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.

这是对养分通量和食物网络控制在调节湖泊生产力中相互作用的实验研究。 在2 x 2的设计中，将操纵四个湖泊，以测试替代食品网络结构的能力，以响应增加的营养负荷。 该计划的理论框架集中在生态系统过程的稳定性和补偿能力上。它基于规模依赖性的观点，范围从DIEL动力学到古学校准，从单个物种到整个社区。 该计划开发的模型范围从单个队列的人群动态到营养水平反应的综合指标。 这项研究的结果将提供概念和战术进步，以推动食品网络管理技术作为改善水质的一种手段。 这是一支出色的研究团队，以前曾参与营养级联研究。 这项研究可用的设施非常出色。