Results of a principal components analysis of the eight phylogenetic beta diversity metrics used in this study.

The loadings of the first three principal component (PC) axes are provided. The proportion of the variance explained by each axis and the cumulative variance explained are also provided.本数据集提供了前三个主成分（Principal Component，简称PC）轴的载荷值，同时给出了各轴所解释的方差占比与累计解释方差。