Research Topics
| Kevin J McGrawSummaryAffiliation: Cornell University Country: USA Publications
| Collaborators |
Detail Information
Publications
Differential effects of endoparasitism on the expression of carotenoid- and melanin-based ornamental colorationK J McGraw
Department of Biological Sciences and Alabama Agricultural Experiment Station, Auburn University, 36849, USA
Proc Biol Sci 267:1525-31. 2000..These findings provide the most robust empirical support to date for the notion that carotenoid and melanin ornaments reveal different information to conspecifics...
Multiple UV reflectance peaks in the iridescent neck feathers of pigeonsKevin J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
Naturwissenschaften 91:125-9. 2004..Such elaborate UV coloration suggests that birds may use an even more complex and 'hidden' UV signaling system than previously thought...
Carotenoids, immunocompetence, and the information content of sexual colors: an experimental testKevin J McGraw
1 Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA
Am Nat 162:704-12. 2003..These experimental findings suggest that carotenoid-based color signals in birds may directly signal male health via the immunostimulatory action of ingested and circulated carotenoid pigments...
Lutein-based plumage coloration in songbirds is a consequence of selective pigment incorporation into feathersK J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
Comp Biochem Physiol B Biochem Mol Biol 135:689-96. 2003..trichas and D. petechia and again detected both lutein and zeaxanthin. This suggests that selective lutein incorporation in feathers is under local control at the maturing feather follicle...
Different colors reveal different information: how nutritional stress affects the expression of melanin- and structurally based ornamental plumageKevin J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
J Exp Biol 205:3747-55. 2002....
Anhydrolutein in the zebra finch: a new, metabolically derived carotenoid in birdsK J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
Comp Biochem Physiol B Biochem Mol Biol 132:811-8. 2002..These results suggest that zebra finches metabolically derive anhydrolutein from dietary sources of lutein. The production site and physiological function of anhydrolutein have yet to be determined...
The effect of dietary carotenoid access on sexual dichromatism and plumage pigment composition in the American goldfinchK J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
Comp Biochem Physiol B Biochem Mol Biol 131:261-9. 2002..g. absorb, transport, metabolize, deposit) carotenoid pigments available to them in the diet...
The influence of carotenoid acquisition and utilization on the maintenance of species-typical plumage pigmentation in male American goldfinches (Carduelis tristis) and northern cardinals (Cardinalis cardinalis)K J McGraw
Department of Biological Sciences, 331 Funchess Hall, Auburn University, Auburn, AL 36849, USA
Physiol Biochem Zool 74:843-52. 2001..We also found that northern cardinals grew pale red feathers in the absence of red dietary pigments, indicating that their ability to metabolize yellow carotenoids in the diet contributes to the bright red plumage that they display...
Differential accumulation and pigmenting ability of dietary carotenoids in colorful finchesKevin J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853, USA
Physiol Biochem Zool 77:484-91. 2004..Collectively, these results demonstrate that zeaxanthin is preferentially accumulated in the body and serves as a more potent substrate for pigmentation than lutein in these finches...
Sex steroid dependence of carotenoid-based coloration in female zebra finchesKevin J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
Physiol Behav 88:347-52. 2006....
Carotenoid supplementation and GnRH challenges influence female endocrine physiology, immune function, and egg-yolk characteristics in Japanese quail (Coturnix japonica)Susana I Peluc
Department of Biological Sciences, North Dakota State University, Fargo, ND, 58102, USA
J Comp Physiol B 182:687-702. 2012....
How dewlap color reflects its carotenoid and pterin content in male and female brown anoles (Norops sagrei)John E Steffen
Department of Biological Sciences, Auburn University, Auburn, AL 36849 5407, USA
Comp Biochem Physiol B Biochem Mol Biol 154:334-40. 2009..These results demonstrate that sexes differ in how pigment classes influence dewlap spectral variation, but also that there may be other aspects of the integument not measured here that also influence dewlap color...
