The Invasion of Burmese Pythons in Southern Florida has been well documented over the last few years, and as they increase in number in the Everglades, numbers of many mammals have diminished. The addition of an extra top predator such as the Burmese Python, the second largest snake in the world, growing up to about 19 (19!!!) feet long, has dire implications for the ecosystem of the Everglades and of Florida, but they pose a danger to the humans in the area as well!
That’s right, the Burmese Pythons are causing problems for Floridians. No, Floridians are not soon-to-be victims of a Python takeover, but the disruption of the Everglade ecosystem has begun to become apparent. As Burmese Pythons have lowered numbers of countless different mammals across the Everglades, mosquitoes have less variety among the animals they drink the blood from, per ScienceDaily. As a result, Mosquitoes have been taking more blood from the mammals that remain, most notably the hispid cotton rat. Mosquitoes in the area are now taking more than 75 percent of their meals from this rat, which is a massive 422 percent increase since 1979. Burmese Pythons were first reported in the area in the 1980s. The hispid cotton rat, which so many mosquitoes feed on now, hosts the Everglades Virus, which is transferred to humans by mosquitoes. As if we didn’t have enough reasons to hate mosquitoes. The hispid cotton rat is one of the only hosts for the virus, which causes “fever, headache and even encephalitis” in humans, according to the same ScienceDaily Article.
This new research is not only relevant because of the increased hatred we all now have for mosquitoes, though. It also represents a landmark in research on invasive species. Nathan Burkett-Cadena informs ScienceDaily that “As far as I am aware, this is the first time that researchers have found that an invasive predator (such as the python) has caused an increase in contact between mosquitoes and hosts of a human pathogen.”
So, python invasions lead to more virus-carrying mosquitoes in the Everglades. Does this make you as uncomfortable as it makes me? Let me know what you think, leave a comment. I for one am glad to be far away from both the pythons and the Everglade mosquitoes.
James Gathany for CDC https://commons.wikimedia.org/wiki/File:Sigmodon_hispidus1.jpg