Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

New research forces U-turn in population migration theory
University of Leeds ^ | May 23, 2008 | Unknown

Posted on 05/23/2008 10:49:58 AM PDT by decimon

Research led by the University of Leeds has discovered genetic evidence that overturns existing theories about human migration into Island Southeast Asia (covering the Philippines, Indonesia and Malaysian Borneo) - taking the timeline back by nearly 10,000 years.

Prevailing theory suggests that the present-day populations of Island Southeast Asia (ISEA) originate largely from a Neolithic expansion from Taiwan driven by rice agriculture about 4,000 years ago - the so-called "Out of Taiwan" model.

However an international research team, led by the UK’s first Professor of Archaeogenetics, Martin Richards, has shown that a substantial fraction of their mitochondrial DNA lineages (inherited down the female line of descent), have been evolving within ISEA for a much longer period, possibly since modern humans arrived some 50,000 years ago.

Moreover, the lineage can be shown to have actually expanded in the opposite direction - into Taiwan - within the last 10,000 years.

Says Professor Richards: “I think the study results are going to be a big surprise for many archaeologists and linguists on whose studies conventional migration theories are based. These population expansions had nothing to do with agriculture, but were most likely to have been driven by climate change - in particular, global warming and the resulting sea-level rises at the end of the Ice Age between 15,000-7,000 years ago.”

At this time the ancient continent known as Sundaland – an extension of the Asian landmass as far as Borneo and Java – was flooded to create the present-day archipelago.

Although sea-level rise no doubt devastated many communities, it also opened up a huge amount of new coastal territory for those who survived(1). The present-day coastline is about twice as great as it was 15,000 years ago.

“Our genetic evidence suggests that probably from about 12,000 years ago these people began to recover from the natural catastophes and expanded greatly in numbers, spreading out in all directions, including north to Taiwan, west to the Southeast Asian mainland, and east towards New Guinea. These migrations have not previously been recognised archaeologically, but we have been able to show that there is supporting evidence in the archaeological record too.”

###

The interdisciplinary research team comprised colleagues from Leeds, Oxford, Glasgow, Australia and Taiwan. The study was funded by the Bradshaw Foundation and the European Union Marie Curie Early Stage Training program and is published in the current issue of Molecular Biology and Evolution (MBE).


TOPICS: History; Science
KEYWORDS: 2seriuosly; ancientautopsies; ancientnavigation; andamanislands; archaeogenetics; borneo; coconuts; dont; donttake2; emptydna; epigraphyandlanguage; glyphs; godsgraves; godsgravesglyphs; helixmakemineadouble; indonesia; isea; java; malaysia; martinrichards; mitochondrialdna; mtdna; navigation; neolithic; newguinea; northsentienlisland; outoftaiwan; papuanewguinea; philippines; sundaland; taiwan
Navigation: use the links below to view more comments.
first 1-2021-22 next last

1 posted on 05/23/2008 10:49:59 AM PDT by decimon
[ Post Reply | Private Reply | View Replies]

To: blam; SunkenCiv

Take-a-left-at-the-next-archipelago ping.


2 posted on 05/23/2008 10:52:47 AM PDT by decimon
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon; blam; StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 3AngelaD; ...

· join list or digest · view topics · view or post blog · bookmark · post a topic ·

 
Gods
Graves
Glyphs
Thanks decimon. I think blam will agree, this is the topic of the week. :')

To all -- please ping me to other topics which are appropriate for the GGG list.
GGG managers are Blam, StayAt HomeMother, and Ernest_at_the_Beach
 

· Google · Archaeologica · ArchaeoBlog · Archaeology magazine · Biblical Archaeology Society ·
· Mirabilis · Texas AM Anthropology News · Yahoo Anthro & Archaeo ·
· History or Science & Nature Podcasts · Excerpt, or Link only? · cgk's list of ping lists ·


3 posted on 05/23/2008 10:58:58 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon
GW + SLR = RG,
where
GW = global warming
SLR = sea level rise, and
RG = research grant.

On the other hand, land subsidence and subsequent flooding due to seismic activity yields no grant.

I've been there with research grants. Gotta use those buzz words.

4 posted on 05/23/2008 11:12:44 AM PDT by Chaguito
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon
These population expansions had nothing to do with agriculture, but were most likely to have been driven by climate change - in particular, global warming and the resulting sea-level rises at the end of the Ice Age between 15,000-7,000 years ago.”

What, Bush was President back then? Who knew?

5 posted on 05/23/2008 11:20:21 AM PDT by jalisco555 ("My 80% friend is not my 20% enemy" - Ronald Reagan)
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon

YEC INTREP


6 posted on 05/23/2008 11:51:17 AM PDT by LiteKeeper (Beware the secularization of America; the Islamization of Eurabia)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Chaguito

Agreed, then their is this:

Increased agricultural production means more water buffalo to harvest the rice and carry it to market, leading to more cattle flatulence, leading to global warming.


