%0 Journal Article
%T Microevolution of human archaic groups of Arica, northern Chile, and its genetic contribution to populations from the Formative Period
%A VARELA
%A H¨¦CTOR HUGO
%A COCILOVO
%A JOS¨¦ ALBERTO
%A SANTORO
%A CALOGERO M
%A ROTHHAMMER
%A FRANCISCO
%J Revista chilena de historia natural
%D 2006
%I Springer
%R 10.4067/S0716-078X2006000200005
%X the microevolution of the archaic populations from chile's northern coast and its morphological contribution to formative period groups was studied. the sample comprised 181 individuals belonging to two archaic (morro-uhle and morro 1-1/6) and one formative (playa miller-7 [plm-7]) series of the coast and one sample from the formative (alto ram¨ªrez) exhumed at the azapa valley. a total of 29 metric variables of the cranium were analyzed. biological variability was assessed using discriminant analysis and mahalanobis' d2 distance stadistic (mds). population structure was inferred using a method based on quantitative genetic theory that predicts a lineal relationship between average within-group phenotypic variance and group distance to the population centroid. the four samples studied proved to be different from a morphologic point of view. the greatest distance was observed between plm-7 (coast formative) and alto ramirez (valley formative), the least between morro-uhle and morro 1-1/6, the remaining distances presenting intermediate values. regarding the total population, the most divergent group was alto ram¨ªrez and the least divergent was morro1-1/6. a gradual biologic change was observed between archaic (morro uhle and morro 1-1/6) and coastal formative populations (plm-7) pointing to a morphological (genetic) contribution of archaic fishermen to formative population of chile's northern coast, without excluding gene flow from other groups of the south central andean area
%K quantitative cranial traits
%K late archaic
%K formative
%K northern chile.
%U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0716-078X2006000200005&lng=en&nrm=iso&tlng=en