Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structure

Histological analyses of fossil bones have provided clues on the growth patterns and life history traits of several extinct vertebrates that would be unavailable for classical morphological studies. We analyzed the bone histology of Hipparion to infer features of its life history traits and growth p...

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Autores: Martínez-Maza, Cayetana, Alberdi, María Teresa, Nieto-Díaz, Manuel, Prado, José Luis
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/114669
Acceso en línea:http://hdl.handle.net/10261/114669
Access Level:acceso abierto
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spelling Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structureMartínez-Maza, CayetanaAlberdi, María TeresaNieto-Díaz, ManuelPrado, José LuisHistological analyses of fossil bones have provided clues on the growth patterns and life history traits of several extinct vertebrates that would be unavailable for classical morphological studies. We analyzed the bone histology of Hipparion to infer features of its life history traits and growth pattern. Microscope analysis of thin sections of a large sample of humeri, femora, tibiae and metapodials of Hipparion concudense from the upper Miocene site of Los Valles de Fuentiduen˜ a (Segovia, Spain) has shown that the number of growth marks is similar among the different limb bones, suggesting that equivalent skeletochronological inferences for this Hipparion population might be achieved by means of any of the elements studied. Considering their abundance, we conducted a skeletechronological study based on the large sample of third metapodials from Los Valles de Fuentiduen˜ a together with another large sample from the Upper Miocene locality of Concud (Teruel, Spain). The data obtained enabled us to distinguish four age groups in both samples and to determine that Hipparion concudense tended to reach skeletal maturity during its third year of life. Integration of bone microstructure and skeletochronological data allowed us to identify ontogenetic changes in bone structure and growth rate and to distinguish three histologic ontogenetic stages corresponding to immature, subadult and adult individuals. Data on secondary osteon density revealed an increase in bone remodeling throughout the ontogenetic stages and a lesser degree thereof in the Concud population, which indicates different biomechanical stresses in the two populations, likely due to environmental differences. Several individuals showed atypical growth patterns in the Concud sample, which may also reflect environmental differences between the two localities. Finally, classification of the specimens’ age within groups enabled us to characterize the age structure of both samples, which is typical of attritional assemblages.This study was funded by the research project CGL2010-19116/BOS (Ministerio de Economia y Competitividad, Spain). CMM was supported by a JAEDOC postdoctoral contract (CSIC) co-funded by the European Social Fund.Peer reviewedPublic Library of ScienceMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201520152014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/114669reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://journals.plos.org/plosone/article?id=10.1371/journal.pone.0103708Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1146692026-05-22T06:33:51Z
dc.title.none.fl_str_mv Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structure
title Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structure
spellingShingle Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structure
Martínez-Maza, Cayetana
title_short Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structure
title_full Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structure
title_fullStr Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structure
title_full_unstemmed Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structure
title_sort Life-History traits of the Miocene Hipparion concudense (Spain) Inferred from bone histological structure
dc.creator.none.fl_str_mv Martínez-Maza, Cayetana
Alberdi, María Teresa
Nieto-Díaz, Manuel
Prado, José Luis
author Martínez-Maza, Cayetana
author_facet Martínez-Maza, Cayetana
Alberdi, María Teresa
Nieto-Díaz, Manuel
Prado, José Luis
author_role author
author2 Alberdi, María Teresa
Nieto-Díaz, Manuel
Prado, José Luis
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Histological analyses of fossil bones have provided clues on the growth patterns and life history traits of several extinct vertebrates that would be unavailable for classical morphological studies. We analyzed the bone histology of Hipparion to infer features of its life history traits and growth pattern. Microscope analysis of thin sections of a large sample of humeri, femora, tibiae and metapodials of Hipparion concudense from the upper Miocene site of Los Valles de Fuentiduen˜ a (Segovia, Spain) has shown that the number of growth marks is similar among the different limb bones, suggesting that equivalent skeletochronological inferences for this Hipparion population might be achieved by means of any of the elements studied. Considering their abundance, we conducted a skeletechronological study based on the large sample of third metapodials from Los Valles de Fuentiduen˜ a together with another large sample from the Upper Miocene locality of Concud (Teruel, Spain). The data obtained enabled us to distinguish four age groups in both samples and to determine that Hipparion concudense tended to reach skeletal maturity during its third year of life. Integration of bone microstructure and skeletochronological data allowed us to identify ontogenetic changes in bone structure and growth rate and to distinguish three histologic ontogenetic stages corresponding to immature, subadult and adult individuals. Data on secondary osteon density revealed an increase in bone remodeling throughout the ontogenetic stages and a lesser degree thereof in the Concud population, which indicates different biomechanical stresses in the two populations, likely due to environmental differences. Several individuals showed atypical growth patterns in the Concud sample, which may also reflect environmental differences between the two localities. Finally, classification of the specimens’ age within groups enabled us to characterize the age structure of both samples, which is typical of attritional assemblages.
publishDate 2014
dc.date.none.fl_str_mv 2014
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
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dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/114669
url http://hdl.handle.net/10261/114669
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0103708
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Public Library of Science
publisher.none.fl_str_mv Public Library of Science
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
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