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首页> 外文期刊>Ecological Applications >Resolving environmental disputes: A statistical method for choosing among competing cluster models
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Resolving environmental disputes: A statistical method for choosing among competing cluster models

机译：解决环境纠纷：一种在竞争集群模型中进行选择的统计方法

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摘要

The protection of whole assemblages of species requires that such assemblages be identified in some nonarbitrary, quantitative manner. Clustering methods can be used to identify groups or clusters of observations (i.e., sites, transects, quadrats, etc.) on the basis of multivariate assemblage data, where each species is a variable. There are many kinds of cluster analyses, all potentially providing different outcomes, that is, different clusters of the multivariate observations. The wide choice of clustering methods and the necessarily subjective choice of which method and measure of similarity to use for a particular data set. is problematic. It can lead (and has led) to disputes about the way multivariate observations should be grouped, causing conflicts in making environmental decisions. We present a statistical test for choosing among competing cluster models and demonstrate its use with a case in point. The method provides an objective way to discriminate among competing models in order to determine the model that best fits the available data. Provided each party in a dispute identifies and articulates the cluster model it supports, the method can give a nonarbitrary judgment concerning the best model. This method provides an important tool for the resolution of environmental disputes concerning the presence of a particular community at a particular place and time, which may be impacted by a proposed development. [References: 52]
机译：保护整个物种的集合需要以某种非任意的，定量的方式识别这些集合。聚类方法可用于基于多元组合数据（其中每个物种均为变量）来识别观测值的组或簇（即位置，样面，四边形等）。聚类分析有很多种，所有这些都有可能提供不同的结果，即多元观测的不同聚类。聚类方法的广泛选择以及对于特定数据集使用哪种方法和相似性度量的必要主观选择。有问题。它可能导致（并且已经导致）关于多元观测结果应如何分组的争论，从而在制定环境决策时引起冲突。我们提供了一个统计测试，供您在竞争集群模型中进行选择，并举例说明其使用。该方法提供了一种客观的方法来区分竞争模型，以确定最适合可用数据的模型。只要争端的各方确定并阐明其支持的集群模型，该方法就可以给出关于最佳模型的非任意判断。这种方法为解决与特定社区在特定时间和地点存在有关的环境纠纷提供了重要工具，这可能会受到拟议开发的影响。 [参考：52]

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