Ecomorphological variations in the guanaco population of Patagonia (Argentina)

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This paper studies the body sizes of modern, continental and insular Patagonian (Argentina) Lama guanicoe populations based on the osteometric analysis of four forelimb bones (humerus, radio-ulnae, metacarpus and first phalanx). A sample of more than 100 individuals from the Provinces of Río Negro (...

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Autores principales: L’Heureux, G. Lorena, Cornaglia Fernández, Jimena
Formato: Artículo publishedVersion
Lenguaje:Español
Publicado: Instituto de Arqueología, Facultad de Filosofía y Letras, Universidad de Buenos Aires 2016
Materias:
Lama guanicoe
Patagonia
Body size
Latitudinal variation
Environmental variables
Osteometry
Tamaño corporal
Variación latitudinal
Variables ambientales
Osteometría
Acceso en línea:http://revistascientificas.filo.uba.ar/index.php/Arqueologia/article/view/3280
Aporte de:
Suquía - Instituto de Antropología de Córdoba (IDACOR, CONICET y UNC) de Universidad Nacional de Córdoba
id I10-R181-suquia-9490
record_format dspace
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-181
collection Suquía - Instituto de Antropología de Córdoba (IDACOR, CONICET y UNC)
language Español
topic Lama guanicoe
Patagonia
Body size
Latitudinal variation
Environmental variables
Osteometry
Lama guanicoe
Patagonia
Tamaño corporal
Variación latitudinal
Variables ambientales
Osteometría
spellingShingle Lama guanicoe
Patagonia
Body size
Latitudinal variation
Environmental variables
Osteometry
Lama guanicoe
Patagonia
Tamaño corporal
Variación latitudinal
Variables ambientales
Osteometría
L’Heureux, G. Lorena
Cornaglia Fernández, Jimena
Ecomorphological variations in the guanaco population of Patagonia (Argentina)
topic_facet Lama guanicoe
Patagonia
Body size
Latitudinal variation
Environmental variables
Osteometry
Lama guanicoe
Patagonia
Tamaño corporal
Variación latitudinal
Variables ambientales
Osteometría
description This paper studies the body sizes of modern, continental and insular Patagonian (Argentina) Lama guanicoe populations based on the osteometric analysis of four forelimb bones (humerus, radio-ulnae, metacarpus and first phalanx). A sample of more than 100 individuals from the Provinces of Río Negro (40°S), Santa Cruz (48-52°S) and Tierra del Fuego (53-54.5°S) were analyzed. The morphological size variations were evaluated considering the eco-environmental variables of temperature (maximum/ minimum), precipitation (summer, winter and annual), aerial net primary productivity (ANPP) and normalized difference vegetation index (NDVI). The data was analyzed using a number of uni and multivariate statistical models. The results show that, at a macro-regional scale, there was a clinal variation in the body sizes of guanaco populations (with individuals from Tierra del Fuego being significantly bigger than those from Santa Cruz, with the latter in turn being larger than those from Río Negro). All eco-environmental factors strongly associated with bone sizes (maximum temperature, ANPP, NDVI) co-vary, in the study region depending on latitude. The clinal pattern observed was, in principle, consistent with the expectations of Bergmann’s Rule. Also different environmental and biogeographic variables influenced the size patterns of modern Patagonian guanacos, thereby underscoring that the relationship between body size and environment is of a complex nature - and cannot be explained simply and directly by a single factor.
format Artículo
publishedVersion
author L’Heureux, G. Lorena
Cornaglia Fernández, Jimena
author_facet L’Heureux, G. Lorena
Cornaglia Fernández, Jimena
author_sort L’Heureux, G. Lorena
title Ecomorphological variations in the guanaco population of Patagonia (Argentina)
title_short Ecomorphological variations in the guanaco population of Patagonia (Argentina)
title_full Ecomorphological variations in the guanaco population of Patagonia (Argentina)
title_fullStr Ecomorphological variations in the guanaco population of Patagonia (Argentina)
title_full_unstemmed Ecomorphological variations in the guanaco population of Patagonia (Argentina)
title_sort ecomorphological variations in the guanaco population of patagonia (argentina)
publisher Instituto de Arqueología, Facultad de Filosofía y Letras, Universidad de Buenos Aires
publishDate 2016
url http://revistascientificas.filo.uba.ar/index.php/Arqueologia/article/view/3280
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bdutipo_str Repositorios
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