Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and Ecuador
Descripción del Articulo
Oecomys is a moderately specious genus of small to medium size. Within the genus, the species O. bicolor is readily recognized; however, it has been reported individual variation in size and color from different populations suggesting that the species could be a species complex. Intraspecific inform...
| Autores: | , |
|---|---|
| Formato: | artículo |
| Fecha de Publicación: | 2017 |
| Institución: | Universidad Nacional Mayor de San Marcos |
| Repositorio: | Revistas - Universidad Nacional Mayor de San Marcos |
| Lenguaje: | español |
| OAI Identifier: | oai:ojs.csi.unmsm:article/13918 |
| Enlace del recurso: | https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/13918 |
| Nivel de acceso: | acceso abierto |
| Materia: | Oryzomyini Ontogeny Sexual dimorphism Geometric morphometrics Oecomys Orizomino Ontogenia Dimorfismo Sexual |
| id |
REVUNMSM_7920a641560b9d2b390ee26fad01fb09 |
|---|---|
| oai_identifier_str |
oai:ojs.csi.unmsm:article/13918 |
| network_acronym_str |
REVUNMSM |
| network_name_str |
Revistas - Universidad Nacional Mayor de San Marcos |
| repository_id_str |
|
| spelling |
Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and EcuadorVariación ontogénica y sexual de Oecomys bicolor (Rodentia, Cricetidae) de Perú y EcuadorMenajovsky Bonifaz, Maria FernandaPacheco Torres, Victor RaulOryzomyiniOntogenySexual dimorphismGeometric morphometricsOecomysOrizominoOntogeniaDimorfismo SexualOecomys is a moderately specious genus of small to medium size. Within the genus, the species O. bicolor is readily recognized; however, it has been reported individual variation in size and color from different populations suggesting that the species could be a species complex. Intraspecific information in O. bicolor is limited despite its wide distribution; but, this information is necessary for delimiting the species as well as explaining variations within populations. Therefore, in the present study 148 specimens of O. bicolor were analyzed, with the objective of evaluating the non-geographic variation of the species related to sex and age. 13 skull-dental variables were analyzed. Univariate and multivariate statistical approximations showed that sexual dimorphism is not significant; on the other hand, the ontogenic variation is considerable among young adults, these results are consistent with previous studies in sigmodontine rodents. It is recommended to continue studies of geographic variation with only ages 3, 4 and 5, and treating males and females collectively.Oecomys es un género moderadamente especioso de tamaño pequeño a mediano y coloración característica. Dentro del género, la especie O. bicolor es reconocida morfológicamente con relativa facilidad; sin embargo, se ha reportado variaciones individuales, en tamaño y color, de distintas poblaciones que sugieren la especie podría ser un complejo de especies. La información intraespecífica presente en O. bicolor es muy poca a pesar de su amplia distribución; no obstante, esta información es necesaria para la delimitación de la especie así como explicar variaciones en poblaciones. Por ello, en el presente estudio se analizaron 148 especímenes de O. bicolor, con el objetivo de evaluar lavariación no geográfica referida al sexo y edad. Las muestras se organizaron formando grupos según su distribución geográfica y se analizaron 13 variables cráneo-dentales. Mediante aproximaciones estadísticas univariadas y multivariadas se demostró que el dimorfismo sexual no es significativo, por otro lado la variación ontogénica es considerable entre jóvenes y adultos. Se recomienda continuar los estudios de variación geográfica tomando en cuenta las edades 3, 4 y 5, y juntando machos y hembras.Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas2017-12-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/1391810.15381/rpb.v24i4.13918Revista Peruana de Biología; Vol. 24 Núm. 4 (2017); 383 - 390Revista Peruana de Biología; Vol. 24 No. 4 (2017); 383 - 3901727-99331561-0837reponame:Revistas - Universidad Nacional Mayor de San Marcosinstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMspahttps://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/13918/12454Derechos de autor 2017 Maria Fernanda Menajovsky Bonifaz, Victor Raul Pacheco Torreshttps://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/openAccessoai:ojs.csi.unmsm:article/139182018-06-23T13:33:18Z |
