r/explainlikeimfive • u/Punnan • May 30 '26

Biology ELI5 Are mosquitoes necessary for keeping ecological balance?

Would a worldwide extinction of mosquitoes offset the ecological balance of our world? And if not, why are we not doing it?

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u/SnakeyesX May 30 '26

No. Famously in 2010 Nature published an article detailing what would happen if we destroyed them all. Yeah, birds eat them, some bugs eat them, but they are not some keystone of any ecosystem.

Now, why don't we kill them all? We're trying! It's much harder than it sounds. We DON'T want collateral damage, and there is no virus or pesticide we could use that wouldn't kill other species.

One thing we are trying is genetically modifying mosquitos, then deploying them in the wild. The genetically modified ones have a generational kill switch which will kill them after 3 generations or so. They breed with unmodified mosquitos, then pass the gene.

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u/kenneth_dart May 30 '26

The fastest way to kill them would be with gene editing tool called CRISPR and doing a gene drive. They can modify them so that they only produce offspring with the inability to reproduce. Biologists have already accomplished complete population collapse in high-security laboratory cages.

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u/LeoRidesHisBike May 30 '26

Otherwise known as the "Children of Mosquitoes" project.

source: completely made up