Earth & Environmental Sciences
pine
90%
ecosystem
67%
soil
58%
carbon
48%
climate
44%
effect
43%
vegetation
41%
restoration
40%
wildfire
40%
Mars
37%
asteroid
35%
climate change
34%
lake
31%
drought
30%
warming
30%
mountain
29%
beetle
29%
productivity
28%
habitat
28%
coniferous tree
28%
nitrogen
27%
biomass
27%
crater
26%
analysis
26%
rate
26%
canopy
25%
temperature
25%
modeling
25%
sediment
25%
distribution
25%
fungus
25%
basin
24%
thinning
24%
Holocene
24%
canyon
23%
disturbance
22%
mortality
22%
North America
22%
river
21%
grassland
21%
water
21%
seedling
20%
shrub
20%
permafrost
20%
tourism
20%
history
20%
land
20%
plateau
20%
herbivore
19%
tundra
19%
experiment
19%
desert
19%
litter
19%
oak
19%
resource
19%
loss
18%
valley
18%
bark
18%
young
17%
grass
17%
gene
17%
amino acid
17%
ice
17%
understory
17%
insect
17%
comparison
17%
soil crust
17%
cost
17%
herbivory
16%
trend
16%
method
16%
respiration
16%
policy
16%
soil carbon
16%
genotype
16%
science
16%
boreal forest
16%
woodland
16%
albedo
15%
remote sensing
15%
seed
15%
racemization
15%
nutrient
15%
national park
15%
microbial community
15%
test
15%
prairie
14%
detection
14%
phenology
14%
planet
14%
dust
14%
plant community
14%
biodiversity
14%
tectonics
14%
regeneration
14%
decomposition
14%
community composition
14%
isotope
14%
terrestrial ecosystem
13%
economics
13%
Agriculture & Biology
Pinus ponderosa
100%
ecosystems
95%
coniferous forests
59%
wildfires
51%
soil
50%
carbon
48%
climate change
45%
climate
43%
vegetation
39%
drought
29%
herbivores
28%
habitats
28%
nitrogen
27%
biological soil crusts
26%
Arceuthobium
25%
fire regime
24%
thinning (plants)
24%
Pinus
24%
canopy
23%
permafrost
22%
bark beetles
21%
tundra
20%
methodology
20%
Southwestern United States
20%
grasslands
19%
shrubs
19%
biomass
19%
remote sensing
19%
temperature
18%
woodlands
18%
ecological restoration
17%
water
17%
prescribed burning
17%
lakes
17%
Pinus edulis
17%
microbial communities
17%
biodiversity
17%
net primary productivity
17%
canyons
17%
terrestrial ecosystems
17%
species diversity
17%
forest restoration
17%
ecology
16%
leaves
16%
carbon dioxide
16%
soil carbon
15%
Quercus
15%
degradation
15%
plant communities
15%
managers
15%
Coleoptera
15%
fire severity
15%
Arctic region
15%
understory
15%
deserts
14%
mountains
14%
sediments
14%
uncertainty
14%
nutrients
14%
Burkholderia pseudomallei
14%
sampling
14%
species richness
14%
boreal forests
14%
conifers
14%
meta-analysis
13%
carbon sinks
13%
soil respiration
13%
mycorrhizal fungi
13%
eddy covariance
13%
genetic variation
13%
monitoring
13%
mixed forests
13%
fungi
13%
grasses
13%
Pseudotsuga menziesii
12%
shrublands
12%
Populus fremontii
12%
planning
12%
case studies
12%
testing
12%
Picea mariana
12%
environmental factors
12%
ecological function
12%
Mexico
12%
genotype
12%
seedlings
12%
global change
11%
prediction
11%
phenology
11%
birds
11%
lidar
11%
genome
11%
national parks
11%
global warming
11%
tree mortality
11%
fire history
11%
Populus angustifolia
11%
phylogeny
11%
burn severity
10%
fuels (fire ecology)
10%
Medicine & Life Sciences
Soil
74%
Ecosystem
72%
North American Indians
45%
Students
44%
Burkholderia pseudomallei
39%
Genome
38%
Forests
38%
Carbon
36%
Exercise
35%
Climate
33%
Health
33%
Population
29%
Walking
28%
Muscles
27%
Microbiota
26%
Education
25%
Water
25%
Pseudomonas aeruginosa
23%
Genes
23%
Bacillus anthracis
23%
Growth
23%
Climate Change
23%
Temperature
22%
Child
21%
Bacteria
19%
Nitrogen
18%
DNA
18%
Sciuridae
17%
Gait
17%
Fungi
17%
Melioidosis
17%
Hispanic Americans
17%
Animals
17%
Droughts
16%
Coccidioides
16%
Connectin
16%
Populus
15%
Proteins
15%
Mexico
15%
Ecology
15%
Public Health
14%
Pressure
14%
Coleoptera
14%
Biodiversity
14%
Disease Outbreaks
14%
Delivery of Health Care
14%
Tundra
14%
Caregivers
13%
Herbivory
13%
Single Nucleotide Polymorphism
13%
Learning
13%
Sports
13%
Genotype
13%
Foot
13%
Psychology
13%
Language
13%
Minisatellite Repeats
13%
Food
13%
Light
13%
Nutrients
12%
Research Personnel
12%
Alaska Natives
12%
Lung
12%
Biomechanical Phenomena
12%
Accidental Falls
12%
Interviews
12%
Infections
12%
Francisella tularensis
12%
Biomass
12%
Occupational Groups
12%
Costs and Cost Analysis
12%
Genetic Variation
12%
Grassland
11%
Skeletal Muscle
11%
Therapeutics
11%
Respiration
11%
Wounds and Injuries
11%
Soybeans
11%
Ticks
11%
Ankle
11%
Community Health Workers
11%
Equipment and Supplies
11%
Yersinia pestis
11%
Athletes
11%
Mycobiome
11%
Plasmids
11%
Weights and Measures
10%
Carbon Cycle
10%
Gases
10%
Technology
10%
Fatigue
10%
Communication
10%
Sexual and Gender Minorities
10%
Mutation
10%
Hot Temperature
10%
Escherichia coli
10%
Burkholderia
10%
Direction compound
10%
Stroke
9%
Anura
9%