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ON CONIFEROPHAGOUS SPECIES OF CHORISTONEURA (LEPIDOPTERA: TORTRICIDAE) IN NORTH AMERICA: IV. SEXUAL ISOLATION BETWEEN THREE SPECIES

Published online by Cambridge University Press:  31 May 2012

I. M. Campbell
I. M. Campbell
Affiliation:
Department of Zoology and Entomology, Iowa State University of Science and Technology, Ames, Iowa, U.S.A.
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Abstract

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Tests of sexual isolation indicate that, in the absence of temporal and spatial isolation, the strict mating behavior of the females and the high sexual aggressiveness of the males of Choristoneura fumiferana (Clem.) would obstruct any inward flow of genes from either C. occidentalis Free, or C. biennis Free. Under these same conditions, however, the two latter species may receive genes from C. fumiferana, since, in tests, their females mated indiscriminately and their males were less aggressive than those of C. fumiferana.

Type
Articles
Information
The Canadian Entomologist , Volume 99 , Issue 5 , May 1967 , pp. 482 - 486
Copyright
Copyright © Entomological Society of Canada 1967

References

Dobzhansky, T. 1951. Experiments on sexual isolation in Drosophila. X. Reproductive isolation between Drosophila pseudoobscura and Drosophila persimilis under natural and under laboratory conditions. Proc. nat. Acad. Sci., Wash. 37: 792–796.Google Scholar
Smith, S. G. 1953. Reproductive isolation and the integrity of two sympatric species of Choristoneura (Lepidoptera: Tortricidae). Can. Ent. 85: 141–151.Google Scholar
Smith, S. G. 1954. A partial breakdown of temporal and ecological isolation between Choristoneura species (Lepidoptera: Tortricidae). Evolution 8: 206–224.Google Scholar