Abstract
We consider a Lotka-Volterra system of two competing species subject to multiplicative alpha-stable Lévy noise. The interaction parameter between the species is a random process which obeys a stochastic differential equation with a generalized bistable potential in the presence both of a periodic driving term and an additive alpha-stable Lévy noise. We study the species dynamics, which is characterized by two different regimes, exclusion of one species and coexistence of both. We find quasi-periodic oscillations and stochastic resonance phenomenon in the dynamics ofthe competing species, analysing the role of the Lévy noise sources.
Lingua originale | English |
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pagine (da-a) | 1-9 |
Numero di pagine | 9 |
Rivista | PHYSICAL REVIEW E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS |
Volume | 82 |
Stato di pubblicazione | Published - 2010 |
All Science Journal Classification (ASJC) codes
- ???subjectarea.asjc.3100.3109???
- ???subjectarea.asjc.2600.2613???
- ???subjectarea.asjc.3100.3104???