Tools for quantitative form description; an evaluation of different software packages for semi-landmark analysis

The challenging complexity of biological structures has led to the development of several methods for quantitative analyses of form. Bones are shaped by the interaction of historical (phylogenetic), structural, and functional constrains. Consequently, bone shape has been investigated intensively in...

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Main Authors: Léo Botton-Divet, Alexandra Houssaye, Anthony Herrel, Anne-Claire Fabre, Raphael Cornette
Format: Article
Language:English
Published: PeerJ Inc. 2015-11-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/1417.pdf
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author Léo Botton-Divet
Alexandra Houssaye
Anthony Herrel
Anne-Claire Fabre
Raphael Cornette
author_facet Léo Botton-Divet
Alexandra Houssaye
Anthony Herrel
Anne-Claire Fabre
Raphael Cornette
author_sort Léo Botton-Divet
collection DOAJ
description The challenging complexity of biological structures has led to the development of several methods for quantitative analyses of form. Bones are shaped by the interaction of historical (phylogenetic), structural, and functional constrains. Consequently, bone shape has been investigated intensively in an evolutionary context. Geometric morphometric approaches allow the description of the shape of an object in all of its biological complexity. However, when biological objects present only few anatomical landmarks, sliding semi-landmarks may provide good descriptors of shape. The sliding procedure, mandatory for sliding semi-landmarks, requires several steps that may be time-consuming. We here compare the time required by two different software packages (‘Edgewarp’ and ‘Morpho’) for the same sliding task, and investigate potential differences in the results and biological interpretation. ‘Morpho’ is much faster than ‘Edgewarp,’ notably as a result of the greater computational power of the ‘Morpho’ software routines and the complexity of the ‘Edgewarp’ workflow. Morphospaces obtained using both software packages are similar and provide a consistent description of the biological variability. The principal differences between the two software packages are observed in areas characterized by abrupt changes in the bone topography. In summary, both software packages perform equally well in terms of the description of biological structures, yet differ in the simplicity of the workflow and time needed to perform the analyses.
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spelling doaj.art-a75b0d9883514fb1a6453e87d42282ce2023-12-03T10:55:18ZengPeerJ Inc.PeerJ2167-83592015-11-013e141710.7717/peerj.1417Tools for quantitative form description; an evaluation of different software packages for semi-landmark analysisLéo Botton-Divet0Alexandra Houssaye1Anthony Herrel2Anne-Claire Fabre3Raphael Cornette4UMR 7179, Mécadev, Muséum National d’Histoire Naturelle, Centre National de la Recherche Scientifique, Paris, FranceUMR 7179, Mécadev, Muséum National d’Histoire Naturelle, Centre National de la Recherche Scientifique, Paris, FranceUMR 7179, Mécadev, Muséum National d’Histoire Naturelle, Centre National de la Recherche Scientifique, Paris, FranceAnimal Locomotion Laboratory, Department of Evolutionary Anthropology, Duke University, Durham, NC, USAUMR 7205, Institut de Systématique, Évolution, Biodiversité, Centre National de la Recherche Scientifique, Muséum National d’Histoire Naturelle, Université Pierre et Marie Curie, Ecole Publique des Hautes Études, Paris, FranceThe challenging complexity of biological structures has led to the development of several methods for quantitative analyses of form. Bones are shaped by the interaction of historical (phylogenetic), structural, and functional constrains. Consequently, bone shape has been investigated intensively in an evolutionary context. Geometric morphometric approaches allow the description of the shape of an object in all of its biological complexity. However, when biological objects present only few anatomical landmarks, sliding semi-landmarks may provide good descriptors of shape. The sliding procedure, mandatory for sliding semi-landmarks, requires several steps that may be time-consuming. We here compare the time required by two different software packages (‘Edgewarp’ and ‘Morpho’) for the same sliding task, and investigate potential differences in the results and biological interpretation. ‘Morpho’ is much faster than ‘Edgewarp,’ notably as a result of the greater computational power of the ‘Morpho’ software routines and the complexity of the ‘Edgewarp’ workflow. Morphospaces obtained using both software packages are similar and provide a consistent description of the biological variability. The principal differences between the two software packages are observed in areas characterized by abrupt changes in the bone topography. In summary, both software packages perform equally well in terms of the description of biological structures, yet differ in the simplicity of the workflow and time needed to perform the analyses.https://peerj.com/articles/1417.pdfGeometric morphometricsSliding semi-landmarkSoftware comparison
spellingShingle Léo Botton-Divet
Alexandra Houssaye
Anthony Herrel
Anne-Claire Fabre
Raphael Cornette
Tools for quantitative form description; an evaluation of different software packages for semi-landmark analysis
PeerJ
Geometric morphometrics
Sliding semi-landmark
Software comparison
title Tools for quantitative form description; an evaluation of different software packages for semi-landmark analysis
title_full Tools for quantitative form description; an evaluation of different software packages for semi-landmark analysis
title_fullStr Tools for quantitative form description; an evaluation of different software packages for semi-landmark analysis
title_full_unstemmed Tools for quantitative form description; an evaluation of different software packages for semi-landmark analysis
title_short Tools for quantitative form description; an evaluation of different software packages for semi-landmark analysis
title_sort tools for quantitative form description an evaluation of different software packages for semi landmark analysis
topic Geometric morphometrics
Sliding semi-landmark
Software comparison
url https://peerj.com/articles/1417.pdf
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AT anthonyherrel toolsforquantitativeformdescriptionanevaluationofdifferentsoftwarepackagesforsemilandmarkanalysis
AT anneclairefabre toolsforquantitativeformdescriptionanevaluationofdifferentsoftwarepackagesforsemilandmarkanalysis
AT raphaelcornette toolsforquantitativeformdescriptionanevaluationofdifferentsoftwarepackagesforsemilandmarkanalysis