Why eradication of mosquitoes is not the best idea

Mosquitoes have co-evolved with many species, so there are likely other organisms that depend on them as a food source -- thus wiping out the species may have wider effects, the researchers said.

Published: 13th July 2017 07:48 PM  |   Last Updated: 13th July 2017 07:48 PM   |  A+A-

Zika, dengue and chikungunya are spread by the same mosquito type and have similar early symptoms. | AP File Photo

By IANS

NEW YORK: Mosquitoes, who play a major role in various ecosystems, should not be simply wiped out -- instead their ability to transmit diseases should be suppressed, a team of scientists has said.

Mosquitoes have co-evolved with many species, so there are likely other organisms that depend on them as a food source -- thus wiping out the species may have wider effects, the researchers said.

"To yank (mosquitoes) out abruptly, I don't know what that does as they are a large part of the biomass in many ecosystems," Catherine Hill, Professor at the Purdue University in US state of Indiana, said in a statement. 

Thus, developing a non-lethal pesticide that will only affect the biology of the mosquito, while reducing its ability to transmit to another host, without killing the species or interfering with other life forms may hold the solution, Hill added.

Further, Hill pointed out that while mosquitoes are in their aquatic stage, they serve as a food source for fish and predatory insects. During this stage, mosquitoes also serve as filter feeders, which results in organic matter being turned over, making them excellent converters in an ecosystem.

In their terrestrial stage, mosquitoes serve as food for birds, bats, salamanders, lizards, frogs and other animals. 

Moreover, according to Hill, there are several thousand species of mosquitoes worldwide, with only a small percentage of those species carrying diseases. 

But, very little is known about the species that do not transmit disease, so this leaves a lot of unanswered questions concerning what would happen if mosquitoes were wiped out, Hill said. 


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