Ecoregions

205 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

Boreal Forests / Taiga (11)

East Siberian taiga

Palearctic 3922538 km²

Iceland boreal birch forests and alpine tundra

Palearctic 92077 km²

Kamchatka-Kurile meadows and sparse forests

Palearctic 147058 km²

Northeast Siberian taiga

Palearctic 1133272 km²

Okhotsk-Manchurian taiga

Palearctic 403515 km²

Sakhalin Island taiga

Palearctic 68944 km²

Scandinavian and Russian taiga

Palearctic 2170288 km²

Trans-Baikal conifer forests

Palearctic 201184 km²

West Siberian taiga

Palearctic 1680237 km²

Kamchatka taiga

Palearctic 15294 km²

Urals montane forest and taiga

Palearctic 175549 km²

Deserts & Xeric Shrublands (40)

East Saharan montane xeric woodlands

Palearctic 27776 km²

Red Sea coastal desert

Palearctic 58827 km²

Afghan Mountains semi-desert

Palearctic 13682 km²

Alashan Plateau semi-desert

Palearctic 674351 km²

Azerbaijan shrub desert and steppe

Palearctic 64090 km²

Badghyz and Karabil semi-desert

Palearctic 133646 km²

Baluchistan xeric woodlands

Palearctic 288424 km²

Caspian lowland desert

Palearctic 267975 km²

Central Afghan Mountains xeric woodlands

Palearctic 139333 km²

Central Asian northern desert

Palearctic 663852 km²

Central Asian riparian woodlands

Palearctic 88800 km²

Central Asian southern desert

Palearctic 567376 km²

Central Persian desert basins

Palearctic 580655 km²

Eastern Gobi desert steppe

Palearctic 282368 km²

Gobi Lakes Valley desert steppe

Palearctic 139713 km²

Great Lakes Basin desert steppe

Palearctic 157706 km²

Junggar Basin semi-desert

Palearctic 304941 km²

Kazakh semi-desert

Palearctic 680441 km²

Kopet Dag semi-desert

Palearctic 26285 km²

Mesopotamian shrub desert

Palearctic 204457 km²

Paropamisus xeric woodlands

Palearctic 92609 km²

Qaidam Basin semi-desert

Palearctic 192144 km²

Registan-North Pakistan sandy desert

Palearctic 276999 km²

South Iran Nubo-Sindian desert and semi-desert

Palearctic 350891 km²

Taklimakan desert

Palearctic 742657 km²

Tibesti-Jebel Uweinat montane xeric woodlands

Palearctic 82012 km²

West Saharan montane xeric woodlands

Palearctic 257460 km²

Arabian desert

Palearctic 815596 km²

Arabian sand desert

Palearctic 713576 km²

Arabian-Persian Gulf coastal plain desert

Palearctic 121500 km²

East Arabian fog shrublands and sand desert

Palearctic 17607 km²

East Sahara Desert

Palearctic 1537722 km²

North Arabian desert

Palearctic 467584 km²

North Arabian highland shrublands

Palearctic 8080 km²

North Saharan Xeric Steppe and Woodland

Palearctic 1598649 km²

Red Sea-Arabian Desert shrublands

Palearctic 313943 km²

Saharan Atlantic coastal desert

Palearctic 39817 km²

South Arabian plains and plateau desert

Palearctic 371277 km²

South Sahara desert

Palearctic 2915174 km²

West Sahara desert

Palearctic 743607 km²

Flooded Grasslands & Savannas (8)

Amur meadow steppe

Palearctic 123621 km²

Bohai Sea saline meadow

Palearctic 11565 km²

Nenjiang River grassland

Palearctic 23260 km²

Nile Delta flooded savanna

Palearctic 50755 km²

Saharan halophytics

Palearctic 53848 km²

Tigris-Euphrates alluvial salt marsh

Palearctic 35573 km²

Suiphun-Khanka meadows and forest meadows

Palearctic 33834 km²

Yellow Sea saline meadow

Palearctic 5319 km²

Mediterranean Forests, Woodlands & Scrub (22)

