Synchrony in Population Parameters Among Antarctic Seals

南极海豹种群参数的同步性

• 批准号: 8716073
• 负责人: James Testa
• 金额: $ 6.42万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-07-01 至 1989-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8716073&HistoricalAwards=false
• 关键词: Synchrony; Population; Parameters; Among; Antarctic

There is currently some question as to whether the biological resources of the Antarctic marine ecosystem are divided into stocks that can be managed separately or constitute a single community which is influenced by common events over a large geographic area. In order to address this question, comparable data for populations of the same species collected from different regions over a large time span are needed. Researchers have been monitoring reproductive rates of Weddell seals at several locations in Antarctica, but none has yet attempted to compare the various data sets. Testa proposes to analyze and compare existing data on the annual reproductive rates of Weddell seals from McMurdo Station (U.S.) with those from Davis (Australia) and Signy Island (British) Stations to determine whether large-scale factors influence reproductive success in distinct populations from widely separated geographic locations. The work will be conducted in collaboration with members of the British Antarctic Survey and the Australian National Antarctic Research Expedition. Data also exists on food habits of Weddell seals at these locations, and will be utilized for interpretation of data sets. Results will provide a foundation for better management of Antarctic marine biological resources, as well as an opportunity for international collaboration and dissemination of information. Results should also further our understanding of life-history evolution and population ecology of large mammals.

目前还存在一些问题， 南极海洋生态系统的资源分为种群 可以单独管理，也可以组成一个社区， 受到大范围地理区域内共同事件的影响。 为了 为解决这一问题， 从不同地区收集的物种在很长的时间跨度， needed. 研究人员一直在监测 威德尔在南极洲的几个地方海豹，但没有一个已经 试图比较不同的数据集。 Testa建议分析 并将威德尔每年繁殖率的现有数据 来自麦默多站的海豹（美国）戴维斯（Davis）（澳大利亚） 和西尼岛（英国）站，以确定是否大规模 影响不同种群繁殖成功的因素， 分散的地理位置。 这项工作将在 与英国南极调查局和 澳大利亚国家南极研究考察队。 数据也存在 韦德尔海豹在这些地方的饮食习惯， 用于解释数据集。 结果将提供 南极海洋生物资源管理基金会 资源，以及国际合作的机会 和传播信息。 结果还应进一步促进我们的 了解生活史进化和种群生态学 大型哺乳动物