Gamarra Javier G P, Solé Ricard V
Complex Systems Research Group, Department of Physics FEN, Universitat Politècnica de Catalunya, Campus Nord, Mòdul B4-B5, 08034 Barcelona, Spain.
Bull Math Biol. 2002 May;64(3):611-20. doi: 10.1006/bulm.2002.0286.
Nonoverlapping generations have been classically modelled as difference equations in order to account for the discrete nature of reproductive events. However, other events such as resource consumption or mortality are continuous and take place in the within-generation time. We have realistically assumed a hybrid ODE bidimensional model of resources and consumers with discrete events for reproduction. Numerical and analytical approaches showed that the resulting dynamics resembles a Ricker map, including the doubling route to chaos. Stochastic simulations with a handling-time parameter for indirect competition of juveniles may affect the qualitative behaviour of the model.
非重叠世代传统上被建模为差分方程，以考虑繁殖事件的离散性质。然而，其他事件，如资源消耗或死亡率是连续的，并且发生在代内时间内。我们实际假设了一个资源和消费者的混合常微分方程二维模型，其中繁殖事件是离散的。数值和分析方法表明，由此产生的动力学类似于里克映射，包括通向混沌的倍周期分岔。带有幼体间接竞争处理时间参数的随机模拟可能会影响模型的定性行为。
