Sexual dimorphism in guanacos (Lama guanicoe). An osteometric evaluation of postcranial elements

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In wild-living populations adult camelids are mainly sexed by observing their social and reproductive behavior, and on occasion, their genitalia. Both biologists and archaeologists usually assume the absence of clearly identifiable sexually dimorphic somatic and postcranial traits among adult guanac...

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Autores principales: Kaufmann, Cristian Ariel, L´Heureux, Gabriela Lorena
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Filosofía y Humanidades. Museo de Antropología 2009
Materias:
guanaco
dimorfismo sexual
morfometría
pelvis
huesos largos
sexual dimorphism
morphometry
long bones
Acceso en línea:https://revistas.unc.edu.ar/index.php/antropologia/article/view/5417
Aporte de:
Revistas de la UNC de Universidad Nacional de Córdoba
id I10-R10article-5417
record_format ojs
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-10
container_title_str Revistas de la UNC
language Español
format Artículo revista
topic guanaco
dimorfismo sexual
morfometría
pelvis
huesos largos
guanaco
sexual dimorphism
morphometry
pelvis
long bones
spellingShingle guanaco
dimorfismo sexual
morfometría
pelvis
huesos largos
guanaco
sexual dimorphism
morphometry
pelvis
long bones
Kaufmann, Cristian Ariel
L´Heureux, Gabriela Lorena
Sexual dimorphism in guanacos (Lama guanicoe). An osteometric evaluation of postcranial elements
topic_facet guanaco
dimorfismo sexual
morfometría
pelvis
huesos largos
guanaco
sexual dimorphism
morphometry
pelvis
long bones
author Kaufmann, Cristian Ariel
L´Heureux, Gabriela Lorena
author_facet Kaufmann, Cristian Ariel
L´Heureux, Gabriela Lorena
author_sort Kaufmann, Cristian Ariel
title Sexual dimorphism in guanacos (Lama guanicoe). An osteometric evaluation of postcranial elements
title_short Sexual dimorphism in guanacos (Lama guanicoe). An osteometric evaluation of postcranial elements
title_full Sexual dimorphism in guanacos (Lama guanicoe). An osteometric evaluation of postcranial elements
title_fullStr Sexual dimorphism in guanacos (Lama guanicoe). An osteometric evaluation of postcranial elements
title_full_unstemmed Sexual dimorphism in guanacos (Lama guanicoe). An osteometric evaluation of postcranial elements
title_sort sexual dimorphism in guanacos (lama guanicoe). an osteometric evaluation of postcranial elements
description In wild-living populations adult camelids are mainly sexed by observing their social and reproductive behavior, and on occasion, their genitalia. Both biologists and archaeologists usually assume the absence of clearly identifiable sexually dimorphic somatic and postcranial traits among adult guanaco (Lama guanicoe) specimens. The principal studies that evaluate the osteological differences between sexes in this species, had been carried out using qualitative morphological traits of the pelvis and morphometric traits of the skull. Therefore, the main objective of this paper is to contribute to the development of methodological tools aimed to accurately discriminate between sexes using morphometric techniques. In addition, we assess in this paper the existence and magnitude of the postcranial sex-related morphometric differences in a sample of modern guanaco specimens from Cinco Chañares, Río Negro, Argentina. The sample was composed by 32 individuals (8 males and 24 females) older than 30 month at the age of death. Fifty one hemipelvis, 40 humeri, 39 radioulnae, 40 femora, and 41 tibiae were measured. The obtained results show that the main morphometric differences between sexes are related to size and shape variation in the whole pelvis and acetabulum. In the appendicular skeleton no statistically significant differences between sexes were found, but this ought to be reevaluated increasing sample sizes of male specimens.
publisher Facultad de Filosofía y Humanidades. Museo de Antropología
publishDate 2009
url https://revistas.unc.edu.ar/index.php/antropologia/article/view/5417
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