Chaos in eco-epidemiological problem of the Salton Sea and its possible control. (English) Zbl 1131.92070
Summary: The Salton sea, which is located in the southeast desert of California, came into the limelight due to deaths of fish and fish catching birds on a massive scale. J. Chattopadhyay and N. Bairagi [Pelicans at risk in Salton sea – an eco-epidemiological model. Ecol. Model. 136, 103–112 (2001)] proposed and analysed an eco-epidemiological model for the Salton sea. We modified their model by taking into account the bilinear mass action incidence rate and performed extensive numerical simulations. Our studies show that the system exhibits chaotic dynamics when some key parameters attain their critical values. We tried to explain the unusual deaths of fish and fish eating birds in the Salton sea using the simulation results. We also suggested some possible measures to avoid chaos in such natural systems.
MSC:
| 92D40 | Ecology |
| 65C20 | Probabilistic models, generic numerical methods in probability and statistics |
| 37D45 | Strange attractors, chaotic dynamics of systems with hyperbolic behavior |
| 37N25 | Dynamical systems in biology |
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