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.

在这项美国 - 巴西加拿大论文增强研究奖下，在迈阿密大学的威廉·A·塞西（William A. 他们将研究Muscovy Ducks的滥交和精子竞赛。 该项目具有三个目标：1）通过行为观察表征男性女性的缔合模式，并通过DNA分析估算伴侣的数量； 2）探索为什么通过成本效益分析，一种比较方法和假设检验来探讨该物种在水禽中一夫一妻制的例外； 3）测试被动精子损失模型，这是精子竞争的拟议机制。阐明滥交的适应性意义和预测精子竞争结果的能力将使人们更好地了解肌肉鸭生殖策略以及水禽中的交配系统演变。 现场研究将在巴西进行，圈养研究将在加拿大进行。 该项目将为研究，教学和野生动植物管理和保护提供好处。