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Related Experiment Videos

Foraging and ranging patterns in white-bellied spider monkeys

A Nunes1

  • 1Department de Zoologia, Museu Emilio Goeldi, Belém, Pará, Brazil.

Folia Primatologica; International Journal of Primatology
|January 1, 1995
PubMed
Summary

Black-handed spider monkeys (Ateles belzebuth belzebuth) adjust their ranging and foraging behavior based on seasonal fruit availability. They use smaller areas with fewer trees in the dry season and larger areas with more trees in the wet season.

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Area of Science:

  • Behavioral Ecology
  • Primate Behavior
  • Resource Availability

Background:

  • Understanding primate foraging strategies is crucial for conservation efforts.
  • Seasonal variation in food resources significantly impacts animal behavior.
  • The black-handed spider monkey (Ateles belzebuth belzebuth) is an important seed disperser in Neotropical forests.

Purpose of the Study:

  • To analyze the ranging and foraging patterns of Ateles belzebuth belzebuth.
  • To correlate these patterns with temporal and spatial variations in plant resources.
  • To evaluate observed behaviors in relation to foraging strategies.

Main Methods:

  • Field study observing a group of Ateles belzebuth belzebuth.
  • Analysis of ranging patterns, including area use and daily path length.

Related Experiment Videos

  • Correlation of behavioral data with seasonal fruit abundance and distribution.

    • Main Results:

    • Two distinct foraging behaviors were observed, linked to resource availability.
    • During the dry season, monkeys used smaller ranges and revisited fewer trees.
    • During the wet season, monkeys expanded their range and visited more fruiting trees daily.

    Conclusions:

    • Spider monkey ranging and foraging are directly influenced by seasonal resource fluctuations.
    • Behavioral plasticity allows adaptation to varying food availability.
    • These findings inform our understanding of primate ecological roles and conservation needs.