Tail length estimation from sacrocaudal skeletal morphology in catarrhines
Tail length estimation from sacrocaudal skeletal morphology in catarrhines
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DOI：
10.1537/ase.120813
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发表时间：
2013-04-01
影响因子：
0.7
通讯作者：
Tojima, Sayaka
中科院分区：
文献类型：
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作者：
Tojima, Sayaka
灵长类动物尾部形态对解释功能适应和生殖发育具有重要意义。尾巴的长度可能是最显著的特征。建立可用的方法来预测灭绝灵长类动物的尾巴长度是重建灵长类动物进化，特别是人科动物进化的基础的一部分。以往的研究表明，骶骨形态往往预测尾巴的长度。然而，大多数以前的研究只尝试使用类别（短，长等）。这些研究的一个问题是短尾长度的范围很宽。因此，本研究旨在定量估计中间尾长的卡他鼻动物的尾长。对89只日本猕猴（Macaca fuscata）和台湾猕猴（Macaca cyclopis）杂交个体的骶骨和近端尾椎（第一至第三节）进行了测量。这些杂种猕猴受遗传控制，但它们的相对尾长变化很大（尾长/头长和体长= 18.8-88.8%），因此是获得估计卡他鼻猴尾长的一般回归公式的极好样本。共建立了15个预测模型，其中5个预测效果较好。这些公式的效用被证实应用于15种/亚种的卡他滨类群。
Tail morphology in primates is important for interpreting functional adaptation and phylogeny. Tail length is probably the most remarkable trait. Establishing usable methods to predict the tail length of extinct primates is part of the basis for the reconstruction of primate evolution, particularly of hominoids. Previous studies revealed that sacral morphology often predicts tail length. However, most previous studies have only attempted this by using categories (short, long, etc.). A problem with those studies is that the range of short tail length is wide. Accordingly, this study aimed to quantitatively estimate tail length in catarrhines with intermediate tail lengths. Sacra and proximal caudal vertebrae (first to third) of 89 hybrid individuals between Japanese macaque (Macaca fuscata) and Formosan rock macaque (Macaca cyclopis) were measured. These hybrid macaques were phylogenetically controlled but varied greatly in their relative tail length (tail length/head and body length = 18.8-88.8%), and thus were an excellent sample to obtain general regression formulae to estimate catarrhine tail length. A total of 15 predicting models were devised and five formulae performed well. The utility of these formulae were confirmed by application to 15 species/subspecies of catarrhine taxa.