Developmental stress, condition, and birdsong: a case study in song sparrows.
Developmental stress, condition, and birdsong: a case study in song sparrows.
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发育压力、条件和鸟鸣：歌麻雀的案例研究。
DOI：
10.1093/icb/icu090
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发表时间：
2014
影响因子：
2.6
通讯作者：
S. MacDougall
中科院分区：
文献类型：
--
作者：
Kim L. Schmidt;E. MacDougall;S. Kubli;S. MacDougall
性选择理论认为，装饰品和展示可以反映信号者的状况，而信号者的状况又受到近期和发展状况的影响。此外，发育条件可以诱导性选择和其他性状之间的相关性，如果这两种类型的性状表现出发展的表型可塑性，在应对压力。因此，性选择的性状可能反映了最近和/或发育特征的信号。在这里，我们回顾了对鸣禽麻雀（Melospiza melodia）种群进行的长期研究中有关鸟鸣（一种性选择特征）与鸟类发育和当前状况之间关系的数据。对自由生活的鸟类的实地研究表明，雄性歌曲的复杂性是一种永久性特征，反映了其大脑歌曲控制区域（HVC）的大小，并与身体大小和免疫力的几个参数相关，特别是保护蛋白的投资。然而，男性的歌曲，一个动态特性的表现，是不相关的免疫投资。歌曲的复杂性与糖皮质激素应激反应相关，在某些年份，应激反应可预测越冬存活率。实验操作表明，早期生活中的压力会损害HVC的发展，但HVC的大小在成年后会恢复。这些操作会导致歌曲复杂性和歌曲学习受损，但不会导致歌曲表演受损。实验性发育压力也会影响生长、内分泌生理学、代谢和免疫功能，通常是以性别特异性的方式。结合起来，这些研究表明，歌曲的复杂性提供了可靠的信息，早期的发展经验，以及其他性状，有关键的发展时期。因此，鸟鸣提供了一个多方面的性选择的特点，可能是一个指标的发展和最近的条件。
Sexual-selection theory posits that ornaments and displays can reflect a signaler's condition, which in turn is affected both by recent and developmental conditions. Moreover, developmental conditions can induce correlations between sexually selected and other traits if both types of traits exhibit developmental phenotypic plasticity in response to stressors. Thus, sexually selected traits may reflect recent and/or developmental characteristics of signalers. Here, we review data on the relationships between birdsong, a sexually selected trait, and developmental and current condition of birds from a long-term study of a population of song sparrows (Melospiza melodia). Field studies of free-living birds indicate that the complexity of a male's songs, a permanent trait, reflects the size of a song-control region of his brain (HVC), and is correlated with body size and several parameters of immunity, specifically investment in protective proteins. However, the performance of a male's songs, a dynamic trait, is not correlated to immune investment. Complexity of song is correlated with the glucocorticoid stress-response, and in some years response to stress predicts overwinter survival. Experimental manipulations have revealed that stressors in early life impair development of HVC, but that HVC recovers in size by adulthood. These manipulations result in impaired song-complexity and song-learning, but not song-performance. Experimental developmental stressors also affect growth, endocrine physiology, metabolism, and immune-function, often in a sex-specific manner. Combined, these studies suggest that song-complexity provides reliable information about early developmental experience, and about other traits that have critical developmental periods. Birdsong thus provides a multi-faceted sexually selected trait that may be an indicator both of developmental and recent conditions.
DOI：
--
发表时间：
2020
期刊：
--
影响因子：
--
作者：
J. Seckl
通讯作者：
J. Seckl