Aegean and Western Turkey sclerophyllous and mixed forests

Palearctic 133558 km²

Anatolian conifer and deciduous mixed forests

Palearctic 86393 km²

Canary Islands dry woodlands and forests

Palearctic 4967 km²

Corsican montane broadleaf and mixed forests

Palearctic 3634 km²

Crete Mediterranean forests

Palearctic 8192 km²

Cyprus Mediterranean forests

Palearctic 9273 km²

Iberian conifer forests

Palearctic 34461 km²

Iberian sclerophyllous and semi-deciduous forests

Palearctic 297956 km²

Illyrian deciduous forests

Palearctic 40639 km²

Italian sclerophyllous and semi-deciduous forests

Palearctic 102225 km²

Mediterranean Acacia-Argania dry woodlands and succulent thickets

Palearctic 99975 km²

Mediterranean dry woodlands and steppe

Palearctic 292081 km²

Mediterranean woodlands and forests

Palearctic 358237 km²

Northwest Iberian montane forests

Palearctic 57406 km²

Pindus Mountains mixed forests

Palearctic 39584 km²

South Apennine mixed montane forests

Palearctic 13095 km²

Southern Anatolian montane conifer and deciduous forests

Palearctic 76475 km²

Southwest Iberian Mediterranean sclerophyllous and mixed forests

Palearctic 71123 km²

Tyrrhenian-Adriatic sclerophyllous and mixed forests

Palearctic 85084 km²

Eastern Mediterranean conifer-broadleaf forests

Palearctic 142567 km²

Northeast Spain and Southern France Mediterranean forests

Palearctic 90851 km²

Southeast Iberian shrubs and woodlands

Palearctic 2868 km²

Montane Grasslands & Shrublands (22)

Altai alpine meadow and tundra

Palearctic 90435 km²

Central Tibetan Plateau alpine steppe

Palearctic 629192 km²

Eastern Himalayan alpine shrub and meadows

Palearctic 121014 km²

Ghorat-Hazarajat alpine meadow

Palearctic 66482 km²

Hindu Kush alpine meadow

Palearctic 28268 km²

Karakoram-West Tibetan Plateau alpine steppe

Palearctic 143265 km²

Khangai Mountains alpine meadow

Palearctic 37168 km²

Kopet Dag woodlands and forest steppe

Palearctic 58318 km²

Kuh Rud and Eastern Iran montane woodlands

Palearctic 126224 km²

Mediterranean High Atlas juniper steppe

Palearctic 6328 km²

North Tibetan Plateau-Kunlun Mountains alpine desert

Palearctic 374494 km²

Northwestern Himalayan alpine shrub and meadows

Palearctic 49390 km²

Ordos Plateau steppe

Palearctic 215604 km²

Pamir alpine desert and tundra

Palearctic 118040 km²

Qilian Mountains subalpine meadows

Palearctic 73285 km²

Sayan alpine meadows and tundra

Palearctic 81212 km²

Sulaiman Range alpine meadows

Palearctic 23850 km²

Tian Shan montane steppe and meadows

Palearctic 280611 km²

Western Himalayan alpine shrub and meadows

Palearctic 70090 km²

Southeast Tibet shrublands and meadows

Palearctic 460543 km²

Tibetan Plateau alpine shrublands and meadows

Palearctic 272000 km²

Yarlung Zanbo arid steppe

Palearctic 59381 km²

Temperate Broadleaf & Mixed Forests (45)

