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.

群落生态学的一个基本目标是 环境过程（生物和物理）， 影响一个社区的人口动态。 在麦克默多 南极海域底栖生物群落组合具有较强的东西向性 和南北密度梯度。 这些组合显然是 与初级生产的梯度有关。 的目的 研究的目的是解释生产率梯度在功能上是如何 与底栖系统有关。 这项研究将检查相对 现场生产和平流在影响 社区结构调查小组将检查海底 微生物和小型底栖动物的营养关系，原生动物生态学 和小型底栖生物以及原地底栖生物生产。的研究 大型底栖动物将侧重于补充、生长和生存。 的 物质部分将直接用于区域流通和地方 目前的模式。 这一综合办法将提供信息， 物理状况如何影响海底生物群落。