Agriculture & Biology
lakes
98%
tundra
91%
climate change
71%
sediments
69%
climate
62%
fire regime
60%
pollen
49%
charcoal
48%
ecosystems
43%
Arctic region
43%
vegetation
41%
boreal forests
38%
shrubs
25%
ice
25%
refuge habitats
22%
Picea mariana
21%
wildfires
20%
forest fires
18%
grasses
17%
Betula
16%
permafrost
15%
temperature
14%
fire history
14%
British Columbia
13%
fossils
13%
summer
13%
oxygen isotopes
13%
geographical distribution
12%
Picea glauca
12%
Alnus
12%
ecotones
12%
silica
11%
carbon isotopes
11%
midges
11%
carbonates
11%
prairies
11%
Canada
10%
land cover
10%
Bacillariophyceae
10%
atmospheric circulation
10%
Tsuga mertensiana
10%
conifers
10%
phylogeography
9%
dry environmental conditions
9%
snow
8%
history
8%
oscillation
8%
solar radiation
8%
rain forests
7%
pollen analysis
7%
Earth & Environmental Sciences
pollen
100%
Holocene
99%
tundra
93%
lake
80%
climate change
57%
charcoal
50%
climate
43%
vegetation
40%
shrub
38%
sediment
36%
boreal forest
31%
lacustrine deposit
29%
moisture
24%
North America
18%
Younger Dryas
18%
refugium
17%
warming
17%
permafrost
17%
sediment core
16%
wildfire
16%
silica
15%
biome
15%
Beringia
15%
distribution
15%
brook
14%
temperature
14%
diatom
14%
forest fire
13%
Last Glacial-Interglacial
12%
summer
12%
coniferous tree
12%
organic matter
11%
Little Ice Age
11%
Last Glacial Maximum
11%
organic carbon
11%
varve
11%
herb
10%
accumulation rate
10%
transition
10%
soil
9%
