克隆植物的演化博弈研究  

The Evolutionary Game Study on a Clonal Plant Spartina Alterniflora Loisel

作　　者：杜莎[1] 韩定定[1] 李德志[1] 

机构地区：[1]华东师范大学信息科学技术学院,上海200241

出　　处：《复杂系统与复杂性科学》2016年第1期95-101,共7页Complex Systems and Complexity Science

基　　金：国家自然科学基金(11075057)

摘　　要：基于复杂网络理论构建包含等级生长单位的互花米草克隆植株多重关系网络,分析该网络结构,获取了互花米草的生长特征及其株丛间彼此回避竞争的生态学策略。将囚徒困境演化博弈模型引入互花米草克隆植株多重关系网络,通过对网络上演化博弈现象的刻画,展现了按照不同的规则选取网络中的合作节点时网络的特征:随机均匀选取初始合作节点时,合作频率随着背叛诱惑值的增加逐渐下降;选择不同类型的生物体单位为初始合作节点,选取株丛间根状茎间隔点,演化博弈到达稳态时,合作者的比例随着背叛诱惑值的增加而逐渐减小,这意味着根状茎节点为互花米草生长的关键节点。This paper constructs the empirical network of the clonal plant multiple relation treelike networks based on the spatial configuration of Spartina alterniflora to explore the evolutionary game characteristics.First,we study the structure properties of Spartina alterniflora,which reflect the ecological strategy that avoiding competition between each other.Second,the model of the evolutionary Prisoner＇s Dilemma game is introduced into the Spartina alterniflora treelike network.Initially,the distribution of strategies among the nodes in the network obeys two different rules：distributed randomly,with fcdecreasing with the increasing of b,in accordance with different types of Spartina alterniflora biological units,the rhizome nodes between the neighboring bunches play an important role.

关 键 词：克隆植物 多重关系网络 演化博弈模型 囚徒困境 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]