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The role of unshared songs in singing interactions between neighbouring song sparrows

✍ Scribed by Michael D. Beecher; S. Elizabeth Campbell


Book ID
113450595
Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
303 KB
Volume
70
Category
Article
ISSN
0003-3472

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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