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Inferring the Nature of Allometry from Geometric Data

Kim van der Linde, David Houle
2009 Evolutionary biology  
in geometric morphometric data.  ...  The pattern of variation inferred by means of our superimposition techniques can be quite different from that recovered from full generalized Procrustes superimposition.  ...  in geometric morphometric data.  ... 
doi:10.1007/s11692-009-9061-z fatcat:2uea533dinfrvfrl5jwheldixm

SEPARATING SIZE FROM ALLOMETRY: ANALYSIS OF LOWER JAW MORPHOLOGY IN THE FOX SQUIRREL, SCIURUS NIGER

Donald L. Swiderski
2003 Journal of Mammalogy  
Jaw morphologies were quantified using traditional distance measurements and geometric shape variables computed from landmark coordinates. The same analyses were performed on each data set.  ...  The same analysis on the coordinate data found that allometry accounts for Ͻ50% of the ontogenetic variation in shape.  ...  -Allometric patterns of Sciurus niger jaw inferred from the geometric data set by regression of shape variables computed from landmark coordinates on centroid size.  ... 
doi:10.1644/brb-025 fatcat:cz4sylbyyfgmfi6scodfwaradi

Observation of mammalian similarity through allometric scaling laws

Valery B Kokshenev
2003 Physica A: Statistical Mechanics and its Applications  
We discuss the problem of observation of natural similarity in skeletal evolution of terrestrial mammals.  ...  This remains too far from the mammalian allometric exponent λ ^()=0.80± 0.2, recently revised by Christiansen, that is a chief puzzle in long bone allometry.  ...  Acknowledgments The author is grateful to student Garcia J.M.G. for helpful discussions of the biological literature. Financial support by the CNPq is also acknowledged.  ... 
doi:10.1016/s0378-4371(02)01923-4 fatcat:ztjrx4b2bjgzzcma2ir5rrdo3e

Body dimensions of the extinct giant shark Otodus megalodon: a 2D reconstruction

Jack A. Cooper, Catalina Pimiento, Humberto G. Ferrón, Michael J. Benton
2020 Scientific Reports  
Finding no evidence of allometry, we made morphological extrapolations to infer body dimensions of †O. megalodon at different sizes.  ...  Inferring the size of extinct animals is fraught with danger, especially when they were much larger than their modern relatives. Such extrapolations are particularly risky when allometry is present.  ...  Fox for providing images and data; J. Cunningham, J. Ives, C. Kunz, T. Lewis and S. Pimiento for software assistance; J. Griffin for helpful discussion of the methodology; and O.  ... 
doi:10.1038/s41598-020-71387-y pmid:32883981 fatcat:yxvvbgdgvzfvvasezcjul3khle

Long-Bone Allometry of Terrestrial Mammals and the Geometric-Shape and Elastic-Force Constraints of Bone Evolution [article]

V. B. Kokshenev, J. K. L. Silva, G. J. M. Garcia
2003 arXiv   pre-print
We discuss the long-standing problem of mammalian bone allometry commonly studied in terms of the so-called "geometric", "elastic", and "static stress" similarities by McMahon (1973, 1975a, 1975b).  ...  A natural similarity in body dimensions of terrestrial animals noticed by ancient philosophers remains the main key to the problem of mammalian skeletal evolution with body mass explored in theoretical  ...  and Carter 1989 , we have demonstrated a natural property of elasticity of bones, similar to the geometric-shape similarity, in a certain way does not depend on details of the local bone geometry and  ... 
arXiv:physics/0303074v1 fatcat:kfyrc2kwxzfkphdx7vhx54liyi

Scale Effects between Body Size and Limb Design in Quadrupedal Mammals

Brandon M. Kilbourne, Louwrens C. Hoffman, Alistair Robert Evans
2013 PLoS ONE  
When scaled against body mass, forelimb inertial properties, apart from mass, scale with positive allometry.  ...  Limb length increases disproportionately with body mass via positive allometry (length / body mass 0.40 ); the positive allometry of limb length may help explain the scaling of the metabolic cost of transport  ...  For access to specimens and use of facilities at the Field Museum of Natural History, we sincerely thank Bill Stanley, Tracy Damitz, Lawrence Heaney, and Michi Schulenburg (Division of Mammals) and Thomas  ... 
doi:10.1371/journal.pone.0078392 pmid:24260117 pmcid:PMC3832634 fatcat:z5vlk4sotbh5titfv7k442rnvi

Assessment of a Takagi–Sugeno-Kang fuzzy model assembly for examination of polyphasic loglinear allometry

Hector A. Echavarria-Heras, Juan R. Castro-Rodriguez, Cecilia Leal-Ramirez, Enrique Villa-Diharce
2020 PeerJ  
The traditional allometric analysis relies on log- transformation to contemplate linear regression in geometrical space then retransforming to get Huxley's model of simple allometry.  ...  Conclusions Offered scheme bears reliable analysis of zero intercept allometries based on geometrical space protocols.  ...  De Robertis for data sharing.  ... 
doi:10.7717/peerj.8173 pmid:31934498 pmcid:PMC6951296 fatcat:ozlytipucnaqjjjnr7exjhq6xm

Phylogeny, phylogenetic inference, and cranial evolution in pitheciids andAotus

Alexander Bjarnason, Christophe Soligo, Sarah Elton
2016 American Journal of Primatology  
any format or medium without the formal permission of the copyright holders.  ...  provided that: • a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in  ...  In this paper, we examine the evolutionary relationships and phylogenetic signal of pitheciids 175 and Aotus based on geometric morphometric data from the cranium.  ... 
doi:10.1002/ajp.22621 pmid:27869316 fatcat:hgqu76qqgnf45mffq2c4u7ehdy

