Changes in plasma levels of testosterone
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John C. Wingfield; Masaru Wada
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Article
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1989
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Springer
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English
โ 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