Testosterone regulates scarlet plumage in red-backed fairy-wrens
نویسندگان
چکیده
منابع مشابه
The effects of delayed plumage maturation on aggression and survival in male red-backed fairy-wrens
Jordan Karubian, T. Scott Sillett, and Michael S. Webster Center for Tropical Research, Institute of the Environment, University of California at Los Angeles, La Kretz Hall, Suite 300, Box 951496, Los Angeles, CA 90095, USA, Smithsonian Migratory Bird Center, National Zoological Park, PO Box 37012, MRC 5503, Washington, DC 20013, USA, and School of Biological Sciences and Center for Reproductiv...
متن کاملSexually Selected Male Plumage Color Is Testosterone Dependent in a Tropical Passerine Bird, the Red-Backed Fairy-Wren (Malurus melanocephalus)
BACKGROUND Sexual signals, such as bright plumage coloration in passerine birds, reflect individual quality, and testosterone (T) may play a critical role in maintaining signal honesty. Manipulations of T during molt have yielded mixed effects on passerine plumage color, in most cases delaying molt or leading to production of drab plumage. However, the majority of these studies have been conduc...
متن کاملBody condition influences sexual signal expression independent of circulating androgens in male red-backed fairy-wrens.
Androgens play a major role in the regulation of sexual signal expression of male vertebrates. In this study we assessed the prevalent, yet largely untested, assumption that signal honesty is maintained through condition-dependent androgen regulation by experimentally manipulating body condition of male red-backed fairy-wrens (Malurus melanocephalus) through trimming several flight feathers bef...
متن کاملPlumage coloration, ejaculate quality and reproductive phenotype in the red-backed fairy-wren
* Correspondence and present address: M. Rowe, Sc State University, P.O. Box 874501, Tempe, AZ 85287-4 E-mail address: [email protected] (M. Rowe 1 J. P. Swaddle is at the Institute for Integrative B Department, College of William and Mary, Williamsb 2 S. Pruett-Jones is at the Department of Ecology Chicago, 1101 East 57th Street, Chicago, IL 60637-150 3 M. S. Webster is now at the Macaulay...
متن کاملCosts and benefits of variable breeding plumage in the red-backed fairy-wren.
The red-backed fairy-wren is a socially monogamous passerine bird which exhibits two distinct types of breeding male, bright males that breed in bright red and black plumage and dull males that breed in dull brown plumage. Most males spend their first potential breeding season in dull plumage and subsequent breeding seasons in bright plumage, but a relatively small proportion of males develop b...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2016
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.149609