Patterns of sex ratio variation in House Sparrows

• Published in: The Condor (Los Angeles, Calif.) Vol. 104; no. 3; p. 598
• Main Authors: Westneat, David F, Stewart, Ian R K, Emily Halpin Woeste, Gipson, Johnny
• Format: Journal Article
• Language: English
• Published: Waco American Ornithological Society 01.08.2002
• Subjects: Animal populations; Birds; Breeding seasons; Ornithology; Sex ratio; Sexes

PCR amplification of a sex-linked gene was used to assay the sex ratio of nestling House Sparrows) from five consecutive breeding seasons. Westneat et al tested several predictions from sex ratio theory, including that at the population level, sparrows should produce a 1:1 sex ratio.