Since Darwin's conception of sexual selection theory, scientists have struggled to identify the
evolutionary forces underlying the pervasive differences between male and female …

For sexual selection to act on a given sex, there must exist variation in the reproductive
success of that sex as a result of differential access to mates or fertilisations. The …

Phylogenetics is undergoing a revolution as large-scale molecular datasets reveal
unexpected but repeatable rearrangements of clades that were previously thought to be …

Sexual selection is a cornerstone of evolutionary theory, but measuring it has proved
surprisingly difficult and controversial. Various proxy measures—eg, the Bateman gradient …

Routine assessments of overall sexual selection, including comparisons of its direction and
intensity between sexes or species, rely on summary metrics that capture the essence of …

Sexual selection is a potent evolutionary force that has been shown to vary in strength and
direction depending on demographic factors such as density and sex ratio. However, the …

Natural selection operates via fitness components like mating success, fecundity, and
longevity, which can be understood as intermediaries in the causal process linking traits to …

In species with complex life cycles, life history theory predicts that fitness is affected by
conditions encountered in previous life history stages. Here, we use a 4‐year pedigree to …

Spatial and temporal variation in environmental factors and the social setting can help to
maintain genetic variation in sexually selected traits if it affects the strength of directional …

Assessment of sexual selection in organisms with cryptic life histories is challenging,
although accurate parentage assignments using genotypic markers, combined with …