LTREB Renewal Lifetime Fitness Consequences of Reproductive Strategies

这个项目继续对阿拉斯加图塔克河上的黑勃兰特鹅进行了30年的研究。迄今为止，已有2000人被标记，每年监测2000名以前被标记的人。这项研究的长度提供了一个大的布兰特样本，现在已经超过20岁了，使研究人员能够检查繁殖，衰老和长寿脊椎动物的生命史权衡的后果。未来五年收集的数据将探索新的假设，即当地密度，而不是亲代投资，影响最优的育雏规模。研究人员还将继续研究第二个令人惊讶的发现，那就是小鹅的成功可能来自雏鸟前的生存，而不是雏鸟后的影响。图塔克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以及太平洋飞行路线密切合作，制定有效的管理计划。他们还与阿拉斯加切瓦克的阿拉斯加土著居民密切合作，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。

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.