Combining geometric morphometric analyses of multiple 2D observation views improves interpretation of evolutionary allometry and shape diversification in monitor lizard (Varanus) crania

dc.contributor.authorOpenshaw, Gabrielle
dc.contributor.authorD’amore, Domenic
dc.contributor.authorVidal-Garcia, Marta
dc.contributor.authorKeogh, J. Scott
dc.date.accessioned2021-05-25T01:33:05Z
dc.date.issued2017
dc.date.updated2020-11-23T10:19:50Z
dc.description.abstractGeometric morphometrics is a powerful tool for the quantification, visualization and analysis of morphological variation and change. This approach is being applied more frequently in a phylogenetic comparative context to assess the relative influence of size, ecology, function, and developmental constraints on morphological evolution. Geometric morphometric methods rely on homologous landmarks as the source of shape data, and the level of detail and accuracy increases with the amount of information contained in a landmark configuration. It may be possible, however, to capture particular elements of shape variation by concentrating on different observation angles of a complex structure like the vertebrate cranium. Our study examines how observation view (dorsal, ventral and lateral) influences 2D geometric morphometric analysis of interspecific cranial shape variation in monitor lizards. We recover a strong phylogenetic signal in all three views and general concordance in patterns of size-corrected shape diversification within the genus. We also find subtle, but important differences, however, among views in analyses of evolutionary allometry and shape variation, which may reflect both landmark configuration design and adaptive functional trends of the study system. Our study shows that studies restricted to a 2D geometric morphometric analysis of a complex 3D biological structure can combine carefully designed 2D landmark configurations describing alternative planes to maximize shape coverage.en_AU
dc.description.sponsorshipJSK thanks the Australian Research Council for ongoing support.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0024-4066en_AU
dc.identifier.urihttp://hdl.handle.net/1885/233766
dc.language.isoen_AUen_AU
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/20576..."The Accepted Version can be archived in a Non-Commercial Institutional Repository. 12 months embargo" from SHERPA/RoMEO site (as at 2/06/2021). This is a pre-copyedited, author-produced version of an article accepted for publication in [Biological Journal of the Linnean Society] following peer review. The version of record [Openshaw, Gabrielle H., et al. "Combining geometric morphometric analyses of multiple 2D observation views improves interpretation of evolutionary allometry and shape diversification in monitor lizard (Varanus) crania." Biological Journal of the Linnean Society 120.3 (2017): 539-552.] is available online at: https://dx.doi.org/10.1111/bij.12899.
dc.publisherLinnean Society of Londonen_AU
dc.rights© 2016 The Linnean Society of Londonen_AU
dc.sourceBiological Journal of the Linnean Societyen_AU
dc.subjectcraniumen_AU
dc.subjectlandmarken_AU
dc.subjectobservation viewen_AU
dc.subjecttwo-dimensional geometric morphometricsen_AU
dc.subjectVaranusen_AU
dc.titleCombining geometric morphometric analyses of multiple 2D observation views improves interpretation of evolutionary allometry and shape diversification in monitor lizard (Varanus) craniaen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Access
local.bibliographicCitation.issue3en_AU
local.bibliographicCitation.lastpage552en_AU
local.bibliographicCitation.startpage539en_AU
local.contributor.affiliationOpenshaw, Gabrielle, College of Science, ANUen_AU
local.contributor.affiliationD’amore, Domenic, Daemen Collegeen_AU
local.contributor.affiliationVidal Garcia, Marta, College of Science, ANUen_AU
local.contributor.affiliationKeogh, J Scott, College of Science, ANUen_AU
local.contributor.authoremailu9807405@anu.edu.auen_AU
local.contributor.authoruidOpenshaw, Gabrielle, u4666855en_AU
local.contributor.authoruidVidal Garcia, Marta, u5041189en_AU
local.contributor.authoruidKeogh, J Scott, u9807405en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor060601 - Animal Physiology - Biophysicsen_AU
local.identifier.ariespublicationa383154xPUB4383en_AU
local.identifier.citationvolume120en_AU
local.identifier.doi10.1111/bij.12899en_AU
local.identifier.scopusID2-s2.0-84989315207
local.identifier.thomsonID000400944900004
local.identifier.uidSubmittedBya383154en_AU
local.publisher.urlhttps://academic.oup.com/biolinneanen_AU
local.type.statusAccepted Versionen_AU

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