Ornaments, weapons and aggressive behaviours may evolve in female animals by mate
choice and intrasexual competition for mating opportunities—the standard forms of sexual …

Literature Cited to accompany Animal Communication, 2e Page 1 Principles of Animal
Communication, Second Edition Jack W. Bradbury and Sandra L. Vehrencamp Chapter 14 …

Colourful traits in females are suggested to have evolved and be maintained by sexual
selection. Although several studies have evaluated this idea, support is still equivocal …

Colourful ornaments often communicate salient information to mates, and theory predicts
covariance between signal expression and individual quality. This has borne out among …

Carotenoid-based coloration in adult birds has been often regarded as an honest signal of
individual quality. However, few studies have demonstrated a link between carotenoid …

Eumelanin and pheomelanin are the most common vertebrate pigments. They generate
different colours and are synthesized under different physiological conditions. While …

The differential allocation hypothesis posits that individuals should invest in the current
reproductive attempt according to the attractiveness of their mate, but studies of allocation by …

The sexual ornamentation of animals typically consists of multiple distinct traits. The
classical research approach focuses on differences among these traits, but this approach …

Animals often announce their unprofitability to predators through conspicuous coloured
signals. Here we tested whether the apparently conspicuous colour designs of the four …

Assortative mating is a tendency to mate with phenotypically similar individuals as a
consequence of either selection acting on mate preferences or individual constraints …