Evolutionary and Allometric Insights into Anuran Auditory Sensitivity and Morphology
Evolutionary and Allometric Insights into Anuran Auditory Sensitivity and Morphology
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DOI：
10.1159/000521309
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发表时间：
2021-12
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影响因子：
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通讯作者：
Logan S. James;Ryan C. Taylor;K. Hunter;M. Ryan
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作者：
Logan S. James;Ryan C. Taylor;K. Hunter;M. Ryan
随着物种随着进化时间的推移而变化，构成行为系统的神经和形态结构通常保持协调。这对通信系统尤其重要，在通信系统中，这些结构必须在发送者和接收者之间以及发送者和接收者之间保持协调，才能成功地传递信息。无尾两栖动物(青蛙)的声学交流提供了一个很好的系统来询问这种协调是何时以及如何保持的，并允许研究人员将异速生长效应与独立的相关进化分开。无尾两栖动物是发声脊椎动物中最特殊的群体之一，雌性动物通常依靠发声来定位雄性动物进行繁殖。在这里，我们汇编和比较了81种无尾两栖动物的听觉形态、听力敏感度和叫声优势频率的各个方面的数据。我们发现，对于所有测量的特征，身体大小的强健、系统发育独立的比例效应。此外，在考虑了身体大小后，我们发现了初步证据，即形态进化超越异速生长可以与听力敏感度和主导频率相关。这些数据提供了有关身体大小对通信系统施加限制的基本结果，并促使进一步收集和分析各种无尾两栖动物物种的数据。
As species change through evolutionary time, the neurological and morphological structures that underlie behavioral systems typically remain coordinated. This is especially important for communication systems, in which these structures must remain coordinated both within and between senders and receivers for successful information transfer. The acoustic communication of anurans (“frogs”) offers an excellent system to ask when and how such coordination is maintained, and to allow researchers to dissociate allometric effects from independent correlated evolution. Anurans constitute one of the most speciose groups of vocalizing vertebrates, and females typically rely on vocalizations to localize males for reproduction. Here, we compile and compare data on various aspects of auditory morphology, hearing sensitivity, and call-dominant frequency across 81 species of anurans. We find robust, phylogenetically independent scaling effects of body size for all features measured. Furthermore, after accounting for body size, we find preliminary evidence that morphological evolution beyond allometry can correlate with hearing sensitivity and dominant frequency. These data provide foundational results regarding constraints imposed by body size on communication systems and motivate further data collection and analysis using comparative approaches across the numerous anuran species.