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Pythons Threaten Endangered Florida Rat Extinction
28 May
Summary
- Burmese pythons imperil the endangered Key Largo woodrat population.
- Woodrat nests may contain novel bacteria beneficial for medical research.
- Opossums with tracking collars help locate invasive pythons.

Burmese pythons are critically endangering the Key Largo woodrat, a rodent found only in Florida's Key Largo hammocks. Since Hurricane Irma in 2017, which likely aided python dispersal, woodrat populations have struggled to recover. Experts warn that unchecked python presence could lead to the woodrat's extinction within decades.
The Key Largo woodrat is vital as an "ecosystem engineer," constructing large nests that provide habitat for other species, including the endangered Key Largo cotton mouse, insects, and birds. These nests also harbor unique microbial communities with potential for medical research.
Pythons, notoriously difficult to find due to their camouflage and ability to hide in Key Largo's coral rock formations, present a significant removal challenge. A new strategy involves fitting opossums with tracking collars to pinpoint pythons that prey on them, aiding in their removal and helping to protect the endangered woodrat.
This innovative approach aims to reverse the decline of the Key Largo woodrat, offering optimism in managing invasive python populations. The ongoing efforts are crucial for preserving the unique biodiversity of the Key Largo region and the potential scientific discoveries within the woodrat's nests.