Alaska Arctic Tundra Vegetation Map
Introduction
Barren Complexes:
B2.1B2.1 Lichens on Lava (Seward Peninsula) -
B3d.1B3d.1 Acidic mountain complexes (St. Lawrence Is.) -
B3e.1B3e.1 Acidic mountain complexes (Brooks Range) -
B3e.2B3e.2 Acidic mountain complexes (NW Alaska) -
B3e.3B3e.3 Acidic mountain complexes (Kuskokwim Mtns.) -
B4d.1B4d.1 Nonacidic mountain complexes (Seward Peninsula) -
B4d.2B4d.2 Nonacidic mountain complexes (St. Lawrence Is.) -
B4e.1B4e.1 Nonacidic mountain complexes (Brooks Range) -
B4e.2B4e.2 Nonacidic mountain complexes (NW Alaska)
Non-Tussock Graminoid Tundras:
G3.1G3.1 Moist nonacidic tundra (N. Arctic Coastal Plain) -
G3.2G3.2 Moist nonacidic tundra (St. Lawrence Is.) -
G3.3G3.3 Moist nonacidic tundra (Arctic Foothills, Seward Peninsula)
Tussock Graminoid Tundras:
G4.1G4.1 Tussock tundra (entire map) -
G4.2G4.2 Lichen-rich tussock tundra (Seward Peninsula) -
G4.3G4.3 Tussock tundra on sands (Arctic Coastal Plain)
Prostrate Dwarf-Shrub Tundras:
P2.1P2.1 Dry tundra (St. Matthew Is.)
Erect Dwarf-Shrub Tundras:
S1.1S1.1 Shrubby, tussock tundra (NE Alaska) -
S1.2S1.2 Dwarf-shrub, lichen tundra (NW Alaska) -
S1.3S1.3 Dwarf-shrub tundra on volcanic rock (Yukon-Kuskokwim Delta) -
S1.4S1.4 Dwarf-shrub, lichen tundra (Kuskokwim Mtns.)
Low-Shrub Tundras:
S2.1S2.1 Willow-birch tundra (entire map) -
S2.2S2.2 Alder shrublands (entire map)
Wetlands:
W1.1W1.1 Wet acidic coastal complex (N Alaska) -
W1.2W1.2 Wet nonacidic coastal complex (N Alaska) -
W2.1W2.1 Wet acidic complex (N Alaska, Seward Peninsula) -
W2.2W2.2 Wet nonacidic complex (Subzone D, N Alaska) -
W3.1W3.1 Wet acidic complex with tussock tundra (W Alaska) -
W3.2W3.2 Wet acidic complex with dwarf-shrub tundra (lower parts of Yukon-Kuskokwim Delta) -
W3.3W3.3 Wet acidic complex with low-shrub tundra (Yukon-Kuskokwim Delta) -
W3.4W3.4 Wet acidic complex with dwarf-shrub tundra (inland parts of Yukon-Kuskokwim Delta) -
W3.5W3.5 Wet acidic complex (Nunivak Is.) -
W3.6W3.6 Wet nonacidic complex (warmer parts of NW Alaska) -
W3.7W3.7 Wet coastal saline tundra (Yukon-Kuskokwim Delta)
Select image to enlarge.
Low-shrub tundra (willow, birch), Community No. 44, Ophir Creek near Council, Seward Peninsula, Alaska. (Photo: D.A. Walker.)
Select image to enlarge.
Low-shrub tundra (birch-willow), Community No. 44, near Happy Valley, Arctic Foothills, Alaska. (Photo: D.A. Walker.)
Select image to enlarge.
Low-shrub tundra (willow), Atigun River, Brooks Range, Alaska. (Photo: D.A. Walker.)
Select image to enlarge.
Low-shrub tundra (willow), Community No. 44, near Quartz Creek (Kougarok), Seward Peninsula, Alaska. (Photo: D.A. Walker.)
Select image to enlarge.
Low-shrub tundra (alder savannah), north of Kigluaik Mountains, Seward Peninsula, Alaska. (Photo: D.A. Walker.)
Select image to enlarge.
Low shrub tundra (alder savannah), (dominant below tussock tundra on ridge crest areas), north of Colville River, Arctic Foothills, Alaska (Photo: D.A. Walker.)
Select image to enlarge.
Low shrub tundra, (alder savannah), vicinity of Itkillik River north of Colville River, Arctic Foothills, Alaska (Photo: D.A. Walker.)
Vegetation Units
S2.1 Willow-birch tundra (entire map)
Low-shrub communities (comm. 44, 45) with open to closed canopies of willows or shrub birch, or open alder. Foothills of the Brooks Range, and valleys and foothills of the Seward Peninsula mountains and Kuskokwim Mountains, Subzone E.
Plant Communities:
Community 44
Sphagno-Eriophoretum vaginati betuletosum nanae, shrub tundra in warmer mesoclimatic oases along water tracks and in basins (Walker et al. 1994) (Imnavait Creek).
- Low shrub
- Erect dwarf-shrub
- Grass
- Moss
Community 45
Climacium dendroides-Alnus viridis comm., open alder shrub in warmer mesoclimatic oases of the foothills (Walker et al. 1997) (Happy Valley).
- Low shrub
- Erect dwarf shrub
- Grass
- Horsetail
- Forb
- Moss