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Science 2 February 1973:
Vol. 179. no. 4072, pp. 487 - 488
DOI: 10.1126/science.179.4072.487
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Articles

Pheromone Concentration as a Mechanism for Reproductive Isolation between Two Lepidopterous Species

R. S. Kaae 1, H. H. Shorey 1, and Lyle K. Gaston 1

1 Division of Toxicology and Physiology, Department of Entomology, University of California, Riverside 92502

Pheromone-releasing females of the closely related noctuid moths Trichoplusia ni and Autographa californica attract mainly males of their own species. Sex-pheromone-concentration specificity appears to be an important reproductive isolating mechanism for these two species. Apparently, both species utilize the same pheromone, cis-7-dodecenyl acetate, for mating communication, but T. ni utilizes a higher level than does A. californica. Traps releasing amounts of cis-7-dodecenyl acetate that are highly attractive for males of one of the species catch very few males of the other species.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Sex Pheromones and Reproductive Isolation of the Lesser Peachtree Borer and the Peachtree Borer.
J. H. Tumlinson, C. E. Yonce, R. E. Doolittle, R. R. Heath, C. R. Gentry, and E. R. Mitchell (1974)
Science 185, 614-616
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