@article{oai:ir.kagoshima-u.ac.jp:00008181,
 author = {新田, 栄治 and NITTA, Eiji},
 issue = {2},
 journal = {南海研紀要, Memoirs of the Kagoshima University Research Center for the South Pacific},
 month = {Mar},
 note = {中尾佐助教授退官記念号, Reao is an atoll lying at the eastern extremity of Tuamotu Archipelago. Since the
first habitation on Reao in 11th and 12th centuries, people have lived there intermittently.
Reao people subsisted on the strict natural environment of the atoll.
The task of this article is to clarify prehistoric subsistence pattern, ecosystem and their transition at the prehistoric times from the view point of archaeology.
First, there remain many sites showing Reao people's fishing activities and agriculture. Sites concerning the fishery are middens which contain a lot of fish bone and
turtle bone, shellmounds of Tridacna shells near the lagoon shore, stone fishweirs and
ponds, and watchplatforms for turtles at the ocean side. And some fishing implements
were found. Agricultural remains are taro cultivation pits. This means that Reao
people subsisted on mainly marine resources and taro (Colocasia esculenta)., Second, Reao people exploited mainly the reef and the lagoon, fishing a lot of species of fish in the reef and gathering Tridacna shells in the lagoon. For the atoll
people, marine resources are stable and easy-gathering food, but not efficient for
calorific value.
Third, taro cultivation was the most important food activity on Reao. Taro, the
staple food, is a very efficient food for calorific value and support the population.
All crop from the taro cultivation pits of Reao yield enough food to support 200
people, the estimated population before the European contact.
Conclusion, on the ground of C-14 datations, Habitation Stage 1 is the end of
11th century to 12th century. Reao people depended on marine resources. Habitation Stage 2 is the end of 16th century to the end of 17th century. They began to
dig taro cultivation pits. Habitation Stage 3 is the end of 18th century to the middle of 19th century.
Taro cultivation expanded and reached the peak.},
 pages = {174--210},
 title = {先史レアオ島の居住と自給自足形態},
 volume = {3},
 year = {1983}
}