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Insects die for record highs – sixth sign of mass extinction



Somehow it's easier to worry about wolves, sea turtles, and white witches die than feelings of mercy for losing mistakes.

But the loss of insects is a huge threat, which can lead to a "catastrophic collapse of Earth's ecosystems," said a new study.

The study, the first global review of this kind, reviewed 73 historical reports of insect decline worldwide and found that the total mass of all insects on the planet is declining by 2.5% per year.

If this trend does not change, the Earth may not have any insects until 2119.

"In 10 years you will have a quarter less, 50 years – only half, and after 1

00 years you don't have," Sydney University researcher and researcher Francisco Sanchez-Bayo said The Guardian.

It's a big problem because the insects are Birds, fish and mammalian food sources are numerous: pollinating plants such as bees and butterflies also play an important role in the production of fruit, vegetables and nuts

Insects disappear 8 times faster than mammals, birds and reptiles

Sanchez-Bayo and its collaborators have focused their research on insects in European and North American countries, where they estimate that 41 percent of species of insects are declining, 31 percent are under threat (according to criteria established by the International Union for Conservation of Nature) and 10 percent

This rate of extinction is eight times faster than the rate at which mammals, birds and reptiles disappear.

In Aarhus, Denmark and North America, bee species have had a major impact on the decline in the number of pearls, honey bees and wild bees. The number of honey bee colonies in the US fell from 6 million. 1947 Up to 2.5 million

California beekeeper checks his honey bee hive
AP

Moths and butterflies also disappear across Europe and the US. From 2000 alone Until 2009 The UK has lost 58% of butterfly species on farms.

In addition, dragons, organs and beetles also seem to die.

Looking at all the planet's populations (not just insects) by 2017 The Earth seems to be in the process of 'biological destruction'. This analysis estimates that "as many as 50% of the animals that once shared the land with us have already passed."

This rapid loss of global biodiversity is sometimes referred to as the "sixth extinction" because it is the sixth occurrence of life history on Earth for the planet's fauna suffered a large number of collapses.

In the past, mass extinctions have been caused by collisions of glaciers or asteroids. However, mass extinction is driven by human activity – deforestation, mining and carbon dioxide emissions, contributing to global warming.

"Because insects account for about two-thirds of all land types on Earth, the above-mentioned trends confirm that the sixth major event of extinction has a major impact on the lives of our planet," the authors wrote.

Read more: Scientists say we are seeing the disappearance of the sixth planet – and "biological destruction" is the latest sign

"catastrophic consequences … for human survival"

All insects in the world can be extinct
] Joe Klementovich / Aurora Photos / Getty

The study emphasizes that insects are "essential for all ecosystems to function properly as food sources for plant pollinators, pest controllers and nutrient processors in soil.

"If the loss of insect species cannot be stopped, it will have catastrophic consequences for the planet's ecosystems and human survival," Sanchez-Bayo said.

As a result, many insect populations are threatened by food, wood and fiber production, which depends on human survival, as Timothy Schowalter, professor of entomology at Louisiana State University, says.

"The whistler refuses to hurt 35 percent. As a result of global food supply, European countries are obliged to protect and restore pollinator habitats, ”he said.

Schowalter added that insects are also important food resources for many birds, fish and other vertebrates that would disappear if their food sources were.

"Insects are often condemned, or at least their significant contribution to ecosystem productivity and the delivery of ecosystem services is underestimated," Schowalter said. "In short, if insects and other arthropods fall, our survival would be threatened."

This is not the first time scientists have focused on declining populations of insects.

2017 The study has shown that since 1990, 75% of German flying insects disappeared. Another recent study has shown that common arthropod biomass – beings, such as insects, spiders and lobsters, have joint joints, but no spine – since 1970.

Pesticides, fertilizers and heavy land use in agriculture are key factors in this decline.

"In general, systematic, widespread and often unnecessary use of pesticides in agricultural and pasture land over the last 60 years has had a negative impact on most organisms, from insects to birds and bats," the authors of the new study wrote.

They added: "The conclusion is clear: unless we change our way of producing food, insects, as a whole, will disappear in decades as a way of extinction."

Sanchez-Bayo said The Guardian, he believes insects such as neonicotinoids and fipronil are particularly harmful.

"They sterilize the soil, kill all the rude," he said.

Farmer Spraying the Pesticide
REUTERS / Jayanta Dey

Climate change temperature changes also play a role in insect deaths, although this is not the main factor.

"So far, the downturn is more related to land-use changes, especially to agricultural intensification, forest fragmentation and urban development, rather than to temperature changes," Schowalter said.


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