Shape Covariation (or the Lack Thereof) Between Vertebrae and Other Skeletal Traits in Felids: The Whole is Not Always Greater than the Sum of Parts

Evolutionary Biology
Marcela Randau, Anjali Goswami

Abstract

Within carnivorans, cats show comparatively little disparity in overall morphology, with species differing mainly in body size. However, detailed shape analyses of individual osteological structures, such as limbs or skulls, have shown that felids display significant morphological differences that correlate with their observed ecological and behavioural ranges. Recently, these shape analyses have been extended to the felid axial skeleton. Results demonstrate a functionally-partitioned vertebral column, with regions varying greatly in level of correlation between shape and ecology. Moreover, a clear distinction is evident between a phylogenetically-constrained neck region and a selection-responsive posterior spine. Here, we test whether this regionalisation of function reflected in vertebral column shape is also translated into varying levels of phenotypic integration between this structure and most other skeletal elements. We accomplish this comparison by performing pairwise tests of integration between vertebral and other osteological units, quantified with 3D geometric morphometric data and analysed both with and without phylogenetic correction. To our knowledge, this is the first study to test for integration across a compre...Continue Reading

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Citations

Jul 3, 2019·Proceedings of the National Academy of Sciences of the United States of America·Akinobu WatanabeAnjali Goswami
Nov 2, 2019·American Journal of Physical Anthropology·Mikel ArlegiAsier Gómez-Olivencia
Mar 15, 2019·BMC Evolutionary Biology·Camilo López-AguirreLaura A B Wilson
Sep 25, 2018·Evolution; International Journal of Organic Evolution·Ryan N FeliceAnjali Goswami
Jan 24, 2019·BMC Evolutionary Biology·Carla BarduaAnjali Goswami
Feb 23, 2019·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Camilo López-AguirreLaura A B Wilson
Dec 5, 2019·American Journal of Physical Anthropology·Miranda E Karban
Nov 24, 2020·Evolution; International Journal of Organic Evolution·Daniel RhodaMarion Segall
Dec 30, 2020·Journal of Anatomy·Camilo López-AguirreLaura A B Wilson
Dec 29, 2020·Evolution; International Journal of Organic Evolution·Jonathan A NationsJacob A Esselstyn
Oct 22, 2020·Evolution; International Journal of Organic Evolution·Margot MichaudAnne-Claire Fabre
Mar 4, 2021·Proceedings. Biological Sciences·Ryan D MarekKarl T Bates
Apr 28, 2021·Integrative and Comparative Biology·Daniel RhodaKenneth D Angielczyk

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