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Testosterone induction of song in photosensitive and photorefractory male sparrows

✍ Scribed by Stephen Nowicki; Gregory F. Ball


Book ID
115941702
Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
816 KB
Volume
23
Category
Article
ISSN
0018-506X

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Changes in plasma levels of testosterone
✍ John C. Wingfield; Masaru Wada πŸ“‚ Article πŸ“… 1989 πŸ› Springer 🌐 English βš– 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