Abstract
Visual and acoustic cues may serve as aposematic signals that warn predators of poisonous foods. Olfactory aposematism, the use of innocuous odors as warning signals for toxic foods, is another possible means of alerting an animal that a potential food item is unpalatable. Although it has been suggested that olfactory aposematism might be the principle mode of warning utilized by plants in their defense against herbivores, experimental evidence is lacking. This study demonstrates that the opossum,Didelphis virginiana, can utilize an innocuous volatile compound found naturally in a mushroom as a warning signal for a delayed illness caused by mushroom toxin. This supports the contention that characteristic odors of toxic plants may serve a warning function, protecting herbivores from being poisoned and plants from being consumed.
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References
Brower, L.P. 1969. Ecological chemistry.Sci. Am. 220(2):22–29
Brower, L.P., andBrower, J.V.Z. 1962. Experimental studies of mimicry. 6. The reaction of toads (Bufo terrestris) to honeybees (Apis mellifera) and their dronefly mimics (Eristalis vinetorum).Am. Nat. 96:297–307.
Brower, L.P., andBrower, J.V.Z. 1965. Experimental studies of mimicry. 8. Further investigations of honeybees (Apis mellifera) and their dronefly mimics (Eristalis spp).Am. Nat. 99:173–187.
Brower, L.P., Brower, J.V.Z., andWestcott, P.W. 1960. Experimental studies of mimicry. 5. The reactions of toads (Bufo terrestris) to bumblebees (Bombus americanorum) and their robberfly mimics (Mallophora bomboides), with a discussion of aggressive mimicry.Am. Nat. 94:343–355.
Camazine, S. 1983. Mushroom chemical defense: Food aversion learning induced by the hallucinogenic toxin, muscimol.J. Chem. Ecol. 9:1473–1481.
Camazine, S., Resch, J.F., Eisner, T., andMeinwald, J. 1983. Mushroom chemical defense: Pungent sesquiterpenoid dialdehyde antifeedant to opossum.J. Chem. Ecol. 9:1439–1447.
Cott, H.B. 1940. Protective Coloration in Animals. Methuen, London.
Dunning, D.C., andRoeder, K.D. 1965. Moth sounds and the insect-catching behavior of bats.Science 147:173–174.
Eisner, T., andGrant, R.P. 1981. Toxicity, odor aversion, odor aversion, and “olfactory apose-matism.”Science 213:476.
Fogel, R., andTrappe, J.M. 1978. Fungus consumption (mycophagy) by small animals.Northwest Sci. 52:1–31.
Fullard, J.H. 1977. Phenology of sound-producing arctiid moths and the activity of insectivorous bats.Nature 267:42–43.
Gamzu, E. 1977. The multifaceted nature of taste-aversion-inducing agents: Is there a single common factor?, pp. 477–509,in L.M. Barker, M.R. Best, and M. Domjan (eds.). Learning Mechanisms in Food Selection. Baylor University Press, Texas.
Garcia, J., andRusiniak, K.W. 1980. What the nose learns from the mouth, pp. 141–156,in D. Müller-Schwarze and R.M. Silverstein (eds.). Chemical Signals. Plenum Publishing, New York.
Moulton, D.G. 1973. The use of animals in olfactory research, pp. 143–223,in W.I. Gay (ed.). Methods of Animal Experimentation, Vol. IV, Environment and the Special Senses. Academic Press, New York.
Palmerino, C.C., Rusiniak, K.W., andGarcia, J. 1980. Flavor-illness aversions: The peculiar roles of odor and taste in the memory for poison.Science 208:753–755.
Pyysalo, H. 1976. Identification of volatile compounds in seven edible fresh mushrooms.Acta Chem. Scand. B 30:235–244.
Rothschild, M. 1961. Defensive odors and Mullerian mimicry among insects.Trans. R. Entomol. Soc. London 113:101–121.
Smith, S.M. 1977. Coral-snake pattern recognition and stimulus generalization by naive great kiskadees (Aves: Tyrannidae).Nature 265:535–536.
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Camazine, S. Olfactory aposematism. J Chem Ecol 11, 1289–1295 (1985). https://doi.org/10.1007/BF01024116
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DOI: https://doi.org/10.1007/BF01024116