Ecoregions
18 WWF terrestrial ecoregions
Biodiversity Heatmap
Species count by biogeographic realm and taxonomic class
| Realm | Acidimicrobiia | Acidobacteriae | Aconoidasida | Actinomycetia | Actinopterygii | Aenigmatarchaeia | Agaricomycetes | Alphaproteobacteria |
|---|---|---|---|---|---|---|---|---|
| Afrotropic | — | — | 1 | — | — | — | 1 | — |
| Australasia | — | — | — | — | 1 | — | — | — |
| Indomalaya | — | — | — | — | 1 | — | 1 | — |
| Nearctic | — | — | — | — | — | — | — | — |
| Neotropic | — | — | — | — | — | — | 1 | — |
| Oceania | — | — | — | — | 1 | — | — | — |
| Palearctic | — | — | — | — | 1 | — | 1 | — |
| Antarctic | — | — | — | — | — | — | — | — |
Low
High
Tundra (18)
Alaska-St. Elias Range tundra
NA1101
Nearctic
165303 km²
Aleutian Islands tundra
NA1102
Nearctic
12279 km²
Arctic coastal tundra
NA1103
Nearctic
50041 km²
Arctic foothills tundra
NA1104
Nearctic
130337 km²
Beringia lowland tundra
NA1106
Nearctic
153512 km²
Beringia upland tundra
NA1107
Nearctic
47229 km²
Brooks-British Range tundra
NA1108
Nearctic
160610 km²
Davis Highlands tundra
NA1109
Nearctic
98542 km²
Interior Yukon-Alaska alpine tundra
NA1111
Nearctic
153588 km²
Kalaallit Nunaat High Arctic tundra
NA1112
Nearctic
149284 km²
Ogilvie-MacKenzie alpine tundra
NA1116
Nearctic
302981 km²
Pacific Coastal Mountain icefields and tundra
NA1117
Nearctic
106663 km²
Torngat Mountain tundra
NA1118
Nearctic
32767 km²
Ahklun and Kilbuck Upland Tundra
NA11404
Nearctic
50824 km²
Canadian High Arctic tundra
NA11412
Nearctic
649702 km²
Canadian Low Arctic tundra
NA11413
Nearctic
840832 km²
Canadian Middle Arctic Tundra
NA11414
Nearctic
985868 km²
Kalaallit Nunaat Arctic steppe
NA11417
Nearctic
329027 km²