Journal ArticleDOI
Sex ratio and differential mortality between the sexes
TLDR
A continuous model which keeps track of the numbers of each sex shows that an allele for equal division of effort between the sexes is favored over any allele causing a slight deviation from equality, no matter what the difference in mortalitybetween the sexes.Abstract:
Differential mortality between the sexes after the period of parental care apparently does not alter the ratio of male to female births. A continuous model which keeps track of the numbers of each sex shows that an allele for equal division of effort between the sexes is favored over any allele causing a slight deviation from equality, no matter what the difference in mortality between the sexes.read more
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Sexual selection and the descent of man, 1871-1971
TL;DR: In the first full discussion of sexual selection since 1871, leading biologists brought modern genetic theory and behavior observation to bear on the subject as mentioned in this paper, and the result is a remarkably original and well-rounded view of the whole concept that will be invaluable especially to students of evolution and human sexual behavior.
Journal ArticleDOI
Natural selection of parental ability to vary the sex ratio of offspring.
Robert Trivers,Dan E. Willard +1 more
TL;DR: Theory and data suggest that a male in good condition at the end of the period of parental investment is expected to outreproduce a sister in similar condition, while she is expectedto outre produce him if both are in poor condition, and natural selection should favor parental ability to adjust the sex ratio of offspring produced according to parental able to invest.
Book
Evolution in age-structured populations
TL;DR: This chapter discusses the development of models of age-structured populations and the properties of equilibrium populations and their role in the evolution of life-histories.
Book
Foundations of social evolution
TL;DR: Demography and Kin Selection1148Reproductive Value1349Sex Allocation: Marginal Value17210Sex Allocating: Kin Selection19111Sex Allocations: Reproductive Value21412 as mentioned in this paper.
Journal ArticleDOI
Sex Ratio Variation in Mammals
Tim H. Clutton-Brock,G R Iason +1 more
TL;DR: Valid evidence that sex ratio trends are adaptive must be based on the overall distribution of trends or on cases in which the sex ratio can be shown to vary with the relative fitness of producing sons and daughters.
References
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Journal ArticleDOI
The Genetical Theory of Natural Selection
TL;DR: Although it is true that most text-books of genetics open with a chapter on biometry, closer inspection will reveal that this has little connexion with the body of the work, and that more often than not it is merely belated homage to a once fashionable study.
Journal ArticleDOI
Physiological and Evolutionary Theories of Dominance
TL;DR: It is found that one member of each of his seven pairs of alternative characters of the pea reappeared in the first cross-bred generation to the complete or nearly complete exclusion of the other.