战略性游牧-殖民转换：随机噪声和沉降-恢复周期
Strategic nomadic-colonial switching: Stochastic noise and subsidence-recovery cycles
摘要：
在此之前，我们开发了一个人口模型，结合了Allee效应和周期性的环境波动，其中生物体在游牧和殖民行为之间交替。这种转换策略受生物钟〈动〉<动>和环境资源丰富度的调节，尽管两种行为都是个体损失的，但仍能导致种群的持续性。在本研究中，我们认为随机噪声模型代替原来的周期性的，从而允许更广泛的环境波动进行建模。的理论框架概括到占游牧和殖民地的子种群的资源枯竭，并提出了一个生态现实的人口规模依赖的转换计划。我们证明了修改后的开关计划的随机噪声的鲁棒性，我们还提出了有趣的连续沉降恢复周期内产生的种群动力学的可能性。我们的研究结果在生物和物理系统中具有相关性。
英文摘要：
Previously, we developed a population model incorporating the Allee effect and periodic environmental fluctuations, in which organisms alternate between nomadic and colonial behaviours. This switching strategy is regulated by biological clocks and the abundance of environmental resources, and can lead to population persistence despite both behaviours being individually losing. In the present study, we consider stochastic noise models in place of the original periodic ones, thereby allowing a wider range of environmental fluctuations to be modelled. The theoretical framework is generalized to account for resource depletion by both nomadic and colonial sub-populations, and an ecologically realistic population size-dependent switching scheme is proposed. We demonstrate the robustness of the modified switching scheme to stochastic noise, and we also present the intriguing possibility of consecutive subsidence-recovery cycles within the resulting population dynamics. Our results have relevance in biological and physical systems.
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