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Song sharing in two populations of song sparrows (Melospiza melodia)

โœ Scribed by Christopher E. Hill; S. Elizabeth Campbell; J. Cully Nordby; John M. Burt; Michael D. Beecher


Book ID
105974072
Publisher
Springer
Year
1999
Tongue
English
Weight
190 KB
Volume
46
Category
Article
ISSN
0340-5443

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โœ John C. Wingfield; Masaru Wada ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Springer ๐ŸŒ English โš– 598 KB

Previous investigations have shown that malemale interactions over territory boundaries result in an increase in plasma levels of testosterone (T). In order to determine the time course of this increase following an agonistic challenge, male song sparrows, Zonotrichia (= Melospiza) melodia, were exp