WWF | Conservation Science | Biomes and Biogeographical Realms

Australasia \| Antarctic \| Afrotropic \| Indo-Malayan NEARCTIC \| Neotropic \| Oceania \| Palearctic
Tropical & Subtropical Dry Broadleaf Forests
NA0201	Sonoran-Sinaloan transition subtropical dry forest
Tropical & Subtropical Coniferous Forests
NA0301 NA0302 NA0303	Bermuda subtropical conifer forests Sierra Madre Occidental pine-oak forests Sierra Madre Oriental pine-oak forests
Temperate Broadleaf & Mixed Forests
NA0401 NA0402 NA0403 NA0404 NA0405 NA0406 NA0407 NA0408 NA0409 NA0410 NA0411 NA0412 NA0413 NA0414 NA0415 NA0416 NA0417	Allegheny Highlands forests Appalachian mixed mesophytic forests Appalachian-Blue Ridge forests Central U.S. hardwood forests East Central Texas forests Eastern forest-boreal transition Eastern Great Lakes lowland forests Gulf of St. Lawrence lowland forests Mississippi lowland forests New England-Acadian forests Northeastern coastal forests Ozark Mountain forests Southeastern mixed forests Southern Great Lakes forests Upper Midwest forest-savanna transition Western Great Lakes forests Willamette Valley forests
Temperate Coniferous Forests
NA0501 NA0502 NA0503 NA0504 NA0505 NA0506 NA0507 NA0508 NA0509 NA0510 NA0511 NA0512 NA0513 NA0514 NA0515 NA0516 NA0517 NA0518 NA0519 NA0520 NA0521 NA0522 NA0523 NA0524 NA0525 NA0526 NA0527 NA0528 NA0529 NA0530	Alberta Mountain forests Alberta-British Columbia foothills forests Arizona Mountains forests Atlantic coastal pine barrens Blue Mountains forests British Columbia mainland coastal forests Cascade Mountains leeward forests Central and Southern Cascades forests Central British Columbia Mountain forests Central Pacific coastal forests Colorado Rockies forests Eastern Cascades forests Florida sand pine scrub Fraser Plateau and Basin complex Great Basin montane forests Klamath-Siskiyou forests Middle Atlantic coastal forests North Central Rockies forests Northern California coastal forests Northern Pacific coastal forests Northern transitional alpine forests Okanogan dry forests Piney Woods forests Puget lowland forests Queen Charlotte Islands Sierra Juarez and San Pedro Martir pine-oak forests Sierra Nevada forests South Central Rockies forests Southeastern conifer forests Wasatch and Uinta montane forests
Boreal Forests/Taiga
NA0601 NA0602 NA0603 NA0604 NA0605 NA0606 NA0607 NA0608 NA0609 NA0610 NA0611 NA0612 NA0613 NA0614 NA0615 NA0616 NA0617	Alaska Peninsula montane taiga Central Canadian Shield forests Cook Inlet taiga Copper Plateau taiga Eastern Canadian forests Eastern Canadian Shield taiga Interior Alaska-Yukon lowland taiga Mid-Continental Canadian forests Midwestern Canadian Shield forests Muskwa-Slave Lake forests Newfoundland Highland forests Northern Canadian Shield taiga Northern Cordillera forests Northwest Territories taiga South Avalon-Burin oceanic barrens Southern Hudson Bay taiga Yukon Interior dry forests
Tropical & Subtropical Grasslands, Savannas, & Shrublands
NA0701	Western Gulf coastal grasslands
Temperate Grasslands, Savannas, & Shrublands
NA0801 NA0802 NA0803 NA0804 NA0805 NA0806 NA0807 NA0808 NA0809 NA0810 NA0811 NA0812 NA0813 NA0814 NA0815	California Central Valley grasslands Canadian Aspen forests and parklands Central and Southern mixed grasslands Central forest-grasslands transition Central tall grasslands Edwards Plateau savanna Flint Hills tall grasslands Montana Valley and Foothill grasslands Nebraska Sand Hills mixed grasslands Northern mixed grasslands Northern short grasslands Northern tall grasslands Palouse grasslands Texas blackland prairies Western short grasslands
Tundra
NA1101 NA1102 NA1103 NA1104 NA1105 NA1106 NA1107 NA1108 NA1109 NA1110 NA1111 NA1112 NA1113 NA1114 NA1115 NA1116 NA1117 NA1118	Alaska-St. Elias Range tundra Aleutian Islands tundra Arctic coastal tundra Arctic foothills tundra Baffin coastal tundra Beringia lowland tundra Beringia upland tundra Brooks-British Range tundra Davis Highlands tundra High Arctic tundra Interior Yukon-Alaska alpine tundra Kalaallit Nunaat high arctic tundra Kalaallit Nunaat low arctic tundra Low Arctic tundra Middle Arctic tundra Ogilvie-MacKenzie alpine tundra Pacific Coastal Mountain icefields and tundra Torngat Mountain tundra
Mediterranean Forests, Woodlands, & Shrub
NA1201 NA1202 NA1203	California coastal sage and chaparral California interior chaparral and woodlands California montane chaparral and woodlands
Deserts & Xeric Shrublands
NA1301 NA1302 NA1303 NA1304 NA1305 NA1306 NA1307 NA1308 NA1309 NA1310 NA1311 NA1312 NA1313	Baja California desert Central Mexican matorral Chihuahuan desert Colorado Plateau shrublands Great Basin shrub steppe Gulf of California xeric scrub Meseta Central matorral Mojave desert Snake-Columbia shrub steppe Sonoran desert Tamaulipan matorral Tamaulipan mezquital Wyoming Basin shrub steppe
Mangrove
NA1401	Northwest Mexican Coast mangroves

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