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Keywords: melanins
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Journal Articles
J Exp Biol (2016) 219 (19): 3091–3099.
Published: 1 October 2016
... and enlarged cloacal protuberance, but (3) appear constrained in production of male-typical melanin-pigmented plumage, and (4) low androgen levels during the pre-nuptial molt, probably because of low ovarian capacity for steroid production (or luteinizing hormone sensitivity), prevent females from developing...
Includes: Supplementary data
Journal Articles
J Exp Biol (2009) 212 (8): 1225–1233.
Published: 15 April 2009
...Geoffrey E. Hill; Wendy R. Hood; Kristal Huggins SUMMARY It has been well established that carotenoid and melanin pigmentation are often condition-dependent traits in vertebrates. Expression of carotenoid coloration in birds has been shown to reflect pigment intake, food access and parasite load...