Abstract

Evolutionary games of cyclic competitions have been extensively studied to gain insights into one of the most fundamental phenomena in nature: biodiversity that seems to be excluded by the principle of natural selection. The Rock-Paper-Scissors (RPS) game of three species and its extensions [e.g., the Rock-Paper-Scissors-Lizard-Spock (RPSLS) game] are paradigmatic models in this field. In all previous studies, the intrinsic symmetry associated with cyclic competitions imposes a limitation on the resulting coexistence states, leading to only selective types of such states. We investigate the effect of nonuniform intraspecific competitions on coexistence and find that a wider spectrum of coexistence states can emerge and persist. This surprising finding is substantiated using three classes of cyclic game models through stability analysis, Monte Carlo simulations and continuous spatiotemporal dynamical evolution from partial differential equations. Our finding indicates that intraspecific competitions or alternative symmetry-breaking mechanisms can promote biodiversity to a broader extent than previously thought.

Original languageEnglish (US)
Article number7465
JournalScientific Reports
Volume7
Issue number1
DOIs
StatePublished - Dec 1 2017

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games
biological diversity
lizards
rocks
partial differential equations
broken symmetry
symmetry
simulation

ASJC Scopus subject areas

  • General

Cite this

Emergence of unusual coexistence states in cyclic game systems. / Park, Junpyo; Do, Younghae; Jang, Bongsoo; Lai, Ying-Cheng.

In: Scientific Reports, Vol. 7, No. 1, 7465, 01.12.2017.

Research output: Contribution to journalArticle

Park, Junpyo ; Do, Younghae ; Jang, Bongsoo ; Lai, Ying-Cheng. / Emergence of unusual coexistence states in cyclic game systems. In: Scientific Reports. 2017 ; Vol. 7, No. 1.
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