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 …

The consequences of polyandry for female fitness are controversial. Sexual conflict studies
and a meta‐analysis of mating rates in insects suggest that there is a longevity cost when …

Maternal effects are now universally recognised as a form of nongenetic parental influence
on offspring but, until recently, paternal effects were regarded as an anomaly. Although it is …

Female promiscuity can generate postcopulatory competition among males, but it also
provides the opportunity for exploitation of rival male ejaculates. For example, in many insect …

ABSTRACT A central question in ecology and evolution is to understand why sexual
selection varies so much in strength across taxa; it has long been known that ecological …

It is widely recognized that maternal phenotype can have important effects on offspring, but
paternal phenotype is generally assumed to have no influence in animals lacking paternal …

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 …

Despite serving the primary objective of ensuring that at least one sperm cell reaches and
fertilises an ovum, the male ejaculate (ie spermatozoa and seminal fluid) is a …

Environmental conditions experienced by parents are increasingly recognized to affect
offspring performance. We set out to investigate the effect of parental larval diet on offspring …

The presence of doubly uniparental inheritance (DUI) in bivalves represents a unique mode
of mitochondrial transmission, whereby paternal (male-transmitted M-type) and maternal …