2024-11-19 19:38:00
Is it too late to stem the spread of the electric ant, a particularly menacing invasive species, in mainland France? A second outbreak was identified in August in the municipality of Croix-Valmer, in the Var, France Inter revealedMonday 18 November. A first outbreak was discovered two years ago in Toulon, in the same department. From, the Etat does not an eradication operation has not yet been implemented in the contaminated area.
Microscopic (measuring 1.5 millimetres), yellow-orange in color and capable of reproducing by cloning (without fertilization of the male), the Wasmannia auropunctata it is native to South America. Classified among 88 invasive species of interest to the European Unionand, its stings cause burning sensations and have important consequences on biodiversity.
In Croix-Valmer it was the owner of a house in a residential area who reported the presence of these ants after the bites “very painful”. “At least ten villas are contaminated, says Luc Gomel, specialist in the fight against invasive ants. We find ants in gardens but also in all common green spaces, along pavements, in the hydrographic network… ” In Toulon the first outbreak was discovered by chance by a young ant enthusiast, and the presence of the species was formally confirmed in September 2022. It is found in the gardens of a residence but also inside buildings and even outside the site, in the natural environment.
For at least five years
In both cases the most probable hypothesis is that this species was introduced via ornamental plants. A study is underway to establish whether the clone found in Croix-Valmer is similar to that of Toulon or to that of populations already observed in other countries, such as Spain. Considering the size of the colonies, specialist Olivier Blight, professor-researcher at the University of Avignon, estimates that the ants arrived at least five years ago.
Since the first report, the response has been slow. Due to the inclusion of the electric ant in the European list in August 2022, the state was supposed to implement an eradication plan in three months. “There was nothing planned to act quickly, observes Olivier Blight. No European country has the experience of eradicating an ant population. It took a while to find contacts, operators, financing. »
What are the main challenges posed by the electric ant in terms of biodiversity in France?
Interview: Understanding the Electric Ant Threat in France
Interviewer (Editor of Time.news): Good day, and welcome to our special segment on invasive species and their impacts. Joining us today is Luc Gomel, a specialist in the fight against invasive ants. Luc, thank you for being here.
Luc Gomel: Thank you for having me. It’s a pleasure to discuss this important issue.
Editor: Let’s dive right in. We’ve seen alarming reports about the electric ant, or Wasmannia auropunctata, spreading in mainland France, particularly in the Var. Can you tell us what makes this ant species so concerning?
Luc: Absolutely. The electric ant is tiny—measuring only about 1.5 millimeters—but don’t let its size fool you. It’s highly invasive and can reproduce clonally, which means it doesn’t need a male to breed, allowing its population to grow rapidly. Its painful stings can deter people from enjoying outdoor spaces, causing burning sensations that have been described as very uncomfortable.
Editor: The recent outbreaks in Croix-Valmer and Toulon are particularly troubling. What should residents and local authorities be aware of regarding the ant’s behavior and impact on biodiversity?
Luc: Residents need to be vigilant. The electric ant tends to thrive in both residential and natural environments, and it can easily colonize gardens, communal green spaces, and even buildings. This not only disrupts local ecosystems, as it competes with native species but also poses potential health risks, especially to those who may experience allergic reactions to its stings.
Editor: There appears to be a delay in response from authorities regarding containment or eradication efforts. What are the implications of this inaction?
Luc: Unfortunately, the delay can lead to the establishment of stable populations that are much harder to eradicate later. Without immediate action, the problem can escalate, putting more species at risk and possibly transforming local ecosystems irreversibly. It’s crucial that we start a strategic eradication operation to contain the spread as early as possible.
Editor: For the average citizen, what steps can they take to fight against the electric ant invasion?
Luc: First and foremost, awareness is key. If someone suspects they have located electric ants, they should report their findings to local authorities or pest control services. Keeping gardens clean and free of debris can also limit their habitat. Additionally, introducing native species may help restore balance to affected ecosystems.
Editor: Looking ahead, what does the future hold for the habitats currently invaded by electric ants?
Luc: If left unchecked, these habitats may undergo significant changes. The loss of native species and the dominance of the electric ant could create a ripple effect throughout the food web, impacting other wildlife and plant communities. Long-term monitoring and management strategies will be essential to restoring these ecosystems and preventing further invasions.
Editor: Thank you, Luc. Your insights highlight the urgent need for action against the electric ant threat. It’s clear that this issue requires a collaborative effort between authorities, experts, and the community to protect our environment.
Luc: Thank you for having me. Let’s hope for increased awareness and proactive measures to safeguard our ecosystems.
Editor: Exactly. We’ll continue to follow this story closely. Thanks to our viewers for tuning in, and remember, staying informed and engaged is crucial in the fight against invasive species. Until next time!