Developmental stress affects song learning but not song complexity and vocal amplitude in zebra finches.
Developmental stress affects song learning but not song complexity and vocal amplitude in zebra finches.
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发育压力会影响斑马雀的鸣叫学习，但不会影响鸣叫的复杂性和发声幅度。
DOI：
10.1007/s00265-009-0749-y
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发表时间：
2009-07
影响因子：
2.3
通讯作者：
Slater, Peter J. B.
中科院分区：
文献类型：
--
作者：
Brumm, Henrik;Zollinger, Sue Anne;Slater, Peter J. B.
关键词：
最近的几项研究验证了这一假设，即成年鸟类的歌声质量可能反映了早期的发育状况，特别是雏鸟时期的营养压力。虽然所有这些早期的研究都发现了早期营养压力和歌曲质量之间的明显联系，但他们的结果并不一致，即歌曲学习或制作的哪些方面受到了影响。在这项研究中，我们试图调和这些明显不一致的结果。我们的研究还首次评估了歌曲幅度与早期发育压力的关系，并将其作为男性质量的潜在线索。我们使用了一种实验操作，在这种操作中，饲养鸟类的种子与外壳混合在一起，使父母更难获得它们。与对照组相比，这些雏鸟羽毛较轻；此后它们被置于正常饮食中，并在100天后被赶上。我们发现，在生命的前30天，营养压力降低了鸟儿对歌曲句法学习的准确性，导致家教歌曲的复制更差。我们的实验操作没有导致歌曲幅度、歌曲持续时间或曲目大小的显著变化。因此，在歌曲表演特征上观察到的个体差异可能反映了当前条件或动机的差异，而不是过去条件的差异。
Several recent studies have tested the hypothesis that song quality in adult birds may reflect early developmental conditions, specifically nutritional stress during the nestling period. Whilst all of these earlier studies found apparent links between early nutritional stress and song quality, their results disagree as to which aspects of song learning or production were affected. In this study, we attempted to reconcile these apparently inconsistent results. Our study also provides the first assessment of song amplitude in relation to early developmental stress and as a potential cue to male quality. We used an experimental manipulation in which the seeds on which the birds were reared were mixed with husks, making them more difficult for the parents to obtain. Compared with controls, such chicks were lighter at fledging; they were thereafter placed on a normal diet and had caught up by 100 days. We show that nutritional stress during the first 30 days of life reduced the birds’ accuracy of song syntax learning, resulting in poorer copies of tutor songs. Our experimental manipulations did not lead to significant changes in song amplitude, song duration or repertoire size. Thus, individual differences observed in song performance features probably reflect differences in current condition or motivation rather than past condition.
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影响因子：
2.3
作者：
Brumm, Henrik
通讯作者：
Brumm, Henrik
影响因子：
1.7
作者：
Soma, Masayo;Takahasi, Miki;Okanoya, Kazuo
通讯作者：
Okanoya, Kazuo
影响因子：
3.5
作者：
Spencer, KA;Buchanan, KL;Catchpole, CK
通讯作者：
Catchpole, CK
影响因子：
2.5
作者：
Cynx, J;Gell, C
通讯作者：
Gell, C
DOI：
10.1098/rstb.1999.0444
发表时间：
1999-05-29
期刊：
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES
影响因子：
--
作者：
Suthers, RA;Goller, F;Pytte, C
通讯作者：
Pytte, C