Plumage Coloration
Relationships among plumage coloration, blood selenium concentrations and immune responses of adult and nestling tree swallows
... colorful plumage that may be produced by pigments deposited in feathers (carotenoid- and melanin- based colors) or by the feather microstructure (structural ...that plumage coloration is frequently ...
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The effect of mycoplasmosis on carotenoid plumage coloration in male house finches
... Previous experimental studies of parasites and plumage coloration in house finches have focused on coccidiosis. In one sense, these studies are particularly valuable because they focus on a parasite for ...
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Brightness of melanin-based plumage coloration is a cue to oxidative stress in Himalayan Black Bulbuls (Hypsipetes leucocephalus nigerrimus)
... Their plumage coloration is entirely melanin- based; black plumage with grey patches on the scapular feathers and ...black plumage coloration, with brighter individuals ...
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Aberrations in plumage coloration in birds
... Plumage coloration in birds is the result of the deposition of a combination of pigments in the ...their plumage but synthesise a different type of yellow, orange and red pigments called ...
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Oxidative stress and information content of black and yellow plumage coloration: an experiment with greenfinches
... We performed a 2 ⫻ 2 factorial experiment by manipulating dietary carotenoids and systemic GSH levels, and recorded the effects of these treatments upon coloration of black and yellow parts of tail feathers grown ...
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The influence of visual environment and sympatry on plumage coloration in New World warblers
... reproductive responses to a common evolutionary problem.. Correlated evolution of morphology and vocal signal stmcture in Darwin's finches. Beaks, adaptation, and vocal evolution in Dar[r] ...
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Decreased hydrophobicity of iridescent feathers: a potential cost of shiny plumage
... The evolution of the bright colours of metazoans has been the subject of intense research ever since Darwin (Darwin, 1871). In addition to their roles in, among other things, flight and thermoregulation, bird feathers ...
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Hydrophobic Disperse and Polymeric Dyes for the Coloration of UHMWPE Medical Sutures.
... The expected increases in LogP’s are observed as the longer alkyl chains were substituted onto the analog dye structures. The increase from these estimations is around 1 in LogP for every two carbons that were added. The ...
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Age dependent allocation of carotenoids to coloration versus antioxidant defences
... antioxidant machinery might weaken with age, the consequences of an oxidative burst triggered by the immune challenge are expected to be more detrimental in old individuals. Therefore, old individuals might invest more ...
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Carotenoid based coloration, oxidative stress and corticosterone in common lizards
... ventral coloration of males (Fitze et ...yellow–orange coloration of the male belly, and the carotenoid content of the skin can be predicted from measurements of its coloration (Fitze et ...of ...
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Plumage quality mediates a life-history trade-off in a migratory bird
... juvenile plumage [23]; 2) tail feathers are subject to lower mechanical strain than wing feathers and are likely to show smaller abrasion [24]; we observed no visible signs of wear at the tips of juvenile ...
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THE GENETICS OF ANTHOCYANIN COLORATION IN EGGPLANT (SOLANUM MELONGENA L.)
... and distribution were used: Sinkuro and Osaka Maru produce iiiiense purple pigmentation in all plant parts; Rosita produces a light vinaceous coloration in the hypocoty[r] ...
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INHERITANCE OF PLUMAGE COLOR IN THE RHODE ISLAND RED BREED OF DOMESTIC FOWL
... Females of the composition BBLoee would not breed true for Red because half their female progeny would be white when mated to BBLl males.. HAYS[r] ...
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Physiological trade offs in self maintenance: plumage molt and stress physiology in birds
... Whereas plumage molt represents a relatively long-term investment in survival, the stress response constitutes a suite of physiological and behavioral processes that direct resources towards immediate survival of ...
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Bio-coloration of bacterial cellulose assisted by immobilized laccase
... dyeing under the same conditions. The color depth of the dyed wool fabrics increased gradually with increas- ing concentration of laccase, and also depended on other process parameters, such as dosage of catechol, ...
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The Effect of Live Food on the Coloration and Growth in Guppy Fish, Poecilia reticulata
... Poecilia reticulata is one of the most traded fish in ornamental aquaculture; there are many varieties which are characterised by the colour pattern. As in other species, coloration in P. reticulata could indicate ...
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The structural coloration of textile materials using self-assembled silica nanoparticles
... of 420 to 620 nm. The comparison of structurally coloured opal films on glass and on fabrics suggests that a smooth substrate is critical when producing materials with high colour intensity and spatial uniformity. The ...
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Body Shape and Coloration of Silkworm Larvae Are Influenced by a Novel Cuticular Protein
... and coloration patterns on caterpillars is often assumed to be regulated separately, but it is possible that common molecules affect both types of trait ...
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Multiple social and ecological factors influence coloration in bluegills (Lepomis macrochirus)
... the evolution of female mate choice in this species.. Costs of sexual advertising in the lekking Jackson's widowbird. - Princeton University Press, Princeton, New Jersey. The advantages[r] ...
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Thermo-oxidative and weathering degradation affecting coloration performance of lac dye
... Under dynamic heating, the lac dye started to degrade at temperatures higher than 150 °C which mainly involved the thermo-oxidative reaction at carboxylic groups in conjugation with th[r] ...
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