Easter Island ancient people didn’t die off from destroying their ecosystem, new study confirms
07/20/2017 // Russel Davis // Views

Contrary to popular belief, ancient inhabitants of Easter Island or Rapa Nui in Chile did not recklessly trash their ecosystem that lead to their eventual collapse, a recent study revealed. "The traditional story is that over time the people of Rapa Nui used up their resources and started to run out of food. One of the resources that they supposedly used up was trees that were growing on the island. Those trees provided canoes and, as a result of the lack of canoes, they could no longer fish. So they started to rely more and more on land food. As they relied on land food, productivity went down because of soil erosion, which led to crop failures…painting the picture of this sort of catastrophe. That's the traditional narrative," study co-author Professor Carl Lipo told NewAtlas.com.

In order to debunk this misconception, Lipo and his team examined human, faunal, and botanical specimen taken from the archaeological sites Anakena and Ahu Tepeu on Rapa Nui. The remains date back from c. 1400 AD to the historic period. The research team then conducted bulk carbon and nitrogen isotope analyses as well as amino acid compound specific isotope analyses to examine the collagen isolated from prehistoric human and faunal bone.

The analyses were meant to evaluate how the ancient civilization used marine and terrestrial resources. The same processes were carried out on archaeological and modern botanical and marine samples in order to determine the area's local environment.

Series of analyses refute previous claims of habitat destruction

The series of carbon and nitrogen analyses revealed that marine resources were accounted for about 50 percent of the protein in human diets. The rate was significantly higher than previous estimates. This also meant that ancient Rapa Nui people have been fishing for longer periods than previously thought. In addition, the research team found that the food they used to cultivate on land came from modified, enriched soil and were more productive than previous estimates. According to the research team, this demonstrates that the people understood how to fertilize the land.


The findings demonstrate that ancient Easter Island people had wide knowledge of improving poor soil fertility, promoting environmental conditions, and creating a sustainable food supply, the research team noted. They also stressed that the activities suggest a certain degree of adaptability and resilience among the ancient inhabitants, debunking a long held notion of ecocide. While the eventual collapse of Rapa Nui civilization serves as a precautionary tale on the effects of environmental destruction, these people should not be dismissed as reckless and careless, the researchers added.

"The Rapa Nui people were, not surprisingly, smart about how they used their resources. And all the misunderstanding comes from our preconceptions about what subsistence should look like...And it didn't look like what they thought, so they assumed something bad had happened...It continues to support the new narrative that we've been finding for the past ten years," Professor Lipo said in a separate article on the Science Daily website.

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