DISSERTATION RESEARCH: Function of Multiple Signals in Avian Vocal Communication

论文研究：多种信号在鸟类声音交流中的作用

• 批准号: 0104973
• 负责人: Stephen Nowicki
• 金额: $ 0.97万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-05-01 至 2003-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0104973&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Function; Multiple; Signals

The function of multiple signals in avian vocal communicationStephen NowickiMartin D. BeebeeThe puzzling occurrence of highly conspicuous traits in the males of many species of animals is thought to be explained by the fact that these traits act as signals to potential mates, indicating something about phenotypic or genotypic quality. This apparent resolution, however, does not easily explain cases in which individuals exhibit more than one conspicuous trait. For example, many songbirds use a combination of bright coloration and complex vocal displays in courtship, or multiple kinds of courtship vocalizations. If an individual trait can act as an indicator of male quality, what is the added function, if any, of possessing two or more such traits? The goal of this project is to study the function of multiple vocal traits in the yellow warbler (Dendroica petechia), and test a hypothesis for how different traits of an individual might function as signals. As with several groups of North American and European songbirds, yellow warblers have two distinct modes of singing: one relatively simple and one more complex. Results from previous work suggest that these singing modes are specialized for communicating different messages to males and females. This hypothesis will be evaluated using a combination of field and laboratory studies to examine three important aspects of signal function: how the singing modes are used by males, what kinds of information the singing modes convey, and how males and females respond to the different singing modes.

多种信号在鸟类声音交流中的作用.蜜蜂在许多动物的雄性身上都有一些令人费解的显著特征，人们认为这可以用以下事实来解释：这些特征是潜在配偶的信号，表明了表型或基因型的品质。然而，这种明显的分辨率并不容易解释个体表现出一种以上显著特征的情况。例如，许多鸣禽在求偶时使用明亮的颜色和复杂的声音显示，或多种求偶发声。如果一个个体的特征可以作为男性品质的指标，那么拥有两个或更多这样的特征的附加功能是什么？该项目的目标是研究黄莺（Dendroica petechia）的多种声音特征的功能，并测试一个假设，即个体的不同特征如何作为信号发挥作用。与北美和欧洲的几个鸣禽群体一样，黄莺有两种不同的鸣叫模式：一种相对简单，一种更复杂。从以前的工作结果表明，这些唱歌模式是专门为沟通不同的信息，男性和女性。这一假设将使用现场和实验室研究相结合的信号功能的三个重要方面进行评估：如何使用的歌唱模式的男性，什么样的信息的歌唱模式传达，以及男性和女性如何响应不同的歌唱模式。