Feedbacks between nutrient cycling and vegetation predict plant species coexistence and invasion

Takeshi Miki, Michio Kondoh

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

To investigate the role of species-specific litter decomposability in determining plant community structure, we constructed a theoretical model of the codevelopmental dynamics of soil and vegetation. This model incorporates feedback between vegetation and soil. Vegetation changes the nutrient conditions of soil by affecting mineralization processes; soil, in turn, has an impact on plant community structure. The model shows that species-level traits (decomposability, reproductive and competitive abilities) determine whether litter feedback effects are positive or negative. The feedback determines community-level properties, such as species composition and community stability against invasion. The model predicts that positive feedback may generate multiple alternative steady states of the plant community, which differ in species richness or community composition. In such cases, the realized state is determined by initial abundance of co-occurring species. Further, the model shows that the importance of species-level traits depends on environmental conditions such as system fertility.

Original languageEnglish
Pages (from-to)624-633
Number of pages10
JournalEcology Letters
Volume5
Issue number5
DOIs
Publication statusPublished - 2002 Sep
Externally publishedYes

Keywords

  • Decomposition
  • Litter feedback
  • Litter quality
  • Species-level effects on material cycling

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

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