Invasive ant species Tapinoma magnum: Danger for Baden-Württemberg!

Invasive ant species Tapinoma magnum: Danger for Baden-Württemberg!

The invasive ant species is spreading in Baden-WürttembergTapinoma magnumincreasingly out. Originally from the Mediterranean region, sightings have already been recorded in Stuttgart and the districts of Esslingen, Ludwigsburg and Rems-Murr. This species forms so-called super colonies with millions of animals and thus displaces the native fauna. In addition to ecological damage,Tapinoma magnumExperts warn that they also endanger structural and technical infrastructure.

A research project carried out in collaboration with the Stuttgart and Karlsruhe natural history museums and supported by the Baden-Württemberg Ministry of the Environment aims to investigate the spread of this invasive ant. This includes the creation of a high-quality reference genome that should enable the identification of genetic markers. These markers help determine the origin of the invasion and document its spread across Central Europe, reports the website Baden-Württemberg Natural History Museum.

Sightings and measures in the cities

The Nürtingen city administration has not yet received any reports of sightings. In Esslingen, however, ants have already been spotted on a noise barrier, prompting the city to consider further measures. The situation is also being monitored in Winnenden, but so far there have only been a few confirmed sightings. In Hessigheim, residents report gardens being dug up, which is why samples are taken to the Stuttgart Natural History Museum to be checked.

Natural History Museum staff provide citizens with tips on how to identifyTapinoma magnum. What is striking is that around 90 percent of the images and specimens submitted are not of this type. If sightings are confirmed, it is recommended to notify communities and connect neighbors to allow for a coordinated response.

Citizen participation and future forecasts

A key element of the research project is the involvement of citizen scientists. The population is encouraged to collect ant specimens, document and report their findings. This is intended to cover large geographical areas in Baden-Württemberg. At the same time, we are working on a model that will predict the future spread ofTapinoma magnumshould predict. Environmental variables, climate data and urban planning are taken into account in order to identify potential risk areas.

The research results will be compiled in a white paper that includes recommendations for action for municipalities to detect and contain invasions. A guide with an identification key for the population is also in the works. The project results will be discussed at a final meeting, with representatives from science, politics and society present.

The current observations in Nürtingen, Esslingen, Winnenden and Hessigheim make it clear thatTapinoma magnumrepresents a serious problem that requires continued attention and action. Populations play a critical role in identifying and controlling this invasive species to protect native biodiversity.