title: Intermittence for humans spreading 45,000 years ago: from Eurasia to the Americas.
abstract: From northeastern Eurasia to the Americas, a three-stage spread of modern humans is considered through large-scale intermittence (exploitation/relocation). Conceptually, this work supports intermittence as a real strategy for colonization of new habitats. For the first stage, northeastern Eurasia travel, we adapt our model to archaeological dates determining the diffusion coefficient (exploitation phase) as D = 299.44 km2/yr and the velocity parameter (relocation phase) as vo = 4.8944 km/yr. The relative phase weight (✧0.46) between both kinds of motions is consistent with a moderate biological population rate (r΄ ✧ 0.0046/yr). The second stage is related to population fragmentation. The last stage, reaching Alaska, corresponds essentially to relocation (vo ✧ 0.75 km/yr).
authors: Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7-D, Arica, Chile.
authors: J C
authors: JC
authors: Flores
authors: Department Pathology, University Estadual Paulista, São Paulo, Brazil.
authors: Renato
authors: R
authors: Hopp
mesh_terms: D000413:Alaska; D000569:Americas; D001106:Archaeology; D001208:Asia; D004641:Emigration and Immigration / Q000266:history*; D049690:History, Ancient; D006801:Humans; D008962:Models, Theoretical; D011157:Population Dynamics / Q000266:history; D012800:Siberia