Table 1.
Centrality Measures in Relation to Sample Environmental Origin in Observed and Random Networks
| Network Metric | Soil |
Sea |
Host |
Inland water |
||||
|---|---|---|---|---|---|---|---|---|
| Real | Random | Real | Random | Real | Random | Real | Random | |
| Betweenness | 4.6 | 16.8(6.02) | 52.46 | 42.20(4.05) | 50.52 | 61.14(5.24) | 102.67 | 63.76(6.9) |
| P = 2*10−3 | P = 2*10−2 | P = 2*10−2 | ||||||
| Closeness | 0.42 | 0.44(0.008) | 0.46 | 0.48(0.07) | 0.49 | 0.50(0.009) | 0.50 | 0.48(0.01) |
| P = 1*10−3 | P = 9*10−3 | P = 4*10−3 | ||||||
| Clustering c. | 0.68 | 0.18(0.03) | 0.6 | 0.24(0.03) | 0.56 | 0.24(0.02) | 0.39 | 0.20(0.03) |
| P = 1*10−3 | P = 3*10−1 | P = 2*10−3 | ||||||
Note.—Values in parentheses after randomized values indicate standard deviation. Values after real values for soil, host, and sea metagenomes indicate P values for comparisons to inland water samples (Mann–Whitney U test).