The Role of in situ Productivity, Advection, and Microbial Activity in Organizing Contrasting Benthic Communities at McMurdo Sound Antarctica

南极麦克默多海峡原位生产力、平流和微生物活动在组织对比底栖生物群落中的作用

• 批准号: 8716085
• 负责人: Paul Dayton
• 金额: $ 21.83万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-04-15 至 1990-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8716085&HistoricalAwards=false
• 关键词: Role; situ; Productivity; Advection; Microbial

A fundamental goal of community ecology is to derive an understanding of environmental processes (both biological and physical) which influence the dynamics of populations in a community. In McMurdo Sound, Antarctica, benthic community assemblages have strong east-west and north-south density gradients. These assemblages are apparently related to gradients in primary production. The objective of this research is to explain how productivity gradients are functionally linked to the benthic system. The study will examine the relative importance of in situ production and advection in influencing community structure. The team of investigators will examine benthic microbial and meiofaunal trophic relationships, ecology of protozoans and meiofauna, and in situ benthic production. Studies of the macrofauna will focus on recruitment, growth and survivorship. The physical component will be directed to regional circulation and local current patterns. This integrated approach will provide information on how the physical regime affects the benthic biological community.

社区生态学的基本目标是得出对影响社区人口动态的环境过程（生物学和物理）的理解。 在麦克默多（McMurdo Sound），南极洲的麦克穆尔多（McMurdo Sound）中，底栖世界社区组合具有强大的东西方密度和南北密度梯度。 这些组合显然与初级生产的梯度有关。 这项研究的目的是解释生产力梯度如何在功能上与底栖系统联系起来。 该研究将研究原位生产和对流在影响社区结构中的相对重要性。调查人员团队将检查底栖微生物和Meiofaunal营养关系，原生动物和梅奥福纳纳的生态学以及原位底栖生产。对大型群岛的研究将集中在招募，增长和生存方面。 物理组件将针对区域循环和局部电流模式。 这种综合方法将提供有关物理状态如何影响底栖生物群落的信息。