Sex difference in signature whistle production of free-ranging bottlenose dolphins, Tursiops truncates
Sex difference in signature whistle production of free-ranging bottlenose dolphins, Tursiops truncates
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自由放养的宽吻海豚、截短海豚的标志性哨声产生的性别差异
DOI：
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发表时间：
1995
影响因子：
2.3
通讯作者：
Michael D. Scott. A. Blair
中科院分区：
文献类型：
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作者：
L. Sayigh;Peter L. Tyack;Michael D. Scott. A. Blair
42个自由放养的瓶鼻海豚小牛的签名哨声进行了比较，他们的母亲。人类通过观察光谱图来判断它们的相似性。有一个性别差异的倾向，小牛产生类似或不同的哨声从他们的母亲;大多数女性小牛产生的哨声是不同的，从他们的母亲，而男性小牛更有可能产生哨声是类似于他们的母亲。由于母系相关的女性协会在一起，并使用签名哨声建立和/或保持与他们的小牛接触，可能有一个选择性的压力，女性生产的哨声是不同于他们的母亲。在雄性中，控制哨声发育的限制因素可能较少，结果是一些雄性发出的哨声与它们母亲的哨声相似，而另一些则不然。
Signature whistles of 42 free-ranging bottle-nose dophin calves were compared to those of their mothers. Humans judged their similarity by inspection of spectrograms. There was a sex difference in the tendency of calves to produce whistles similar to or different from those of their mothers; most female calves produced whistles that were different from those of their mothers, whereas male calves were more likely to produce whistles that were similar to those of their mothers. Because matrilineally related females associate together and use signature whistles to establish and/or maintain contact with their calves, there may be a selective pressure for females to produce whistles that are distinct from those of their mothers. There may be fewer constraints governing whistle development in males, with the result that some males produce whistles similar to those of their mothers and others do not.