Dispersal and Diving Behavior of Weddell Seals Determined By Satellite Telemetry

通过卫星遥测确定威德尔海豹的扩散和潜水行为

• 批准号: 8816567
• 负责人: James Testa
• 金额: $ 31.4万
• 依托单位: University of Alaska Fairbanks Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-07-01 至 1992-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8816567&HistoricalAwards=false
• 关键词: Dispersal; Diving; Behavior; Weddell; Seals

Most of the knowledge about the behavior, ecology and population dynamics of Weddell seals (Leptonychotes weddellii) comes from research conducted in the austral spring and summer. This study addresses the overwinter movements and diving behavior of adult seals near McMurdo Sound, Antarctica. The project will rely on satellite-linked time-depth recorders attached to the seals, giving periodic location and summaries of dive durations and depths from seals that haul out on ice or beaches. The habitual return by the seals offers the opportunity to recover the satellite time-depth recorders and a twenty-year population study provides the population background for the study. This will result in a better understanding of age related differences in important behavioral traits that may explain demographic features and selective pressure on the life history of Weddell seals and by extension, that of other large mammals.

大部分关于行为、生态和种群的知识 威德尔海豹（Leptonychotes weddellii）的动力学来自研究 在南方的春天和夏天进行。 这项研究涉及的 麦克默多附近成年海豹的越冬运动和潜水行为 南极洲的声音。 该项目将依靠卫星连接的时间深度 记录器附在密封件上，提供定期位置和摘要 潜水的持续时间和深度。 海豹的习惯性回归提供了恢复 卫星时间深度记录器和一项为期20年的人口研究 为研究提供了人口背景。 这将导致 更好地理解与年龄相关的重要行为差异 可以解释人口特征和选择压力的特征， 威德尔海豹的生活史以及其他大型海豹的生活史 哺乳动物