Age dimorphism in the wild boar (Sus scrofa L., 1758) mandible is centred on the condylar ramus

We report here a geometric morphometric analysis based on 16 homologous landmarks by which the expression and magnitude of mandibular age dimorphism during late growth in 37 European wild boars (Sus scrofa L., 1758) were captured. These samples were subgrouped into two age clusters according to erup...

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Bibliographic Details
Author: Parés Casanova, Pere-Miquel
Format: article
Status:Published version
Publication Date:2015
Country:España
Institution:Universitat de Lleida (UdL)
Repository:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/48156
Online Access:http://hdl.handle.net/10459.1/48156
Access Level:Open access
Keyword:Age assessment
Jaw
Geometric morphometrics
Morphological variation
Pigs
Porc
Maxil·lars
Senglar
Swine
Jaws
Description
Summary:We report here a geometric morphometric analysis based on 16 homologous landmarks by which the expression and magnitude of mandibular age dimorphism during late growth in 37 European wild boars (Sus scrofa L., 1758) were captured. These samples were subgrouped into two age clusters according to eruption of the third molar:"subadults" (erupting or not yet erupted third upper molar, n = 22) and"adults" (complete dentition, n = 15). Multivariate statistics were applied to visualize the pattern, and assess the significance, of shape variation between ages. All samples demonstrated highly significant size and shape dimorphism, with the condyle consistently being the most dimorphic region of the mandible between ages.