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Sex Ratio Evolution Under Local Mate Competition in a Parasitic Wasp
John H. Werren
Vol. 37, No. 1 (Jan., 1983), pp. 116-124
Published by: Society for the Study of Evolution
Stable URL: http://www.jstor.org/stable/2408180
Page Count: 9
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The parasitic wasp, N. vitripennis, is an excellent organism for testing sex ratio theory because it encounters a range of mating structures in nature, from sibling mating to panmixia in large populations. Both laboratory and field data are presented which quantitatively support Hamilton's prediction that as the number of foundresses contributing progeny to a local mating population increases, the sex ratio among progeny should shift from a female bias toward a 50:50 sex ratio.
Evolution © 1983 Society for the Study of Evolution