Hobbit Extinction: Drought and Human Competition
- This article discusses research suggesting a link between climate change and the decline,and eventual disappearance,of Homo floresiensis ("hobbits") on the island of Flores,Indonesia.
- * Rainfall Decline: Researchers analyzed the ratio of magnesium to calcium carbonate in cave formations to reconstruct past rainfall patterns.
- In essence, the research proposes that environmental pressures, driven by climate change, were a key factor in the fate of Homo floresiensis.
Summary of the Article:
This article discusses research suggesting a link between climate change and the decline,and eventual disappearance,of Homo floresiensis (“hobbits”) on the island of Flores,Indonesia.
Here are the key takeaways:
* Rainfall Decline: Researchers analyzed the ratio of magnesium to calcium carbonate in cave formations to reconstruct past rainfall patterns. They found a meaningful decline in rainfall on Flores between 76,000 and 61,000 years ago, which persisted until around 50,000 years ago.
* Stegodon Decline: The population of Stegodon (a type of extinct elephant) on the island decreased between 61,000 and 50,000 years ago, and vanished after a volcanic eruption.
* Hobbit Diet & Migration: Stegodon were a major food source for the hobbits. The researchers hypothesize that the rainfall decline led to the Stegodon migrating to areas with more consistent water sources, and the hobbits followed them.
* Volcanic eruption: A volcanic eruption around 50,000 years ago further impacted the island and likely contributed to the final disappearance of the hobbits.
* Connection: The study suggests that climate change (specifically, reduced rainfall) played a significant role in the hobbits’ decline by impacting their food supply, forcing them to migrate, and ultimately contributing to their extinction.
In essence, the research proposes that environmental pressures, driven by climate change, were a key factor in the fate of Homo floresiensis.