Cryptic female choice (CFC) represents postmating intersexual selection arising from female-
driven mechanisms at or after mating that bias sperm use and impact male paternity share …

Sperm morphological variation has attracted considerable interest and generated a wealth
of predominantly descriptive studies over the past three centuries. Yet, apart from …

Broadcast spawning invertebrates offer highly tractable models for evaluating sperm
competition, gamete-level mate choice and sexual conflict. By displaying the ancestral …

Interactions among eggs and sperm are often assumed to generate intraspecific variation in
reproductive fitness, but the specific gamete-level mechanisms underlying competitive …

Gametes of marine broadcast spawners are highly susceptible to the threats of ocean
warming and acidification. Here, we explore the main and interacting effects of temperature …

The widespread prevalence of sperm competition means that ejaculates face intense sexual
selection. However, prior investigations of sexual selection on gametes have been …

Several factors are involved in determining the outcome of sperm competition. In addition to
sperm number, sperm quality and male phenotype, insemination order is often associated …

Female sperm storage (FSS) is taxonomically widespread and often associated with intense
sperm competition, yet its consequences on postcopulatory sexual selection (PCSS) are …

In vitro sperm–oviduct binding assays enable assessment of the capacity of spermatozoa to
form a 'reservoir'in the oviduct. Competitive approaches, such as experimental set-ups that …

Ocean acidification (OA) poses a major threat to marine organisms, particularly during
reproduction when externally shed gametes are vulnerable to changes in seawater pH …