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The survival analysis of a stochastic Lotka-Volterra competition model with a coexistence equilibrium
- Source :
- Mathematical Biosciences and Engineering, Vol 16, Iss 4, Pp 2717-2737 (2019)
- Publication Year :
- 2019
- Publisher :
- AIMS Press, 2019.
-
Abstract
- In this paper, we propose and analyze a two-species Lotka-Volterra competition model with random perturbations that relate to the inter-specific competition rates and the coexistence equilibrium of the corresponding deterministic system. The stochasticity in inter-specific competition (between species) is more important than that in intra-specific competition (within species). We pose two assumptions and then obtain su cient conditions for coexistence and for competitive exclusion respectively, and find that small random perturbations will not destroy the dynamic behaviors of the corresponding deterministic system. Moreover, if one species goes extinct, the convergence rate to zero is obtained by investigating the Lyapunov exponent. Finally, we provide several numerical examples to illustrate our mathematical results.
Details
- Language :
- English
- ISSN :
- 15510018
- Volume :
- 16
- Issue :
- 4
- Database :
- Directory of Open Access Journals
- Journal :
- Mathematical Biosciences and Engineering
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.5751a47dd7f14ac9b780cd787dca2c93
- Document Type :
- article
- Full Text :
- https://doi.org/10.3934/mbe.2019135?viewType=HTML