While sexual selection is often the evolutionary force behind sexual dichromatism in birds,
natural selection acting on one or both sexes can also drive sex differences in colouration …

Why do some bird species show dramatic sexual dichromatism in their plumage? Sexual
selection is the most common answer to this question. However, other competing …

More than a century ago, Darwin and Wallace started a still ongoing debate over which are
the predominant forces driving sexual dichromatism (ie differences in body coloration …

Several recent studies have found instances of cryptic sexual dichromatism within avian
taxa. Although this dichromatism has been found in plumage produced through a variety of …

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 …

The study of sexual dichromatism has generally focused on sexual selection for
conspicuous males, ignoring the potential role played by selection in females. To address …

Following Charles Darwin, research on sexual dichromatism has long focused on sexual
selection driving ornamentation in males. However, Alfred Russel Wallace proposed …

In birds, sexual selection on plumage often leads to sexual dichromatism and male
ornamentation. However, even in drab species with no obvious sexual dichromatism, both …

Sex differences in plumage color are common in bird species. Some bird species are
regarded as sexually monochromatic in human visual systems, and in recent years, some …

Predation is an important driver of the evolution of animal colour and behaviour. More
colourful animals are theorised to be under higher risk of predation due to being more …