| of key threats | 9 | other |
| for maintaining global biodiversity | 8 | purpose |
| to their survival | 7 | purpose |
| ecosystem → be → important | 28 |
| ecosystem → be → critical | 18 |
| ecosystem → be → crucial | 11 |
| ecosystem → be → essential | 8 |
| ecosystem → be → vital | 6 |
| ecosystem → be of → vital importance | 3 |
| ecosystem → become → important | 3 |
| negative | neutral | positive |
| 0.069 | 0.420 | 0.511 |
| Raw frequency | 77 |
| Normalized frequency | 0.920 |
| Modifier score | 0.500 |
| Perplexity | 160.835 |