Evolutionary dynamics of the Trivers-Willard effect: A nonparametric approach.

ABSTRACT: The Trivers-Willard hypothesis (TWH) states that parents in good condition tend to bias their offspring sex ratio toward the sex with a higher variation in reproductive value, whereas parents in bad condition favor the opposite sex. Although the TWH has been generalized to predict various Trivers-Willard effects (TWE) depending on the life cycle of a species, existing work does not sufficiently acknowledge that sex-specific reproductive values depend on the relative abundances of males and females in the population. If parents adjust their offspring sex ratio according to the TWE, offspring reproductive values will also change. This should affect the long-term evolutionary dynamics and might lead to considerable deviations from the original predictions. In this paper, I model the full evol

SUBMITTER: Borgstede M 

PROVIDER: S-EPMC8462157 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature