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Seed dispersal

Directed deterrence by capsaicin in chillies


The primary function of ripe, fleshy fruit is to facilitate seed dispersal by attracting consumers1,2, yet many fruits contain unpleasant-tasting chemicals that deter consumption by vertebrates3. Here we investigate this paradox in the chilli (Capsicum) and find that capsaicin, the chemical responsible for the fruit's peppery heat4, selectively discourages vertebrate predators without deterring more effective seed dispersers.

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Figure 1: The effects of capsaicin on consumers and of consumers on chillies.


  1. Snow, D. W. Ibis 113, 194–202 (1971).

    Article  Google Scholar 

  2. McKey, D. in Coevolution of Animals and Plants (eds Gilbert, L. E. & Raven, P. H) 158–191 (Univ. Texas Press, Austin, 1975).

    Google Scholar 

  3. Herrera, C. M. Am. Nat. 120, 218–241 (1982).

    Article  Google Scholar 

  4. Cordell, G. A. & Araujo, O. E. Ann. Pharmacother. 27, 330–336 (1993).

    Article  CAS  Google Scholar 

  5. Govindarajan, V. S. & Sathyanarayana, N. M. Crit. Rev. Food Sci. Nutr. 29, 435–474 (1991).

    Article  CAS  Google Scholar 

  6. Caterina, M. J. et al. Nature 389, 816–824 (1997).

    Article  ADS  CAS  Google Scholar 

  7. Mason, J. R., Bean, N. J., Shah, P. S. & Clark, L. J. Chem. Ecol. 17, 2539–2551 (1991).

    Article  CAS  Google Scholar 

  8. Norman, D. M., Mason, J. R. & Clark, L. Wils. Bull. 104, 549–551 (1992).

    Google Scholar 

  9. Jansen, D. H. Evolution 23, 1–27 (1969).

    Article  Google Scholar 

  10. Cipollini, M. L. & Levey, D. J. Am. Nat. 150, 346–372 (1997).

    Article  CAS  Google Scholar 

  11. Tewksbury, J. J. et al. Conserv. Biol. 13, 98–107 (1999).

    Article  Google Scholar 

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Correspondence to Joshua J. Tewksbury.

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Tewksbury, J., Nabhan, G. Directed deterrence by capsaicin in chillies. Nature 412, 403–404 (2001).

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