Metabolic and respiratory costs of increasing song amplitude in zebra finches.
Metabolic and respiratory costs of increasing song amplitude in zebra finches.
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DOI：
10.1371/journal.pone.0023198
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发表时间：
2011
期刊：
影响因子：
3.7
通讯作者：
Brumm H
中科院分区：
文献类型：
--
作者：
Zollinger SA;Goller F;Brumm H
鸟鸣是动物交流和性选择研究中广泛使用的一种模式，几种鸣叫特征已被证明反映了歌唱者的质量。最近的研究表明，歌曲的振幅可能是一个诚实的信号，目前的条件下，男性和女性更喜欢高振幅的歌曲。此外，鸟类会提高歌声的振幅，以便在嘈杂的环境中进行交流。虽然人们普遍认为，更响亮的歌曲应该是更昂贵的生产，有很少的经验证据来支持这一假设。我们测试的假设，通过测量成年雄性斑胸草雀（Taeniopygia guttata）在不同的背景噪声条件下，在不同的振幅唱歌的耗氧量和呼吸模式。随着背景噪音水平的增加，鸟类的歌声声压水平显着增加。我们发现，响亮的歌曲需要显着更大的舌下气囊压力比安静的歌曲。虽然压力增加可能是通过增加呼吸肌活动来实现的，但这些增加与耗氧量的可测量增加无关。此外，我们发现，氧气消耗增加，在较高的背景噪音，独立的歌唱行为。这一观察结果支持了先前在哺乳动物中的研究，即高水平的环境噪音可以诱导生理应激反应。虽然我们的研究没有发现增加声音幅度会增加代谢成本，但还需要进一步的研究来确定是否有其他非代谢成本与慢性噪音暴露有关。
Bird song is a widely used model in the study of animal communication and sexual selection, and several song features have been shown to reflect the quality of the singer. Recent studies have demonstrated that song amplitude may be an honest signal of current condition in males and that females prefer high amplitude songs. In addition, birds raise the amplitude of their songs to communicate in noisy environments. Although it is generally assumed that louder song should be more costly to produce, there has been little empirical evidence to support this assumption. We tested the assumption by measuring oxygen consumption and respiratory patterns in adult male zebra finches (Taeniopygia guttata) singing at different amplitudes in different background noise conditions. As background noise levels increased, birds significantly increased the sound pressure level of their songs. We found that louder songs required significantly greater subsyringeal air sac pressure than quieter songs. Though increased pressure is probably achieved by increasing respiratory muscle activity, these increases did not correlate with measurable increases in oxygen consumption. In addition, we found that oxygen consumption increased in higher background noise, independent of singing behaviour. This observation supports previous research in mammals showing that high levels of environmental noise can induce physiological stress responses. While our study did not find that increasing vocal amplitude increased metabolic costs, further research is needed to determine whether there are other non-metabolic costs of singing louder or costs associated with chronic noise exposure.
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影响因子：
2.5
作者：
Cynx, J;Lewis, R;Tse, H
通讯作者：
Tse, H
影响因子：
2.2
作者：
Mann, EA;McClean, MD;Patow, C
通讯作者：
Patow, C
影响因子：
5.7
作者：
Habib, Lucas;Bayne, Erin M.;Boutin, Stan
通讯作者：
Boutin, Stan
影响因子：
2.2
作者：
AKERLUND, L;GRAMMING, P;SUNDBERG, J
通讯作者：
SUNDBERG, J
DOI：
10.1196/annals.1298.009
发表时间：
2004-01-01
期刊：
BEHAVIORAL NEUROBIOLOGY OF BIRDSONG
影响因子：
--
作者：
Goller, F;Cooper, BG
通讯作者：
Cooper, BG