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 …

It is well known that sexual selection can target reproductive traits during successive pre‐
and post‐mating episodes of selection. A key focus of recent studies has been to understand …

Dietary restriction during development can affect adult body size and condition. In many
species, larger (high-condition) males gain higher mating success through male-male …

There is increasing evidence of the far-reaching effects of gut bacteria on physiological and
behavioural traits, yet the fitness-related consequences of changes in the gut bacteria …

Sexual selection is considered the major driver for the evolution of sex differences. However,
the eco-evolutionary dynamics of sexual selection and their role for a population's adaptive …

It is increasingly clear that social environments have profound impacts on the life histories of
'non-social'animals. However, it is not yet well known how species with varying degrees of …

A challenge in evolutionary biology is to understand the operation of sexual selection on
males in polyandrous groups, where sexual selection occurs before and after mating. Here …

Our improving knowledge of the animal tree of life consistently demonstrates that some taxa
diversify more rapidly than others, but what contributes to this variation remains poorly …

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 …

1. The significance of host–microbe interactions is increasingly appreciated across
biological disciplines, yet to what extent these interactions influence developmental …