Over the next decades, more than 40% of insect species may disappear, according to the World Entrepreneurship Recession: A Review of its Drivers Report, published in Biological Preservation.
Insect biomass decreases by 2.5 percent. Over the year, which shows that a century of widespread extinction disappears, a report was found.
Without 40 percent – Numbers that can cause the planet's ecosystems to collapse, with devastating effects on life on Earth.
The report, co-produced by scientists from the Universities of Sydney and Queensland and the Chinese Academy of Agricultural Sciences, looked at dozens of existing reports of insect decline published over the past three decades, and explored the reasons for the decline in figures to create an alarming global picture.
Francisco Sanchez-Bayo, the leader of the School of Life Sciences and Environmental Sciences at the University of Sydney, called the study the first truly comprehensive study of the issue.
Although in the past the focus has been on reducing the biodiversity of vertebrate animals, this study highlights the importance of insect life for interconnected ecosystems and the food chain. Bugs make up about 70% of all animal species
. The report states that the consequences of the disappearance of insects would be "catastrophic" because the insects were "based on a structural and functional basis". many of the world's ecosystems have been growing … almost 400 million years ago. "
The main causes of the fall are" habitat loss and the shift to intensive agriculture and urbanization ", in particular pesticide and fertilizer pollution, as well as biological factors such as" pathogens and introduced species "and climate change
Although little specialized insects who fill a certain ecological niche, and the total number of insects is decreasing, the small amount of grain has decreased. the number of adaptive insects has increased – but not at all close to a halt in the recession.
The Little Creatures Who Manage the World
Don Sands, an entomologist and retired scientist at the Commonwealth Scientific and Industrial Research Organization, said he agreed "completely" that the bottom-up impact of insect loss was serious.
"If we do not have insects as moderators of other pest populations, we have insect populations that ignite and damage crops, making them difficult to grow," he said
. "There must be a balance. This is the bottom layer, and unless we solve it, our entire life can be affected in an immeasurable way. ”
“ (insects) are the small creatures that control the world, ”he said
. The recession is not new: scientists have been warning about this phenomenon for many years
"It is not an agricultural area, it is sites that preserve biodiversity, but we still see insects that slip from our hands," said Caspar Hallman, co-author of this report.
Birds Eat Birds
Scientists say that species that rely on insects as a source of food and predators at the top of their digestive chain will suffer from these falls. Pollution of plants and wild plants would also be affected, as would nutrient metabolism in the soil.
Approximately 80% of wild plants pollinate using insects, and 60% of birds rely on insects as a source of food. Sands claimed that the risk of direct insect decline was the loss of insect birds and the risk that larger birds would cause insects to eat each other.
In his native Australia, "birds that run away from insect food turn to each other," he said, adding that this is probably a global phenomenon.