Ecuador and Galapagos Island Research: The Evolution of Cooperative Breeding in Tropical Raptors

厄瓜多尔和加拉帕戈斯群岛研究：热带猛禽合作繁殖的演变

• 批准号: 8901284
• 负责人: John Faaborg
• 金额: $ 2万
• 依托单位: University of Missouri-Columbia
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-06-01 至 1991-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8901284&HistoricalAwards=false
• 关键词: Ecuador; Galapagos; Island; Research; Evolution

This award will support collaborative research between Prof. John Faaborg of the University of Missouri and Prof. Tjitte de Vries of the Pontificia Universidad Catolica del Ecuador. The purpose of this collaborative work is to continue work on the polyandrous breeding groups of the Galapagos Hawk, initiate the first studies of the Harris Hawk in truly tropical conditions, and continue observations on other raptors in Andean study sites. Emphasis will be placed on describing demographic traits of these species and the ecological conditions under which they live. Cooperative breeding systems appear to occur in about 3% of bird species overall. However, stable breeding groups have been documented in only two hawks, the Galapagos Hawk (Buteo galapagoensis) and the Harris' or Bay-winged Hawk (Parabuteo unicinctus). In the former,, these breeding groups are composed of multiple males and a single female that share a single nest; in the latter species, these groups are apparently monogamous pairs with helpers. By providing further information on the nesting habits of tropical raptors, and involving researchers from Ecuador, this research should increase our knowledge of cooperatively breeding raptors and advance the objectives of the Science in Developing Countries Program.

该奖项将支持教授之间的合作研究。 密苏里州大学的约翰·法博格和 厄瓜多尔天主教大学的弗里斯。 的 这项合作的目的是继续开展工作， 一妻多夫的繁殖群体的加拉帕戈斯鹰，启动 在真正的热带环境下对哈里斯鹰的首次研究， 并继续观察安第斯研究中的其他猛禽 网站. 重点将放在描述人口统计特征 这些物种和生态条件下，他们 live. 合作繁殖系统出现在大约3%的鸟类中， 物种整体 然而，稳定的繁殖群体 只有两种鹰，加拉帕戈斯鹰（Buteo 加拉帕戈斯）和哈里斯或湾翼鹰（Parabuteo unicinctus）。 在前者中，这些繁殖群体是由 多只雄鸟和一只雌鸟共用一个巢; 在后者的物种中，这些群体显然是一夫一妻制的。 与助手配对。 通过提供关于 热带猛禽的筑巢习惯， 从厄瓜多尔，这项研究应该增加我们对 合作繁殖猛禽并推进目标 发展中国家科学计划。