Comparative ontogenetic shape changes in the skull of Caiman species (Crocodylia, Alligatoridae)

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Santa Úrsula-
Autor(es): dc.contributorPennsylvania State University-
Autor(es): dc.creatorMonteiro, L. R.-
Autor(es): dc.creatorCavalcanti, M. J.-
Autor(es): dc.creatorSommer, H. J.S.-
Data de aceite: dc.date.accessioned2025-08-21T17:23:15Z-
Data de disponibilização: dc.date.available2025-08-21T17:23:15Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued1997-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/(SICI)1097-4687(199701)231:1<53-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/224058-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/224058-
Descrição: dc.descriptionOntogenetic shape changes in the skull of three species of the genus Caiman (C. latirostris, C. sclerops, and C. yacare) are compared by geometric morphometries for three-dimensional configurations (the least-squares analysis). The technique for obtaining the landmark coordinates is a simplification of the algorithm for multidimensional scaling. The ontogenetic nonlinear shape changes are similar in the three species but occur in a lesser extent in C. latirostris. These seem to be correlated with functional changes in the skull. The uniform shape change corresponds to an elongation of the skull, dorsoventral flattening, and lateral compression in C. sclerops and C. yacare. There is some lateral broadening in C. latirostris. Differences in the ontogenetic processes probably cause the differences in diet observed between C. latirostris and the other two species. Neotenic evolution seems to have acted in the skull of C. latirostris, and a posterior amplification of the early divergence led to a repatterning of the shape ontogenetic trajectory in this species.-
Descrição: dc.descriptionDepartamento de Zoologia Instituto de Biociências UNESP, CP 199, Rio Claro, CEP 13506-900, SP-
Descrição: dc.descriptionDepartamento de Biologia Geral Universidade Santa Úrsula, Rua Fernando Ferrari, 75, CEP 22231-040, Rio de Janeiro, RJ-
Descrição: dc.descriptionDepartment of Mechanical Engineering Pennsylvania State University, University Park, PA 16802-
Descrição: dc.descriptionDepartamento de Zoologia Instituto de Biociências UNESP, CP 199, Rio Claro, CEP 13506-900, SP-
Formato: dc.format53-62-
Idioma: dc.languageen-
Relação: dc.relationJournal of Morphology-
???dc.source???: dc.sourceScopus-
Título: dc.titleComparative ontogenetic shape changes in the skull of Caiman species (Crocodylia, Alligatoridae)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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