Anatomy of a cladistic analysis
Anatomy of a cladistic analysis
复制标题
分支分析的剖析
作者：
N. Franz
回顾了突眼属复合体(鞘翅目：象甲总科：叶甲亚科)发表对象甲的形态分支分析的连续阶段，重点介绍了如何根据断断续续的系统发育见解逐步评估和完善早期的同源性评估。总共对进化特征矩阵的60个增量版本进行了浓缩和分析，首先是52个分类群和10个传统部署的诊断特征的集合，最后是90个分类群和143个特征，这些特征反映了对系统发育相似性和范围的更狭隘的评估。在整个分析过程中跟踪标准矩阵属性和分析树统计数据，并使用一系列不一致长度无差异测试来识别后续矩阵版本之间的拓扑变化临界点。这种简约的因应通常代表了个体内部和跨多个分支分析的个性个体化的推理过程。预期的长期结果是一个成熟的观察术语，其中同源的精确推断是简约的，而同源和简约的概念是密不可分的。这种分支特征个性化的偶然性观点与目前基于同源中性结构等价表达式开发表型本体的方法形成了对比。建议透明地接受支系同源的简约偶然性。
The sequential stages culminating in the publication of a morphological cladistic analysis of weevils in the Exophthalmus genus complex (Coleoptera: Curculionidae: Entiminae) are reviewed, with an emphasis on how early‐stage homology assessments were gradually evaluated and refined in light of intermittent phylogenetic insights. In all, 60 incremental versions of the evolving character matrix were congealed and analysed, starting with an assembly of 52 taxa and ten traditionally deployed diagnostic characters, and ending with 90 taxa and 143 characters that reflect significantly more narrow assessments of phylogenetic similarity and scope. Standard matrix properties and analytical tree statistics were traced throughout the analytical process, and series of incongruence length indifference tests were used to identify critical points of topology change among succeeding matrix versions. This kind of parsimony‐contingent rescoping is generally representative of the inferential process of character individuation within individual and across multiple cladistic analyses. The expected long‐term outcome is a maturing observational terminology in which precise inferences of homology are parsimony‐contingent, and the notions of homology and parsimony are inextricably linked. This contingent view of cladistic character individuation is contrasted with current approaches to developing phenotype ontologies based on homology‐neutral structural equivalence expressions. Recommendations are made to transparently embrace the parsimony‐contingent nature of cladistic homology.