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Article
Emily B. Graham, Auteur ; Samuel P. Caro, Auteur ; Keith W. Sockman, AuteurThe sex ratios of offspring are targets of natural selection that can affect parental energy expenditure and fitness, adult sex ratios, and population dynamics. Parents may manipulate offspring sex ratios based on sex differences in their offspr[...]
Article
Michael Beaulieu, Auteur ; Keith W. Sockman, AuteurIn short-lived species, parents are expected to favour their offspring and may therefore have to sacrifice the best part of their diet to feed their young (conflict hypothesis'). In addition, they need to maximize energy delivered per unit of ti[...]
Article
Keith W. Sockman, AuteurFemales may choose between prospective mates based on signals that reflect male quality. In songbirds, variation in male song can be such a signal. Females can adjust their choosiness according to the prevalence of preferred song, presumably bec[...]
