Conflict between parents over care of young arises when the young benefit from the effort of
both parents, but each parent suffers a reduction in future reproductive success as a …

Adult sex ratio (ASR) exhibits immense variation in nature, although neither the causes nor
the implications of this variation are fully understood. According to theory, the ASR is …

We review the conservation issues facing migratory shorebird populations that breed in
temperate regions and use wetlands in the non‐breeding season. Shorebirds are excellent …

Why do males and females frequently differ so markedly in body size and morphology? Sex,
Size, and Gender Roles is the first book to investigate the genetic, developmental, and …

Whole-genome sequencing projects are increasingly populating the tree of life and
characterizing biodiversity 1 , 2 , 3 – 4 . Sparse taxon sampling has previously been proposed to …

Is the cost of reproduction different between males and females? On the one hand, males
typically compete intensely for mates, thus sexual selection theory predicts higher cost of …

In 1950, Rensch first described that in groups of related species, sexual size dimorphism is
more pronounced in larger species. This widespread and fundamental allometric relationship …

Biparental care of offspring is both a form of cooperation and a source of conflict. Parents
face a trade‐off between current and future reproduction: caring less for the current brood …

Abstract. Charadrii (shorebirds, gulls, and alcids) have an unusual diversity in their sexual
size dimorphism, ranging from monomorphism to either male‐biased or female‐biased …

Sexual size dimorphism shows a remarkably widespread relationship to body size in the
animal kingdom: within lineages, it decreases with size when females are the larger sex, but it …