More than 40% of insect species can be no longer in the next decades, according to "Worldwide decline in entrepreneur: A review of its drivers" report, published in the journal Biological Conservation.
The biomass insect dropped by a staggering 2.5% a year, a rate indicating extensive extinctions over a century, the report found.
In addition to 40% of the risk of dying, one third of the species is endangered – Numbers that can cause the collapse of the planet's ecosystem with a devastating impact on life on Earth.
The report, written by scientists from the universities of Sydney and Queensland and the China Academy of Agricultural Sciences, looked at dozens of existing insect reproduction reports published over the past three decades , and examine the reasons behind falling numbers to make a scary global picture.
The leading author, Francisco Sanchez-Bayo, of the School of Life and Environmental Sciences at the University of Sydney, called the study the first true worldwide review of the issue.
While past research has been in denial of vertebrate biodiversity of the animal, this study studies the importance of insect life in ecosystems and food chain. Bugs make up around 70% of all animal species.
The effects of insect eradication will be "a disaster to be said," according to the report, while insects are in the "structural and functional base of many of the world's ecosystems since their rise … almost 400 million years ago. "
The main causes of rejection are" loss of habitat and conversion to intensive agriculture and urbanization, "pollution, especially pesticides and fertilizers, as well as biological factors , such as "pathogens and introduced species" and climate change.
While many insect specialists, which fill in a specific ecological niche, and general insects are denied, a small gr The oup of infectious insects are seeing their number increases – but nowhere close enough to arrest the denial, the report found.
Small creatures that operate in the world
Nine, an entomologist and retired scientist of the Commonwealth Scientific and Industrial Research Organization, agree that "bottom-up" effects The insect loss is serious.
"If we do not have insects as moderators of other pest populations, we have populations of insects that sprout and destroy crops and make them grow," he said.
He added that the ecosystem at this level has "balance." That is the bottom layer and unless we meet it all our lives can be affected by the huge
"(Insects are) the small creatures that operate the world," he said.
Insect Reports The rejection is not new: researchers warn the unusual and its effects for many years.
"These are non-agricultural areas, these are locations that are meant to preserve biodiversity, but we still see insects spit in our hands," said the co-author of the report, Caspar Hallman.
Species that depend on insects as their source of food – and the predators are much higher in the food chain eating those species – likely to suffer from These rejections, according to scientists. The pollination of both crops and wild plants will also be affected, including nutrient cycling on the ground.
Some 80% of wild plants use insects for pollination while 60% of birds rely on insects as food sources, according to the study. Sands said that the immediate danger of falling insects is the loss of insect birds, and the risk of larger birds causing food insects to eat one.
In his native Australia, "the birds that go out to insect food are alone," she says, adding that it is likely to be a worldwide phenomenon.
Radical action required
The authors of the report demanded radical and immediate action. "Since insects make up the widest group of animals and different types of animals and provide critical services within the ecosystem, these events can not be ignored and should spur decisive action to prevent the collapse of the ecosystem of nature, "they wrote.
They propose overhaul of existing agricultural practices, "specifically a substantial reduction in pesticide use and replacing it with more sustainable, ecological-based practices."
"The conclusion is clear: unless we change our way of making food, insects altogether will go to the path of extinction in decades," they ended.