Size, shape, and form: concepts of allometry in geometric morphometrics

Christian Peter Klingenberg
2016 Development, Genes and Evolution  
This concept of allometry is implemented in geometric morphometrics through the multivariate regression of shape variables on a measure of size.  ...  In this framework, allometric trajectories are characterized by the first principal component, which is a line of best fit to the data points.  ...  Simon Lovell provided advice from the perspective of structural biology. I thank the members of my lab and two anonymous reviewers for their comments.  ... 
doi:10.1007/s00427-016-0539-2 pmid:27038023 pmcid:PMC4896994 fatcat:gvdur3c4ivgidjjxm7uhtjsuta

Relationships among ontogenetic, static, and evolutionary allometry

James M. Cheverud
1982 American Journal of Physical Anthropology  
Extrapolation from intra-or interspecific phenotypic allometry to evolutionary allometry is shown to depend on the similarity of genetic and phenotypic allometry patterns.  ...  Extrapolation from relative size relationships in adults to relative growth in ontogeny depends on the variability of slopes and intercepts of ontogenetic vectors relative to variability in length of the  ...  ACKNOWLEDGMENTS I thank William Atchley and Larry Cochard for their helpful comments on an earlier draft of this paper.  ... 
doi:10.1002/ajpa.1330590204 pmid:7149015 fatcat:azkhy4dypbenbl6nk4t2iv3dgi

Vomers aren't so different in crown group birds when considering allometric effects

Andrew Farke
2021 Peer Community in Paleontology  
A previous paper (Hu et al., 2019) used 3D geometric morphometrics to compare the shape of the vomer across neognaths and palaeognaths.  ...  Although both groups of birds show cranial kinesis, neognaths exhibit a much more pronounced degree of kinesis versus palaeognaths, due in part to the tighter nature of the palaeognath pterygoid/palatine  ... 
doi:10.24072/pci.paleo.100007 fatcat:3yyvanbsvjb2po5uvhb52atbbm

Long-bone allometry of terrestrial mammals and the geometric-shape and elastic-force constraints of bone evolution

V.B. Kokshenev, J.K.L. Silva, G.J.M. Garcia
2003 Journal of Theoretical Biology  
and Carter 1989 , we have demonstrated a natural property of elasticity of bones, similar to the geometric-shape similarity, in a certain way does not depend on details of the local bone geometry and  ...  Generally speaking, elastic-force mammalian similarity suggests that there exists a unique mechanism, attributed to the natural elasticity of the bones of adult animals, that provides an escape from the  ... 
doi:10.1016/s0022-5193(03)00190-5 pmid:12957126 fatcat:7k6jdizzsbafvkitt3av35tmau

Interspecific comparison of allometry between body weight and chest girth in domestic bovids

Hiroki Anzai, Kazato Oishi, Hajime Kumagai, Eiji Hosoi, Yoshitaka Nakanishi, Hiroyuki Hirooka
2017 Scientific Reports  
To make inferences regarding the evolved responses in allometry to natural and artificial selection, we compared allometric parameters (slope and intercept) among seven species and breeds of domestic bovids  ...  The sizes of body parts often co-vary through exponential scaling, known as allometry. The evolution of allometry is central to the generation of morphological diversity.  ...  Acknowledgements This study was supported by a Grant-in-Aid for Scientific Research (B) (Grant number: 24405041) from the Japan Society for the Promotion of Science.  ... 
doi:10.1038/s41598-017-04976-z pmid:28684855 pmcid:PMC5500593 fatcat:x5qhrydpg5dhjlebpk6c4swvwa

Novel approach to heritability detection suggests robustness to paternal genotype in a complex morphological trait

Max E. Winston, Andrea Thompson, Gabriel Trujillo, Andrew T. Burchill, Corrie S. Moreau
2017 Ecology and Evolution  
We recommend this method for leveraging the increased resolution of GM data to explore and understand heritable morphological variation in nonmodel organisms.  ...  In order to exploit the features of this organismal system, we generated a large genetic and morphological dataset and applied our new method that employs geometric morphometrics (GM) to detect the heritability  ...  GT generated genetic data and inferred patrilines. AB generated genetic data and inferred patrilines.  ... 
doi:10.1002/ece3.2932 pmid:28649331 pmcid:PMC5478049 fatcat:f5t5bjy6jzbovay46z3to6okj4

Geometric morphometric analysis of allometric variation in the mandibular morphology of the hominids of Atapuerca, Sima de los Huesos site

Antonio Rosas, Markus Bastir
2004 The Anatomical Record  
Procrustes-based geometric morphometrics of 20 two-dimensional (2D) landmarks were analyzed by multivariate regressions of shape on size in samples from 121 humans, 48 chimpanzees, and 50 gorillas (all  ...  Allometry is an important factor of morphological integration that contributes to the organization of the phenotype and its variation.  ...  From a methodological viewpoint, Procrustes-based geometric morphometry of landmark data is an ideal tool for the analysis of allometry, for two reasons (Bookstein, 1991) : First, landmarks can be used  ... 
doi:10.1002/ar.a.20049 pmid:15164343 fatcat:tcj4zee4vbafzfnaak5psavg2u
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