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dc.date.accessioned | 2021-11-23T16:22:17Z | |
dc.date.available | 2021-11-23T16:22:17Z | |
dc.date.issued | 2016 | |
dc.identifier.uri | http://sedici.unlp.edu.ar/handle/10915/128517 | |
dc.description.abstract | Psittaciformes are a very diverse group of non-passerine birds, with advanced cognitive abilities and highly developed locomotor and feeding behaviours. Using computed tomography and three-dimensional (3D) visualization software, the endocasts of 14 extant Neotropical parrots were reconstructed, with the aim of analysing, comparing and exploring the morphology of the brain within the clade. A 3D geomorphometric analysis was performed, and the encephalization quotient (EQ) was calculated. Brain morphology character states were traced onto a Psittaciformes tree in order to facilitate interpretation of morphological traits in a phylogenetic context. Our results indicate that: (i) there are two conspicuously distinct brain morphologies, one considered walnut type (quadrangular and wider than long) and the other rounded (narrower and rostrally tapered); (ii) Psittaciformes possess a noticeable notch between hemisphaeria that divides the bulbus olfactorius; (iii) the plesiomorphic and most frequently observed characteristics of Neotropical parrots are a rostrally tapered telencephalon in dorsal view, distinctly enlarged dorsal expansion of the eminentia sagittalis and conspicuous fissura mediana; (iv) there is a positive correlation between body mass and brain volume; (v) psittacids are characterized by high EQ values that suggest high brain volumes in relation to their body masses; and (vi) the endocranial morphology of the Psittaciformes as a whole is distinctive relative to other birds. This new knowledge of brain morphology offers much potential for further insight in paleoneurological, phylogenetic and evolutionary studies. | en |
dc.format.extent | 239-251 | es |
dc.language | en | es |
dc.subject | 3D brain reconstructions | es |
dc.subject | Aves | es |
dc.subject | Character mapping | es |
dc.subject | Endocranial morphology | es |
dc.subject | Geometric morphometrics | es |
dc.title | Comparative brain morphology of Neotropical parrots (Aves, Psittaciformes) inferred from virtual 3D endocasts | en |
dc.type | Articulo | es |
sedici.identifier.other | pmid:26053196 | es |
sedici.identifier.other | doi:10.1111/joa.12325 | es |
sedici.identifier.other | pmcid:PMC4948055 | es |
sedici.identifier.issn | 1469-7580 | es |
sedici.identifier.issn | 0021-8782 | es |
sedici.creator.person | Carril, Julieta | es |
sedici.creator.person | Tambussi, Claudia Patricia | es |
sedici.creator.person | Degrange, Federico Javier | es |
sedici.creator.person | Benítez Saldívar, María Juliana | es |
sedici.creator.person | Picasso, Mariana Beatriz Julieta | es |
sedici.subject.materias | Zoología | es |
sedici.subject.materias | Biología | es |
sedici.description.fulltext | true | es |
mods.originInfo.place | Facultad de Ciencias Naturales y Museo | es |
sedici.subtype | Articulo | es |
sedici.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
sedici.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
sedici.description.peerReview | peer-review | es |
sedici.relation.journalTitle | Journal of Anatomy | es |
sedici.relation.journalVolumeAndIssue | vol. 229, no. 2 | es |