Indirect interactions in terrestrial plant communities: emerging patterns and research gaps Dataset

This is the dataset from: Sotomayor DA and Lortie CJ. 2015. Indirect interactions in terrestrial plant communities: emerging patterns and research gaps. Ecosphere 6(6): art103. http://dx.doi.org/10.1890/ES14-00117.1<br>Methods<br>This dataset corresponds to a systematic review on inidirect interactions in terrestrial plant communities which captured the literature published between 1990 and July 2014 using the ISI Web of Science (WoS), Scopus, and Google Scholar. The following keywords were used: "indirect", "plant", "interaction", "competition", "facilitation". The first three words were used together in combination with the last two words in separate queries (i.e. indirect* plant* interaction* competition OR indirect* plant* interaction* facilitation).<br>The initial serach yielded 490 research articles obtained from the WoS, which were screened in order to assess their relevance. Searches in both Scopus and Google Scholar were conducted to complement the WoS search. The following inclusion criteria were used: (1) studies explicitly dealing with indirect interactions in terrestrial ecosystems (i.e. 3 or more species reported in the interaction); (2) studies describing the results of experiments specifically designed to test effects of indirect interactions versus proposals of indirect interactions in discussion; and (3) primary empirical research reported (i.e., not reviews). Papers complying with these criteria were processed to extract data on (1) type of interaction tested; (2) number of species tested as targets, where target is defined as the species on which measurements of performance were taken; (3) role of the species involved in the interaction considering not only target species, but also species that were removed or mentioned by the authors as members of the interaction; (4) type of experiment and number of field sites; (5) type of ecosystem and geographical location of the study; and (6) type of measurements and statistical analysis performed.

本数据集源自Sotomayor DA与Lortie CJ于2015年发表的研究《陆地植物群落的间接相互作用：新兴模式与研究空白》，刊载于Ecosphere期刊第6卷第6期，文章编号为art103，DOI链接为http://dx.doi.org/10.1890/ES14-00117.1。

研究方法
本数据集对应一项针对陆地植物群落间接相互作用的系统性综述。研究团队通过ISI Web of Science（WoS）、Scopus与Google Scholar数据库，检索了1990年至2014年7月期间发表的相关文献。所用检索关键词为："indirect"、"plant"、"interaction"、"competition"、"facilitation"。检索策略为将前三个关键词组合后，分别与后两个关键词进行联合查询，即：indirect* plant* interaction* competition 或 indirect* plant* interaction* facilitation。

初始检索从WoS数据库中获取了490篇研究论文，随后对这些论文进行筛选以评估其相关性。此外，研究团队还在Scopus和Google Scholar中开展了补充检索。本次研究采用以下纳入标准：(1) 明确针对陆地生态系统间接相互作用的研究（即报道了3种及以上物种的相互作用）；(2) 描述了专门设计用于检验间接相互作用效应的实验结果，而非仅在讨论中提出间接相互作用假说的研究；(3) 已发表的原创性实证研究（而非综述类文献）。

符合上述纳入标准的论文将被提取以下数据：(1) 所检验的相互作用类型；(2) 作为目标物种的受试物种数量，其中目标物种定义为开展性能指标测量的物种；(3) 参与相互作用的物种的角色，不仅包括目标物种，还包括作者提及的被移除或作为相互作用组成部分的物种；(4) 实验类型与野外试验站点数量；(5) 研究涉及的生态系统类型与地理位置；(6) 所采用的测量指标与统计分析方法。