Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Number of protected areas used in the analysis within each IUCN category and realm (n = 19 486). NC = protected areas with no IUCN category
| Realm | Ia | Ib | II | III | IV | V | VI | NC | Total |
|---|---|---|---|---|---|---|---|---|---|
| Afrotropical | 13 | 14 | 209 | 12 | 161 | 17 | 127 | 2954 | 3507 |
| Australasian | 403 | 9 | 138 | 653 | 67 | 66 | 67 | 96 | 1499 |
| Indomalayan | 124 | 70 | 200 | 1 | 353 | 77 | 36 | 98 | 959 |
| Nearctic | 172 | 819 | 297 | 199 | 402 | 1450 | 278 | 74 | 3691 |
| Neotropical | 89 | 3 | 304 | 35 | 169 | 105 | 239 | 331 | 1275 |
| Palearctic | 355 | 203 | 356 | 326 | 3844 | 2496 | 117 | 858 | 8555 |
