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纪的昆虫可以听到同类超声波和蝙蝠回声定位

Charlie Woodrow¹, Emine Celiker², Fernando Montealegre-Z³

¹University of Lincoln, School of Life and Environmental Sciences, Joseph Banks Laboratories, Green Lane, Lincoln LN6 7DL, UK; Uppsala University, Department of Ecology and Genetics, Evolutionary Biology Centre, Norbyvägen 18 D, 752 36, Uppsala, Sweden.

Current biology : CB

|November 14, 2023

概括

卡蒂迪德耳朵,具有独特的哺乳动物样结构,在伊纪时代进化. 化石分析揭示了他们复杂的听力调整到通信和捕食者检测,展示了早期的超声波灵敏度.

科学领域:

进化生物学是进化的生物学.
生物声学是一种生物声学.
古生物学的古生物学

背景情况:

听力已经多次独立进化,昆虫的耳朵,如虫 (Orthoptera: Tettigoniidae) 的耳朵,在沟通和捕食者检测中发挥着关键作用.
猫头的耳朵拥有独特的外耳,中耳和内耳组件,类似于哺乳动物的耳朵,前腿的耳通过耳和耳道 (EC) 接收声音.
虽然虫耳朵的生物物理和功能越来越被理解,但它们的进化起源仍然不清楚.

研究的目的:

为了研究进化历史和独特的katydid耳朵结构的出现.
为了确定一个古老的虫物种的声学通信频率和听力能力.

主要方法:

微计算机断层扫描 (μCT) 扫描被用来重建波罗的海珀 (约. 4400万年前的历史).
化石翅膀的数值和理论建模被用来分析声学特性.
进行了耳朵几何学的生物物理建模,以评估其调和和灵敏度.

主要成果:

这项研究确定了化石类物种的峰值通信频率为31.62 (± 2.27) kHz.
重建的耳朵被发现是生物物理调整到这种通信频率,并能够检测更高频率的超声波 (>80 kHz).
这些发现表明,虫耳朵的先进特征,包括宽带超声波灵敏度,早在公元时代就存在.

结论:

独一无二的,复杂的耳朵结构的katydids,与生物物理性质类似于哺乳动物的耳朵,出现了在纪时代.
化石证据表明,这些昆虫在数百万年前拥有复杂的听觉能力,可以进行通信和捕食者检测.
这项研究提供了关于昆虫听觉系统的早期演变及其生态作用的关键见解.

关键词:

在军备竞赛中.蝙蝠蝙蝠蝙蝠蝙蝠是一个生物声学是一种生物声学.偷听偷听偷听偷听偷听超声定位的回声定位有限元素分析的研究.化石化石的化石是什么听到听到听到听到听到听到听到古代昆虫学的古生物学.捕食掠食掠食掠食

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