Sex Ratio Adaptations to Local Mate Competition in a Parasitic Wasp
- 6 June 1980
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 208 (4448), 1157-1159
- https://doi.org/10.1126/science.208.4448.1157
Abstract
Females of the parasitic wasp Nasonia vitripennis adjust the sex ratio of their broods according to whether they are a first or second wasp to parasitize a host. The first wasp produces a strong daughter bias. The second wasp adjusts the prorportion of sons to the relative level of local mate competition, as predicted by a natural selection model. The results provide a quantitative test of sex ratio theory.Keywords
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