Carotenoid Plasma Concentration, Immune Profile, and Plumage Ornamentation of Male Barn Swallows (Hirundo rustica)

@article{Saino1999CarotenoidPC,
  title={Carotenoid Plasma Concentration, Immune Profile, and Plumage Ornamentation of Male Barn Swallows (Hirundo rustica)},
  author={Nicola Saino and Riccardo Stradi and Paola Ninni and Elena Pini and Anders Pape M{\o}ller},
  journal={The American Naturalist},
  year={1999},
  volume={154},
  pages={441 - 448}
}
Carotenoids exert immunomodulating, immunostimulating, and antioxidant actions in mammals and are major determinants of coloration in animals. Honest advertisement models of sexual selection propose that male ornaments, including coloration, are reliable indicators of male quality. Because of their simultaneous effects on male coloration and immunity, carotenoids might mediate the hypothesized relationship between the expression of epigamic coloration and parasitism in vertebrates. We analyzed… 

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References

SHOWING 1-10 OF 47 REFERENCES

Influence of dietary carotenoids on plasma and plumage colour in the house finch: intra- and intersexual variation

To test the hypothesis that variation in carotenoid pigmentation of feathers is caused by processes that occur before the uptake ofcarotenoids by follicle cells during moult, the hues of blood plasma and growing feathers were compared in three populations of house finches that differed in median male plumage brightness.

Immunocompetence, ornamentation, and viability of male barn swallows (Hirundo rustica).

The results of this study are the first to demonstrate that immunocompetence can predict long-term survival in a free-ranging vertebrate and are compatible with current models of parasite-mediated sexual selection.

Sexual dichromatism and the immunocompetence handicap: an observational approach using Arctic charr

It is shown that expression of red coloration in the salmonid Arctic charr is a sexually dimorphic character that reveals information of potential importance in sexual selection.

Carotenoids, parasites, and sexual selection

Carotenoids are currently recognized not only as an essential part of a normal diet, but also as free radical scavengers as well as potential prophylactics against cancer and stimulants of the immune system.

Proximate basis of variation in carotenoid pigmentation in male house finches

Captive males converged on a similar appearance after completing prebasic molt on a standardized diet, with significantly less variance in coloration than is found among wild males, and there was a significant positive correlation between patch size and plumage brightness.

Role of carotenoids in the immune response.

  • B. Chew
  • Biology, Medicine
    Journal of dairy science
  • 1993
The immunostimulatory action of carotenoids may be translated into improved health, including mammary and reproductive health in dairy cattle, and more studies are needed to establish fully the beneficial effects of supplementation of different carOTenoids on the health of dairy cattle.

Carotenoids and Sexual Dichromatism in North American Passerine Birds

The relationship between sexual dichromatism and the use of carotenoids in plumage suggests that sexual selection may have promoted the expression of a condition-dependent honest indicator of phenotypic quality.

Plumage coloration is a sexually selected indicator of male quality

Results of field studies indicate that females prefer to mate with colourful males and that plumage brightness correlates with a male's capactity for parental care and perhaps its genotypic quality.

Sexual selection, feather breakage and parasites: the importance of white spots in the tail of the barn swallow (Hirundo rustica)

The cost of increased risk of feather breakage at white tail spots and the non-random distribution of feather lice among individuals will render tail spots a reliable signal of phenotypic quality.