CAREER: Factors that Shape the Evolution of Multimodal Signals in the Chesnut-Bellied Flycatcher Monarcha castaneiventris

动物使用不同感觉模式的不同信号集(“多模式信号”)来促进社会互动。例如，大多数鸟类使用独特的声学(歌声)和视觉(彩色羽毛)信号来吸引配偶或保卫领地。最近的研究表明，这些多模式信号在区分和维持物种方面很重要；然而，物种之间信号如此不同的潜在原因仍然知之甚少。这项研究结合了观察、遗传和实验方法，旨在揭示产生信号和物种多样性的过程。在所罗门群岛，栗腹捕蝇者Monarcha Castaneiventris的种群在其整个范围内的歌声和羽毛颜色都表现出戏剧性的变化。这项工作将测试岛屿群在森林栖息地、社会结构和羽毛降解菌丰富度方面是否存在差异，以及这种差异是否与观察到的捕蝇者种群在歌声和颜色上的差异有关。这项工作的科学部分将与教育和保护联系在一起，方法是开发一门实地课程，让本科生与所罗门群岛的生物学家合作，并实施旨在保护所罗门群岛濒危栖息地的外联方案。总而言之，该研究计划将提供对自然界中形成生物多样性的因素的独特理解，这将被用作保护推广的平台，并培训所罗门群岛的生物学家和本科生，特别是那些来自生物科学中代表性不足的群体的学生。

Animals use a diverse set of signals of different sensory modes ("multimodal signals") to facilitate social interactions. For instance, most birds use unique acoustic (song) and visual (colorful plumage) signals in attracting mates or defending territories. Recent studies indicate that these multimodal signals are important in distinguishing and maintaining species; however, the underlying reasons why signals are so diverse among species remain little understood. Using a combination of observational, genetic and experimental approaches, this research aims to uncover the processes that generate signal and species diversity. Populations of the chestnut-bellied flycatcher Monarcha castaneiventris show dramatic variation in song and plumage color throughout its range in the Solomon Islands. The work will test if island groups differ in forest habitat, social structure and abundances of feather-degrading bacteria, and whether this variation is linked to the observed differences in song and color among the flycatcher populations. The scientific component of this work will be linked to education and conservation by the development of a field course that will partner undergraduate students with Solomon Island biologists, and the implementation of outreach programs aimed at conserving the endangered habitats of the Solomon Islands. In sum, the research program will provide a unique understanding of the factors that shape biodiversity in nature, which will be used as a platform for conservation outreach, and to train Solomon Island biologists and undergraduate students, especially those from groups underrepresented in the biological sciences.