New paleogenomic research conducted by an international team rules out likelihood that inhabitants of Easter Island intermixed with South Americans prior to arrival of Europeans on the island in 1722, even though genetic traces of South Americans are found in present-day indigenous residents.

See the source article by following the link below:
New paleogenomic research conducted by an international team rules out likelihood that inhabitants of Easter Island intermixed with South Americans prior to arrival of Europeans on the island in 1722, even though genetic traces of South Americans are found in present-day indigenous residents.