www.mpg.de/6818105/Holocene-gene-flow_India-Australia

Gene flow from India to Australia about 4,000 years ago
Long before Europeans settled in Australia humans had migrated from the Indian subcontinent to Australia and mixed with Australian aborigines

January 14, 2013
Australia is thought to have remained largely isolated between its initial colonization around 40,000 years ago and the arrival of Europeans in the late 1800s. A study led by researchers of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, now finds evidence of substantial gene flow between Indian populations and Australia about 4,000 years ago. In addition, the researchers found a common origin for Australian, New Guinean and the Philippine Mamanwa populations. These populations followed an early southern migration route out of Africa, while other populations settled in the region only at a later date.
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This makes sense and agrees well with the dingo introduction date.

Interesting article, dv.

How did they get here?

Divine Angel said:

How did they get here?

http://www.google.com.au/imgres?imgurl=http://upload.wikimedia.org/wikipedia/commons/e/ef/Sunda-sahul-wallacea-migration.png&imgrefurl=http://commons.wikimedia.org/wiki/File:Sunda-sahul-wallacea-migration.png&h=725&w=800&sz=67&tbnid=KVl9hVQNlF6VjM:&tbnh=90&tbnw=99&zoom=1&usg=__xivPJKuU5SbILbzJPf9FuQlHDoc=&docid=5DsQEQVxvXJNKM&sa=X&ei=s6NnUei4LYWeiAeB3YDYDw&ved=0CEsQ9QEwBA&dur=855

DA, here’s an interactive view of the sea levels around Australia over the last 100,000 years or so.

http://sahultime.monash.edu.au/explore.html

Divine Angel said:

How did they get here?

Presumably by boat, canoe or raft – island hopping through SE Asia till they got to PNG, then across the Torres by the same method into northern Australia.

sibeen said:

DA, here’s an interactive view of the sea levels around Australia over the last 100,000 years or so.

http://sahultime.monash.edu.au/explore.html

According to that model, 4000 years ago was pretty much what it is today.

Sorry, I thought you were asking about the originals.

400 years ago isn’t all that long. Boat technology would have been reasonable advanced. Easily high tech enough to do the island hopping from India.

Apologies for the hijack, but with New Caledonia and Vanuatu, how come their coastlines aren’t noticeably affected by those sea levels?

Divine Angel said:

Apologies for the hijack, but with New Caledonia and Vanuatu, how come their coastlines aren’t noticeably affected by those sea levels?

I can only imagine that the islands have very steep sides, and therefore their landmass isn’t massively effected by different sea levels.

Vanuatu is volcanic in origin but New Caledonia is part of Gondwana. I guess the mountainous terrain is the most logical explanation.

Makes sense.. india was floating up past Australia on its way to make the himalayas about 4000 years ago.

Frankly, my dear, I don’t give a pappadam.

party_pants said:

Divine Angel said:

How did they get here?

Presumably by boat, canoe or raft – island hopping through SE Asia till they got to PNG, then across the Torres by the same method into northern Australia.

So there were illegal boat immigrants way bvack then?

bob(from black rock) said:

party_pants said:

Divine Angel said:

How did they get here?

Presumably by boat, canoe or raft – island hopping through SE Asia till they got to PNG, then across the Torres by the same method into northern Australia.

So there were illegal boat immigrants way bvack then?

They relied on the legal fiction of Terra Nullius back then.

party_pants said:

bob(from black rock) said:

party_pants said:

Presumably by boat, canoe or raft – island hopping through SE Asia till they got to PNG, then across the Torres by the same method into northern Australia.

So there were illegal boat immigrants way bvack then?

They relied on the legal fiction of Terra Nullius back then.

The concept of legal inhabitants was settled with spears or negotiations.

roughbarked said:

party_pants said:

bob(from black rock) said:

So there were illegal boat immigrants way bvack then?

They relied on the legal fiction of Terra Nullius back then.

The concept of legal inhabitants was settled with spears or negotiations.

Or smallpox.

Divine Angel said:

roughbarked said:

party_pants said:

They relied on the legal fiction of Terra Nullius back then.

The concept of legal inhabitants was settled with spears or negotiations.

Or smallpox.

that came under negotiations.

Dropbear said:

Makes sense.. india was floating up past Australia on its way to make the himalayas about 4000 years ago.

For a YEC model, 4000 years since the Indian-Eurasia continental collision sounds plausible.

neomyrtus_ said:

Dropbear said:

Makes sense.. india was floating up past Australia on its way to make the himalayas about 4000 years ago.

For a YEC model, 4000 years since the Indian-Eurasia continental collision sounds plausible.

you can argue with me, but you can’t argue with christian science.

Only 2000 years after the Great Flood.

boomshanka

neomyrtus_ said:

Only 2000 years after the Great Flood.

surely the water level had dropped by then?

You’re right that that time matches the dingo introduction date. I’ve also noted that the Australian “yellow dog dingo” shares a common appearance with the Indian wolf.

By the way, I know a Tamil Indian, Brahman caste, with very dark skin who could be mistaken in appearance for an Australian Aboriginal man (well, a half-blood). Sort of like this (without the scars): http://www.nairaland.com/attachments/293685_Black_Man_jpg63f0d9303c0b7bc2d435d9cc059548d2

I don’t have access to the PNAS article quoted, apart from the abstract:
http://www.pnas.org/content/110/5/1803.short

The Australian continent holds some of the earliest archaeological evidence for the expansion of modern humans out of Africa, with initial occupation at least 40,000 y ago. It is commonly assumed that Australia remained largely isolated following initial colonization, but the genetic history of Australians has not been explored in detail to address this issue. Here, we analyze large-scale genotyping data from aboriginal Australians, New Guineans, island Southeast Asians and Indians. We find an ancient association between Australia, New Guinea, and the Mamanwa (a Negrito group from the Philippines), with divergence times for these groups estimated at 36,000 y ago, and supporting the view that these populations represent the descendants of an early “southern route” migration out of Africa, whereas other populations in the region arrived later by a separate dispersal. We also detect a signal indicative of substantial gene flow between the Indian populations and Australia well before European contact, contrary to the prevailing view that there was no contact between Australia and the rest of the world. We estimate this gene flow to have occurred during the Holocene, 4,230 y ago. This is also approximately when changes in tool technology, food processing, and the dingo appear in the Australian archaeological record, suggesting that these may be related to the migration from India.

but here’s a public access article from last year by the same authors.
http://www.pnas.org/content/109/12/4574.full

Although the Austronesian expansion had a major impact on the languages of Island Southeast Asia, controversy still exists over the genetic impact of this expansion. The coexistence of both Asian and Papuan genetic ancestry in Eastern Indonesia provides a unique opportunity to address this issue. Here, we estimate recombination breakpoints in admixed genomes based on genome-wide SNP data and date the genetic admixture between populations of Asian vs. Papuan ancestry in Eastern Indonesia. Analyses of two genome-wide datasets indicate an eastward progression of the Asian admixture signal in Eastern Indonesia beginning about 4,000–3,000 y ago, which is in excellent agreement with inferences based on Austronesian languages. The average rate of spread of Asian genes in Eastern Indonesia was about 0.9 km/y. Our results indicate that the Austronesian expansion had a strong genetic as well as linguistic impact on Island Southeast Asia, and they significantly advance our understanding of the biological origins of human populations in the Asia–Pacific region. … etc