Significance and Consequences of Avian Vocal Development

Kroodsma博士将进行四项相互关联的声乐研究， 雀形目鸟类的发展及其后果（栖息） 鸟 这四项发展研究对于 了解神经控制，进化， 声音信号在鸟类中的作用 1. 与真正的鸣禽（鸣禽）相比， 缺乏模仿声音信号的能力。 歌曲比较 （suboscine）flycatchers和oscine songbirds的发展是 这是理解 不同的歌曲发展模式， 这两种动物对声音信号的神经控制存在差异， 雀形目鸟类的亚目。 2. 对towhees歌曲发展的实验室实验将 揭示了相互作用的鸟类发展歌声的过程 与那些在声学上相似或不同的 环境 3. 莺莺在不同的环境中使用不同的歌声。 研究它们的鸣唱系统将有助于理解 发声发展与地理变异的关系 在歌曲中，声学结构上的选择力 信号，雄性和雌性对这些歌曲的反应， 林莺是如何使用这个极其复杂的交流系统的 4. 一项对鹪鹩发声行为的研究将探讨 歌曲的发展和文化的进化， 两个鸣禽种群之间的隔离 居住。 为了进行这项研究，Kroodsma博士依赖于以下几个方面的结合： 现场和实验室研究，并选择最合适的 每一组问题的物种。 结果应该会产生 对歌曲发展与 以及鸟类发声行为的功能。

Dr. Kroodsma will carry out four interrelated studies of vocal development and its consequences among passerine (perching) birds. These four developmental studies are important for understanding the neural control, the evolution, and the functions of acoustic signals among birds. 1. In contrast to true (oscine) songbirds, flycatchers seem to lack the ability to imitate vocal signals. Comparison of song development by (suboscine) flycatchers and by oscine songbirds is a critical first step to understanding the consequences of strikingly different modes of song development and the possible differences in the neural control of vocal signals in these two suborders of passerine birds. 2. Laboratory experiments on song development with towhees will reveal the processes by which interacting birds develop songs that are either similar or dissimilar to those in their acoustic environment. 3. Paruline warblers use different songs in different contexts. Studies of their song systems will help in understanding the relationship between vocal development and geographic variation in songs, the selective forces on the structure of acoustic signals, the responses of males and females to these songs, and how warblers use this remarkably complex communication system. 4. A study of wren vocal behavior will examine the possible role of song development and cultural evolution in maintaining genetic isolation between two song populations in an area that they both inhabit. To do this research, Dr. Kroodsma relies on a combination of field and laboratory studies, and chooses the most suitable species for each set of questions. The results should yield important insights into the relationship between song development and the functions of vocal behaviors of birds.