DISSERTATION RESEARCH: Understanding Coordinated Display in a Lek Breeding Bird: Function, Maintenance and Fitness

论文研究：了解 Lek 种鸟的协调展示：功能、维护和健康

• 批准号: 0508189
• 负责人: John Blake
• 金额: $ 1.1万
• 依托单位: University of Missouri-Saint Louis
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-04-01 至 2007-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0508189&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Understanding; Coordinated; Display

Lek mating systems, in which males aggregate and display to attract females, are of great interest to ecologists. In particular, lek mating systems attract the attention of scientists because of the pronounced reproductive skews, in which only a few males in the population are reproductively successful, while most are not. The existence of such reproductive skews calls into question the stability of lekking and cooperative display, but remains an unresolved phenomenon in behavioral ecology. The primary goal of the proposed research is to elucidate how reproductive strategies of male manakins (Aves: Pipridae) are maintained through time. This goal will be addressed through an intensive, three-year study of the reproductive and social dynamics of a lek-breeding manakin, Pipra filicauda, at a lowland rainforest site in Ecuador. The goals will be achieved by behavioral observations of males at leks to determine the identity of males present and which males cooperate in reproductive displays. In addition, nests of female manakins will be located to obtain blood samples from the chicks to determine paternity (i.e., which male sired the offspring). Information on male relatedness at leks and known paternity of chicks provide evidence of direct and indirect reproductive benefits to males for joining leks. Broader Impacts This study will provide an educational experience for a graduate student and several undergraduate assistants that involve field and laboratory techniques. The project builds and strengthens the international collaboration of the two host institutions, Universidad San Francisco de Quito (USFQ) and the University of Missouri-St. Louis (UMSL). Moreover, this project enables host institutions to build interactive learning environments through the integration and training of their undergraduate students in applicable research techniques. The project also aids proactive conservation of the Ecuadorian lowlands by providing basic biological information to USFQ and the biological station Tiputini. Ultimately, this project fills gaps in scientific knowledge while building international collaboration and promoting conservation of Ecuadorian ecosystems.

Lek交配系统，即雄性聚集并展示以吸引雌性的系统，引起了生态学家的极大兴趣。特别是，LEK交配系统吸引了科学家的注意，因为明显的生殖失衡，在种群中只有少数雄性成功繁殖，而大多数不是。这种生殖偏斜的存在令人质疑逗乐和合作展示的稳定性，但在行为生态学中仍是一个尚未解决的现象。这项拟议的研究的主要目标是阐明雄性山毛鸟(鸟类：山毛鸡科)的生殖策略是如何随着时间的推移而保持的。这一目标将通过一项为期三年的密集研究来实现，研究对象是厄瓜多尔一处低地热带雨林点上繁殖的麻雀Pipra filicauda的生殖和社会动态。这些目标将通过对雄性进行行为观察来实现，以确定在场雄性的身份以及哪些雄性在生殖展示中合作。此外，还将确定雌性假人窝的位置，以从雏鸟身上获取血液样本，以确定父子关系(即哪一只雄鸟是后代的父亲)。关于Leks的雄性亲缘关系和已知的雏鸟父子关系的信息提供了证据，证明加入Leks对雄性有直接和间接的生殖益处。更广泛的影响这项研究将为一名研究生和几名涉及现场和实验室技术的本科生助理提供教育经验。该项目建立并加强了两个主办机构--旧金山基多大学(USFQ)和密苏里大学-圣彼得堡分校之间的国际合作。路易(UMSL)。此外，该项目使主办机构能够通过整合和培训其本科生在适用的研究技术方面建立互动学习环境。该项目还通过向USFQ和Tiputini生物站提供基本生物信息，帮助积极主动地保护厄瓜多尔低地。最终，该项目填补了科学知识的空白，同时建立了国际合作，促进了厄瓜多尔生态系统的保护。