SGER: Towards a New Functional Approach for Comparing Stream Ecosystems

SGER：探索一种比较河流生态系统的新功能方法

• 批准号: 9215019
• 负责人: N. Leroy Poff
• 金额: $ 5万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9215019&HistoricalAwards=false
• 关键词: SGER; Towards; New; Functional; Approach

An emerging theoretical framework in stream ecology attempts to describe how physical disturbance regulates ecosystem structure and function at multiple spatial scales. A major goal of this emerging framework is to predict ecological attributes of lotic ecosystems based on knowledge of geomorphology and hydrology, which together can describe how stable or frequently disturbed benthic habitats are. The PI will characterize lotic invertebrate communities in functional terms (e.g., life history, mobility, size spectra, and morpho-behavioral attributes) that should represent integrated organism responses to physical disturbance. Using these non-taxonomic indices, The PI will test the hypothesis that community structure is quantitatively related to habitat stability and disturbance. Research will be conducted on 10 carefully- selected streams in the Eastern Deciduous Biome to isolate the mechanism (habitat disturbance) hypothesized to explain much variability in invertebrate community structure.

溪流生态学中一个新兴的理论框架试图 描述物理干扰如何调节生态系统结构 并在多个空间尺度上发挥作用。 一个主要目标是 一个新的框架是预测湖泊的生态属性 生态系统基于地貌学和水文学知识， 一起可以描述稳定或经常受到干扰的底栖生物 栖息地是。 PI将描述无脊椎动物的特征 功能方面的社区（例如，生活史，活动能力，体型 光谱和形态行为属性），这些属性应该代表 有机体对物理干扰的反应。 使用这些 非分类学指标，PI将检验以下假设： 群落结构与生境稳定性有定量关系 和干扰。 研究将在10个仔细进行- 在东部落叶生物群落中选择溪流， 机制（栖息地干扰）假设解释了很多 无脊椎动物群落结构的变化。