Using 3D ‐digital photogrammetry to examine scaling of the body axis in burrowing skinks,Journal of Morphology

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Using 3D ‐digital photogrammetry to examine scaling of the body axis in burrowing skinks
Journal of Morphology ( IF 1.5 ) Pub Date : 2020-08-20 , DOI: 10.1002/jmor.21253
Leah DeLorenzo ₁ , Abby Vander Linden ₂ , Philip J Bergmann ₃ , Gunter P Wagner ₄ , Cameron D Siler ₅ , Duncan J Irschick ₂

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Three‐dimensional (3D) modeling techniques have been increasingly utilized across disciplines for the visualization and analysis of complex structures. We employ 3D‐digital photogrammetry for understanding the scaling of the body axis of 12 species of scincid lizards in the genus Brachymeles. These skinks represent a diverse radiation which shows tremendous variation in body size and degree of axial elongation. Because of the complex nature of the body axis, 3D‐methods are important for understanding how the body axis evolves. 3D‐digital photogrammetry presents a flexible, inexpensive, and portable system for the reconstruction of biological forms. As body size increased among species, the cross‐sectional area and circumference of the head and other portions of the body axis increased isometrically, which indicates that species of differing sizes possess proportionally similar head and body shapes. These results suggest that there are no substantial head and body shape changes with body size among the sampled species, but further comparative studies with larger sample sizes and functional studies of size and morphology effects on burrowing or above‐ground locomotion are needed.

中文翻译：

使用 3D 数字摄影测量法检查穴居石龙子中身体轴的缩放比例

三维 (3D) 建模技术已越来越多地跨学科用于复杂结构的可视化和分析。我们采用 3D 数字摄影测量法来了解 Brachymeles 属中 12 种 scincid 蜥蜴的体轴缩放比例。这些石龙子代表了不同的辐射，显示出身体大小和轴向伸长程度的巨大变化。由于体轴的复杂性，3D 方法对于理解体轴如何演变很重要。3D 数字摄影测量为重建生物形态提供了一种灵活、廉价且便携的系统。随着物种之间体型的增加，头部的横截面积和周长以及体轴的其他部分等距增加，这表明不同大小的物种具有比例相似的头部和身体形状。这些结果表明，采样物种之间没有显着的头部和身体形状随体型变化，但需要更大样本量的进一步比较研究以及尺寸和形态对挖洞或地上运动的影响的功能研究。

更新日期：2020-08-20

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