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Related Experiment Videos

Capturing wild long-tailed macaques (Macaca fascicularis).

J R de Ruiter1

  • 1Project Group Ethology and Socio-Ecology, Utrecht University, The Netherlands.

Folia Primatologica; International Journal of Primatology
|January 1, 1992
PubMed
Summary
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Researchers captured long-tailed macaques in Sumatra using various methods, finding individual cage traps most effective with minimal group disturbance. Trapping techniques did not significantly alter the animals' natural social behaviour.

Area of Science:

  • Primatology
  • Ethology
  • Conservation Biology

Background:

  • Long-tailed macaques (Macaca fascicularis) are widespread throughout Southeast Asia.
  • Understanding their social behavior and genetic diversity is crucial for conservation efforts.
  • Previous research has explored macaque ecology, but efficient and minimally invasive capture methods require further study.

Purpose of the Study:

  • To document and compare the efficacy of different capture methods for long-tailed macaques.
  • To assess the impact of trapping on the social behavior of Macaca fascicularis.
  • To gather data on social behavior and genetic relationships of Sumatran long-tailed macaques.

Main Methods:

  • Capture of long-tailed macaques using individual cage traps, group traps, blowpipes, and air-pressure rifles in northern Sumatra.

Related Experiment Videos

  • Observation of social behavior before and after trapping to assess disturbance.
  • Placement of elevated traps centrally and peripherally to optimize capture of specific individuals.
  • Main Results:

    • Individual cage traps baited with food were the most successful, achieving high capture rates with minimal disruption to macaque social groups.
    • Elevated traps placed in central and peripheral locations improved capture success for young juveniles and peripheral individuals.
    • No discernible long-term negative effects on the natural behavior of the long-tailed macaques were observed post-trapping.

    Conclusions:

    • Individual cage trapping is an effective and minimally disruptive method for capturing long-tailed macaques, particularly when baited.
    • Strategic trap placement can enhance the capture of specific age and social-status individuals.
    • Current trapping methodologies appear suitable for behavioral and genetic studies without causing lasting behavioral alterations in Macaca fascicularis populations.