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Aerial Nitrogen Deposition
Animal-derived Nitrogen
1
Arctic Plants
1
Atmospheric Ammonia
1
Carbon
1
Deposition
1
Ecological Implications
1
Ecology
1
Mirounga-leonina
1
N-15 Natural Abundance
1
Penguin
1
Plant Nitrogen Sources
1
Seabird Rookeries
1
Soil-nitrogen
1
Southern Elephant Seals
1
Subantarctic
1
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