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"Sex-Ratio" Trait, Sex Composition, and Relative Abundance in Drosophila pseudoobscura
Stephen H. Bryant, Andrew T. Beckenbach and Gary A. Cobbs
Vol. 36, No. 1 (Jan., 1982), pp. 27-34
Published by: Society for the Study of Evolution
Stable URL: http://www.jstor.org/stable/2407963
Page Count: 8
You can always find the topics here!Topics: Drosophila, Female animals, Phenotypic traits, Genetics, Winter, Population growth rate, Population growth, Population characteristics, Academic progress rate, Growth traits
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There are repeatable patterns from year to year in sex composition, the frequency of the "sex-ratio" (SR) trait, and the relative abundance of Drosophila pseudoobscura in southern California. The temperature pattern is also repeatable from year to year. Although sex composition cannot influence the frequency of SR, the frequency of SR can influence the sex composition and the growth rate of the population. These effects of SR may be shown by our data from a natural population.
Evolution © 1982 Society for the Study of Evolution