Table 3.
Core network and sub-networks statistics
| Network | Nodes (#OTUs) | Edges | Di. | De. | Average degree | Average path length | Average clustering coefficient | Largest clique (#) | Mod. |
|---|---|---|---|---|---|---|---|---|---|
| Core network | 262 (259) | 1411 | 11 | 0.04 | 10.7 | 3.45 | 0.52 | 13 (4) | 0.19 |
| Random ER network | 262 | 1411 | 5 | 0.04 | 10.7 | 2.60 | 0.03 | 3 (199) | 0.13 |
| Random WS network | 262 | 1411 | 5 | 0.04 | 10.7 | 2.93 | 0.33 | 6 (12) | 0.60 |
| Random BA network | 262 | 1411 | 5 | 0.04 | 10.7 | 2.63 | 0.08 | 5 (6) | 0.09 |
| Picoplankton alla | 161 (160)* | 620* | 10 | 0.05 | 7.7 | 3.13 | 0.55 | 10 (1) | 0.22 |
| Picoplankton onlyb | 110 (109) | 378 | 9 | 0.06 | 6.9 | 3.15 | 0.51 | 9 (4) | 0.29 |
| Nanoplankton allc | 197 (194)* | 1033* | 10 | 0.05 | 10.5 | 3.18 | 0.57 | 13 (4) | 0.15 |
| Nanoplankton onlyd | 153 (150) | 791 | 10 | 0.07 | 10.3 | 3.21 | 0.56 | 13 (4) | 0.17 |
| Bacteria alle | 233 (230)** | 1236** | 10 | 0.04 | 10.6 | 3.34 | 0.52 | 11 (3) | 0.19 |
| Bacteria onlyf | 185 (182) | 803 | 10 | 0.05 | 8.7 | 3.50 | 0.51 | 10 (1) | 0.31 |
| Protists allg | 147 (145)** | 608** | 5 | 0.06 | 8.3 | 2.40 | 0.48 | 8 (2) | 0.10 |
| Protist onlyh | 80 (77) | 175 | 5 | 0.05 | 4.4 | 2.54 | 0.54 | 7 (1) | 0.32 |
NB, Networks and sub-networks include OTUs and environmental factors. Di = Network diameter. De = Network density. Largest clique = size of the largest clique(s) in the network, and in brackets, the number of them. Mod = Network modularity inferred using edge betweenness
*Includes nodes and edges shared between pico- and nanoplankton
** Includes nodes and edges shared between bacteria and protists. Random ER network: follows the Erdős-Rényi model. Random WS network: “Small world” random network (Watts-Strogatz model). Random BA network: Scale free-random network (Barabási-Albert model)
aAll associations where picoplankton OTUs are involved (including nanoplankton)
bAssociations between picoplankton OTU only
cAll associations where nanoplankton OTUs are involved (including picoplankton)
dAssociations between nanoplankton OTU only
eAll associations where bacterial OTUs are involved (including protists)
fAssociations between bacterial OTU only
gAll associations where protist OTUs are involved (including bacteria)
hAssociations between protist OTU only. * Includes nodes and edges shared between pico- and nanoplankton