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Using 3D ‐digital photogrammetry to examine scaling of the body axis in burrowing skinks
Author(s) -
DeLorenzo Leah,
Vander Linden Abby,
Bergmann Philip J.,
Wagner Gunter P.,
Siler Cameron D.,
Irschick Duncan J.
Publication year - 2020
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.21253
Subject(s) - biology , photogrammetry , anatomy , scaling , circumference , body weight , zoology , evolutionary biology , geometry , computer science , computer vision , mathematics , endocrinology
Abstract 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.