Was there an Austroasiatic Presence in Island Southeast Asia prior to the Austronesian Expansion

No Austroasiatic languages are spoken in island SE Asia today, although we know from the Chamic languages of Vietnam and the SA Huynh culture that contact was extensive between the mainland and the islands. However, the diversity of Neolithic materials in various island sites has led some archaeologists to question the Austronesian ‘Neolithic package’ model, without advancing a positive alternative. This paper suggests that Austroasiatic speakers had reached the islands of SE Asia (Borneo?) prior to the AB expansion and that this can be detected in both the archaeology, the languages and the synchronic material culture. The paper will focus in part on the transfer of taro cultivation as part of this process.