Bailey Ecoregions — Index Maps
(Click on an index map to view the graphical display for that ecoregion.)
POLAR DOMAIN
Icecap Division
Glacial ice
Tundra Division
Ice and stoney deserts
Arctic tundras
Tundras
Tundra Mountains
Polar desert
Tundra - polar desert
Tundra - meadow
Oceanic meadow - heath
Subarctic Division
Forest-tundras and open woodlands
Tayga (boreal forests)
Subarctic Mountains
Open woodland - tundra
Tayga - tundra, medium
Tayga - tundra, high
HUMID TEMPERATE DOMAIN
Warm Continental Division
Mixed deciduous-coniferous forests
Warm Continental Mountains
Mixed forest - coniferous forest - tundra, medium
Mixed forest - coniferous forest - tundra, high
Hot Continental Division
Broadleaved forests, oceanic
Broadleaved forests, continental
Hot Continental Mountains
Deciduous or mixed forest - coniferous forest - meadow
Broadleaf forest - meadow
Subtropical Division
Broadleaved-coniferous evergreen forests
Coniferous-broadleaved semi-evergreen forests
Riverine forest
Subtropical Mountains
Mixed forest - meadow
Marine Division
Mixed forests
Marine Mountains
Deciduous or mixed forest - coniferous forest - meadow
Forest - meadow, medium
Forest - meadow, high
Prairie Division
Forest-steppes and prairies
Prairies and savannas
Mediterranean Division
Dry steppe
Mediterranean hardleaved evergreen forests, open woodlands and shrub
Redwood forests
Mediterranean Mountains
Mixed forest - coniferous forest - alpine meadow
Mediterranean woodland or shrub - mixed or coniferous forest - steppe or meadow
Shrub or woodland - steppe - meadow
DRY DOMAIN
Tropical/Subtropical Steppe Division
Coniferous open woodland and semideserts
Steppes
Steppes and shrubs
Shortgrass steppes
Tropical/Subtropical Steppe Mountains
Steppe or semidesert - mixed forest - alpine meadow or steppe
Tropical/Subtropical Desert Division
Semideserts
Oceanic semideserts
Deserts on sand
Tropical/Subtropical Desert Mountains
Semidesert - shrub - open woodland - steppe or alpine meadow
Desert or semidesert - open woodland or shrub - desert or steppe
Temperate Steppe Division
Steppes
Dry steppes
Temperate Steppe Mountains
Forest-steppe - coniferous forest - meadow - tundra
Steppe - coniferous forest - tundra
Steppe - coniferous forest
Steppe - open woodland - coniferous forest - alpine meadow
Temperate Desert Division
Semideserts
Semideserts and deserts
Temperate Desert Mountains
Semidesert - open woodland - coniferous forest - alpine meadow
HUMID TROPICAL DOMAIN
Savanna Division
Open woodlands, shrubs, and savannas
Semi-evergreen forests
Deciduous forests
Savanna Mountains
Open woodland - deciduous forest - coniferous forest - steppe or meadow
Forest - steppe
Rainforest Division
Semi-evergreen and evergreen forests
Evergreen forests
Rainforest Mountains
Evergreen forest - meadow or paramos
U.S. Department of the Interior |
U.S. Geological Survey