The INVAXEN project ~ INVAsive biology of XENopus laevis in Europe

INVAXEN Project: Invasive Biology of the African Clawed Frog in Europe

The video discusses the INVAXEN project, which focuses on the invasive biology of the African clawed frog (Xenopus laevis) in Europe. Below are the key scientific concepts and findings presented.

Invasive Alien Species and Biodiversity Threats

The African clawed frog, native to Southern Africa, is a highly invasive amphibian species that has spread to four other continents. This spread is primarily due to escapes and releases from laboratories and the pet trade. The species poses significant threats to biodiversity by:

• Competing with native species
• Preying on native species

Adaptability and Impact in Europe

This frog exhibits high adaptability to certain European climates, which enables:

• Rapid reproduction
• Fast spread across ecosystems

These factors contribute to negative impacts on native European ecosystems.

Multidisciplinary Research Approach

The INVAXEN project brought together scientists from four European countries and South Africa to study the frog’s biology and behavior through:

• Ecological data analysis
• Physiological studies
• Genetic investigations

Distribution Mapping and Prediction

Using satellite imagery combined with ecological data, the research team was able to:

• Accurately define the current distribution of the African clawed frog in Europe
• Predict its potential future range

Collaboration with Stakeholders for Conservation

INVAXEN worked closely with local environmental agencies and landowners to implement conservation actions, including:

• Improving frog capture methods in ponds using electrofishing
• Encouraging pond drainage to reduce breeding sites

Application of Research in Management Projects

The LIFE project CROAA utilized INVAXEN’s predictive models to:

• Identify zones at risk of invasion
• Enable targeted preventive measures to curb the frog’s spread

Outcome and Significance

The project demonstrated that evidence-based scientific research can effectively guide conservation practitioners in:

• Preventing biodiversity loss
• Protecting native species and ecosystems

Researchers and Sources Featured

• Multidisciplinary team from four European countries and South Africa (specific names not provided)
• INVAXEN project scientists
• LIFE project CROAA collaborators
• Local environmental services in Portugal