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originally posted by: bloodymarvelous
Maybe there was habitation in the ice age by some moderately advanced culture. Maybe there wasn't. But if we just jump to that, we end up missing out on all that interesting history that happens in between, right?
High-precision radiocarbon dating shows recent and rapid initial human colonization of East Polynesia
Conclusions Improvements in the reliability of radiocarbon dating, including greater rigor in the selection, identifi cation and pre-treatment of samples, together with a rapid increase in the total size of the radiocarbon date assemblage for East Polynesia, provide the conditions necessary for constructing a reliable model of the regional chronology of colonization. The model presented here has the advantages of a geographically wide coverage and a large sample of radiocarbon dates that was selected systematically by the elimination of poor quality and imprecise data. The results show that, after a relatively brief period of establishment in central East Polynesia, there was a remarkably rapid and extensive dispersal in the thirteenth century A.D. to the remaining uninhabited islands. This rate of human expansion is unprecedented in oceanic prehistory. Our model, although falsifiable, is likely to prove robust with further high precision radiocarbon dating of short-lived materials from those East Polynesian is- lands that currently lack secure chronologies based on such materials.
In a study focused on the origin of Ipomoea batatas (L.) Lam. (the sweet potato) and its close relatives , the authors claimed that a specimen of sweet potato collected by Banks and Solander in 1769 in Polynesia was distinct and along with some other varieties had levels of genetic variation of more than 100,000 years. This timeframe, along with several other lines of evidence, was interpreted, by the authors, as questioning human-mediated transport of the sweet potato to Polynesia within the last 1,000 years. This aspect of the paper received widespread media coverage as well as a number of critical remarks, and correspondence. The criticism questioned whether claims in the paper were justified. Here, three authors from the paper take the opportunity to fully explain the reasoning for calling into question the need to invoke human mediated transport of the sweet potato to Polynesia.
originally posted by: punkinworks10
a reply to: Hanslune
The part of the recent sweetpotato paper that I found entertaining was the assertian that the polynesian sweet potato was widepsread in the pacific islands when settled by the polynesians, yet not one instance of the "progenitor" strain has ever been found anywhere in the pacific, anywhere or in any time period.
One would think it would still be around, just as the progenitor of the other strains is still found in the wilds of SA and carribean.
And have you seen the latest in the chicken dance? a re date that shows the bones are too old to have been colonial period.