Table 4.
Protected area extent by Udvardy biome.
| Udvardy biomes | biome (km2) | extent of PAs (km2) | % biome protected |
|---|---|---|---|
| tropical humid forests | 10 553 490 | 1 991 052 | 18.87 |
| sub-tropical/temperate rain forests/woodlands | 3 961 627 | 539 155 | 13.61 |
| temperate needle-leaf forests/woodlands | 17 032 915 | 1 424 311 | 8.36 |
| tropical dry forests/woodlands | 17 316 029 | 2 302 192 | 13.30 |
| temperate broad-leaf forests | 11 278 456 | 1 159 314 | 10.28 |
| evergreen sclerophyllous forests | 3 720 843 | 327 696 | 8.81 |
| warm deserts/semideserts | 24 247 134 | 2 681 875 | 11.06 |
| cold-winter deserts | 9 282 478 | 1 340 329 | 14.44 |
| tundra communities | 9 479 571 | 2 093 468 | 22.08 |
| tropical grasslands/savannas | 4 265 293 | 564 061 | 13.22 |
| temperate grasslands | 9 009 157 | 536 405 | 5.95 |
| mixed mountain systems | 10 631 877 | 1 721 892 | 16.20 |
| mixed island systems | 3 292 175 | 402 432 | 12.22 |
| mixed island systems (additional terr. 2004) | 10 533 | 391 | 3.71 |
| lake systems | 537 961 | 14 270 | 2.65 |
| Antarctic glaciers/tundra | 12 440 785 | 795 | 0.01 |
| Caspian sea (added 2004) | 373 248 | 3934 | 1.05 |
| ocean (added 2004) | 362 630 384 | 2 099 456 | 0.58 |