Linking Foraging Behaviors to Demography to understand Albatrosses Population Responses to Climate Change

将觅食行为与人口统计学联系起来，以了解信天翁种群对气候变化的反应

• 批准号: 1246407
• 负责人: Stephanie Jenouvrier
• 金额: $ 60.55万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-03-15 至 2018-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1246407&HistoricalAwards=false
• 关键词: Linking; Foraging; Behaviors; Demography; understand

Understanding the ecological consequences - present and future-of climate change is a central question in conservation biology. The goal of this project is to identify the effects of climate change on the Black-Browed Albatross, a seabird breeding in the Southern Ocean. The Black-Browed Albatross exhibits remarkable flight adaptations, using winds as an energy source to glide for long distances. This is the basis of their foraging strategy, by which they obtain food for themselves and their offspring. Climate change, however, is expected to modify wind patterns over the Southern Ocean. This project will analyze the effect of winds on life history traits (foraging behaviors, body conditions and demographic traits), and the effects of these traits on populations. New demographic models will provide the link between foraging behavior and the physical environment, and evaluate the persistence of this population in the face of climate change.Understanding and predicting population responses to climate change is important because the world?s climate will continue to change throughout the 21st century and beyond. To help guide conservation strategies and policy decisions in the face of climate change, reliable assessments of population extinction risks are urgently needed. The Black-Browed Albatross is considered endangered by the International Union for Conservation of Nature due to recent drastic reductions in its population size. This project will improve our understanding of the mechanisms by which climate affects the life history and populations of Black-Browed Albatross to improve prediction of extinction risks under future climate change.

了解气候变化的当前和未来的生态后果是保护生物学的核心问题。该项目的目标是确定气候变化对黑眉信天翁（一种在南大洋繁殖的海鸟）的影响。黑眉信天翁表现出非凡的飞行适应能力，利用风作为能源来长距离滑翔。 这是它们觅食策略的基础，它们通过这种策略为自己和后代获取食物。然而，气候变化预计将改变南大洋的风型。 该项目将分析风对生活史特征（觅食行为、身体状况和人口特征）的影响，以及这些特征对种群的影响。 新的人口模型将提供觅食行为与自然环境之间的联系，并评估该种群在气候变化面前的持久性。了解和预测种群对气候变化的反应非常重要，因为世界气候在整个 21 世纪及以后将继续变化。为了帮助指导应对气候变化的保护战略和政策决策，迫切需要对人口灭绝风险进行可靠的评估。由于黑眉信天翁种群数量最近急剧减少，国际自然保护联盟将其视为濒危物种。该项目将增进我们对气候影响黑眉信天翁生活史和种群机制的理解，以提高对未来气候变化下灭绝风险的预测。