Diversification of Nitrogen Sources in Various Tundra Vegetation Types in the High Arctic

  title={Diversification of Nitrogen Sources in Various Tundra Vegetation Types in the High Arctic},
  author={G. Skrzypek and B. Wojtun and D. Richter and D. Jakubas and K. Wojczulanis-Jakubas and A. Samecka-Cymerman},
  journal={PLoS ONE},
Low nitrogen availability in the high Arctic represents a major constraint for plant growth, which limits the tundra capacity for carbon retention and determines tundra vegetation types. The limited terrestrial nitrogen (N) pool in the tundra is augmented significantly by nesting seabirds, such as the planktivorous Little Auk (Alle alle). Therefore, N delivered by these birds may significantly influence the N cycling in the tundra locally and the carbon budget more globally. Moreover, should… Expand
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