Journal of Chemical Ecology

, Volume 26, Issue 12, pp 2781–2790

Seasonal Anointment with Millipedes in a Wild Primate: A Chemical Defense Against Insects?

  • Ximena Valderrama
  • John G. Robinson
  • Athula B. Attygalle
  • Thomas Eisner
Article

Abstract

Members of a wild group of wedge-capped capuchin monkeys (Cebus olivaceus) intentionally anoint themselves with millipedes (Orthoporus dorsovittatus). Chemical analysis revealed these millipedes secrete two benzoquinones, compounds known to be potently repellent to insects. We argue that the secretion that rubs off on the monkeys in the course of anointment provides protection against insects, particularly mosquitoes (and the bot flies they transmit) during the rainy season. Millipede secretion is so avidly sought by the monkeys that up to four of them will share a single millipede. The anointment must also entail risks, since benzoquinones are toxic and carcinogenic. We suggest that for capuchins the immediate benefits of anointment outweigh the long-range costs.

Capuchin monkey millipede benzoquinone anointment chemical defense insect deterrent carcinogen 

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Copyright information

© Plenum Publishing Corporation 2000

Authors and Affiliations

  • Ximena Valderrama
    • 1
  • John G. Robinson
    • 2
  • Athula B. Attygalle
    • 3
  • Thomas Eisner
    • 4
  1. 1.Department of AnthropologyColumbia UniversityNew York
  2. 2.Wildlife Conservation SocietyBronx
  3. 3.Department of ChemistryCornell UniversityIthaca
  4. 4.Department of Neurobiology & BehaviorCornell UniversityIthaca

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