隐藏的变化在音量测量缩放之间的声音生产和感知在anurans
Bruna Maria1, João F R Tonini2, Raoni Rebouças1,3,4
1Laboratório de História Natural de Anfíbios Brasileiros, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil.
PeerJ
|November 9, 2023
概括
青呼叫频率与身体和耳膜大小有关. 这些特征的进化转变可能是由环境噪音和性选择驱动的,允许青适应它们的呼叫.
科学领域:
- 动物学 动物学
- 生物声学是一种生物声学.
- 进化生物学 进化生物学
背景情况:
- 阿努拉人 (青和) 主要使用通过广告呼叫进行社交互动的听觉通信.
- 人对声音的感知依赖于一个外部的耳膜,这对社会行为至关重要.
- 身体大小和耳膜大小是影响人类声学交流的关键物理特征.
研究的目的:
- 为了研究身体尺寸和耳膜尺寸对anuran呼叫频率在它们的进化历史上的影响.
- 了解塑造anuran发音的全度关系和进化约束.
主要方法:
- 从文学和博物馆收藏中收集了735种anuran物种的鼻孔孔长度, tympanic膜直径和主导呼叫频率的数据.
- 将这些特征映射到anuran的基因组上,以分析进化模式.
- 测试了各种多样化的模型来解释特征进化.
主要成果:
- 身体尺寸,耳膜尺寸和呼叫频率之间存在强烈的全度约束.
- 确定了这五种进化转变的例子. 在这个全度关系中.
- 这些变化与背景噪音和潜在的性选择压力等环境因素相关.
结论:
- 阿努伦的呼叫频率受到身体和耳大小的显著限制,但进化适应允许"全米逃生".
- 环境压力 (例如,背景噪音) 和性选择 (例如,女性偏好某些耳大小) 可以推动呼叫特征的这些进化转变.
- 了解这些因素,可以深入了解anuran人的身体特征,环境和沟通进化之间的相互作用.
相关概念视频
Perception of Sound Waves
4.5K
The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
4.5K
Testing a Claim about Mean: Unknown Population SD
3.5K
A complete procedure of testing a hypothesis about a population mean when the population standard deviation is unknown is explained here.
Estimating a population mean requires the samples to be approximately normally distributed. The data should be collected from the randomly selected samples having no sampling bias. There is no specific requirement for sample size. But if the sample size is less than 30, and we don't know the population standard deviation, a different approach is used;...
Estimating a population mean requires the samples to be approximately normally distributed. The data should be collected from the randomly selected samples having no sampling bias. There is no specific requirement for sample size. But if the sample size is less than 30, and we don't know the population standard deviation, a different approach is used;...
3.5K
The Cochlea
45.1K
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
45.1K
Sound Intensity Level
4.2K
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
4.2K
Perceiving Loudness, Pitch, and Location
218
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
218
Echo
515
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
515


