互利关系影响生态系统服务的途径和机制探讨

项目名称： 互利关系影响生态系统服务的途径和机制探讨

项目编号： No.31470493

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 生物科学

项目作者： 陈又清

作者单位： 中国林业科学研究院资源昆虫研究所

项目金额： 87万元

中文摘要： 互利关系和生态系统的服务一直是生态学研究前沿。前期我们在山地研究蚂蚁与产蜜露昆虫间的互利关系时发现，这种互利关系有利于提高群落层面的生物多样性，而生物多样性与生态系统功能和服务密切相关。本项目在此基础上，进一步以在陆地生态系统中扮演基石相互作用（Keystone interaction）的互利关系为对象，以山地农林复合系统、农耕系统及人工林系统等代表性的不同土地利用方式为模式，探讨蚂蚁-产蜜露昆虫-寄主植物三者间相互作用导致的自上而下的效应（Top-down effects）和自下而上的效应（Bottom-up effects）对系统中植物适合度及其他营养级的影响，进而如何联合作用于生态系统的服务，以发展研究生态系统服务的途径和方法，并分析探讨其运行机制，为山地保护和发展提供决策依据。这些研究既是对互利关系重要前沿理论的探讨，也是对山地保护和发展的技术支持，有重要的理论价值和实践意义。

中文关键词： 种间相互作用；互利关系；植物适合度；营养级；生态系统服务

英文摘要： The mutualism and ecosystem services are always the research frontiers of ecology. During the pre-research of the mutualism between ants and the honeydew-producing insects, we found that this association could enhance the biodiversity at th community level, and biodiversity has close relationship with ecosystem functioning and ecosystem services. Based on this research, in this project, we will focus on ants-honeydew producing insects mutualism, which was termed as the keystone interaction in terrestrial ecosystems from an ecological perspective. Then we will select agroforest system, farming system, and artifical plannation system on hillsides as the models which represent different land-use way in mountainous area. After this, we will study the top-down effects and bottom-up effects on the fitness of plants and other trophic levels due to the interactions among ants, honeydew producing insects, and host plants, then their combined effects on ecosystem services, to develop the channals and the ways of studying the ecosystem services, to probe into the mechanism of mutualism influcing on the ecosystem services and how the ecosystem responding to mutualism, and to provide data to make policy for mountainous area protection and development. All of these researchs are both the probe into frontier of mutualism theory and technology support for protection and development for mountainous area with important theory value and practice-direction significance.

英文关键词： species interaction;mutualism;plant fitness;trophic level;ecosystem service