Fig. 2: The distribution and assembly process of viral communities.
From: Global diversity and ecological functions of viruses inhabiting oil reservoirs
a Nonmetric multidimensional scaling (NMDS) of viral communities colored by sampling sites. b Distance-decay relationships based on Bray-Curtis similarity (1 − dissimilarity of viral communities). The blue line denotes the least-squares linear regression across all spatial scales. Fitting equation, adjusted R2 values, and P values for Distance-decay are based on linear regression and presented above graph. c Proportions of viral community assembly processes in oil reservoirs, including variable selection, homogenizing selection, homogenizing dispersal, dispersal limitations, and drift. d Correlations between individual physicochemical parameters (pH, K+, and Mg2+) and Shannon-Wiener (left) and richness index (right) were examined using a Spearman’s rank test (two-sided P-value), shaded area shows 95% confidence interval around the fitted mean line. e NMDS of viral communities from different pH oil reservoirs. f NMDS of viral communities from different temperature oil reservoirs. Sample points are colored according to oil reservoirs pH (e) and temperature (f). Color bars from red to yellow represent values from small to large, respectively.
