DISSERTATION RESEARCH: The Role of Acoustic Signals in Chorus Formation in Treefrogs

论文研究：声学信号在树蛙合唱团形成中的作用

• 批准号: 0508433
• 负责人: H. Carl Gerhardt
• 金额: $ 1.2万
• 依托单位: University of Missouri-Columbia
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-04-01 至 2007-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0508433&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Role; Acoustic; Signals

Acoustic signals are used by many kinds of animals to communicate between members of the same and opposite gender. This research focuses on how acoustic signals used for mate attraction might influence the aggregation and spacing of calling males. The treefrog system is an ideal model system because only males produce long-range sounds, which elicit phonotaxis in females and phonotaxis and vocal responses in other males. Furthermore, much knowledge is already available about the evolutionary significance of this communication and the underlying auditory mechanisms. The experiments will test the idea that calling by a small group of males (simulated by playbacks of recorded calls from speakers) can influence the onset of chorusing and the location of choruses, which are large groups of calling males. Further tests will assess the effects of signal quality on the location of aggregations of calling males within the general chorusing area. The results bear on general hypotheses about the causes and consequences of aggregated displaying, which is a common phenomenon in animals. For example, if playbacks accelerate the onset of chorusing and attractive (to females) rather than unattractive calls influence the location of aggregations within choruses, the hypothesis that males with especially attractive signals are focal points for chorus formation will be supported. If chorus onset is not influenced by playbacks and unattractive and attractive signals are equivalent in influencing location, the hypothesis that favorable locations for attracting females are focal points for chorus formation. These questions will be addressed in three different species in order to generalize the results and to learn if different environmental factors might also influence chorus formation. Broader Impacts: This research will serve to increase knowledge of animal communication and to further the graduate education of a Hispanic student whose undergraduate education occurred in Puerto Rico. His undergraduate training lacked an opportunity for designing and conducting experiments that address broad theoretically informed research questions. Several undergraduates some of will be from under represented groups will assist the graduate student.

声音信号被许多动物用来在同性和异性之间进行交流。这项研究的重点是用于配偶吸引的声音信号如何影响呼叫雄性的聚集和间隔。树蛙系统是一个理想的模型系统，因为只有雄性才能发出长距离的声音，这引起雌性的趋声性和其他雄性的趋声性和声音反应。此外，关于这种交流的进化意义和潜在的听觉机制，已经有了很多知识。实验将测试的想法，即呼叫一小群男性（模拟从扬声器录制的呼叫回放）可以影响合唱的开始和合唱的位置，这是一个大的呼叫男性群体。进一步的测试将评估信号质量对一般合唱区内的呼叫雄性聚集的位置的影响。结果承担的原因和后果的一般假设聚集显示，这是一种常见的现象，在动物。例如，如果回放加速发病合唱和有吸引力的（女性），而不是没有吸引力的电话影响合唱团内的聚集的位置，假设男性特别有吸引力的信号是合唱形成的焦点将得到支持。如果合唱开始不受回放和不吸引人的和有吸引力的信号是相同的影响位置，假设吸引女性的有利位置是合唱形成的焦点。这些问题将在三个不同的物种中得到解决，以概括结果，并了解不同的环境因素是否也会影响合唱形成。更广泛的影响：这项研究将有助于增加动物交流的知识，并进一步研究生教育的西班牙裔学生的本科教育发生在波多黎各。他的本科教育缺乏设计和进行实验的机会，解决广泛的理论研究问题。 几个本科生，其中一些将来自代表性不足的团体将协助研究生。