Mosquitoes are the small winged pests that feast on our blood. They are the reason why more than one million people die each year from the diseases they carry.

From the website,

“Malaria infects some 247 million people worldwide each year, and kills nearly one million. Mosquitoes cause a huge further medical and financial burden by spreading yellow fever, dengue fever, Japanese encephalitis, Rift Valley fever, Chikungunya virus and West Nile virus.”

Mosquitoes in the tundra have been known to fly in swarms so thick that caribou have been asphyxiated. Each caribou in a herd loses about one and a third cups of blood each day to mosquitoes. The swarms even affect the migration paths taken by caribou herds which move in an upwind direction to make it difficult for the mosquito swarms to follow them.

why mosquitoes important
So what good are they? Would the earth miss them if they went extinct? Since they’ve been around for about 100 million years, there’s been plenty of time for them to become fully integrated into the food chain, which means they are a part of the diet of many animals.

Some animals depend on them for their survival. Their larvae provide food for hundreds of species of fish. The feeding behavior of fish are instinctual, so without this bountiful and easy to catch food source, it’s questionable whether these fish would survive. The mosquitofish is too specialized at eating mosquitoes to survive without them.

Mosquitoes are also a food source for spiders, frogs, lizards, salamanders, and birds. A study on the martin found that the birds had more chicks in mosquito infested areas than in areas that were mosquito free.

Mosquitoes also pollinate plants. They contribute to the pollination of thousands of plant species and are the primary pollinator of a number of orchid
species. Although midges, also known as no-see-ums, are credited for the pollination of the cacao plant, mosquitoes have been found to improve cacao harvests. Thanks to them, the world has more chocolate.

While mosquitoes are helping the environment in the sense that they are part of the food chain and help pollinate plants, a number of scientists believe that the world would do just fine without the two hundred species (out of a total of 3,500) that bite humans. According to entomologist Joe Conlon, of the American Mosquito Control Association:

“If we eradicated them tomorrow, the ecosystems where they are active will hiccup and then get on with life. Something better or worse would take over.”


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Posted by Mark Contorno.


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