Methodology for the estimation of the age categories of Hydrochoerus hydrochaeris (Rodentia, Hydrochoeridae) through the cranial and femur morphometry

The aim of this study is to propose a methodology to estimate the age of individuals of capybaras (Hydrochoerus hydrochaeris) using some morphometric measurements of the skull and femur. A sample of 250 individuals from different age categories was analyzed. These categories were estimated based on...

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Detalles Bibliográficos
Autores principales: Gorosábel, A., Corriale, M.J., Loponte, D.
Formato: JOUR
Materias:
age estimation
capybara
morphometric measurements
skull
age structure
bone
maturation
morphology
morphometry
paleontology
rodent
tooth
Hydrochaeridae
Hydrochaeris hydrochaeris
Rodentia
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00251461_v81_n1_p83_Gorosabel
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00251461_v81_n1_p83_Gorosabel
record_format dspace
spelling todo:paper_00251461_v81_n1_p83_Gorosabel2023-10-03T14:35:36Z Methodology for the estimation of the age categories of Hydrochoerus hydrochaeris (Rodentia, Hydrochoeridae) through the cranial and femur morphometry Gorosábel, A. Corriale, M.J. Loponte, D. age estimation capybara morphometric measurements skull age structure bone maturation morphology morphometry paleontology rodent skull tooth Hydrochaeridae Hydrochaeris hydrochaeris Rodentia The aim of this study is to propose a methodology to estimate the age of individuals of capybaras (Hydrochoerus hydrochaeris) using some morphometric measurements of the skull and femur. A sample of 250 individuals from different age categories was analyzed. These categories were estimated based on the ossification degree of the cranial sutures. Out of 28 morphocranial measurements taken, nine of them allow us to adequately determine the degree of bone maturation and the relative age: pre maxillonasal maximum width (MNW), pre maxillonasal minimum width (MNMW), parietal width (PW), intermaxillary width (IMW), maximum width of the 3rd molar (MW), minimum width of the 3rd molar (MMW), 3rd molar length (M3), molar length (ML), and molar 1 and 2 length (M12). In case of the femur, the measurements did not show differences among age categories, thus, we discarded these morphometric magnitudes as possible age indicators. This work proposes new measures to estimate and to analyze the relative age structure of the capybara population, providing a useful tool in the management and conservation of this species, and to evaluate paleontological and archaeological assemblages. © 2017 Walter de Gruyter GmbH, Berlin/Boston 2017. Fil:Corriale, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00251461_v81_n1_p83_Gorosabel
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic age estimation
capybara
morphometric measurements
skull
age structure
bone
maturation
morphology
morphometry
paleontology
rodent
skull
tooth
Hydrochaeridae
Hydrochaeris hydrochaeris
Rodentia
spellingShingle age estimation
capybara
morphometric measurements
skull
age structure
bone
maturation
morphology
morphometry
paleontology
rodent
skull
tooth
Hydrochaeridae
Hydrochaeris hydrochaeris
Rodentia
Gorosábel, A.
Corriale, M.J.
Loponte, D.
Methodology for the estimation of the age categories of Hydrochoerus hydrochaeris (Rodentia, Hydrochoeridae) through the cranial and femur morphometry
topic_facet age estimation
capybara
morphometric measurements
skull
age structure
bone
maturation
morphology
morphometry
paleontology
rodent
skull
tooth
Hydrochaeridae
Hydrochaeris hydrochaeris
Rodentia
description The aim of this study is to propose a methodology to estimate the age of individuals of capybaras (Hydrochoerus hydrochaeris) using some morphometric measurements of the skull and femur. A sample of 250 individuals from different age categories was analyzed. These categories were estimated based on the ossification degree of the cranial sutures. Out of 28 morphocranial measurements taken, nine of them allow us to adequately determine the degree of bone maturation and the relative age: pre maxillonasal maximum width (MNW), pre maxillonasal minimum width (MNMW), parietal width (PW), intermaxillary width (IMW), maximum width of the 3rd molar (MW), minimum width of the 3rd molar (MMW), 3rd molar length (M3), molar length (ML), and molar 1 and 2 length (M12). In case of the femur, the measurements did not show differences among age categories, thus, we discarded these morphometric magnitudes as possible age indicators. This work proposes new measures to estimate and to analyze the relative age structure of the capybara population, providing a useful tool in the management and conservation of this species, and to evaluate paleontological and archaeological assemblages. © 2017 Walter de Gruyter GmbH, Berlin/Boston 2017.
format JOUR
author Gorosábel, A.
Corriale, M.J.
Loponte, D.
author_facet Gorosábel, A.
Corriale, M.J.
Loponte, D.
author_sort Gorosábel, A.
title Methodology for the estimation of the age categories of Hydrochoerus hydrochaeris (Rodentia, Hydrochoeridae) through the cranial and femur morphometry
title_short Methodology for the estimation of the age categories of Hydrochoerus hydrochaeris (Rodentia, Hydrochoeridae) through the cranial and femur morphometry
title_full Methodology for the estimation of the age categories of Hydrochoerus hydrochaeris (Rodentia, Hydrochoeridae) through the cranial and femur morphometry
title_fullStr Methodology for the estimation of the age categories of Hydrochoerus hydrochaeris (Rodentia, Hydrochoeridae) through the cranial and femur morphometry
title_full_unstemmed Methodology for the estimation of the age categories of Hydrochoerus hydrochaeris (Rodentia, Hydrochoeridae) through the cranial and femur morphometry
title_sort methodology for the estimation of the age categories of hydrochoerus hydrochaeris (rodentia, hydrochoeridae) through the cranial and femur morphometry
url http://hdl.handle.net/20.500.12110/paper_00251461_v81_n1_p83_Gorosabel
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AT corrialemj methodologyfortheestimationoftheagecategoriesofhydrochoerushydrochaerisrodentiahydrochoeridaethroughthecranialandfemurmorphometry
AT loponted methodologyfortheestimationoftheagecategoriesofhydrochoerushydrochaerisrodentiahydrochoeridaethroughthecranialandfemurmorphometry
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