抄録
An archaeological reconnaissance was conducted on Tobi Island, a raised coral island southwest of the main Palau archipelago in Micronesia, in 2003. Linguistic studies show that the aboriginal language of Tobi belongs to the Micronesian subgroup, suggesting past cultural affinities. Historical background information for the island is reviewed and results of the reconnaissance, including test excavations, are presented. Most artifacts were made of shell, comprising such types as adzes, scrapers, a bead, fishhooks, lures, and ring ornaments. Additionally, coral files and fishhooks made of turtle carapace were documented. Food remains in the test excavations included chicken and other birds, rat, marine turtle, fish, and shellfish. Two radiocarbon dates place occupation of the island at least by the A.D. 1400s to 1500s. Contrary to the usual pattern found in Micronesia, no archaeological remains suggest external contact with the main Palau archipelago or other high islands during prehistoric times. The relatively extensive taro wetlands in Tobi’s interior plus its abundant marine resources may account for this difference.
