Department of Mathematics, Birla Institute of Technology and Science, Pilani 333031, India.
J Theor Biol. 2010 May 7;264(1):154-60. doi: 10.1016/j.jtbi.2010.01.026. Epub 2010 Jan 28.
In this study, an analytical method is introduced for the identification of predator-prey populations time-dependent evolution in a Lotka-Volterra predator-prey model which takes into account the concept of accelerated-predator-satiety. Oppositely to most of the predator-prey problem models, the actual model does not suppose that the predation is strictly proportional to the prey density. In reference to some recent experimental results and particularly to the conclusions of May (1973) about predators which are 'never not hungry', an accelerated satiety function is matched with the initial conventional equations. Solutions are plotted and compared to some relevant ones. The obtained trends are in good agreement with many standard Lotka-Volterra solutions except for the asymptotic behaviour.
在本研究中,引入了一种分析方法,用于识别考虑加速捕食者饱食概念的 Lotka-Volterra 捕食者-猎物模型中捕食者-猎物种群的时变演化。与大多数捕食者-猎物问题模型相反,实际模型并不假设捕食与猎物密度严格成比例。参考一些最近的实验结果,特别是 May(1973)关于“从不不饥饿”的捕食者的结论,将加速饱食函数与初始常规方程匹配。绘制解决方案并将其与一些相关解决方案进行比较。得到的趋势与许多标准的 Lotka-Volterra 解决方案一致,除了渐近行为。