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The global fall of insects can see pests of pests, such as flies and cockroaches



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Get ready to see a lot more cockroaches and flies around your home.

This is a message from a leading biologist after a new scientific injuries survey of insects, which shows that "dramatic dropping rates" will be 40 percent of species in this world.

A study published in the Biological Conservation Journal has reviewed 73 existing studies from around the world that have been published over the past 13 years and have found that bees, ants and bugs are eight times faster than mammals, birds or reptiles.

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The leading author dr. Francisco Sánchez-Bayo said that one-third of insect species are classified as endangered.

"The main factor is the loss of habitat due to agricultural practices, urbanization and deforestation," BBC News reported.

Secondly, the growing use of fertilizers and pesticides in agriculture worldwide and contamination with chemical pollutants of all kinds.

"Thirdly, we have biological factors, such as invasive species and pathogens, and fourth, we have climate change, especially in tropical areas where it is known to have a major impact."

The loss of insects would be devastating to the environment, as they provide food for birds, bats and small mammals, restore soil and pollute about 75 percent of the crops in the world.

It's even more interesting to check pest numbers.

Professor Dave Goulson, who was not included in the review, said that pests, such as domestic flies and cockroaches, thrive in an environment created by man and have developed resistance to pesticides.

Bats, birds and other types of animals that rely on insects as the main source of food could be erased (AAP)

He added that many species of animals could be eliminated, which rely on insects as the main source of food, which would only increase the number of pests.

"The rapid pest reproduction is likely to flourish due to warmer conditions, as many of their natural enemies who reproduce more slowly will disappear," he said.

"It's pretty likely that we could end up with a small number of pests, but we will lose all the wonderful ones we want."

Prod Goulson added that a large number of insects will disappear and be replaced – do not expect it to happen soon.

"If you look at what happened in the major extinctions of the past, they have created massive adaptive radiation, where few species that have made it have been adapted and occupied by all available niches and developed into new species," he said.

"So give him a million years and I do not doubt that there will be a whole variety of new creatures that appeared to replace those that were erased in the 20th and 21st centuries."

© Nine Digital Pty Ltd 2019

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