Dynamical mechanism for coexistence of dispersing species

Mary Ann Harrison, Ying-Cheng Lai, Robert D. Holt

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Dispersal of organisms may play an essential role in the coexistence of species. Recent studies of the evolution of dispersal in temporally varying environments suggest that clones differing in dispersal rates can coexist indefinitely. In this work, we explore the mechanism permitting such coexistence for a model of dispersal in a patchy environment, where temporal heterogeneity arises from endogenous chaotic dynamics. We show that coexistence arises from an extreme type of intermittent behavior, namely the phenomenon known as o.-o. intermittency. In effect, coexistence arises because of an alternation between synchronized and de-synchronized dynamical behaviors. Our analysis of the dynamical mechanism for on-off intermittency lends strong credence to the proposition that chaotic synchronism may be a general feature of species coexistence, where competing species differ only in dispersal rate.

Original languageEnglish (US)
Pages (from-to)53-72
Number of pages20
JournalJournal of Theoretical Biology
Volume213
Issue number1
DOIs
StatePublished - Nov 7 2001

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Coexistence
Synchronization
Intermittency
Clone Cells
clones
organisms
Varying Environment
Competing Species
Alternation
Chaotic Dynamics
Clone
Dynamical Behavior
Proposition
Extremes

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Dynamical mechanism for coexistence of dispersing species. / Harrison, Mary Ann; Lai, Ying-Cheng; Holt, Robert D.

In: Journal of Theoretical Biology, Vol. 213, No. 1, 07.11.2001, p. 53-72.

Research output: Contribution to journalArticle

Harrison, Mary Ann ; Lai, Ying-Cheng ; Holt, Robert D. / Dynamical mechanism for coexistence of dispersing species. In: Journal of Theoretical Biology. 2001 ; Vol. 213, No. 1. pp. 53-72.
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