Contrasting Responses of Nitrogen-Fixation in Arctic Lichens to Experimental and Ambient Nitrogen and Phosphorus Availability

We investigated the influence of nitrogen (N) and phosphorus (P) on N2-fixation and abundance of two of the most common N2-fixing arctic lichens, Peltigera aphthosa and P. polydactyla, in two common moist upland tundra types, acidic and non-acidic tundra, at Toolik Lake, Alaska. Acidic tundra has hi...

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Veröffentlicht in:	Arctic, antarctic, and alpine research antarctic, and alpine research, 2005-08, Vol.37 (3), p.396-401
Hauptverfasser:	Weiss, Marissa, Hobbie, Sarah E, Gettel, Gretchen M
Format:	Artikel
Sprache:	eng
Schlagworte:	Alkynes cold zones Ecophysiology Fertilization Freshwater ecosystems Lichens Marine ecosystems Nitrogen nitrogen fertilizers Nitrogen fixation nutrient availability Peltigera aphthosa Peltigera polydactyla Phosphorus phosphorus fertilizers s soil pH tundra soils Tundras vegetation cover
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