The notion that men are more variable than women has become embedded into scientific
thinking. For mental traits like personality, greater male variability has been partly attributed …

Males and females often exhibit different behaviours during mate acquisition, pair‐bonding
and parenting, and a convenient label to characterize these behaviours is sex role. The …

Shorebirds (sandpipers, plovers and allies) are some of the most charismatic animals that
breed on all continents and inhabit diverse habitats, and their ecology, behaviour and …

Males and females often have different roles in reproduction, although the origin of these
differences has remained controversial. Explaining the enigmatic reversed sex roles where …

Highlights•The sperm storage hypothesis fails to explain many cases of extrapair
paternity.•Rates of extrapair paternity and social polyandry are lower than reported …

When individuals breed more than once, parents are faced with the choice of whether to re-
mate with their old partner or divorce and select a new mate. Evolutionary theory predicts …

Sexual selection may act as a promotor of speciation since divergent mate choice and
competition for mates can rapidly lead to reproductive isolation. Alternatively, sexual …

Parental care can enhance offspring survival but may impose significant costs to parents.
The costs and benefits of care are key to understanding patterns of parental care, where …

In most animals, competition for mating opportunities is higher among males, whereas
females are more likely to provide parental care. In few species, though, these" …

Shorebirds run the gamut of breeding system diversity, with the plover lineage being no
exception. Inter-and intraspecific variation in mating and parental strategies has been …