Agriculture & Biology
terrestrial ecosystems
100%
paleosolic soil types
75%
extinction
74%
basins
74%
Italy
65%
Hominidae
54%
carbon
52%
carbon isotopes
47%
fauna
22%
atmospheric chemistry
21%
tectonics
20%
oxygen isotopes
19%
cool season grasses
18%
C3 plants
16%
space and time
14%
temporal variation
14%
stable isotopes
13%
fossils
13%
organic matter
12%
shrubs
11%
climate
10%
carbon dioxide
10%
ecosystems
10%
vegetation
9%
biomass
8%
Earth & Environmental Sciences
terrestrial ecosystem
80%
extinction
67%
carbon
45%
paleosol
43%
basin
39%
carbon isotope
37%
environmental change
22%
grass
22%
fauna
20%
ecosystem stability
18%
atmospheric carbon dioxide
15%
fossil record
13%
oxygen isotope
12%
shrub
12%
isotopic composition
11%
stable isotope
11%
collision
11%
temporal variation
11%
Europe
9%
organic matter
8%
tectonics
8%
province
8%
biomass
8%
vegetation
8%
history
7%
Social Sciences
Italy
65%
major event
53%
event
45%
specialization
38%
climate
31%
cause
23%
history
21%
interaction
18%
evidence
16%
time
14%