A general model for mass-growth-density relations across tree-dominated communities

Karl J. Niklas, Jeremy J. Midgley, Brian Enquist

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

A general allometric scaling model predicts that plant body mass M T will scale as the -4/3 power of plant density N. Here, we show how this model predicts numerous other scaling attributes of plant populations and communities, including annual growth rate GT, standing leaf biomass ML, basal stem diameter D, and above- and below-ground biomass, MSH and MR. These predictions are consistent with the 'Law of Constant Yield' (i.e. productivity is independent of plant density). Analysis of worldwide databases for woody plant-dominated communities spanning seven orders of magnitude in MT and five orders of magnitude in N provides strong support of all of the model's predictions. Our model thus offers a theoretical basis for understanding and predicting the effects of crowding on plant size, growth and biomass partitioning across diverse ecological communities.

Original languageEnglish (US)
Pages (from-to)459-468
Number of pages10
JournalEvolutionary Ecology Research
Volume5
Issue number3
StatePublished - Mar 2003

Fingerprint

Biomass
Growth
plant density
plant community
prediction
belowground biomass
biomass
biomass allocation
power plants
Melanocyte-Stimulating Hormones
Power Plants
woody plant
Biota
woody plants
body mass
plant communities
stem
productivity
stems
Databases

Keywords

  • Allometry
  • Plant reproduction
  • Scaling
  • Self-thinning
  • Trees

ASJC Scopus subject areas

  • Ecology
  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Genetics(clinical)

Cite this

A general model for mass-growth-density relations across tree-dominated communities. / Niklas, Karl J.; Midgley, Jeremy J.; Enquist, Brian.

In: Evolutionary Ecology Research, Vol. 5, No. 3, 03.2003, p. 459-468.

Research output: Contribution to journalArticle

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