Interaction of Nutrient Status and Food Web Structure in the Regulation of Lake Ecosystems

湖泊生态系统调节中营养状况与食物网结构的相互作用

• 批准号: 9007196
• 负责人: James Kitchell
• 金额: $ 190.22万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-01 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9007196&HistoricalAwards=false
• 关键词: Interaction; Nutrient; Status; Food; Web

This is an experimental study of the interaction of nutrient flux and food web controls in regulating the productivity of lakes. Four lakes will be manipulated in a 2 X 2 design that tests the capacity of alternative food web structures in response to increased nutrient loading. The theoretical framework for this program is focused on stability and compensatory capacity of ecosystem processes. It is based on scale-dependent perspectives that range from diel dynamics to paleolimnological calibration and from single species to entire communities. Models developed by the program will range from population dynamics of individual cohorts to integrated indicators of trophic level responses. Results of this study will provide both conceptual and tactical advances in furthering the use of food web management techniques as a means for improving water quality. This is an excellent research team that has been involved previously in trophic cascade research. The facilities available for this research are outstanding.

这是一项关于营养通量和食物网控制在调节湖泊生产力方面相互作用的实验研究。 四个湖泊将以 2 X 2 的设计进行控制，测试替代食物网结构响应增加的养分负荷的能力。 该计划的理论框架侧重于生态系统过程的稳定性和补偿能力。它基于尺度相关的视角，范围从昼夜动力学到古湖泊学校准，从单个物种到整个群落。 该计划开发的模型范围从个体群体的种群动态到营养级反应的综合指标。 这项研究的结果将为进一步利用食物网管理技术作为改善水质的手段提供概念和战术上的进步。 这是一支优秀的研究团队，之前一直参与营养级联研究。 用于这项研究的设施非常出色。