scholarly journals Carotenoid‐based plumage colour saturation increases with temperature in Australian passerines

2020 ◽  
Vol 47 (12) ◽  
pp. 2671-2683
Author(s):  
Audrey Miranda Prasetya ◽  
Anne Peters ◽  
Kaspar Delhey
Keyword(s):  
Plumage Colour ◽  
Colour Saturation ◽  
Australian Passerines

scholarly journals Nonsense mutation in PMEL is associated with yellowish plumage colour phenotype in Japanese quail

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Satoshi Ishishita ◽  
Mayuko Takahashi ◽  
Katsushi Yamaguchi ◽  
Keiji Kinoshita ◽  
Mikiharu Nakano ◽  
...  
Keyword(s):  
Japanese Quail ◽  
Nonsense Mutation ◽  
Plumage Colour

The survival rate of Australian passerines

Ibis ◽  
2008 ◽  
Vol 134 (4) ◽  
pp. 374-379 ◽  
Author(s):  
YORAM YOM-TOV ◽  
ROBIN McCLEERY ◽  
DAVID PURCHASE
Keyword(s):  
Survival Rate ◽  
Australian Passerines

scholarly journals Research on the Application of Artificial Intelligence Technology in Computer Graphics Processing

2021 ◽  
Vol 2083 (4) ◽  
pp. 042037
Author(s):  
Xia Yang
Keyword(s):  
Artificial Intelligence ◽  
Threshold Value ◽  
Shooting Methods ◽  
Colour Space ◽  
Space Transformation ◽  
Artificial Intelligence Technology ◽  
Colour Saturation ◽  
Hsv Colour Space ◽  
Graphics Processing ◽  
Bright Area

Abstract In structured light geometric reconstruction, due to the complexity of shooting methods and scene lighting conditions, the resulting images may be lack of image details due to uneven light. For this reason, the article proposes a Retinex algorithm with colour restoration and colour saturation correction strategy based on HSV colour space transformation based on artificial intelligence technology. Then distinguish whether it is a bright area according to the threshold value, and modify the insufficient transmittance estimation of the bright area. Finally, the intensity component and saturation value are restored in the HIS colour space, and the histogram is used to stretch the intensity component.

scholarly journals Prediction of Market Weight in Caribro-Dhanraja Broilers with Different Plumage Colour Using Growth Traits

2018 ◽  
Vol 7 (09) ◽  
pp. 1147-1155
Author(s):  
T.K. Patbandha ◽  
D.D. Garg ◽  
D.G. Vaghamashi ◽  
S. Marandi ◽  
K. Ravikala ◽  
...  
Keyword(s):  
Growth Traits ◽  
Plumage Colour

Associations between plumage colour and fear behaviour in young Nigerian indigenous turkeys (Meleagris gallopavo)

2021 ◽  
Vol 244 ◽  
pp. 105483
Author(s):  
Samuel O. Durosaro ◽  
Oluwaseun S. Iyasere ◽  
David O. Oguntade ◽  
Babatunde M. Ilori ◽  
Tejumola A. Odubola ◽  
...  
Keyword(s):  
Meleagris Gallopavo ◽  
Plumage Colour

Multiple components of feather microstructure contribute to structural plumage colour diversity in fairy-wrens

2019 ◽  
Vol 128 (3) ◽  
pp. 550-568 ◽  
Author(s):  
Marie Fan ◽  
Liliana D’alba ◽  
Matthew D Shawkey ◽  
Anne Peters ◽  
Kaspar Delhey
Keyword(s):  
Plumage Colour ◽  
Structural Elements ◽  
Closely Related Species ◽  
Microscopic Scale ◽  
Colour Variation ◽  
Multiple Components ◽  
Spongy Layer ◽  
Evolutionary Changes ◽  
Genetic And Environmental Factors ◽  
Feather Microstructure

AbstractClosely related species often differ in coloration. Understanding the mechanistic bases of such differences can reveal whether evolutionary changes in colour are driven by single key mechanisms or changes in multiple pathways. Non-iridescent structural plumage colours in birds are a good model in which to test these questions. These colours result from light absorption by pigments, light scattering by the medullary spongy layer (a nanostructure found within barbs) and contributions from other structural elements. Fairy-wrens (Malurus spp.) are a small clade of closely related birds that display a large diversity of ornamental structural colours. Using spectrometry, electron microscopy and Fourier analysis, we show that 30 structural colours, varying from ultraviolet to blue and purple, share a similar barb morphology. Despite this similarity, we find that at the microscopic scale, variation across multiple structural elements, including the size and density of the keratin cortex, spongy layer and melanin, explains colour diversity. These independent axes of morphological variation together account for sizeable amounts of structural colour variability (R2 = 0.21–0.65). The coexistence of many independent, evolutionarily labile mechanisms that generate colour variation suggests that the diversity of structural colours in this clade could be mediated by many independent genetic and environmental factors.

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