Azores temperate mixed forests

Palearctic 2617 km²

Balkan mixed forests

Palearctic 224767 km²

Baltic mixed forests

Palearctic 114576 km²

Cantabrian mixed forests

Palearctic 96266 km²

Caspian Hyrcanian mixed forests

Palearctic 55131 km²

Caucasus mixed forests

Palearctic 170538 km²

Celtic broadleaf forests

Palearctic 210027 km²

Central China Loess Plateau mixed forests

Palearctic 359867 km²

Central European mixed forests

Palearctic 733978 km²

Central Korean deciduous forests

Palearctic 104602 km²

Changbai Mountains mixed forests

Palearctic 93438 km²

Changjiang Plain evergreen forests

Palearctic 437582 km²

Crimean Submediterranean forest complex

Palearctic 30215 km²

Daba Mountains evergreen forests

Palearctic 168170 km²

Dinaric Mountains mixed forests

Palearctic 58286 km²

East European forest steppe

Palearctic 730131 km²

Eastern Anatolian deciduous forests

Palearctic 81628 km²

English Lowlands beech forests

Palearctic 45770 km²

Hokkaido deciduous forests

Palearctic 38146 km²

Huang He Plain mixed forests

Palearctic 434240 km²

Madeira evergreen forests

Palearctic 814 km²

Manchurian mixed forests

Palearctic 505287 km²

Nihonkai evergreen forests

Palearctic 21637 km²

Nihonkai montane deciduous forests

Palearctic 82360 km²

North Atlantic moist mixed forests

Palearctic 38697 km²

Northeast China Plain deciduous forests

Palearctic 232909 km²

Pannonian mixed forests

Palearctic 307716 km²

Po Basin mixed forests

Palearctic 42461 km²

Pyrenees conifer and mixed forests

Palearctic 25930 km²

Qin Ling Mountains deciduous forests

Palearctic 123278 km²

Rodope montane mixed forests

Palearctic 31686 km²

Sarmatic mixed forests

Palearctic 850314 km²

Sichuan Basin evergreen broadleaf forests

Palearctic 98009 km²

Southern Korea evergreen forests

Palearctic 14724 km²

Taiheiyo evergreen forests

Palearctic 138266 km²

Taiheiyo montane deciduous forests

Palearctic 41913 km²

Tarim Basin deciduous forests and steppe

Palearctic 54533 km²

Ussuri broadleaf and mixed forests

Palearctic 197958 km²

Western European broadleaf forests

Palearctic 493836 km²

Zagros Mountains forest steppe

Palearctic 397566 km²

Appenine deciduous montane forests

Palearctic 16147 km²

Central Anatolian steppe and woodlands

Palearctic 101493 km²

European Atlantic mixed forests

Palearctic 386558 km²

Euxine-Colchic broadleaf forests

Palearctic 74513 km²

Western Siberian hemiboreal forests

Palearctic 224490 km²

Temperate Coniferous Forests (21)

Alps conifer and mixed forests

Palearctic 149871 km²

Altai montane forest and forest steppe

Palearctic 142875 km²

Caledon conifer forests

Palearctic 22112 km²

Carpathian montane forests

Palearctic 125335 km²

Da Hinggan-Dzhagdy Mountains conifer forests

Palearctic 249274 km²

East Afghan montane conifer forests

Palearctic 20071 km²

Elburz Range forest steppe

Palearctic 63287 km²

Helanshan montane conifer forests

Palearctic 24704 km²

Hengduan Mountains subalpine conifer forests

Palearctic 99291 km²

Hokkaido montane conifer forests

Palearctic 45853 km²

Honshu alpine conifer forests

Palearctic 11505 km²

Khangai Mountains conifer forests

Palearctic 2902 km²

Mediterranean conifer and mixed forests

Palearctic 23097 km²

Northern Anatolian conifer and deciduous forests

Palearctic 101410 km²

Nujiang Langcang Gorge alpine conifer and mixed forests

Palearctic 82699 km²

Qilian Mountains conifer forests

Palearctic 16653 km²

Qionglai-Minshan conifer forests

Palearctic 80134 km²

Sayan montane conifer forests

Palearctic 358832 km²

Scandinavian coastal conifer forests

Palearctic 19539 km²

Tian Shan montane conifer forests

Palearctic 27568 km²

Northeast Himalayan subalpine conifer forests

Palearctic 46220 km²

Temperate Grasslands, Savannas & Shrublands (20)

Alai-Western Tian Shan steppe

Palearctic 127683 km²

Altai steppe and semi-desert

Palearctic 83192 km²

Central Anatolian steppe

Palearctic 24934 km²

Daurian forest steppe

Palearctic 209635 km²

Eastern Anatolian montane steppe

Palearctic 168382 km²

Emin Valley steppe

Palearctic 65135 km²

Faroe Islands boreal grasslands

Palearctic 1457 km²

Gissaro-Alai open woodlands

Palearctic 168202 km²

Kazakh forest steppe

Palearctic 422319 km²

Kazakh steppe

Palearctic 807558 km²

Mongolian-Manchurian grassland

Palearctic 889460 km²

Pontic steppe

Palearctic 997074 km²

Sayan Intermontane steppe

Palearctic 34059 km²

Selenge-Orkhon forest steppe

Palearctic 228369 km²

South Siberian forest steppe

Palearctic 162599 km²

Tian Shan foothill arid steppe

Palearctic 129231 km²

Al-Hajar foothill xeric woodlands and shrublands

Palearctic 46377 km²

Al-Hajar montane woodlands and shrublands

Palearctic 2140 km²

Kazakh upland steppe

Palearctic 72199 km²

Syrian xeric grasslands and shrublands

Palearctic 137938 km²

Tropical & Subtropical Moist Broadleaf Forests (2)

Guizhou Plateau broadleaf and mixed forests

Palearctic 269132 km²

Yunnan Plateau subtropical evergreen forests

Palearctic 239854 km²

Tundra (14)

Cherskii-Kolyma mountain tundra

Palearctic 560462 km²

Chukchi Peninsula tundra

Palearctic 300458 km²

Kola Peninsula tundra

Palearctic 59185 km²

Northeast Siberian coastal tundra

Palearctic 224273 km²

Northwest Russian-Novaya Zemlya tundra

Palearctic 286283 km²

Novosibirsk Islands Arctic desert

Palearctic 37247 km²

Scandinavian Montane Birch forest and grasslands

Palearctic 244865 km²

Taimyr-Central Siberian tundra

Palearctic 962153 km²

Trans-Baikal Bald Mountain tundra

Palearctic 218608 km²

Wrangel Island Arctic desert

Palearctic 7595 km²

Yamal-Gydan tundra

Palearctic 415127 km²

Kamchatka tundra

Palearctic 119889 km²

Russian Arctic desert

Palearctic 162810 km²

Russian Bering tundra

Palearctic 477261 km²