Dissertation Research: Causes and Consequences of Asymmetric Sound Fields

非技术摘要IBN-9701201 PI：Bradbury，Jack; Danzger，Marc UC San Diego 题目：“论文研究：动物交流中不对称声场的原因和后果” 声学介导的配偶选择的研究，包括以前的研究鼠尾草松鸡，都集中在频谱和时间信号组成的作用，交配成功的预测。 利用我们为研究声辐射而开发的一种技术，研究人员发现了另一种几乎可以肯定具有强烈健身后果的声学特征。 去年春天进行的试验数据的初步结果显示，与以前在脊椎动物中观察到的任何声音辐射场都不同，声音辐射场是完全不对称的。 这些结果也有力地表明，雄性鼠尾草松鸡有一个新的和显着的机制来控制这种方向性。 本研究旨在进一步阐明雄性鼠尾草松鸡交配成功背景下的发声辐射和模式操纵机制。 .

Non-technical Abstract IBN-9701201 PI: Bradbury, Jack; Danzger, Marc UC San Diego Title: "Dissertation Research: Causes and consequences of asymmetric sound fields in animal communication" Studies of acoustically mediated mate choice, including previous studies of the sage grouse, have concentrated on the role of spectral and temporal signal composition as predictors of mating success. Using a technique that we developed for the study of acoustic radiation, researchers have identified another acoustic trait that almost certainly has strong fitness consequences. Preliminary results of pilot data taken last spring reveal starkly asymmetric and directional sound radiation fields unlike any previously observed in a vertebrate. These results also strongly suggest that male sage grouse have a novel and remarkable mechanism to control this directionality. The research proposed here is designed to further elucidate the mechanism of sage grouse vocalization radiation and pattern manipulation in the context of male sage grouse mating success. .