Collaborative Research: Mechanisms of Signal Diversity in Communication

合作研究：通信中信号分集的机制

• 批准号: 0818390
• 负责人: Bruce Carlson
• 金额: $ 20.32万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0818390&HistoricalAwards=false
• 关键词: Collaborative; Research; Mechanisms; Signal; Diversity

Carlson, Bruce AIOS-0818390Collaborative Research: Mechanisms of Signal Diversity in Electric Fish Communication In this collaborative project, researchers from Cornell University in Ithaca and Washington University in St. Louis will explore the mechanisms responsible for the large-scale diversification of animal communication signals. The mormyrids are a diverse group of fishes from Africa that communicate using species-specific electric organ discharges (EODs) that are essential for species recognition. However, some species are polymorphic, with different individuals having distinct EOD forms and correspondingly different electric organ morphology. This project will focus on the polymorphic species Paramormyrops kingsleyae as a microcosm of electric signal evolution throughout the mormyrids. The researchers will use a combination of field work, molecular genetic techniques, electrophysiology, and behavioral playback experiments to determine the genetic basis for electric signal diversity in P. kingsleyae, and the importance of this diversity in driving reproductive isolation between populations and adapting different populations to their particular environments. The results of these studies will lead to specific hypotheses about the root causes of electric signal diversification throughout the mormyrids, which the researchers will test using similar techniques across a wide range of species. This research will prove broadly applicable by providing a mechanistic understanding of how animal communication signals diversify, as well as insight into the ultimate causes for this diversification and the resulting consequences for speciation and the evolution of communication behavior. Broader impacts: The project includes an educational outreach program for public school students, which uses electric fish to provide hands-on demonstrations for linking basic concepts in the physical sciences and biology. In addition, the researchers will create an online searchable database of electric signals that researchers, students, and the general public will be able to access. This database will be used to archive and catalogue thousands of EODs collected during more than 20 years of field work in Africa.

卡尔森（Carlson），布鲁斯AIOS-0818390策略研究：该协作项目中电信号多样性的机制，Ithaca的康奈尔大学的研究人员和圣路易斯华盛顿大学的研究人员将探索负责动物传播信号多样化的大规模多样化的机制。摩米利是来自非洲的一组不同的鱼类，使用特定物种的电气器官放电（EOD）进行交流，这对于物种识别至关重要。但是，有些物种是多态性的，不同的个体具有不同的EOD形式，并且相应不同的电器官形态。该项目将集中于多态物种parmormyrops kingsleyae作为整个摩尔米细胞的电信号演化的缩影。研究人员将使用现场工作，分子遗传技术，电生理学和行为播放实验的结合来确定金斯利氏疟原虫的电信号多样性的遗传基础，以及这种多样性在驱动繁殖隔离之间的重要性，并将不同人群之间的繁殖隔离以及将不同的人群适应其特定环境。这些研究的结果将导致有关在整个摩尔米细胞中电信号多样化的根本原因的特定假设，研究人员将使用相似的技术在各种物种上进行测试。这项研究将通过提供对动物传播如何多样化的机械理解，以及对这种多样化的最终原因以及对物种形成和交流行为的演变产生的最终原因的了解，从而广泛地适用。更广泛的影响：该项目包括针对公立学校学生的教育外展计划，该计划使用电气鱼类提供动手演示，以将物理科学和生物学中的基本概念联系起来。此外，研究人员将创建一个可在线搜索的电信号数据库，研究人员，学生和公众将能够访问。该数据库将用于存档和编目在非洲20多年的现场工作中收集的数千个EOD。