U.S.-Brazil/Canada Dissertation Enhancement: Mating System Evolution in Muscovy Ducks

美国-巴西/加拿大论文增强：番鸭交配系统的进化

• 批准号: 0000654
• 负责人: William Searcy
• 金额: $ 1.05万
• 依托单位: University of Miami
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0000654&HistoricalAwards=false
• 关键词: U.S.; Brazil; Canada; Dissertation; Enhancement

Under this US-Brazil-Canada dissertation enhancement research award, Sarah M. Stai, under the sponsorship of William A. Searcy of the University of Miami, will work with Regina H. F. Macedo of the University of Brasilia in Brazil and Frank Rohwer at the Delta Waterfowl and Wetlands Research Station in Portage la Prairie in Canada. They will study the promiscuity and sperm competition in Muscovy ducks. This project has three objectives: 1) to characterize male-female associative patterns through behavioral observations and to estimate the number of mates through DNA analysis; 2) to explore why this species is an exception to the rule of monogamy in waterfowl through cost-benefit analysis, a comparative approach, and hypothesis testing; and 3) to test the passive sperm loss model, a proposed mechanism for sperm competition. The elucidation of the adaptive significance of promiscuity and an ability to predict the outcome of sperm competition will lead to a better understanding of Muscovy duck reproductive strategies and of mating system evolution in waterfowl. The field research will be done in Brazil and the captive research will be done in Canada. This project will provide benefits to research, teaching, and wildlife management and conservation.

根据这项美国-巴西-加拿大论文增强研究奖，莎拉·M·斯塔伊在迈阿密大学威廉·A·瑟西的赞助下，将与巴西巴西利亚大学的雷吉娜·H·F·马塞多和加拿大波蒂奇拉普雷里三角洲水禽和湿地研究站的弗兰克·罗威尔合作。 他们将研究番鸭的乱交和精子竞争。 该项目有三个目标：1）通过行为观察来表征男女联想模式，并通过 DNA 分析来估计交配数量； 2）通过成本效益分析、比较方法和假设检验，探讨为什么该物种是水禽一夫一妻制规则的例外； 3）测试被动精子丢失模型，这是一种拟议的精子竞争机制。阐明杂乱的适应性意义和预测精子竞争结果的能力将有助于更好地理解番鸭繁殖策略和水禽交配系统的进化。 实地研究将在巴西进行，圈养研究将在加拿大进行。 该项目将为研究、教学以及野生动物管理和保护带来好处。