A novel lipoprotein-mediated mechanism controlling sexual attractiveness in a colorful songbirdKevin J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14583, USA
Physiol Behav 87:103-8. 2006..These results suggest that the production of circulating lipoproteins critically regulates the development of a colorful sexually selected trait in zebra finches...
Do carotenoids buffer testosterone-induced immunosuppression? An experimental test in a colourful songbirdKevin J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
Biol Lett 3:375-8. 2007..Our findings highlight a nutrient-specific mechanism by which animals escape high immune costs of T elevation and thus can still elevate ornamentation...
Distribution of unique red feather pigments in parrotsKevin J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
Biol Lett 1:38-43. 2005....
The evolution of carotenoid coloration in estrildid finches: a biochemical analysisK J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
Comp Biochem Physiol B Biochem Mol Biol 139:45-51. 2004..g., in the Poephilini), suggesting that the occurrence of carotenoid metabolism can be labile and is likely shaped by the relative costs and benefits of color signaling across different species...
Carotenoid pigments and the selectivity of psittacofulvin-based coloration systems in parrotsK J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853, USA
Comp Biochem Physiol B Biochem Mol Biol 138:229-33. 2004..As there is no evidence of psittacofulvins in parrot blood at the tune of feather growth, we presume that these pigments are locally synthesized by growing feathers within the follicular tissue...
Contributions of pterin and carotenoid pigments to dewlap coloration in two anole speciesJohn E Steffen
Department of Biological Sciences, Auburn University, 331 Funchess Hall, Auburn, AL 36849, USA
Comp Biochem Physiol B Biochem Mol Biol 146:42-6. 2007....
Circulating carotenoid concentrations are positively correlated with later clutch initiation in Florida Scrub-Jays (Aphelocoma coerulescens)Rebecca S Heiss
Department of Biological Sciences, University of Memphis, Memphis, Tennessee 38152, USA
J Exp Zool A Ecol Genet Physiol 315:101-10. 2011....
Dynamic paternity allocation as a function of male plumage color in barn swallowsR J Safran
Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY 14853, USA
Science 309:2210-2. 2005....
Maternally derived carotenoid pigments affect offspring survival, sex ratio, and sexual attractiveness in a colorful songbirdK J McGraw
Department of Neurobiology and Behavior, Cornell University, Ithaca, NY, 14853, USA
Naturwissenschaften 92:375-80. 2005....
Modified saponification and HPLC methods for analyzing carotenoids from the retina of quail: implications for its use as a nonprimate model speciesMatthew B Toomey
School of Life Sciences, Arizona State University, Tempe, Arizona 85287 4501, USA
Invest Ophthalmol Vis Sci 48:3976-82. 2007....
An experimental test of the contributions and condition dependence of microstructure and carotenoids in yellow plumage colorationMatthew D Shawkey
Department of Environmental Science, Policy and Management, Ecosystem Science Division, University of California, 137 Mulford Hall 3114, Berkeley, CA 94720 3114, USA
Proc Biol Sci 273:2985-91. 2006....
Animal coloration: sexy spider scalesLisa A Taylor
School of Life Sciences, Arizona State University, Tempe, AZ 85287, USA
Curr Biol 17:R592-3. 2007..A recent microscopic study on a jumping spider from Singapore shows that three-layered 'scale sandwiches' of chitin and air are responsible for producing their brilliant iridescent body coloration...
A description of unique fluorescent yellow pigments in penguin feathersKevin J McGraw
Pigment Cell Res 20:301-4. 2007
Sexual signal exaggeration affects physiological state in male barn swallowsRebecca J Safran
Curr Biol 18:R461-2. 2008
Interspecific associations between circulating antioxidant levels and life-history variation in birdsAlan A Cohen
Department of Biology, University of Missouri, St Louis, Missouri 63121, USA
Am Nat 172:178-93. 2008....
Melanin, nutrition, and the lion's maneGeoffrey E Hill
Science 299:660; author reply 660. 2003
Sex-biased hatching order and adaptive population divergence in a passerine birdAlexander V Badyaev
Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA
Science 295:316-8. 2002..These strong parental effects may have facilitated the rapid adaptive divergence among populations of house finches...
