Abstract

BARRIENTOS, Gustavo  and  PEREZ, Sergio Iván. La dinámica del poblamiento humano del Sudeste de la Región Pampeana durante el Holoceno. Intersecciones antropol. [online]. 2002, n.3, pp.41-54. ISSN 1850-373X.

A central goal of this paper is to introduce and discuss useful concepts (e.g., local populations and metapopulations) for better understanding the dynamics of the human peopling of the Southeastern Pampean Region during the Holocene. Such a dynamic is conceived as resulting from alternating processes of population retraction and expansion (both demographic and geographic), occasionally including some significant events like local extinction and re-colonization. Two main processes, probably involving population replacement at the regional level, are considered. The first process occurred in the Mid Holocene (ca. 6000-4000 BP), and the second at the end of the Late Holocene (ca. 1000-500 BP). Both cases may involve the entry into the area of populations with a distinct degree of relatedness with respect to the pre-existent local populations, albeit arising from very different causes. On the basis of the biometric analysis of the facial skeletons of a diachronic sample from the southeastern Pampean Region and from northeastern Patagonia, two hypotheses derived from Barrientos' model (1997, 2001) for the holocene peopling of the area are empirically tested. The results obtained are in general agreement with the propositions advanced in those papers, supporting both the replacement of the original local population during the Mid Holocene, and the geographic expansion into the area of a population of Northern Patagonian origin during the Late Holocene.

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