Function of male song in the greater white-lined bat, Saccopteryx bilineata
Function of male song in the greater white-lined bat, Saccopteryx bilineata
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DOI：
10.1016/j.anbehav.2003.06.016
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发表时间：
2004-05-01
期刊：
影响因子：
2.5
通讯作者：
Wilkinson, GS
中科院分区：
文献类型：
--
作者：
Davidson, SM;Wilkinson, GS
雄性使用发声来吸引配偶和保卫领土在鸟类中很普遍，但在哺乳动物中很少见。在更大的白线蝙蝠中，雄性蝙蝠在树上保卫小块领土，并发出复杂的可听得见的发声。白天，雌性在这些领地内栖息，有雌性的雄性比没有雌性的雄性有更高的繁殖成功率。为了确定叫声功能，我们记录了特立尼达岛上的配偶发声，并对发出叫声时的焦点雄性蝙蝠和附近的蝙蝠进行了行为观察。嘈杂的宽带呼叫主要针对其他男性，而音调呼叫主要用于与女性的互动。另外两种类型的呼吁是独立于任何可观察到的背景而发出的，可能涉及领土防御或具体通知。泊松回归表明，歌曲曲目包含更多独特类型的复合音节的男性在他们的领地上有更多的女性。此外，一种常见叫声类型的几个声学特征与一个地区的雌性数量显著相关。因此，男性发声可能会将有关男性素质或战斗能力的信息传递给群体成员。(C)2004年，动物行为研究协会。爱思唯尔有限公司出版。保留所有权利。
The use of vocalizations by males to attract mates and defend territories is widespread in birds but uncommon in mammals. In the greater white-lined bat, males defend small territories in tree buttresses and produce complex audible vocalizations. During the day, females roost within these territories, and males with females in their territories have higher reproductive success than males without females. To determine call function, we recorded mate vocalizations on the island of Trinidad and made behavioural observations of the focal male and nearby, bats at the time the calls were given. Noisy broadband calls were directed mainly at other males whereas tonal calls were used primarily in interactions with females. Two other types of calls were given independently of any observable context and may be involved in territorial defence or conspecific notification. Poisson regression showed that males with song repertoires that contained more unique types of composite syllables had more females in their territories. In addition, several acoustic features of one common call type significantly correlated with the number of females on a territory. Male vocalizations may, therefore, transfer information to colony members about male quality or fighting ability. (C) 2004 The Association for the Study of Animal Behaviour. Published by Elsevier Ltd. All rights reserved.