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Table 1 Topological properties of the abundant (relative abundance > 0.05%) and frequent ASVs (occurred in > 50% samples) co-occurrence networks and their identically sized Erdős-Rényi random networks in different habitats (river vs. lake)

From: Contrast diversity patterns and processes of microbial community assembly in a river-lake continuum across a catchment scale in northwestern China

 

Empirical network

Random network

N

E

Modularity

avgCC

APL

ND

AD

GD

σ

Modularity

avgCC

APL

Positive

Negative

River

189

443 (96.3%)

17 (3.7%)

0.653

0.376

7.07

17

4.87

0.026

3.2

0.412

0.056

3.33

Lake

115

1417 (67.3%)

687 (32.7%)

0.211

0.549

1.70

3

36.59

0.321

1.4

0.086

0.397

1.69

  1. N: No. of nodes; E: No. of edges; avgCC: Average clustering coefficient; APL: Average path length; ND: network diameter; AD: Average degree; GD: Graph density; σ: small-word coefficient
  2. σ = (avgCC/avgCCr)/(APL/APLr) and σ > 1 indicates “small-world” properties, i.e., high interconnectivity and high efficiency [39]. Subscript r indicates the properties of the random network