DISSERTATION RESEARCH: Signal Evolution in Heterospecific Contact Zones and Selective Bases for Reproductive Character Displacement in Pseudacris Frogs

论文研究：异种接触区的信号演化和拟青蛙生殖特征置换的选择性碱基

• 批准号: 0309309
• 负责人: David Cannatella
• 金额: $ 1.2万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0309309&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Signal; Evolution; Heterospecific

North American chorus frogs (Pseudacris) represent an excellent group to study speciation, and particularly how reproductive behaviors of populations differ in areas where species come into contact with one another. We will study how the calls of chorus frog species evolve in areas where three species co-occur. Differences in reproductive behavior (calling patterns) will be quantified in areas of interspecific contact. Laboratory experiments will determine the consequences of hybridization among species, and field experiments will be initiated to determine calling preferences of female frogs as evidence for reinforcement of species discrimination. The proposed research combines theory and techniques from several subdisciplines in ecology and evolutionary biology, and this combination should yield novel insights and results into role that reproductive isolation plays in speciation.

北美合唱青蛙（伪ac）代表了研究物种形成的出色群体，尤其是种群的生殖行为在物种彼此接触的地区有何不同。我们将研究合唱青蛙物种的呼唤如何在三个物种共发生的地区演变。生殖行为（呼叫模式）的差异将在种间接触区域中进行量化。实验室实验将确定物种之间杂交的后果，并将启动现场实验，以确定女性青蛙的呼吁偏好，以此作为增强物种歧视的证据。拟议的研究结合了来自生态学和进化生物学几个子学科的理论和技术，这种组合应产生新颖的见解和结果，使生殖隔离在物种中起作用。