Structural color in the Swallow Tanager ( Tersina viridis ): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals

  title={Structural color in the Swallow Tanager (
Tersina viridis
): Using the Korringa-Kohn-Rostoker method to simulate disorder in natural photonic crystals},
  author={Christian N. D’Ambrosio and Diana C. Skigin and Marina E. Inchaussandague and Ana S. Barreira and Pablo L. Tubaro},
  journal={Physical Review E},
Mechanisms involved in the production of differently colored feathers in the structurally-colored Swallow Tanager (Tersina viridis; Aves: Thraupidae)
The results suggest that the color differences between the white and greenish-blue plumage are mostly due to the differential deposition of melanin and a reduction of the spongy matrix in some parts of the belly feather barbs, and not a result of changes in the periodicity of theSpongey matrix.
Analysis of the optical properties of the silvery spots on the wings of the Gulf Fritillary, Dione vanillae
Electron microscopy of cross sections through the scales shows that upper and lower lamina, supporting trabeculae, and topping ridges can be approximated by a ‘circus tent’-like geometry, and it is shown that a moderate disorder of this geometry is important for the uniform reflection of light resulting in the silvery appearance.
Optical costs and benefits of disorder in biological photonic crystals.
This article identifies the extent to which biological photonic systems are tolerant of defects and imperfections, and suggests that the use of bio-inspired fault tolerance principles would add value to applied photonic technologies.
Theoretical approaches to study the optical response of the red-legged honeycreeper's plumage (Cyanerpes cyaneus).
In this paper, we investigate the unusual color effect exhibited by the plumage of the heads of Cyanerpes cyaneus males, whose color turns from green to turquoise as the angle between the
Behavioral Ecology of Neotropical Birds
Visual and Acoustic Communication in Neotropical Birds: Diversity and Evolution of Signals
The diversity of visual and vocal signals among Neotropical birds which have been less studied than their counterparts from other biogeographic realms are reviewed to gain a better understanding of avian communication and the factors influencing its evolution.


Structural colour in Tersina viridis
espanolEl color del plumaje de las aves se debe tanto a la presencia de pigmentos como a efectos estructurales selectivos en frecuencia producidos por la interaccion de la luz con la microestructura
Manakins can produce iridescent and bright feather colours without melanosomes
It is hypothesized that iridescent plumage ornaments of male L. iris and L. nattereri are under selection to increase brightness or luminance across wide viewing angles, which may potentially increase their detectability by females during dynamic and fast-paced courtship displays in dim light environments.
Viewing geometry affects sexual dichromatism and conspicuousness of noniridescent plumage of Swallow Tanagers (Tersina viridis)
The results show that viewing geometry can alter color perception, even for noniridescent plumage coloration, and the relative position of the light source and the observer should be considered in studies of avian visual communication, particularly for species with plumages similar to that of Swallow Tanagers.
High refractive index of melanin in shiny occipital feathers of a bird of paradise
Male Lawes's Parotia, a bird of paradise, use the highly directional reflection of the structurally colored, brilliant-silvery occipital feathers in their courtship display. As in other birds, the
How hollow melanosomes affect iridescent colour production in birds
Hollow melanosomes allow birds to produce distinct colours with the same energetically favourable, close-packed configurations, suggesting that a morphological novelty has, at least in part, allowed birds to achieve their vast morphological and colour diversity.
Structure and optical function of amorphous photonic nanostructures from avian feather barbs: a comparative small angle X-ray scattering (SAXS) analysis of 230 bird species
The results further support the hypothesis that colour-producing protein and air nanostructures in feather barbs are probably self-assembled by arrested phase separation of polymerizing β-keratin from the cytoplasm of medullary cells.
Contribution of double scattering to structural coloration in quasiordered nanostructures of bird feathers.
  • H. Noh, S. Liew, Hui Cao
  • Physics
    Physical review. E, Statistical, nonlinear, and soft matter physics
  • 2010
Using the Fourier power spectra of the nanostructures obtained from the small-angle x-ray scattering experiment, the double scattering of light is calculated and it splits into two subpeaks at larger scattering angle.
Dramatic colour changes in a bird of paradise caused by uniquely structured breast feather barbules
The breast-plate plumage of male Lawes' parotia (Parotia lawesii) produces dramatic colour changes when this bird of paradise displays on its forest-floor lek, and it is shown that this effect is achieved not solely by the iridescence, but is based on a unique anatomical modification of the breast-feather barbule.
How noniridescent colors are generated by quasi-ordered structures of bird feathers.
We investigate the mechanism of structural coloration by quasi‐ordered nanostructures in bird feather barbs. Small‐angle X‐ray scattering (SAXS) data reveal the structures are isotropic and have
Development of colour-producing β-keratin nanostructures in avian feather barbs
It is proposed that colour-producing, intracellular, spongy medullary β-keratin nanostructures develop their characteristic sizes and shapes by phase separation during protein polymerization.