Herbivory and warming have opposing short-term effects on plant-community nutrient levels across high-Arctic tundra habitats

• Authors: PETIT BON Matteo; BRATHEN Kari Anne; RAVOLAINEN Virve Tuulia; OTTAVIANI Gianluigi; BOHNER Hanna; JONSDOTTIR Ingibjorg Svala
• Year of publication: 2023
• Type: Article in Periodical
• Magazine / Source: Journal of Ecology
• MU Faculty or unit: Faculty of Science
• Web: https://doi.org/10.1111/1365-2745.14114
• Doi: http://dx.doi.org/10.1111/1365-2745.14114
• Keywords: biomass; herbivory; nitrogen; nutrient availability; nutrient cycling; perturbation; phosphorus; plant-herbivore interaction; soil moisture; vascular plant
• Description: 1. Environmental changes can rapidly alter standing biomass in tundra plant communities; yet, to what extent can they modify plant-community nutrient levels? Nutrient levels and their changes can affect biomass production, nutrient cycling rates and nutrient availability to herbivores. We examined how environmental perturbations alter Arctic plant-community leaf nutrient concentrations (percentage of dry mass, i.e. resource quality) and nutrient pools (absolute mass per unit area, i.e. resource quantity).

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