Fluctuating asymmetry in the honey bee, Apis mellifera: effects of ploidy and hybridization
Fluctuating asymmetry in the honey bee, Apis mellifera: effects of ploidy and hybridization
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蜜蜂的波动不对称性，Apis mellifera：倍性和杂交的影响
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
F. Bookstein
中科院分区：
文献类型：
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作者：
D. Smith;B. Crespi;F. Bookstein
我们提出了一种新的形态不对称性度量方法，它避免了在逐个字符分析大小或形状时固有的大多数统计问题。该方法是普罗克斯特分析的一种应用，它计算单个样本左侧和右侧地标构型的最佳拟合叠加。Procrstes方法将标志性配置的所有方面的细微偏差合并为一个净不对称分数。方向不对称性和波动不对称性在净平方和的简单划分中被分开，并且任何一个组成部分的几何细节都可以通过传统的地标多元统计分析方法来检查。
We present a new measure of morphological asymmetry that avoids most of the statistical problems inherent in character‐by‐character analysis of size or shape. The method is an application of Procrustes analysis, which computes best‐fitting super‐positions of configurations of landmarks to the left and right sides of a single specimen. The Procrustes method combines subtle deviations in all aspects of the landmark configuration into one net asymmetry score. Directional asymmetry is separated from fluctuating asymmetry in a simple partition of a net sum‐of‐squares, and geometrical details of either component can be inspected by traditional methods of multivariate statistical analysis of landmarks.