Earth & Environmental Sciences
pine
87%
soil
60%
ecosystem
59%
climate
44%
restoration
38%
effect
38%
wildfire
37%
vegetation
37%
carbon
37%
warming
30%
climate change
30%
drought
29%
lake
27%
mountain
27%
asteroid
27%
habitat
26%
beetle
25%
Holocene
25%
fungus
25%
grassland
25%
coniferous tree
24%
nitrogen
24%
productivity
23%
Mars
22%
rate
21%
mortality
21%
seedling
21%
canyon
21%
basin
21%
plateau
21%
biomass
21%
temperature
20%
sediment
20%
distribution
20%
genotype
20%
herbivore
19%
thinning
19%
disturbance
19%
crater
19%
desert
19%
analysis
18%
permafrost
18%
North America
18%
river
18%
insect
18%
history
18%
land
18%
understory
18%
bark
17%
litter
17%
gene
17%
tourism
17%
modeling
16%
herbivory
16%
oak
16%
soil crust
16%
canopy
16%
community composition
16%
tundra
16%
water
16%
arthropod
15%
resource
15%
woodland
15%
soil carbon
15%
valley
15%
amino acid
15%
shrub
15%
plant community
14%
science
14%
microbial community
14%
loss
14%
experiment
14%
young
14%
plant species
14%
bird
14%
seed
14%
national park
14%
phenology
14%
genetic variation
14%
decomposition
14%
grass
14%
regeneration
14%
bat
13%
dust
13%
comparison
13%
ice
13%
ecology
13%
racemization
13%
pollen
13%
biodiversity
13%
nutrient
13%
albedo
13%
detection
12%
infection
12%
respiration
12%
method
12%
DNA
12%
project
12%
test
12%
trend
11%
Agriculture & Biology
Pinus ponderosa
100%
ecosystems
83%
coniferous forests
56%
soil
52%
wildfires
46%
climate
43%
climate change
40%
vegetation
36%
carbon
36%
drought
29%
biological soil crusts
28%
herbivores
26%
habitats
25%
Arceuthobium
24%
Pinus
23%
fire regime
22%
nitrogen
21%
grasslands
21%
thinning (plants)
20%
Southwestern United States
20%
bark beetles
20%
ecological restoration
18%
microbial communities
18%
Pinus edulis
18%
permafrost
17%
biodiversity
17%
woodlands
17%
tundra
16%
prescribed burning
16%
understory
16%
Quercus
16%
lakes
16%
canopy
15%
fire severity
15%
canyons
15%
water
15%
genetic variation
15%
plant communities
15%
temperature
15%
species diversity
15%
Populus fremontii
15%
methodology
14%
leaves
14%
ecology
14%
shrubs
14%
mountains
14%
arid lands
14%
forest restoration
14%
degradation
14%
mycorrhizal fungi
14%
sediments
14%
carbon dioxide
13%
Populus angustifolia
13%
genotype
13%
soil carbon
13%
sampling
13%
Chiroptera
13%
fungi
13%
shrublands
13%
managers
13%
biomass
13%
deserts
12%
terrestrial ecosystems
12%
community structure
12%
seedlings
12%
conifers
12%
species richness
12%
Coleoptera
12%
fungal communities
12%
mixed forests
12%
plant litter
12%
nutrients
12%
arthropod communities
11%
ecological function
11%
tree mortality
11%
birds
11%
environmental factors
11%
carbon sinks
11%
phylogeny
11%
gross primary productivity
11%
Burkholderia pseudomallei
11%
case studies
11%
genome
11%
meta-analysis
11%
uncertainty
11%
net primary productivity
11%
phenology
11%
mosses and liverworts
10%
rivers
10%
fuels (fire ecology)
10%
Mexico
10%
prediction
10%
testing
10%
Arctic region
10%
Western United States
10%
planning
10%
grasses
10%
Pseudotsuga menziesii
10%
tree growth
10%
history
10%
Medicine & Life Sciences
Soil
83%
Ecosystem
74%
Microbiota
41%
Forests
38%
Genome
37%
Carbon
36%
Students
32%
Burkholderia pseudomallei
32%
Climate
31%
North American Indians
28%
Population
28%
Bacillus anthracis
27%
Climate Change
24%
Exercise
23%
Water
22%
Muscles
22%
Growth
19%
Health
19%
Temperature
19%
Walking
19%
Education
18%
Fungi
18%
Droughts
18%
Populus
17%
Single Nucleotide Polymorphism
17%
Bacteria
17%
Genes
16%
Ecology
16%
Melioidosis
15%
Nitrogen
15%
Francisella tularensis
15%
Yersinia pestis
15%
Minisatellite Repeats
14%
Genotype
14%
Biodiversity
14%
Coccidioides
14%
Child
14%
Genetic Variation
14%
Tundra
14%
Disease Outbreaks
14%
DNA
13%
Grassland
13%
Animals
13%
Connectin
13%
Mycobiome
12%
Infections
12%
Biomass
12%
Permafrost
11%
Hispanic Americans
11%
Ticks
11%
Coleoptera
11%
Pressure
11%
Soybeans
11%
Herbivory
11%
Chiroptera
11%
Foot
11%
Pinus
11%
Sciuridae
10%
Public Health
10%
Pinus ponderosa
10%
Sports
10%
North America
10%
Plague
10%
Phylogeny
10%
Carbon Sequestration
10%
Coccidioidomycosis
10%
Language
10%
Burkholderia
10%
Anthrax
10%
Psychology
9%
Genomics
9%
Isotopes
9%
Athletes
9%
Skeletal Muscle
9%
Pandemics
9%
Datasets
9%
Whole Genome Sequencing
9%
Lung
9%
Costs and Cost Analysis
9%
Research Personnel
9%
Ankle
9%
Anura
8%
Gait
8%
Nutrients
8%
Delivery of Health Care
8%
Respiration
8%
Carbon Cycle
8%
Mammals
8%
Learning
8%
Wildfires
8%
Gases
8%
Mutation
8%
Equipment and Supplies
8%
Fishes
8%
Therapeutics
8%
Proteins
8%
Wounds and Injuries
8%
Food
7%
Alaska Natives
7%
Metagenomics
7%