CAREER: Evolution and Function of Complex Signaling in the Wolf Spider Genus Schizocosa

职业：裂腹狼蛛属复杂信号的进化和功能

• 批准号: 0643179
• 负责人: Eileen Hebets
• 金额: $ 68.04万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-04-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0643179&HistoricalAwards=false
• 关键词: CAREER; Evolution; Function; Complex; Signaling

Animals can use several sensory modalities to communicate and recent research highlights the prevalence of complex signaling in animal displays (e.g. the combination of more than one signal often across multiple sensory modalities). Several hypotheses exist regarding the evolution and function of complex signaling including hypotheses relating to (a) the information content or message(s) conveyed, (b) the efficacy with which a signal(s) travels through the environment and is received and/or processed by a receiver, and (c) the potential for one signal to alter either the production, reception, or processing of a second signal. This project is aimed at understanding the evolution and function of complex signaling in the wolf spider genus Schizocosa. Within Schizocosa, multimodal courtship signaling (visual plus seismic) has evolved independently multiple times. This project examines the role of signal efficacy, signal content, and the potential interdependence of the two on complex signal function across 11 populations of Schizocosa encompassing 7 species and uses both field and laboratory based data collection and experimentation. Results from this study will not only provide foundational information regarding selection pressures influencing the evolution of complex signaling, but they will also likely provide insights into the details of modality-specific sensory perception and processing, neuronal interactions between modalities, and the influence of multimodal signals on signal detection/discrimination and learning and memory.In addition to providing innumerable research opportunities for undergraduate and graduate students, this research will be incorporated into a youth science camp during the University of Nebraska's Big Red Week. Scientists involved in the project will help increase the public's scientific awareness by leading nighttime spider hunts with rural youth groups in the Midwest and with church youth groups and Girl Scout Troops across the south. This project will also contribute greatly to the invertebrate collection at the University of Nebraska State Museum.

动物可以使用多种感觉方式进行交流，最近的研究强调了动物展示中复杂信号传导的普遍性（例如，通常跨多种感觉方式的多个信号的组合）。关于复杂信令的演变和功能，存在多种假设，包括与以下方面相关的假设：(a) 所传达的信息内容或消息；(b) 信号在环境中传播并被接收器接收和/或处理的功效；以及 (c) 一个信号改变第二个信号的产生、接收或处理的可能性。该项目旨在了解狼蛛属 Schizocosa 中复杂信号的进化和功能。在裂殖体中，多模式求偶信号（视觉加地震）已经独立进化了多次。该项目研究了信号功效、信号内容的作用，以及两者对 7 个物种的 11 个裂殖种群复杂信号功能的潜在相互依赖性，并使用基于现场和实验室的数据收集和实验。这项研究的结果不仅将提供有关影响复杂信号演化的选择压力的基础信息，而且还可能提供对特定模态的感觉感知和处理、模态之间的神经元相互作用以及多模态信号对信号检测/辨别以及学习和记忆的影响的细节的见解。除了为本科生和研究生提供无数的研究机会外，这项研究还将被纳入青年科学营 在内布拉斯加大学的大红色周期间。参与该项目的科学家将与中西部的农村青年团体以及南部的教会青年团体和女童子军一起领导夜间蜘蛛狩猎活动，帮助提高公众的科学意识。该项目也将为内布拉斯加大学州立博物馆的无脊椎动物收藏做出巨大贡献。