Herbivores in Arctic ecosystems: Effects of climate change and implications for carbon and nutrient cycling

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Abstract

Arctic terrestrial herbivores influence tundra carbon and nutrient dynamics through their consumption of resources, waste production, and habitat-modifying behaviors. The strength of these effects is likely to change spatially and temporally as climate change drives shifts in herbivore abundance, distribution, and activity timing. Here, we review how herbivores influence tundra carbon and nutrient dynamics through their consumptive and nonconsumptive effects. We also present evidence for herbivore responses to climate change and discuss how these responses may alter the spatial and temporal distribution of herbivore impacts. Several current knowledge gaps limit our understanding of the changing functional roles of herbivores; these include limited characterization of the spatial and temporal variability in herbivore impacts and of how herbivore activities influence the cycling of elements beyond carbon. We conclude by highlighting approaches that will promote better understanding of herbivore effects on tundra ecosystems, including their integration into existing biogeochemical models, new applications of remote sensing techniques, and the continued use of distributed experiments.

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APA

Koltz, A. M., Gough, L., & McLaren, J. R. (2022, October 1). Herbivores in Arctic ecosystems: Effects of climate change and implications for carbon and nutrient cycling. Annals of the New York Academy of Sciences. John Wiley and Sons Inc. https://doi.org/10.1111/nyas.14863

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