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Divergent strategies in faeces avoidance between two cercopithecoid primates.

Cécile Sarabian1, Barthélémy Ngoubangoye2, Andrew J J MacIntosh1

  • 1Primate Research Institute, Kyoto University, 41-2 Kanrin, Inuyama 484-8506, Japan.

Royal Society Open Science
|April 10, 2020
PubMed
Summary
This summary is machine-generated.

Primates avoid parasite-infected food sources. Mandrills and macaques showed distinct reactions to visual and olfactory cues from feces, supporting infection-avoidance strategies in primates.

Keywords:
Macaca fascicularisMandrillus sphinxdisgustparasite avoidancesensory aversion

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Area of Science:

  • Primatology
  • Ethology
  • Evolutionary Biology

Background:

  • Parasites significantly influence animal behavior and evolution.
  • Faeces are known carriers of infectious agents, often eliciting avoidance behaviors.
  • Faeces avoidance mechanisms in non-human primates remain understudied.

Purpose of the Study:

  • To investigate if visual and olfactory cues from feces mediate avoidance behavior in foraging mandrills and long-tailed macaques.
  • To test the infection-avoidance hypothesis in two cercopithecoid primate species.
  • To explore primate strategies for avoiding food contamination.

Main Methods:

  • Experimental approach using visual and olfactory cues of feces.
  • Observation of foraging behavior in mandrills (Mandrillus sphinx) and long-tailed macaques (Macaca fascicularis).
  • Measurement of food consumption and manipulation rates in response to cues.

Main Results:

  • Mandrills exhibited lower food consumption rates when exposed to feces cues.
  • Long-tailed macaques showed higher food manipulation rates in response to feces cues.
  • Both responses align with the infection-avoidance hypothesis.

Conclusions:

  • Visual and olfactory cues of feces influence foraging behavior in mandrills and long-tailed macaques.
  • These findings support the role of infection avoidance in shaping primate behavior.
  • Further research is needed to understand the diversity of avoidance strategies in primates concerning food contamination.