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Ecology
*ARCTIC REGIONS
1
*SOILS
1
*VEGETATION
1
*WETLANDS
1
ACIDS
1
ALASKA
1
AQUATIC PLANTS
1
Arctic Alaska
1
BROOKS RANGE
1
ECOSYSTEMS
1
HYDROGEN
1
IDENTIFICATION
1
Microtus
1
SOIL CONSERVATION
1
SOIL CONSERVATION SERVICE
1
TUNDRA
1
TUSSOCK TUNDRA
1
U.S. FISH AND WILDLIFE SERVICE
1
WILDLIFE
1
Wildlife conservation
1
Zoology
1
habitat affinities
1
singing vole
1
space use
1
tundra vole
1
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