2010 Annual Meeting of the Ecological Society of America

Linking stoichiometric homeostasis with ecosystem structure, functioning, and stability

Abstract

Ecosystem structure, functioning, and stability have been a focus of ecological and environmental sciences during the past two decades. The mechanisms underlying their relationship, however, are not well understood. Based on comprehensive studies in Inner Mongolia grassland, here we show that species-level stoichiometric homeostasis was consistently positively correlated with dominance and stability on both 2-year and 27-year temporal scales and across a 1200-km spatial transect. At the community level, stoichiometric homeostasis was also positively correlated with ecosystem function and stability in most cases. Thus, homeostatic species tend to have high and stable biomass; and ecosystems dominated by more homeostatic species have higher productivity and greater stability. By modulating organism responses to key environmental drivers, stoichiometric homeostasis appears to be a major mechanism responsible for the structure, functioning, and stability of grassland ecosystems.

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Correspondence to Qiang Yu.

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Yu, Q., Chen, Q., Elser, J. et al. Linking stoichiometric homeostasis with ecosystem structure, functioning, and stability. Nat Prec (2010). https://doi.org/10.1038/npre.2010.5255.1

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Keywords

  • Ecological stoichiometry
  • ecosystem services
  • species traits
  • Biodiversity
  • Inner Mongolia grassland

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