Biological stoichiometry of plant production: Metabolism, scaling and ecological response to global change

James Elser, W. F. Fagan, A. J. Kerkhoff, N. G. Swenson, B. J. Enquist

Research output: Contribution to journalArticle

377 Citations (Scopus)

Abstract

Biological stoichiometry theory considers the balance of multiple chemical elements in living systems, whereas metabolic scaling theory considers how size affects metabolic properties from cells to ecosystems. We review recent developments integrating biological stoichiometry and metabolic scaling theories in the context of plant ecology and global change. Although vascular plants exhibit wide variation in foliar carbon: nitrogen: phosphorus ratios, they exhibit a higher degree of 'stoichiometric homeostasis' than previously appreciated. Thus, terrestrial carbon: nitrogen: phosphorus stoichiometry will reflect the effects of adjustment to local growth conditions as well as species' replacements. Plant stoichiometry exhibits size scaling, as foliar nutrient concentration decreases with increasing plant size, especially for phosphorus. Thus, small plants have lower nitrogen: phosphorus ratios. Furthermore, foliar nutrient concentration is reflected in other tissues (root, reproductive, support), permitting the development of empirical models of production that scale from tissue to whole-plant levels. Plant stoichiometry exhibits large-scale macroecological patterns, including stronger latitudinal trends and environmental correlations for phosphorus concentration (relative to nitrogen) and a positive correlation between nutrient concentrations and geographic range size. Given this emerging knowledge of how plant nutrients respond to environmental variables and are connected to size, the effects of global change factors (such as carbon dioxide, temperature, nitrogen deposition) can be better understood.

Original languageEnglish (US)
Pages (from-to)593-608
Number of pages16
JournalNew Phytologist
Volume186
Issue number3
DOIs
StatePublished - May 2010

Fingerprint

stoichiometry
global change
metabolism
Phosphorus
phosphorus
Nitrogen
nitrogen
nutrient content
Food
biological development
chemical elements
plant ecology
Carbon
carbon
vascular plants
homeostasis
Ecology
carbon dioxide
Carbon Dioxide
Ecosystem

Keywords

  • Biological stoichiometry
  • Carbon
  • Global change
  • Growth rate
  • Metabolic scaling
  • Nitrogen
  • Phosphorus
  • Plant size

ASJC Scopus subject areas

  • Plant Science
  • Physiology

Cite this

Biological stoichiometry of plant production : Metabolism, scaling and ecological response to global change. / Elser, James; Fagan, W. F.; Kerkhoff, A. J.; Swenson, N. G.; Enquist, B. J.

In: New Phytologist, Vol. 186, No. 3, 05.2010, p. 593-608.

Research output: Contribution to journalArticle

Elser, James ; Fagan, W. F. ; Kerkhoff, A. J. ; Swenson, N. G. ; Enquist, B. J. / Biological stoichiometry of plant production : Metabolism, scaling and ecological response to global change. In: New Phytologist. 2010 ; Vol. 186, No. 3. pp. 593-608.
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