| dc.title.none.fl_str_mv |
Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and Ecuador Variación ontogénica y sexual de Oecomys bicolor (Rodentia, Cricetidae) de Perú y Ecuador |
| title |
Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and Ecuador |
| spellingShingle |
Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and Ecuador Menajovsky Bonifaz, Maria Fernanda Oryzomyini Ontogeny Sexual dimorphism Geometric morphometrics Oecomys Orizomino Ontogenia Dimorfismo Sexual |
| title_short |
Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and Ecuador |
| title_full |
Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and Ecuador |
| title_fullStr |
Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and Ecuador |
| title_full_unstemmed |
Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and Ecuador |
| title_sort |
Ontogenetic and sexual variation of Oecomys bicolor (Rodentia, Cricetidae) from Peru and Ecuador |
| dc.creator.none.fl_str_mv |
Menajovsky Bonifaz, Maria Fernanda Pacheco Torres, Victor Raul |
| author |
Menajovsky Bonifaz, Maria Fernanda |
| author_facet |
Menajovsky Bonifaz, Maria Fernanda Pacheco Torres, Victor Raul |
| author_role |
author |
| author2 |
Pacheco Torres, Victor Raul |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Oryzomyini Ontogeny Sexual dimorphism Geometric morphometrics Oecomys Orizomino Ontogenia Dimorfismo Sexual |
| topic |
Oryzomyini Ontogeny Sexual dimorphism Geometric morphometrics Oecomys Orizomino Ontogenia Dimorfismo Sexual |
| description |
Oecomys is a moderately specious genus of small to medium size. Within the genus, the species O. bicolor is readily recognized; however, it has been reported individual variation in size and color from different populations suggesting that the species could be a species complex. Intraspecific information in O. bicolor is limited despite its wide distribution; but, this information is necessary for delimiting the species as well as explaining variations within populations. Therefore, in the present study 148 specimens of O. bicolor were analyzed, with the objective of evaluating the non-geographic variation of the species related to sex and age. 13 skull-dental variables were analyzed. Univariate and multivariate statistical approximations showed that sexual dimorphism is not significant; on the other hand, the ontogenic variation is considerable among young adults, these results are consistent with previous studies in sigmodontine rodents. It is recommended to continue studies of geographic variation with only ages 3, 4 and 5, and treating males and females collectively. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017-12-21 |
| 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 |
https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/13918 10.15381/rpb.v24i4.13918 |
| url |
https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/13918 |
| identifier_str_mv |
10.15381/rpb.v24i4.13918 |
| dc.language.none.fl_str_mv |
spa |
| language |
spa |
| dc.relation.none.fl_str_mv |
https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/13918/12454 |
| dc.rights.none.fl_str_mv |
Derechos de autor 2017 Maria Fernanda Menajovsky Bonifaz, Victor Raul Pacheco Torres https://creativecommons.org/licenses/by-nc-sa/4.0 info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
Derechos de autor 2017 Maria Fernanda Menajovsky Bonifaz, Victor Raul Pacheco Torres https://creativecommons.org/licenses/by-nc-sa/4.0 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas |
| publisher.none.fl_str_mv |
Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas |
| dc.source.none.fl_str_mv |
Revista Peruana de Biología; Vol. 24 Núm. 4 (2017); 383 - 390 Revista Peruana de Biología; Vol. 24 No. 4 (2017); 383 - 390 1727-9933 1561-0837 reponame:Revistas - Universidad Nacional Mayor de San Marcos instname:Universidad Nacional Mayor de San Marcos instacron:UNMSM |
| instname_str |
Universidad Nacional Mayor de San Marcos |
| instacron_str |
UNMSM |
| institution |
UNMSM |
| reponame_str |
Revistas - Universidad Nacional Mayor de San Marcos |
| collection |
Revistas - Universidad Nacional Mayor de San Marcos |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1795238312038891520 |
| score |
13.959421 |
Nota importante:
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
