| Strong ties | Weak ties | |
| Reliable information | 0.871*** | 0.0.683*** |
| Values | 0.748*** | 0.320* |
| Conflict | 0.732*** | 0.260 |
| Regular exchange of information | 0.957*** | -0.516* |
| Ecological advice | 0.217 | 0.389* |
| City planning advice | 0.691*** | 0.176 |
| Collaboration | 0.794** | 0.400* |
| n=17, *p<0.05, **p<0.01, ***p<0.001
| ||