Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?

Geometric morphometric methods (GMM) make it possible to study shape and size independently. The skulls of 58 adult specimens of different domestic breeds of Ovis were analysed by means of GMM in order to know if shape and size would allow their racial grouping. For this purpose, breeds were grouped...

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Detalles Bibliográficos
Autor: Parés Casanova, Pere-Miquel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/48113
Acceso en línea:http://hdl.handle.net/10459.1/48113
Access Level:acceso abierto
Palabra clave:Ewe
Ovis
Skull morphometrics
Skull shape
Skull size
Craniometria
Bestiar oví
Morfologia animal
Craniometry
Sheep
Animal morphology
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oai_identifier_str oai:recercat.cat:10459.1/48113
network_acronym_str ES
network_name_str España
repository_id_str
spelling Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?Parés Casanova, Pere-MiquelEweOvisSkull morphometricsSkull shapeSkull sizeCraniometriaBestiar ovíMorfologia animalCraniometrySheepAnimal morphologyGeometric morphometric methods (GMM) make it possible to study shape and size independently. The skulls of 58 adult specimens of different domestic breeds of Ovis were analysed by means of GMM in order to know if shape and size would allow their racial grouping. For this purpose, breeds were grouped a priori in four groups according to the general area of the origin of each breed:"West Mediterranean" (Fardasca breed, n=21),"Central Europe" (German breeds, n=12, Friesland, n=3 and Ile de France, n=2),"East Mediterranean" (Karaguniko, n=5, Kephalonia, n=1, Khios, n=2, and one unknown breed but of Greek origin) and"Hebrides Islands" (Hebridean breed, n=7). A picture on the lateral aspect of each skull was taken and fourteen landmarks were placed on each. Skull variation was decomposed in both size (centroid size: CS) and shape components. No allometry appeared, and size differences between groups were significant only for Eastern group (Greek breeds), probably due to the influence of Asiatic breeds. Central Europe group presented the highest variation, probably because it encloses different morphological breeds, such Friesland and Ile de France. According to shape, significant differences appeared between groups except between West and East Mediterranean breeds for the discriminant function. Shape differences were mainly focused on basilar aspect of the skull. 63.8% of the specimens were properly classified a posteriori, increasing only to 70.6% of proper classification when size was used. The results suggest that a rather low discrimination among breeds appears and that size does not add much more information.Medlife Scientific Press2015201520142015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10459.1/48113http://hdl.handle.net/10459.1/48113reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: http://journalzbr.com/volume1-issue4/JZBR-2014-1-4-27-31.pdfJournal of Zoological and Bioscience Research , 2014, vol. 1, núm. 4, p. 27-31(c) Journal of Zoological and Bioscience Research , 2014info:eu-repo/semantics/openAccessoai:recercat.cat:10459.1/481132026-05-29T05:05:01Z
dc.title.none.fl_str_mv Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?
title Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?
spellingShingle Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?
Parés Casanova, Pere-Miquel
Ewe
Ovis
Skull morphometrics
Skull shape
Skull size
Craniometria
Bestiar oví
Morfologia animal
Craniometry
Sheep
Animal morphology
title_short Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?
title_full Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?
title_fullStr Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?
title_full_unstemmed Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?
title_sort Does the application of geometric morphometric methods on skull allow a differentiation of domestic sheep breeds?
dc.creator.none.fl_str_mv Parés Casanova, Pere-Miquel
author Parés Casanova, Pere-Miquel
author_facet Parés Casanova, Pere-Miquel
author_role author
dc.subject.none.fl_str_mv Ewe
Ovis
Skull morphometrics
Skull shape
Skull size
Craniometria
Bestiar oví
Morfologia animal
Craniometry
Sheep
Animal morphology
topic Ewe
Ovis
Skull morphometrics
Skull shape
Skull size
Craniometria
Bestiar oví
Morfologia animal
Craniometry
Sheep
Animal morphology
description Geometric morphometric methods (GMM) make it possible to study shape and size independently. The skulls of 58 adult specimens of different domestic breeds of Ovis were analysed by means of GMM in order to know if shape and size would allow their racial grouping. For this purpose, breeds were grouped a priori in four groups according to the general area of the origin of each breed:"West Mediterranean" (Fardasca breed, n=21),"Central Europe" (German breeds, n=12, Friesland, n=3 and Ile de France, n=2),"East Mediterranean" (Karaguniko, n=5, Kephalonia, n=1, Khios, n=2, and one unknown breed but of Greek origin) and"Hebrides Islands" (Hebridean breed, n=7). A picture on the lateral aspect of each skull was taken and fourteen landmarks were placed on each. Skull variation was decomposed in both size (centroid size: CS) and shape components. No allometry appeared, and size differences between groups were significant only for Eastern group (Greek breeds), probably due to the influence of Asiatic breeds. Central Europe group presented the highest variation, probably because it encloses different morphological breeds, such Friesland and Ile de France. According to shape, significant differences appeared between groups except between West and East Mediterranean breeds for the discriminant function. Shape differences were mainly focused on basilar aspect of the skull. 63.8% of the specimens were properly classified a posteriori, increasing only to 70.6% of proper classification when size was used. The results suggest that a rather low discrimination among breeds appears and that size does not add much more information.
publishDate 2014
dc.date.none.fl_str_mv 2014
2015
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10459.1/48113
http://hdl.handle.net/10459.1/48113
url http://hdl.handle.net/10459.1/48113
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: http://journalzbr.com/volume1-issue4/JZBR-2014-1-4-27-31.pdf
Journal of Zoological and Bioscience Research , 2014, vol. 1, núm. 4, p. 27-31
dc.rights.none.fl_str_mv (c) Journal of Zoological and Bioscience Research , 2014
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Journal of Zoological and Bioscience Research , 2014
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Medlife Scientific Press
publisher.none.fl_str_mv Medlife Scientific Press
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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