Agriculture & Biology
ecosystem services
100%
biodiversity
92%
ecosystems
71%
urbanization
55%
infectious diseases
54%
risk reduction
50%
public policy
38%
case studies
38%
residential areas
37%
globalization
37%
cost of illness analysis
37%
socioeconomic status
36%
land use
31%
economic systems
31%
economics
31%
social sciences
30%
ecological economics
30%
economic development
29%
nitrogen
28%
social benefit
27%
water security
25%
ecology
25%
biodiversity conservation
24%
carbon
24%
income
23%
avian influenza
23%
population density
23%
economic incentives
23%
development theory
23%
cultural landscape
22%
trajectories
22%
adaptive management
22%
prediction
21%
desert soils
21%
economists
21%
green infrastructure
21%
census data
20%
Sonoran Desert
20%
famine
20%
species dispersal
20%
Agave
19%
wetlands
19%
ecological function
18%
habitat destruction
18%
habitats
18%
emerging diseases
18%
soil
18%
anthropogenic activities
18%
organic nitrogen
17%
waterfowl
17%
Earth & Environmental Sciences
infectious disease
67%
species-area relationship
53%
ecosystem service
52%
biodiversity
50%
income
48%
policy
45%
economics
42%
science
42%
urbanization
40%
society
38%
world
37%
socioeconomic status
36%
land
36%
human behavior
30%
mitigation
29%
nitrogen
28%
economic structure
28%
avian influenza
28%
ecosystem
28%
turnover
26%
groundwater
26%
socioeconomics
25%
population density
25%
ecology
25%
land use
23%
willingness to pay
22%
decision
22%
social system
22%
climate
22%
disturbance
21%
attribute
21%
climate modeling
21%
livelihood
21%
biodiversity loss
20%
development theory
20%
groundwater resource
20%
low carbon economy
20%
cost
20%
desert soil
20%
incentive
19%
mutualism
19%
economic growth
19%
famine
19%
biomass energy
19%
sustainability
19%
valuation
19%
species extinction
19%
path analysis
19%
economic incentive
18%
rate
18%
Social Sciences
water
31%
resilience
31%
farmer
30%
climate
29%
contagious disease
28%
income
25%
price elasticity
24%
vulnerability
23%
Mexico
23%
livelihood
20%
urbanization
20%
urban structure
19%
wetland
19%
climate change
19%
cause
18%
environmental damage
17%
rigidity
17%
Geographic information systems
17%
economic growth
16%
nutrition situation
16%
coproduction
16%
economic structure
16%
habitat
16%
science policy
15%
Iran
15%
archaeology
15%
Southeast Asia
15%
diversification
15%
drought
14%
sustainable development
14%
recession
14%
uncertainty
14%
food
14%
time
14%
demand
13%
costs
11%
China
11%
social status
11%
coping
11%
event
10%
globalization
10%
death
10%
contact
10%
Waterfowl habitat
9%
Water quality
9%
economy
8%
credibility
8%
animal protein
8%
organization
8%
food supply
8%