Classical sexual selection theory,,, provides a well-supported conceptual framework for
understanding the evolution and signalling function of male ornaments. It predicts that males …

It has long been suggested that tropical species are generally more colourful than temperate
species, but whether latitudinal gradients in organismal colourfulness exist remains …

Recent studies show that traits long recognized as sexually selected ornaments, such as the
bright plumage colors and melodious vocal displays of songbirds, have evolved in …

Although the migration ecology of birds breeding in the Neotropics is still poorly studied
relative to that of their counterparts breeding at north-temperate latitudes, studies conducted …

Males and females can be under different evolutionary pressures if sexual and natural
selection is differentially operating in each sex. As a result, many species have evolved …

Elaborate plumages and songs in male birds provide classic evidence for Darwinian sexual
selection. However, trait elaboration in birds is not gender-restricted: female song has …

Some birds undergo seasonal colour change by moulting twice each year, typically
alternating between a cryptic, non‐breeding plumage and a conspicuous, breeding …

Evolutionary radiations provide important insights into species diversification, which is
especially true of adaptive radiations. New World wood warblers (Parulidae) are a family of …

Differences in the strength of sexual selection between males and females can lead to
sexual dimorphism. Extra‐pair paternity (EPP) can increase the variance in male …

Dynamic sexual dichromatism is a temporary colour change between the sexes and has
evolved independently in a wide range of anurans, many of which are explosive breeders …