Extinction in four species cyclic competition

Ben Intoy, Michel Pleimling

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

When four species compete stochastically in a cyclic way, the formation of two teams of mutually neutral partners is observed. In this paper we study through numerical simulations the extinction processes that can take place in this system both in the well mixed case as well as on different types of lattices. The different routes to extinction are revealed by the probability distribution of the domination time, i.e. the time needed for one team to fully occupy the system. If swapping is allowed between neutral partners, then the probability distribution is dominated by very long-lived states where a few very large domains persist, each domain being occupied by a mix of individuals from species that form one of the teams. Many aspects of the possible extinction scenarios are lost when only considering averaged quantities, such as for example the mean domination time.

Original languageEnglish (US)
Article numberP08011
JournalJournal of Statistical Mechanics: Theory and Experiment
Volume2013
Issue number8
DOIs
StatePublished - Aug 2013

Keywords

  • coarsening processes (theory)
  • game-theory (theory)
  • pattern formation (theory)
  • population dynamics (theory)

Fingerprint

Dive into the research topics of 'Extinction in four species cyclic competition'. Together they form a unique fingerprint.

Cite this