7 posted on 05/23/2008 12:00:06 PM PDT by DariusBane (Ronaldus Magnus: The Great Communicator, Philosopher of Conser, Bane of Moscow, Defender of Grenada)
[ Post Reply | Private Reply | To 4 | View Replies]

To: decimon
If "At this time the ancient continent known as Sundaland – an extension of the Asian landmass as far as Borneo and Java – was flooded to create the present-day archipelago."

And "The present-day coastline is about twice as great as it was 15,000 years ago."

How come sundaland didn't reappear when things cooled down and all those other shorelines expanded?

8 posted on 05/23/2008 12:22:11 PM PDT by norton
[ Post Reply | Private Reply | To 1 | View Replies]

To: norton; All

“How come Sundaland didn’t reappear when things cooled down and all those other shorelines expanded?”

Sundaland didn’t reappear, because things did not cool down. Most people, and unfortunately a lot of them are archeologists and anthropologists and should know better, don’t realize that at the end of the last ice age the oceans were 400 feet lower than they are today. As the water rose, many hills became islands, creating much more shoreline than existed previously.


9 posted on 05/23/2008 12:39:00 PM PDT by gleeaikin
[ Post Reply | Private Reply | To 8 | View Replies]

To: decimon

Is that the archipelago with the Exxon station or the Wal-Mart on the corner?


10 posted on 05/23/2008 2:28:00 PM PDT by Pharmboy (Democrats lie because they must.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Pharmboy
Is that the archipelago with the Exxon station or the Wal-Mart on the corner?

Smitty's. Smitty's Something-or-other.

11 posted on 05/23/2008 2:31:08 PM PDT by decimon
[ Post Reply | Private Reply | To 10 | View Replies]

To: AdmSmith; AnalogReigns; Cacique; caryatid; Celtjew Libertarian; CobaltBlue; concentric circles; ...
Genetic
Genealogy
Send FReepmail if you want on/off GGP list
Marty = Paternal Haplogroup O(2?)(M175)
Maternal Haplogroup H
GG LINKS:
African Ancestry
DNAPrint Genomics
FamilyTree DNA
mitosearch
Nat'l Geographic Genographic Project
Oxford Ancestors
RelativeGenetics
Sorenson Molecular Genealogy Foundation
Trace Genetics
ybase
ysearch
The List of Ping Lists

12 posted on 05/23/2008 2:37:14 PM PDT by martin_fierro (< |:)~)
[ Post Reply | Private Reply | To 1 | View Replies]

To: martin_fierro

Please add me to the genetic genealogy ping list.


13 posted on 05/23/2008 2:49:18 PM PDT by tbw2 ("Sirat: Through the Fires of Hell" by Tamara Wilhite - on amazon.com)
[ Post Reply | Private Reply | To 12 | View Replies]

To: decimon; SunkenCiv
Sundaland


14 posted on 05/23/2008 2:57:06 PM PDT by blam
[ Post Reply | Private Reply | To 2 | View Replies]

To: tbw2

You’re already on.


15 posted on 05/23/2008 3:00:06 PM PDT by martin_fierro (< |:)~)
[ Post Reply | Private Reply | To 13 | View Replies]

To: norton
How come sundaland didn't reappear when things cooled down and all those other shorelines expanded?

Because there hasn't been another ice age yet to tie up all that ocean water in the form of ice and snow. We're still in the interglacial period, though probably in the last bit of it.
16 posted on 05/23/2008 3:12:04 PM PDT by aruanan
[ Post Reply | Private Reply | To 8 | View Replies]

To: aruanan
Uh, OK, makes sense.

(But)

Point was that in one paragaph a land mass was still submerged and in another the shores of facing land masses had expanded (due to lower water levels - or?)

Wrong?

17 posted on 05/23/2008 7:41:02 PM PDT by norton
[ Post Reply | Private Reply | To 16 | View Replies]

To: decimon
There is currently a very under-worked excavation site on Taiwan which looks like a settlement dating back 30,000 years or more.
Unfortunately it is, as I said, very under-worked and reported on.
18 posted on 05/23/2008 9:51:55 PM PDT by Tainan (Talk is cheap. Silence is golden. All I got is brass...lotsa brass.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: decimon

btt


19 posted on 05/23/2008 10:01:33 PM PDT by Cacique (quos Deus vult perdere, prius dementat ( Islamia Delenda Est ))
[ Post Reply | Private Reply | To 1 | View Replies]

To: martin_fierro

Hey, that’s somethin’... am I on the GA list? Of course, I wouldn’t need to be in this particular topic, but still...

No need to add me to the Ray Bradbury ping list though. ;’)


20 posted on 05/23/2008 11:25:50 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
[ Post Reply | Private Reply | To 12 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-22 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson