KEYWORDS: Data modeling, Ecosystems, Diseases and disorders, Differential equations, Temperature metrology, Modeling, Injuries, Computer simulations, Analytical research
To better understand the significance of lampreys in the ecosystem, we developed a model of the lamprey-trout ecosystem based on Lake Superior. We introduced sex ratio and growth potential based on the physiological characteristics of lampreys, and improved the traditional Lotka-Volterra model by considering climate change, species migration, and disease transmission. Simulating the above model in a diverse ecosystem, it was found that lampreys with sex ratio can survive better in the ecosystem and bring greater resistance stability as well as resilience stability to the external environment after a disaster occurs, and once it is lost, its reproduction rate and predatory activities will be affected. The population size of the ecosystem will be drastically reduced, which will also lead to a decrease in the stability of the ecosystem.
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