耦合蓝藻的社会经济与生态动力学：单湖与网络动力学
Coupling the socio-economic and ecological dynamics of cyanobacteria: single lake and network dynamics
摘要：
近几十年来，淡水湖的人类活动有所增加。人类存在的一个常见副产品是富营养化，这很容易导致有害的蓝藻水华。在这项工作中，我们提出了一个模型，耦合相关的蓝藻系统的社会经济和生态动态。社会经济动力学考虑的是人口在是否减轻其污染水平方面所作的选择。这些选择基于与社会排斥、社会规范、环境问题和财政负担有关的各种成本。耦合模型表现出负的动态，一个稳定的状态对应于高缓解努力和低CB丰度，和其他低缓解努力和高CB丰度。此外，我们认为社会之间的互动网络的湖泊和目前的动态结果有关的各种相关成本和社会情况。在每种情况下，我们显示了合作水平和CB丰度之间的政权转移的潜力。社会排斥和压力被证明是导致这种政权更迭的驱动因素。
英文摘要：
In recent decades freshwater lakes have seen an increase in human presence. A common byproduct of this human presence is eutrophication, which readily results in harmful cyanobacteria blooms. In this work we propose a model that couples the socio-economic and ecological dynamics related to cyanobacteria systems. The socio-economic dynamics considers the choices a human population makes regarding whether or not to mitigate their pollution levels. These choices are based on various costs related to social ostracism, social norms, environmental concern and financial burden. The coupled model exhibits bistable dynamics, with one stable state corresponding to high mitigation efforts and low CB abundance, and the other to low mitigation efforts and high CB abundance. Furthermore, we consider social interactions among a network of lakes and present dynamic outcomes pertaining to various associated costs and social situations. In each case we show the potential for regime shifts between levels of cooperation and CB abundance. Social ostracism and pressure are shown to be driving factors in causing such regime shifts.
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