Data from: Species-soil relationships across Amazonia: niche specificity and consistency in understory ferns

One of the two data files contains occurrence and abundance information for Adiantum and Lindsaea fern species in 1215 sampling units distributed across Amazonia. The other data file contains metadata and soil base cation concentration values. Explanations of the data columns are in the README.txt file.两份数据文件之一收录了分布于亚马逊流域的1215个采样单元中，铁线蕨属（Adiantum）与陵齿蕨属（Lindsaea）蕨类物种的出现情况及多度信息。另一份数据文件则包含元数据与土壤盐基阳离子浓度数值。各数据列的详细说明详见README.txt文件。