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BIOSYSTEMATICS OF THE GENUS EUXOA (LEPIDOPTERA: NOCTUIDAE): X. INCIDENCE AND LEVEL OF MULTIPLE MATING IN NATURAL AND LABORATORY POPULATIONS

Published online by Cambridge University Press:  31 May 2012

J. R. Byers
J. R. Byers
Affiliation:
Biosystematics Research Institute, Agriculture Canada, Ottawa K1A 0C6
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Abstract

In most species of Euxoa a high proportion of the females mate more than once. The mean number of matings per mated female in natural populations of 13 species ranged from 1.65 to 10.86. Mating frequency data for laboratory populations of three of these species indicate that laboratory rearing and confinement does not significantly alter the incidence and level of multiple mating. The propensity for multiple mating is species characteristic although the observed level in samples from the field can vary significantly depending on the age structure of the populations sampled and probably also on other parameters of populations or environmental factors. Since species differences in the tendency for multiple mating are probably manifestations of different reproductive strategies some of the possible advantages of this behavior are discussed.

Type
Articles
Information
The Canadian Entomologist , Volume 110 , Issue 2 , 01 February 1978 , pp. 193 - 200
Copyright
Copyright © Entomological Society of Canada 1978

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