Human ecological niches and ranges during the LGM in Europe derived from an application of eco-cultural niche modeling
Journal:
Journal of Archaeological Science
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xx
Year:
2007
Pages:
1-11
Keywords:
Eco-cultural niche modeling; GARP; LGM; Solutrean; Epigravettian; Western Europe; Upper Paleolithic; Human adaptation
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Abstract:
We apply eco-cultural niche modeling (ECNM), an heuristic approach adapted from the biodiversity sciences, to identify habitable portions of the European territory for Upper Paleolithic hunter-gatherers during the Last Glacial Maximum (LGM), circumscribe potential geographic extents of the Solutrean and Epigravettian technocomplexes, evaluate environmental and adaptive factors that influenced their distributions, and discuss this method's potential to illuminate past humaneenvironment interaction. Our ECNM approach employed the Genetic Algorithm for Rule-Set Prediction (GARP) and used as input a combination of archaeological and geographic data, in conjunction with high-resolution paleoclimatic simulations for this time frame. The archaeological data consist of geographic coordinates of sites dated by Accelerator Mass Spectrometry to the LGM and attributed to the Solutrean and Epigravettian technocomplexes. The areas predicted by ECNM consistently outline the northern boundary of human presence at 22,000e20,000 cal BP. This boundary is mainly determined by climatic constraints and corresponds well to known southern limits of periglacial environments and permafrost conditions during the LGM. Differences between predicted ecological niches and known ranges of the Solutrean and Epigravettian technocomplexes are interpreted as Solutrean populations being adapted to colder and more humid environments and as reflecting influences of ecological risk on geographic distributions of cultures. 2007 Elsevier Ltd. All rights reserved.
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[PublicMultimediaSpace:PDF Banks et al 2007^Banks_etal_2007_LGM.pdf]
