Social mediation of vocal amplitude in a songbird, Taeniopygia guttata
Social mediation of vocal amplitude in a songbird, Taeniopygia guttata
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DOI：
10.1016/j.anbehav.2003.04.008
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发表时间：
2004-03-01
期刊：
影响因子：
2.5
通讯作者：
Gell, C
中科院分区：
文献类型：
--
作者：
Cynx, J;Gell, C
鸟类的发声是在不同的社会背景下产生的。因此，随着社会环境的变化，鸟类可以改变它们信号的幅度。我们通过记录雄性和雌性斑胸草雀（Taeniopygia guttata）来测试这一点，当它们被单独放置时，在听觉接触中，以及与每种性别的视觉和听觉接触中。大多数女性增加呼叫振幅只有当在听觉接触与任何性别。大多数男性增加歌曲和呼叫振幅只有在视觉和听觉接触时，与任何性别。我们发现，在不同的社会条件下，男性或女性的谐波抑制（音色）模式没有变化。对性别差异的一种解释是，女性增加幅度的从属性的原因，而男性增加幅度广告健身。(C)2003年，动物行为研究协会。由爱思唯尔有限公司出版。保留所有权利。
Bird vocalizations are produced under various social contexts. It could therefore benefit: birds, as social contexts change, to alter the amplitude of their signals. We tested this by recording male and female zebra finches, Taeniopygia guttata, when they were placed in isolation, in auditory contact, and in visual and auditory contact with each sex. The majority of females increased call amplitude only when in auditory contact with either sex. Most males increased both song and call amplitudes only when in visual and auditory contact with either sex. We found no changes in patterns of harmonic suppression (timbre) for males or females across social conditions. One explanation for the sex difference is that females increase amplitude for affiliative reasons, whereas males increase amplitude to advertise fitness. (C) 2003 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.