新生小鼠的超声波呼叫率的选择会影响成年人的低频,但不是超声波的发声
Raffaela Lesch1, Andrea Orozco2, Margaret Shilling2
1Department of Behavioral and Cognitive Biology, University of Vienna, Vienna, Austria.
Ethology : formerly Zeitschrift fur Tierpsychologie
|July 19, 2024
概括
在幼中,针对超声波发声 (USV) 的选择性繁殖令人惊地改变了成年人的低频呼声,而不是USV. 这表明它对声乐生产机制产生了类效应.
科学领域:
- 动物行为 动物行为
- 进化生物学 进化生物学
- 生物声学是一种生物声学.
背景情况:
- 选择性育种是研究基因对行为影响的强大工具.
- 在母体分离期间的动物超声波发声 (USVs) 是研究早期沟通和应激反应的模型.
- 了解发声的遗传基础可以揭示对声控机制的洞察力.
研究的目的:
- 为了研究选择性繁殖对幼犬超声波发声 (USV) 率对成年声乐行为的长期影响.
- 为了确定幼USV的选择是否会对成年USV产量或其他声学变量产生类影响.
- 为了探索体重与声音特征之间的关系,在选定的动物线.
主要方法:
- 一个动物模型在57代的时间里被选择性养,以发现母体分离期间USV的高或低率.
- 超声波和低频发声的声学变量在被选中的成年人线的发育阶段之间进行了比较.
- 身体重量和低频电话的基本频率与选择线的关系被分析.
主要成果:
- 与假设相反,为幼犬的USV率进行选择性育种并没有显著改变成年USV产量或其他声学变量.
- 选择主要影响成人低频 (人类可听) 发音.
- 在低频电话中,人体体重和基本频率之间的预期相关性并未完全观察到,特别是在高线男性中.
结论:
- 对幼犬超声波发声的选择具有类效应,影响成人低频发声,而不是超声波发声.
- 这些发现表明,早期声乐行为选择会影响控制声乐产生的解剖学或神经机制.
- 该研究强调了不同发声类型及其潜在的生产系统之间的复杂遗传相关性.
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