The Effects of Testosterone on Antibody Production and Plumage Coloration in Male House Sparrows (Passer domesticus) Author(s): Matthew R. Evans, Arthur R. Goldsmith, Sasha R. A. Norris Reviewed work(s): Source: Behavioral Ecology and Sociobiology, Vol. 47, No. 3 (Feb., 2000), pp. 156-163 Published by: Springer Stable URL: http://www.jstor.org/stable/4601725 . Accessed: 29/03/2012 10:05 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org. Springer is collaborating with JSTOR to digitize, preserve and extend access to Behavioral Ecology and Sociobiology. http://www.jstor.org