Prediction of individual differences in non-iridescent structural plumage colour from nanostructural periodicity and regularity DOI Creative Commons
Gergely Hegyi, Miklós Laczi, András Wacha

et al.

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(6)

Published: June 1, 2024

Non-iridescent structural plumage reflectance is a sexually selected indicator of individual quality in several bird species. However, the basis differences remains unclear. In particular, dominant periodicity quasi-ordered feather barb nanostructure key importance colour generation, but no study has successfully traced back parameters, and particularly hue, to nanostructural periodicity, although this would be deciphering information content variation. We used matrix small-angle X-ray scattering measurements intact, stacked samples from blue tit crown estimate sex-dependence variation its effects on light reflectance. Measures predicted brightness, ultraviolet chroma also with statistically similar two sexes. we observed lack overall effect inhomogeneity chromaticity, sex-dependent accuracy hue prediction strong position estimation error. suggest that attributes are modified by other structures sex-specific manner, within-individual parameters exists within or among feathers confounds interpretation structure–reflectance relationships at area level.

Language: Английский

Experimental data suggest between population reversal in the condition dependence of two sexually selected traits DOI Creative Commons
Gergely Hegyi, Miklós Laczi, Gyula M. Szabó

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 4, 2025

Abstract When viewing mate choice as a process of adaptive evolution, the condition-dependence sexual ornaments represents central pillar. Experimental tests are few and refer to one population per species. The first brood size manipulation experiment aimed test ornament had been reported from Swedish collared flycatchers. Here we report similar conducted in Hungarian population, examining change white plumage patch sizes male parents by next year offspring adulthood. results consistently indicate that experimentally modified reproductive effort affects wing, but not forehead size. To contrary, previous indicated significant effects on forehead, wing sizes. Both patches sexually selected both populations, so diverging offer experimental suggestion trait crossover information content two ornaments. We conclude explaining why some condition-dependent is still far ahead, further, preferably comparisons would be helpful.

Language: Английский

Citations

0
Prediction of individual differences in non-iridescent structural plumage colour from nanostructural periodicity and regularity DOI Creative Commons
Gergely Hegyi, Miklós Laczi, András Wacha

et al.

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(6)

Published: June 1, 2024

Non-iridescent structural plumage reflectance is a sexually selected indicator of individual quality in several bird species. However, the basis differences remains unclear. In particular, dominant periodicity quasi-ordered feather barb nanostructure key importance colour generation, but no study has successfully traced back parameters, and particularly hue, to nanostructural periodicity, although this would be deciphering information content variation. We used matrix small-angle X-ray scattering measurements intact, stacked samples from blue tit crown estimate sex-dependence variation its effects on light reflectance. Measures predicted brightness, ultraviolet chroma also with statistically similar two sexes. we observed lack overall effect inhomogeneity chromaticity, sex-dependent accuracy hue prediction strong position estimation error. suggest that attributes are modified by other structures sex-specific manner, within-individual parameters exists within or among feathers confounds interpretation structure–reflectance relationships at area level.

Language: Английский

Citations

2