Global dynamics of microbial competition for two resources with internal storage

Bingtuan Li, Hal Smith

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


We study a chemostat model that describes competition between two species for two essential resources based on storage. The model incorporates internal resource storage variables that serve the direct connection between species growth and external resource availability. Mathematical analysis for the global dynamics of the model is carried out by using the monotone dynamical system theory. It is shown that the limiting system of the model basically exhibits the familiar Lotka-Volterra alternatives: competitive exclusion, coexistence, and bi-stability, and most of these results can be carried over to the original model.

Original languageEnglish (US)
Pages (from-to)481-515
Number of pages35
JournalJournal Of Mathematical Biology
Issue number4
StatePublished - Oct 1 2007


  • Bi-stability
  • Chemostat
  • Coexistence
  • Competition
  • Competitive exclusion
  • Essential resources
  • Resource storage

ASJC Scopus subject areas

  • Modeling and Simulation
  • Agricultural and Biological Sciences (miscellaneous)
  • Applied Mathematics


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