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      DIVERSIFICACIÓN MORFOLÓGICA Y POBLAMIENTO TEMPRANO DEL NOROCCIDENTE DE SURAMÉRICA: UN ESTUDIO DE LA VARIACIÓN CRANEOFACIAL Translated title: MORPHOLOGICAL DIVERSIFICATION AND THE EARLY PEOPLING OF NORTHWEST SOUTH AMERICA: AN ANALYSIS OF THE CRANIOFACIAL VARIATION

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          Abstract

          Se presenta un estudio de la variación craneofacial en muestras del noroccidente de Suramérica, distribuidas ampliamente en un sentido espacial y temporal, con el objetivo de proponer hipótesis sobre el poblamiento inicial. Se llevaron a cabo diferentes análisis (matriz-R, correlación de matrices y morfometría geométrica) para estudiar la historia y la estructura poblacional a nivel regional. Los resultados sugieren una alta diversidad morfológica, así como la existencia de patrones de estructuración espacial y temporal; también indican que ciertos eventos poblacionales y la acción de fuerzas evolutivas afectaron notablemente la diversidad craneofacial a través del tiempo. A partir de la comparación de distintos tipos de evidencia se propone un modelo sobre la forma y el tiempo del poblamiento temprano de la región y la subsecuente evolución poblacional a lo largo del Holoceno.

          Translated abstract

          A study of the craniofacial diversity among samples from Northwest South America, temporal and spatially scattered, is presented in order to create hypotheses for the early peopling of the region. Several kinds of statistical procedures (R-matrix, matrix correlation analysis and geometric morphometrics) were performed in order to assess the population history and structure at the regional level. The results revealed high morphological diversity and patterns of spatial and temporal structuring, additionally, they suggest that distinct population events and the action of evolutionary factors highly affected the craniofacial diversity over time. On the basis of different kinds of evidences, a model on the mode and tempo of the early peopling of the region and the subsequent population evolution throughout the Holocene is presented.

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          Most cited references129

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          N Mantel (1967)
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            MorphoJ: an integrated software package for geometric morphometrics.

            Increasingly, data on shape are analysed in combination with molecular genetic or ecological information, so that tools for geometric morphometric analysis are required. Morphometric studies most often use the arrangements of morphological landmarks as the data source and extract shape information from them by Procrustes superimposition. The MorphoJ software combines this approach with a wide range of methods for shape analysis in different biological contexts. The program offers an integrated and user-friendly environment for standard multivariate analyses such as principal components, discriminant analysis and multivariate regression as well as specialized applications including phylogenetics, quantitative genetics and analyses of modularity in shape data. MorphoJ is written in Java and versions for the Windows, Macintosh and Unix/Linux platforms are freely available from http://www.flywings.org.uk/MorphoJ_page.htm. © 2010 Blackwell Publishing Ltd.
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              Isolation by Distance.

              S. Wright (1943)
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                Author and article information

                Journal
                rcan
                Revista Colombiana de Antropología
                Rev. colomb. antropol.
                Instituto Colombiano de Antropología e Historia - ICANH (Bogotá, Distrito Capital, Colombia )
                0486-6525
                2539-472X
                June 2012
                : 48
                : 1
                : 189-232
                Affiliations
                [02] orgnameCONSEJO NACIONAL DE INVESTIGACIONES CIENTÍFICAS Y TÉCNICAS (CONICET) medelgado@ 123456fcnym.unlp.edu.ar
                [01] orgnameUNIVERSIDAD NACIONAL DE LA PLATA orgdiv1FACULTAD DE CIENCIAS NATURALES Y MUSEO orgdiv2DIVISIÓN ANTROPOLOGÍA
                Article
                S0486-65252012000100009 S0486-6525(12)04800109
                4b5ce18d-027e-4c64-b1ff-b9f91b1c5270

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 20 September 2011
                : 24 November 2011
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 78, Pages: 44
                Product

                SciELO Colombia

                Categories
                Dosier temáticos

                Northwest South America,geometric morphometrics,craniofacial morphology,early peopling,noroccidente de Sur América,morfometría geométrica,morfología craneofacial,poblamiento temprano

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