Evidence for emergent behaviour in the community-scale dynamics of a fungal microcosm
Evidence for emergent behaviour in the community-scale dynamics of a fungal microcosm
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DOI：
10.1098/rspb.1999.0871
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发表时间：
1999-10-07
影响因子：
4.7
通讯作者：
Crawford, JW
中科院分区：
文献类型：
--
作者：
Bown, JL;Sturrock, CJ;Crawford, JW
提出了一种用于模拟两种真菌微观世界动态的随机元胞自动机。自动机中每个细胞的状态取决于预定义的邻域的状态，通过一组条件概率，这些条件概率来自于对物种的成对组合进行的实验。该模型进行了测试，详细的比较与大规模的实验微观世界。通过采用不同的假设，将成对数据与模型中的条件概率联系起来，探讨了社区中局部和非局部相互作用的性质。假设大规模的动态是一个独立的相互作用的结果，在当地的邻居种可以排除在5%的显着性水平。确定了相互依存关系的形式，并表明当地社区规模的相互作用的结果取决于社区规模的个人模式。因此，微观世界的动力学是相互作用的菌丝体系统的一种新特性，不能从孤立的成分研究中推断出来。
A stochastic cellular automaton for modelling the dynamics of a two-species fungal microcosm is presented. The state of each cell in the automaton depends on the state of a predefined neighbourhood via a set of conditional probabilities derived from experiments conducted on pairwise combinations of species. The model is tested by detailed comparison with larger-scale experimental microcosms. By employing different hypotheses which relate the pairwise data to the conditional probabilities in the model, the nature of the local and non-local interactions in the community is explored. The hypothesis that the large-scale dynamics are a consequence of independent interactions between species in a local neighbourhood can be excluded at the 5% significance level. The form of the interdependencies is determined and it is shown that the outcome of the interactions at the local neighbourhood-scale depends on the community-scale patterning of individuals. The dynamics of the microcosm are therefore an emergent property of the system of interacting mycelia that cannot be deduced from a study of the components in isolation.