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Insects
3
Islands
3
Lichens
Microorganisms
3
Mosses
Plants
3
Soils
3
54 Environmental Sciences
2
Algae
2
Animals
2
Arthropods
2
Biomass
2
Birds
2
Energy Sources
2
Fungi
2
Invertebrates
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Terrestrial-- Basic Studies-- (-1989)
2
Topography
2
Vertebrates
2
*Iceland-- Environment
1
58 Geosciences
1
580202 -- Geophysics-- Volcanology-- (1980-1989)
1
Biology
1
Chemical Composition
1
Distribution
1
Ecology
1
Ecosystems
1
Environment
1
Environmental Effects
1
Food Chains
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