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驼背幼在养场上的声学行为:跨年龄的比较和对声乐发育的影响
Julia M Zeh1, Dana L Adcock1, Valeria Perez-Marrufo1
1Department of Biology, Syracuse University, Syracuse, New York, United States of America.
PloS one
|May 29, 2024
概括
在养场上的驼背幼在声学上并不神秘,并且产生与成年人相似的声音,其中有一些差异表明声音发育. 这项研究提供了关于鱼声声本体的见解.
科学领域:
- 海洋生物学 海洋生物学
- 生物声学是一种生物声学.
- 动物行为 动物行为
背景情况:
- 驼背 (Megaptera novaeangliae) 是声乐学习者,但它们的早期声乐发育仍然不太清楚.
- 有限的研究存在于驼背鱼小鱼在养场上的行为,与繁殖或迁徙阶段不同.
研究的目的:
- 在养场上调查驼背幼的声音行为和发育.
- 为了比较小的发声与同一个环境中的成年驼背的发声.
主要方法:
- 在缅因湾的北大西洋驼背鱼身上使用了吸管附着的声学记录标签.
- 在同时部署的标签中使用相对接收的呼叫水平来分配呼叫者身份.
- 分析了3只小牛和13只成人的发声,重点关注呼叫率,呼叫参数和呼叫类型的使用情况.
主要成果:
- 在养场的驼背幼在声学上是显而易见的,与繁殖场或迁徙路线不同.
- 无论是小牛还是成年人,都会在发作中发出声音,在呼叫间隔和发作持续时间之间存在潜在的差异.
- 牛犊利用成人声乐谱的很大一部分,但与不同的呼叫类型比例不同,并表现出不成熟的呼叫类型,类似于原音节.
结论:
- 在养场上,驼背幼的声音产生与成年人相似,有可观察到的本体遗传变异.
- 研究结果表明,驼背的声音发育与其他声音学习物种有相似之处.
- 这项研究提供了初步的见解,在养场的背景下,驼鱼小牛的声乐本体.
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