Der Durst der Mücken nach menschlichem Blut hat mit dem zunehmenden Verlust der Artenvielfalt zugenommen, und diese Bevorzugung des Menschen erhöht das Risiko der Übertragung von Krankheitserregern erheblich

https://www.frontiersin.org/news/2026/01/15/mosquitoes-human-blood-biodiversity-loss

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  1. > Stretching along the Brazilian coastline, the Atlantic Forest is home to hundreds of species of birds, amphibians, reptiles, mammals, and fishes. However, due to human expansion, only about a third of the forest’s original area remains intact. As human presence drives animals from their habitats, mosquitoes that once fed on a wide variety of hosts might be finding new, human targets to quench their thirst for blood, a new Frontiers in Ecology and Evolution study found

    >As the Atlantic Forest dwindles due to deforestation and humans keep pushing into previously forested areas, many plants and animals disappear. As a result, mosquitoes change their habits and habitats and get closer to humans. “With fewer natural options available, mosquitoes are forced to seek new, alternative blood sources. They end up feeding more on humans out of convenience, as we are the most prevalent host in these areas,” explained Machado.
    >
    >Bites are more than itchy. In the study regions, mosquitoes transmit a variety of viruses – such as Yellow Fever, dengue, Zika, Mayaro, Sabiá, and Chikungunya – which cause diseases that seriously threaten human health and can have long-term adverse consequences. Investigating mosquito foraging behavior is fundamental for understanding the ecological and epidemiological dynamics of the pathogens they transmit, the researchers said.

    [Frontiers | Aspects of the blood meal of mosquitoes (Diptera: culicidae) during the crepuscular period in Atlantic Forest remnants of the state of Rio de Janeiro, Brazil](https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2025.1721533/full)

  2. FloridaGatorMan on

    One of the more straight lined natural selection examples. Right up there with darker colored moths at the beginning of the Industrial Revolution.

    Fewer other animals to feed on > mosquitos who are more attracted to humans have an advantage > higher numbers over time of human biting mosquitos.

    Just like the moths, I would expect near big cites there is an extreme bottleneck for mosquitos that are less attracted to humans.

  3. The time has come to eliminate mosquitoes. All public street lights could be outfitted with lasers which track wingbeat patterns to only hit mosquitoes. Combine with a large dragonfly breeding program at sites where mosquitoes are suspected to spawn

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