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Restored bogs are an eco win, but boost mosquito numbers

12:20

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Mabel Gundlach
November 21, 2025

Rewetted peatlands have environmental benefits, yet also offer great breeding grounds for mosquitoes. DW joined researchers in Germany's northwestern Peene Valley to learn more about the bloodsucking insects.

Mosquitos thrive in damp, wet conditions, and the little insects can carry dangerous pathogens such as viruses and parasites.

Species like Culex pipiens can transmit the West Nile virus, while the Asian tiger mosquito spreads Zika, dengue and chikungunya viruses. However, when drained peatlands are rewetted, it represents a big win for climate protection and the environment.

But does restoring wetlands also increase health risks for humans and animals? DW's Science team joined the mosquito hunt and discovered that finding one species in particular could spark real scientific passion. 

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