Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometrics

Autores
Figueirido, Borja; Soibelzon, Leopoldo Héctor
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this study we explore the ecomorphological patterns of extinct tremarctine bears in South America during the Great American Biotic Interchange (GABI). These patterns are used to derive palaeoautoecological inferences in extinct tremarctines and their palaeosinecological relationships within Plio-Pleistocene ecosystems. We used geometric morphometrics of landmark data to recover the shape of the craniomandibular skeleton of bears. The results reveal different ecomorphological specializations in extinct tremarctines during the Plio-Pleistocene of South America. Indeed, these bears could have increased the percentage of plant matter in their diets according with the increased diversity of large carnivores in South America after the GABI. Omnivorous bears retain the ability to behave as carnivores or herbivores depending on resource availability. This fact strongly supports that bears are one of the most ecologically and morphologically adaptable members of the large carnivore guild. Moreover, their skull morphology could reflect ecological adaptations under different selection pressures with the required evolutionary time
Museo de La Plata
Materia
Ciencias Naturales
Paleontología
Evolución
oso
GABI; geometric morphometrics; palaeoecology; Tremarctinae
Ursidae
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc/3.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/5372

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oai_identifier_str oai:sedici.unlp.edu.ar:10915/5372
network_acronym_str SEDICI
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network_name_str SEDICI (UNLP)
spelling Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometricsFigueirido, BorjaSoibelzon, Leopoldo HéctorCiencias NaturalesPaleontologíaEvoluciónosoGABI; geometric morphometrics; palaeoecology; TremarctinaeUrsidaeIn this study we explore the ecomorphological patterns of extinct tremarctine bears in South America during the Great American Biotic Interchange (GABI). These patterns are used to derive palaeoautoecological inferences in extinct tremarctines and their palaeosinecological relationships within Plio-Pleistocene ecosystems. We used geometric morphometrics of landmark data to recover the shape of the craniomandibular skeleton of bears. The results reveal different ecomorphological specializations in extinct tremarctines during the Plio-Pleistocene of South America. Indeed, these bears could have increased the percentage of plant matter in their diets according with the increased diversity of large carnivores in South America after the GABI. Omnivorous bears retain the ability to behave as carnivores or herbivores depending on resource availability. This fact strongly supports that bears are one of the most ecologically and morphologically adaptable members of the large carnivore guild. Moreover, their skull morphology could reflect ecological adaptations under different selection pressures with the required evolutionary timeMuseo de La Plata2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf209-222http://sedici.unlp.edu.ar/handle/10915/5372enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/3.0/Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:22:27Zoai:sedici.unlp.edu.ar:10915/5372Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:22:27.304SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometrics
title Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometrics
spellingShingle Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometrics
Figueirido, Borja
Ciencias Naturales
Paleontología
Evolución
oso
GABI; geometric morphometrics; palaeoecology; Tremarctinae
Ursidae
title_short Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometrics
title_full Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometrics
title_fullStr Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometrics
title_full_unstemmed Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometrics
title_sort Inferring palaeoecology in extinct tremarctine bears (Carnivora, Ursidae) using geometric morphometrics
dc.creator.none.fl_str_mv Figueirido, Borja
Soibelzon, Leopoldo Héctor
author Figueirido, Borja
author_facet Figueirido, Borja
Soibelzon, Leopoldo Héctor
author_role author
author2 Soibelzon, Leopoldo Héctor
author2_role author
dc.subject.none.fl_str_mv Ciencias Naturales
Paleontología
Evolución
oso
GABI; geometric morphometrics; palaeoecology; Tremarctinae
Ursidae
topic Ciencias Naturales
Paleontología
Evolución
oso
GABI; geometric morphometrics; palaeoecology; Tremarctinae
Ursidae
dc.description.none.fl_txt_mv In this study we explore the ecomorphological patterns of extinct tremarctine bears in South America during the Great American Biotic Interchange (GABI). These patterns are used to derive palaeoautoecological inferences in extinct tremarctines and their palaeosinecological relationships within Plio-Pleistocene ecosystems. We used geometric morphometrics of landmark data to recover the shape of the craniomandibular skeleton of bears. The results reveal different ecomorphological specializations in extinct tremarctines during the Plio-Pleistocene of South America. Indeed, these bears could have increased the percentage of plant matter in their diets according with the increased diversity of large carnivores in South America after the GABI. Omnivorous bears retain the ability to behave as carnivores or herbivores depending on resource availability. This fact strongly supports that bears are one of the most ecologically and morphologically adaptable members of the large carnivore guild. Moreover, their skull morphology could reflect ecological adaptations under different selection pressures with the required evolutionary time
Museo de La Plata
description In this study we explore the ecomorphological patterns of extinct tremarctine bears in South America during the Great American Biotic Interchange (GABI). These patterns are used to derive palaeoautoecological inferences in extinct tremarctines and their palaeosinecological relationships within Plio-Pleistocene ecosystems. We used geometric morphometrics of landmark data to recover the shape of the craniomandibular skeleton of bears. The results reveal different ecomorphological specializations in extinct tremarctines during the Plio-Pleistocene of South America. Indeed, these bears could have increased the percentage of plant matter in their diets according with the increased diversity of large carnivores in South America after the GABI. Omnivorous bears retain the ability to behave as carnivores or herbivores depending on resource availability. This fact strongly supports that bears are one of the most ecologically and morphologically adaptable members of the large carnivore guild. Moreover, their skull morphology could reflect ecological adaptations under different selection pressures with the required evolutionary time
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/5372
url http://sedici.unlp.edu.ar/handle/10915/5372
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/3.0/
Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/3.0/
Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
dc.format.none.fl_str_mv application/pdf
209-222
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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