With Support From Center for
FROM A FIELD IN
By Michael Field
Head out east from Port Vila on the main road and just
before you get to the White Sands Golf Club with its marvelous beaches, there
is a place called Teouma.
Attractive enough, it really has not attracted much
attention until a bulldozer driver changed all that a few months ago.
Its unusual black soil attracted the attention of a prawn
farm developer who was collecting it to make embankments when the alert driver
noticed distinctive shards of pottery.
They were bits of "Lapita" pottery. Known for its
dentate style and named after a place in
It is associated with the mysterious "Lapita
people" who, it’s theorized, evolved into modern Polynesians—the world’s
biggest people by body mass.
Mixed in with the pottery were skeletons, some of them
without their heads.
The
It puts Teouma on a scale of
For Dr Hallie Buckley, of New Zealand’s University of Otago
Department of Anatomy and Structural Biology, who will lead an international
team analyzing the bones, including DNA extraction, the Teouma discovery
promises to shed more light on the puzzle of why a mysterious people moved
rapidly across the South Pacific to become the world’s youngest
race—Polynesians.
Buckley wonders if malaria might be found in the DNA and if
the people represented by the Teouma bodies were fleeing the disease.
"There is a lot of talk in the archaeological circles
about the role malaria had on the settlement of Pacific islands," she
says. "If we can extract malaria DNA from the bones, it will go a long way
to addressing these questions with some certainty."
Malaria, which kills three million people a year, has long
been a significant factor in population health.
"If malaria was present in pre-historic
For reasons not understood, the pre-Polynesian people moved
from Asia, probably Taiwan, through Melanesia so quickly over a 500-year period
that it’s called the "Express Train theory". They had little contact
with the Melanesians who had lived in their islands for up to 40,000 years on
the way to Polynesia’s scattered islands. There they created a highly
stratified culture complete with ornate chiefdoms not seen in Melanesia.
Buckley said the Teouma skeletons would be a vital clue in understanding
the interaction that went on between the environment and first peoples as there
had been no other people in Efate.
"Malaria probably had quite a significant and
insidious effect on colonization," she says, "particularly if the
people were trying to find a place free of malaria." The pathogen would
have affected their ability to work and limit their population growth.
"Once they got to Polynesia, with relatively lower
pathogen loads and no malaria whatsoever, then you see the development of highly
stratified societies, huge population growth and very big robust people."
The Teouma bodies seemed different from the modern
ni-Vanuatu people who are mostly Melanesian.
"Some of the skeletons from the site were incredibly
robust, similar to what I have seen of more recent Polynesian
collections," she says although stressing she had only had a preliminary
look.
A decade ago,
Sigatoka researchers noted how big the skeletons were,
suggesting that in the Express Train theory, only the big survived long cold
ocean voyages involved in settling Polynesia.
Islands Business Magazine: http://www.islandsbusiness.com