Intermittence for Humans Spreading 45,000 Years Ago: From Eurasia to the Americas

Document Type

Brief Communication

Authors

J. C. Flores, Universidad de Tarapacá, Arica, ChileFollow

Open Access Pre-Print

http://digitalcommons.wayne.edu/humbiol_preprints/38/

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 v_o = 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 (v_o ≈ 0.75 km/yr).

Recommended Citation

Flores, J. C. (2013) "Intermittence for Humans Spreading 45,000 Years Ago: From Eurasia to the Americas," Human Biology: Vol. 85: Iss. 5, Article 9.
Available at: https://digitalcommons.wayne.edu/humbiol/vol85/iss5/9