Earth & Environmental Sciences
pine
100%
tree ring
69%
wilderness area
66%
mountain
59%
chronology
44%
wilderness
39%
treeline
39%
fire history
38%
temperature
23%
summer
21%
Pacific Decadal Oscillation
19%
lake
16%
beetle
14%
twentieth century
13%
clearcutting
13%
infection
12%
environmental gradient
12%
earthworm
12%
water
12%
road
11%
coniferous tree
11%
wildfire
11%
fur
10%
timescale
10%
national park
9%
fragmentation
9%
border
9%
watershed
9%
trend
9%
regeneration
9%
disaster
9%
warming
8%
ecology
8%
Holocene
8%
travel
7%
spring (season)
7%
analysis
7%
overstory
7%
ecosystem
7%
vegetation
7%
comparison
6%
drought
6%
transect
5%
vegetation history
5%
cultural history
5%
young
5%
Agriculture & Biology
Rocky Mountain region
58%
growth rings
56%
fire history
45%
fire regime
41%
wilderness
39%
climate
35%
Pinus
35%
Pinus contorta var. latifolia
30%
treeline
30%
coniferous forests
28%
fire scars
26%
latewood
24%
Pinus resinosa
24%
earlywood
20%
Pinus albicaulis
18%
subalpine forests
17%
summer
17%
Arceuthobium
17%
records (publications)
16%
state parks
14%
conifer needles
14%
Western United States
14%
hardwood forests
13%
roads
12%
habitat fragmentation
11%
earthworms
11%
conifers
11%
national parks
10%
fur
10%
vegetation
9%
ecosystems
9%
travel
9%
lakes
7%
land use
7%
temperature
7%
indigenous knowledge
6%
Santalales
6%
historical records
6%
tree age
5%
infection
5%
cultural landscape
5%
clearcutting
5%
Thuja occidentalis
5%
Pseudotsuga menziesii
5%
history
5%
lightning
5%
land tenure
5%
sampling
5%
Great Lakes region
5%
Pinus strobus
5%
Social Sciences
Boundary waters
58%
climate
20%
cultural landscape
20%
travel
19%
land use
18%
geography
14%
road
12%
evidence
12%
suppression
12%
twentieth century
11%
fragmentation
10%
ecology
10%
symbol
9%
artifact
9%
disaster
9%
Human Uses
7%
cultural history
7%
economy
6%
Land tenure
6%
history
6%
regime
6%
present
5%
evaluation
5%
