Winter Foraging Locations Of Southern Ocean Predators In Relation To Stochastic Variation In Sea-Ice Extent

南大洋捕食者冬季觅食地点与海冰范围随机变化的关系

• 批准号: DP0770910
• 负责人: Prof Mark Hindell
• 金额: $ 18.25万
• 依托单位: University of Tasmania
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2007
• 资助国家: 澳大利亚
• 起止时间: 2007-01-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0770910
• 关键词: Winter; Foraging; Locations; Southern; Ocean

Antarctic marine communities are likely to be amongst the first anywhere to show changes due to climate change. A top national priority for Australia is to understand how Antarctic communities will be affected if climate change does occur. As predators reflect changes occurring lower in the food chain, these are an important group to study. This study will be the first to specifically link ice extent with the habitat use of predators, and quantify how this varies over time. Some work already indicates that there have been community level changes in some predators in the Antarctic due to changes in ice extent, so developing tools to predict the nature and magnitude of these changes are needed.

南极海洋群落很可能是最先受到气候变化影响的地区之一。澳大利亚的首要任务是了解如果气候变化真的发生，南极社区将受到怎样的影响。由于捕食者反映了发生在食物链较低位置的变化，这是一个重要的研究群体。这项研究将是第一个明确地将冰的范围与捕食者的栖息地使用联系起来，并量化其随时间的变化。一些工作已经表明，由于冰层范围的变化，南极一些捕食者的群落水平发生了变化，因此需要开发工具来预测这些变化的性质和幅度。