Extended Data Fig. 1: Environmental Composition of the Seven Peatland Sample Sites.
From: Ecosystem health shapes viral ecology in peatland soils
(A) Principal components analysis (PCA) of globally scaled environmental parameters for all samples, sites, and ecosystem health statuses (EHS; n = 66, missing measurements imputed [see Methods]). The percentages of variance captured by the first two PCA axes are provided. Each point represents an individual soil sample positioned according to its environmental parameter values, as summarized by the first two principal components. Ellipses, colored by EHS, represent 95% confidence intervals around the centroid of each group. Arrows indicate the direction and strength of each environmental parameter’s contribution to the ordination, with longer arrows signifying stronger influence. (B) PCA for each sampling site, using data scaled within each site to emphasize local variation while minimizing broader site-level differences.
