Oceania Part 3: the Chamorro people of Micronesia

Micronesia is next on our list of Oceania. This week, special attention will be paid to the Chamorro people native to the Mariana Islands. Demographic data shows that Chamorro people live predominantly in present day Guam and the Northern Mariana Islands.

While there has been a plethora of potential theories for the origins of some the groups living in present day Micronesia, recent DNA sampling from Dr. Vilar seems to suggest that the origin of ethnic Chamorro people is most likely from Indonesia. The scholarly source tells us that “92% of Chamorros belong to haplogroup E”, which is not common at all in Oceania. The source of this information can be found here:


In simplest terms, other groups such as Spanish, Mexican, and Filipino individuals visited Guam, and some of these individuals mixed with local populations. Dr. Vilar mentioned that Native North American DNA was found in many of the Chamorro individuals who were tested. According to him, the most likely reason for this was the fact that the Spaniards brought Mexicans to the Mariana Islands, and mixing took place. As a result of different groups coming to the Mariana Islands, it is also likely that many Chamorro people have some European DNA as well.

This article, written by Maria Hernandez and Mark Scott can be found here: