Have you seen an alien?

More than one week

Course details

The European Alien Species Information Network (EASIN) Citizen Science activities aim at bringing together people, scientists and policymakers in an effort to monitor and control invasive alien species (IAS) that cause damage to native species, ecosystems and human health.

IAS are non-native biological organisms (plants or animals) that are widely spread, including the urban environment. Timely reporting helps to prevent their further spread; thus, people’s contribution is really important.

This course aims at raising awareness, increasing knowledge and involving the public in monitoring IAS in Europe, promoting people’s engagement in IAS management, and supporting the implementation of the EU Regulation 1143/2014 on IAS.

Target audience

Science teachers, high school students and the general public.

This course targets teachers who seek expert knowledge on biodiversity and want to give their students the opportunity to experience citizen science activities.
The access to this course is free, open and accessible to all stakeholders and people interested in the topic.

Learning objectives

  • Learn how important biodiversity is for our lives and what can we do as society to prioritise its protection.
  • Learn about alien and invasive alien species (IAS) as one of the main threats to biodiversity and how humans' activities can influence it.
  • Learn the different strategies to tackle IAS and learn about European regulations and practices to support their management.
  • Discover the EASIN network on IAS in Europe, how to explore its platform and how to contribute to the detection of IAS.
  • Discover the “Invasive Alien Species in Europe” JRC app, how to use it to report IAS around you and get ideas on how to develop your own citizen science activities.

Offered by

This content is offered by the European Commission. The European Commission is the European Union's politically independent executive arm. It is alone responsible for drawing up proposals for new European legislation, and it implements the decisions of the European Parliament and the Council of the European Union.

4.2 (43)


  1. General
  2. 1. Biodiversity
  3. 2. Alien and Invasive Alien Species
  4. 3. Invasive Alien Species at national and European levels
  5. 4. Data collection: Citizen Science and the EASIN platform
  6. 5. The JRC's “Invasive Alien Species in Europe” app