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‘We Knew This Day Would Come’: One of World’s Most Invasive Species Reaches Europe


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The red fire ant, one of the world’s most invasive species, has been found in Europe for the first time, according to a new study.

The imported ant, which has the scientific name Solenopsis invicta, is native to South America but has spread throughout much of the United States, Mexico, the Caribbean, China, and Australia over the past century.

These insects can be aggressive when disturbed and they have a painful sting, which is irritating to the skin and can cause allergic reactions.

The ant can also damage crops and local ecosystems.

Researchers said they had identified 88 red fire ant nests spread over 5 hectares near the city of Syracuse in Sicily, Italy.

“Finding this species in Italy was a big surprise, but we knew this day would come,” Mattia Menchetti, a researcher at the Institute of Evolutionary Biology in Spain, said.

Menchetti called the ants “one of the worst invasive species” whose colonies “can spread alarmingly quickly”.

While red fire ants had been discovered in imported products in Spain, Finland and the Netherlands, a colony had never been confirmed before this study, the authors said.

The colonies were found in a suburban area of Syracuse.

It was unclear how or when the fire ants got there.

The researchers behind the study believe the insects must have arrived at a transit point with lots of human activity, such as the city’s port.

It’s believed the ants arrived in Australia through the Port of Brisbane around 2000.

Officials have tried to contain the ants to south-east Queensland, and eradicate colonies, but this year a nest was found within 5.5km of the New South Wales border.

Locals in Italy told the scientists that ant stings had increased since 2019.

The study suggested that wind could have transported flying queen ants from the northwest of Syracuse, where the commercial port is located.

Genetic analysis of the ants revealed that they had most likely spread from the United States or China, where the super pests are also an invasive species.

The ants could soon spread all over Europe, the researchers warned, since 7 per cent of the continent — including large urban areas like Barcelona, Rome, London and Paris — has a climate suitable for the species, according to a model made by the study authors.

The study was published today in scientific journal Current Biology.

Invasive species cost the world at least $657 billion every year as they drive plant and animal extinctions, threaten food security and exacerbate environmental catastrophes across the globe, according to a United Nations-backed report released last week.

Source : 9News

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