Darwin and Design in Phytolith Systematics: Morphometric Methods for Mitigating Redundancy
Darwin and Design in Phytolith Systematics: Morphometric Methods for Mitigating Redundancy
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DOI：
10.1007/978-1-4899-1155-1_13
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
I. Rovner;J. Russ
中科院分区：
文献类型：
--
作者：
I. Rovner;J. Russ
植硅体分类通常遵循达尔文之前的范例，以理想化或简化的模型、轶事的描述性命名和缺乏对个体差异的关注为标志。在这种情况下，冗余似乎是分类群识别中的一个问题。然而，植硅体产生的多态模式并不适合用于其他微化石分类的单形、类型学方法。最近的一些减少冗余的方法包括使用植硅体大小、频率和三维形状特征；来自体视学的额外形态特征提供了额外的方法来减少冗余。测试结果表明，这些方法(包括更多的个体差异度量)比中心趋势方法更稳健。
Phytolith classification has generally followed pre-Darwinian paradigms, marked by idealized or simplified models, anecdotal descriptive nomenclature and lack of attention to individual variation. In this context, redundancy has appeared to present a problem in taxon identification. However, the polymorphic mode of phytolith production does not fit well the monomorphic, typological approach used for classification of other microfossils. Some recent redundancy-reducing methods include use of phytolith size, frequency and three-dimensional shape characteristics; additional morphometric characteristics derived from stereology offer additional ways to reduce redundancy. Test results indicate that these methods (which include more measures of individual variation) are more robust than methods of central tendency.