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首页> 外文期刊>The Royal Society Proceedings B: Biological Sciences >Vocal learning by greater spear-nosed bats.
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Vocal learning by greater spear-nosed bats.

机译：通过长矛鼻蝙蝠进行声乐学习。

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摘要

Vocal learning is well known among passerine and psittacine birds, but most data on mammals are equivocal. Specific benefits of vocal learning are poorly understood for most species. One case where vocal learning should be favoured by selection is where calls indicate group membership and group mates are unrelated. Female greater spear-nosed bats, Phyllostomus hastatus, live in stable groups of unrelated bats and use loud, broadband calls to coordinate foraging movements of social group mates. Bats benefit from group foraging. Calls differ between female social groups and cave colonies, and playback experiments demonstrate that bats perceive these acoustic differences. Here I show that the group distinctive structure of calls arises through vocal learning. Females change call structure when group composition changes, resulting in increased similarity among new social group mates. Comparisons of transfers with age-matched half-sibs indicate that call changes are not simply due to maturation, the physical environment or heredity. These results suggest that studies testing vocal learning in mammals could profit by focusing on vocalizations that signify group membership.
机译：在雀形目和鹦鹉螺鸟类中声乐学习是众所周知的，但是关于哺乳动物的大多数数据是模棱两可的。大多数物种对声音学习的特定好处了解甚少。选择时应优先选择声音学习的一种情况是，呼叫表明组成员身份与组队友无关。雌性较大的长鼻蝙蝠（Phyllostomus hastatus）生活在一群不相关的蝙蝠的稳定群中，并使用响亮的宽带呼叫协调社交伙伴的觅食运动。蝙蝠从集体觅食中受益。女性社交群体和洞穴殖民地之间的呼唤有所不同，回放实验表明蝙蝠感知到了这些声学差异。在这里，我证明了通过语音学习产生了呼叫的群体独特结构。当小组组成发生变化时，女性会改变呼叫结构，从而导致新的社交小组成员之间的相似度增加。与年龄匹配的半同胞进行的转移比较表明，电话变化不仅仅是由于成熟，物理环境或遗传。这些结果表明，通过关注代表团体成员身份的发声，可以在哺乳动物中测试发声学习的研究可以从中受益。

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