Explaining the presence of conspicuous female ornaments that take the form of male-typical traits has been a longstanding challenge in evolutionary biology. Such female ornaments have been proposed to evolve via both adaptive and nonadaptive evolutionary processes. Determining the genetic underpinnings of female ornaments is important for elucidating the mechanisms by which such female traits a...

Long-tailed dance flies, Rhamphomyia longicauda (Diptera: Empididae), show a striking reversal in the typical pattern of animal sexual dimorphism. Whereas male R. longicauda are mosquito-like in appearance, females sport rows of scales on their legs and have elaborate eversible pleural (abdominal) sacs that are inflated just prior to entry into a female competitive mating swarm. Both sets of or...

This paper presents an automatic system for the detection of singleand multi-note ornaments in Irish traditional flute playing. This is a challenging problem because ornaments are notes of a very short duration. The presented ornament detection system is based on first detecting onsets and then exploiting the knowledge of musical ornamentation. We employed onset detection methods based on signa...

The expression in females of ornaments thought to be the target of sexual selection in males is a long-standing puzzle. Two main hypotheses are proposed to account for the existence of conspicuous ornaments in both sexes (mutual ornamentation): genetic correlation between the sexes and sexual selection on females as well as males. We examined the pattern of ornament gains and losses in 240 spec...

The static allometry of secondary sexual characters is currently subject to debate. While some studies suggest an almost universal positive allometry for such traits, but isometry or negative allometry for nonornamental traits, other studies maintain that any kind of allometric pattern is possible. Therefore, we investigated the allometry of sexually size dimorphic feather ornaments in 67 speci...

Bali is known worldwide for most of its people's activities using handicrafts; one the commonly found arts and crafts Balinese ornaments. Ornaments are very well developed, not only to decorate temples, but also traditional houses, tourism commodity needs. Some ornaments symbolically have particular meanings symbolize something based on culture, customs, beliefs, religion. Understanding form fu...

Recent progress in techniques of quantifying between-individual differences of color-based ornaments has revealed undiscovered possibilities for research in sexual selection. We present how the color spectra data can be comprehensively used for studying the importance of sexual ornaments in the black grouse and how these ornaments are related to a male condition. For this, we used both correlat...