LTREB Renewal Lifetime Fitness Consequences of Reproductive Strategies

LTREB 更新 生殖策略的终生健康后果

• 批准号: 1252656
• 负责人: James Sedinger
• 金额: $ 56.24万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-03-01 至 2019-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1252656&HistoricalAwards=false
• 关键词: LTREB; Renewal; Lifetime; Fitness; Consequences

This project continues a 30-year study of Black Brandt geese on the Tutakoke River in Alaska. To date, 2,000 individuals have been marked and 2,000 previously-marked individuals are monitored annually. The length of the study provides a large sample of Brant that are now over 20 years old, allowing the researchers to examine the consequences of reproduction, senescence, and life-history tradeoffs in a long-lived vertebrate. Data collected over the next five years will explore the new hypothesis that local density, rather than parental investment, influences optimal brood size. The researchers will also pursue a second surprising finding, which is that gosling success likely results from pre-fledging survival rather than from post-fledging effects. The Tutakoke River Brant study provides the principal demographic data used to manage the Black Brandt and other avian species. The researchers work closely with the US Fish and Wildlife Service and the Pacific Flyway to develop effective management plans. They also work closely with Native Alaskan residents of Chevak, Alaska, particularly to involve students from the village in the research project. Graduate and undergraduate students also gain research experience by participation in this research.

该项目延续了对阿拉斯加Tutakoke河上黑勃兰特鹅的30年研究。迄今为止，已对2 000人作了标记，每年对2 000名以前作过标记的人进行监测。这项研究的长度提供了一个20多岁的Brant的大样本，使研究人员能够研究长寿脊椎动物的繁殖，衰老和生活史权衡的后果。在未来五年收集的数据将探讨新的假设，当地的密度，而不是父母的投资，影响最佳育雏大小。研究人员还将追求第二个令人惊讶的发现，即小鹅的成功可能是由于羽翼未丰前的生存，而不是羽翼未丰后的影响。Tutakoke河布兰特研究提供了用于管理黑布兰特和其他鸟类物种的主要人口统计数据。研究人员与美国鱼类和野生动物管理局和太平洋飞行路线密切合作，制定有效的管理计划。他们还与阿拉斯加州切瓦克的阿拉斯加原住民密切合作，特别是让村里的学生参与研究项目。 研究生和本科生也通过参与这项研究获得研究经验。