摘要
物种之间的间接作用关系是维持生物群落结构以及生态系统功能的关键因素。目前的理论模型和实验性研究均认为,物种间接作用的传递主要是由物种的密度变化所引起。但大量的实验证据表明,生物个体在形态、生理、行为和生活史性状的适应性变化,是物种间形成间接互作关系的另一个重要机制。生态学家把这种基于物种性状调控的种间关系称为性状调节的间接作用。深入了解性状调节的间接作用类型,发生机制和作用途径,有助于阐释自然界中多物种种间关系的复杂性和多样性形成机制。对性状调节的概念和性状的分类进行系统的总结,指出性状可塑性和物种特异性是物种间性状调节关系形成的两个重要机制。与其他类型的种间互作一样,性状调节的种间作用是驱动物种进化的重要力量。此外,分析了性状调节在自然群落中传递的几个重要途径,并强调这些间接作用在影响和调节生态系统功能和过程中的重要作用。最后,就性状调节种间关系的研究对象、研究尺度、以及研究方法等问题提出若干建议,为今后对这一问题的研究提供相关参考。
Indirect species interactions play a critical role in shaping community structure and the functioning of ecosystems. Previous empirical and theoretical studies commonly assumed that indirect interactions were caused in general by changes in population density of interacting species, which is referred to as ‘density-mediated indirect interactions.’ However, there is growing evidence that changes in traits of the individual intermediate species can also be an important mechanism that regulates indirect interactions among species, and ecologists term these species interactions ‘trait-mediated indirect interactions’ （TMⅡs）. TMⅡs are prevalent in both aquatic and terrestrial systems, and their effects are often as strong as, or stronger than, those of density-mediated indirect effects. Studies on the characteristics, causes, and consequences of TMⅡs are essential to understand the complexity and diversity of multispecies interactions in natural ecosystems fully. In this paper, we summarize the concept and classification of TMⅡs, and suggest that trait plasticity and species specificity are the two intrinsic mechanisms for the occurrence of TMⅡs. We also review the direct evidence for TMⅡs in various permutations of interaction webs that can have both trophic and non-trophic links, and then highlight the profound effects of TMⅡs on regulation of ecological functions and processes in a wide range of ecological systems. Finally, we propose future developments regarding the effects of TMⅡs to provide a reference framework for related research.
作者
朱玉
王德利
钟志伟
ZHU Yu;WANG Deli;ZHONG Zhiwei(School of Environment,Institute of Grassland Science, Northeast Normal University, Changehun 130117, China;Key Laboratory of Vegetation Ecology, Ministry of Education, Jilin Key Laboratory of Ecological Restoration and Ecosystem Management, Changchun 130024, China)
出处
《生态学报》
CAS
CSCD
北大核心
2017年第23期7781-7790,共10页
Acta Ecologica Sinica
基金
国家自然科学基金项目(31230012)
国家科技基础性工作专项(2012FY111900)
教育部创新团队发展计划(IRT-16R11)
中国博士后面上基金(2016M590246)
关键词
性状调节
间接作用
可塑性
适应
种间关系
trait-mediated indirect interactions
indirect effects
plasticity
adaption
species interactions
