaques

P W Lucas1, R T Corlett

  • 1Department of Anatomy, University of Hong Kong, Hong Kong.

American Journal of Primatology
|May 9, 1998
PubMed
Summary
This summary is machine-generated.

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Long-tailed macaques process seeds by chewing, spitting, or swallowing them whole. Fruit type and seed size influence these behaviors, impacting seed dispersal in their habitat.

Area of Science:

  • Primate Ecology
  • Seed Dispersal Biology
  • Mammalian Feeding Behavior

Background:

  • Long-tailed macaques (Macaca fascicularis fascicularis) inhabit Bukit Timah Nature Reserve, Singapore.
  • Understanding their seed processing methods is crucial for ecological studies.

Purpose of the Study:

  • To investigate the diverse methods long-tailed macaques use to process seeds.
  • To identify factors influencing these seed processing behaviors.

Main Methods:

  • Direct feeding observations of macaques in their natural habitat.
  • Analysis of seed presence and condition in fecal samples.

Main Results:

  • Macaques employ varied seed processing techniques: destruction by teeth, spitting whole seeds after flesh removal, or cleaning flesh and dropping seeds.

Related Experiment Videos

  • Intact seeds in feces indicate some seeds are swallowed whole.
  • Seed processing methods correlate with fruit type (fleshy vs. dry) and seed size.
  • Macaque oral morphology (gape, cheek pouches, teeth) likely influences seed processing thresholds.

    • Conclusions:

    • Long-tailed macaques exhibit flexible seed processing strategies influenced by fruit and seed characteristics.
    • While effective in depleted areas, macaque seed dispersal may not show coevolution with fruits.
    • In environments lacking larger vertebrates, macaques can play a significant role in dispersing large-seeded fruits.