Females frequently mate with several males, whose sperm then compete to fertilize
available ova. Sperm competition represents a potent selective force that is expected to …

Male genitalia show patterns of divergent evolution, and sexual selection is recognised as
being responsible for this taxonomically widespread phenomenon. Much of the empirical …

Females of many species mate with multiple males, thereby inciting competition among
ejaculates from rival males for fertilization. In response to increasing sperm competition …

Recent theoretical models predict that the evolutionary diversification of the weapons and
ornaments of pre-mating sexual selection should be influenced by trade-offs with male …

The Darwin–Bateman paradigm recognizes competition among males for access to multiple
mates as the main driver of sexual selection. Increasingly, however, females are also being …

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 …

This book describes the evolutionary and ecological consequences of reproductive
competition for scarabaeine dung beetles. As well as giving us insight into the private lives …

Sexual conflict can arise when males evolve traits that improve their mating success but in
doing so harm females. By reducing female fitness, male harm can diminish offspring …

Insects display a staggering diversity of mating and social behaviours. Studying these
systems provides insights into a wide range of evolutionary and behavioural questions, such …

Why can we sometimes successfully distinguish males from females at a glance, even in a
species we have never seen before (Fig. 6.1)? One answer is that we make an often …