Collaborative Research: ORCC: Understanding Organismal Behavioral Responses to Climate Change to Forecast Eco-evolutionary Dynamics of Albatrosses Populations

合作研究：ORCC：了解生物体对气候变化的行为反应以预测信天翁种群的生态进化动态

• 批准号: 2222058
• 负责人: Cassandra Brooks
• 金额: $ 63.24万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-05-01 至 2026-04-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2222058&HistoricalAwards=false
• 关键词: Collaborative; Research; ORCC; Understanding; Organismal

The accelerating pace of global change creates urgency to understand and predict climate impacts on populations to enable decision-making for conservation and resource management. Such a capacity requires a clear understanding of how organisms respond to climate change and whether this response can scale up to the population level and have demographic consequences. This project focuses on two sentinel species, the wandering albatross (Diomedea exulans), and the black-browed albatross (Thalassarche melanophris), living in the Southern Ocean and asks whether adaptation in individual behavior, which is the most proximal response of organisms to climate change, can mitigate population declines. Through a comprehensive examination of the links between climate, individual capacity to acquire resources (i.e., foraging behaviors), and population dynamics, this project will improve our understanding of the pathways through which population resilience may be expected. Also, based on state-of-the-art modeling techniques that will account for adaptive evolution, this project will result in forecasts of population trend and predictions of population persistence in the future. Predictions will then be brought directly to the international bodies involved in conserving these species, seeking to inform ongoing conservation efforts, including the development of Marine Protected Areas. This award will also allow training of the next generation of scientists to work directly with policymakers as engaged scholars. Adaptive changes in foraging effort have a potential to mitigate population declines under climate change. Surprisingly, a large gap remains in our understanding of the links between foraging effort and individual fitness, as well as population dynamics. This project aims to understand and forecast how plasticity and evolutionary adaptation in foraging effort can limit population declines of climate-threatened seabird species through an eco-evo-demographic approach. This project relies on individual-level empirical data on body condition, foraging behaviors, demographic rates, and pedigree collected on two albatross species living in the Southern Ocean: the wandering albatross (Diomedea exulans) and the black-browed albatross (Thalassarche melanophris). This project will first assess the mechanistic linkages between climate change, body condition, foraging effort, individual fitness, and population dynamics. Then, using state-of-the-art eco-evolutionary matrix population models coupled with climatic scenarios, the project will result in forecasts of eco-evolutionary dynamics and future population trends under climate change and adaptive evolution. This award will bring together the fields of climate forecasting and organismal and population ecology to transform our understanding of the relative importance of natural climate variability and predictability for eco-evolutionary dynamics.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

全球变化步伐不断加快，迫切需要了解和预测气候对人口的影响，以便能够为保护和资源管理作出决策。这样的能力需要清楚地了解生物体如何应对气候变化，以及这种反应是否可以扩大到种群水平并产生人口统计学后果。该项目重点关注生活在南大洋的两种前哨信天翁--游荡信天翁(Diomedea Exulans)和黑眉信天翁(Thalassarche Blackophris)，并询问个体行为的适应--这是生物对气候变化最接近的反应--是否可以减缓种群的下降。通过全面检查气候、个体获取资源的能力(即觅食行为)和种群动态之间的联系，该项目将提高我们对种群复原力预期途径的理解。此外，基于最先进的建模技术，将解释适应性进化，该项目将导致预测人口趋势和预测未来人口的持久性。然后，预测将直接提交给参与保护这些物种的国际机构，寻求为正在进行的保护工作提供信息，包括发展海洋保护区。该奖项还将允许培训下一代科学家直接与决策者合作，成为参与其中的学者。觅食努力的适应性变化有可能缓解气候变化下的种群下降。令人惊讶的是，我们对觅食努力和个体健康以及种群动态之间的联系的理解仍然存在很大差距。该项目旨在了解和预测觅食努力中的可塑性和进化适应如何通过生态-进化-人口方法来限制受气候威胁的海鸟物种的数量下降。该项目依赖于对生活在南大洋的两种信天翁收集的关于身体状况、觅食行为、人口率和谱系的个人层面的经验数据：游荡的信天翁(Diomedea Exulans)和黑眉信天翁(Thalassarche Blackophris)。这个项目将首先评估气候变化、身体状况、觅食努力、个体健康和种群动态之间的机械联系。然后，使用最先进的生态进化矩阵人口模型与气候情景相结合，该项目将导致预测气候变化和适应性进化下的生态进化动态和未来人口趋势。这一奖项将汇集气候预测、生物和种群生态学领域，以改变我们对自然气候变异性和可预测性对生态进化动态的相对重要性的理解。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。