Artículo

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Abstract:

A morphometric analysis on the skull of five populations of Ctenomys talarum was performed; these populations represent the three subspecies recognized for this species of tuco-tuco (i.e. C. t. talarum, C. t. recesus y C. t. occidentalis). We analyzed the skull geographic variation and the sexual dimorphism. When studying the geographic variation, two types of discriminant analyses were performed: one from the raw data and another from scale-corrected data, after a method that removes the information related to size was applied. We observed a significant sexual dimorphism in C. talarum; in conse-quence analyses of geographic variation were conducted separately in males and females. Results from these analyses showed significant differences between populations that were mainly due to the overall size of the skull, both in males and females. After influence of size was removed, differences between populations (due to shape differences on the skull) were less significant. Likewise, the geographic craniometric variation observed was not in agreement with the three nominal species of C. talarum, therefore, these results do not support their recognition. In the genus Ctenomys, size is assumed to be a very important evolutive character, both at the intraspecific as well as the interspecific levels. © SAREM, 2009.

Registro:

Documento: Artículo
Título:Analysis of craniometric variation in Ctenomys talarum (Rodentia, Ctenomyidae)
Autor:García Esponda, C.M.; Moreira, G.J.; Justo, E.R.; de Santis, L.J.M.
Filiación:Facultad de Ciencias Naturales y Museo, calle 64 s/n (esq. 120), 1900 La Plata, Argentina
Comisión de Investigaciones Científicas de la provincia de Buenos Aires (CIC), Argentina
Facultad de Ciencias Exactas y Naturales, Uruguay 151, 6300 Santa Rosa, Argentina
Idioma: Español
Palabras clave:Argentina; Craniometry; Ctenomys talarum; Geographic variation; Sexual dimorphism; Ctenomyidae; Ctenomys; Ctenomys talarum; Rodentia
Año:2009
Volumen:16
Número:1
Título revista:Mastozoologia Neotropical
Título revista abreviado:Mastozoologia Neotropical
ISSN:03279383
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v16_n1_p_GarciaEsponda

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Citas:

---------- APA ----------
García Esponda, C.M., Moreira, G.J., Justo, E.R. & de Santis, L.J.M. (2009) . Analysis of craniometric variation in Ctenomys talarum (Rodentia, Ctenomyidae) . Mastozoologia Neotropical, 16(1).
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v16_n1_p_GarciaEsponda [ ]
---------- CHICAGO ----------
García Esponda, C.M., Moreira, G.J., Justo, E.R., de Santis, L.J.M. "Analysis of craniometric variation in Ctenomys talarum (Rodentia, Ctenomyidae) " . Mastozoologia Neotropical 16, no. 1 (2009).
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v16_n1_p_GarciaEsponda [ ]
---------- MLA ----------
García Esponda, C.M., Moreira, G.J., Justo, E.R., de Santis, L.J.M. "Analysis of craniometric variation in Ctenomys talarum (Rodentia, Ctenomyidae) " . Mastozoologia Neotropical, vol. 16, no. 1, 2009.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v16_n1_p_GarciaEsponda [ ]
---------- VANCOUVER ----------
García Esponda, C.M., Moreira, G.J., Justo, E.R., de Santis, L.J.M. Analysis of craniometric variation in Ctenomys talarum (Rodentia, Ctenomyidae) . Mastozoologia Neotropical. 2009;16(1).
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03279383_v16_n1_p_GarciaEsponda [ ]