This page provides information on reporting under Regulation (EU) No 1143/2014 on Invasive Alien Species (IAS), due every six years. The Regulation establishes measures to prevent, minimise and mitigate the impacts of Invasive Alien Species on native biodiversity and ecosystem services in the EU. A key element of the Regulation is the list of Invasive Alien Species of Union concern (Union List). Further information about the IAS Regulation and the policy process is available on the European Commission's web page.

Invasive alien species (IAS) are animals, plants, fungi and microorganisms that are introduced accidentally or deliberately into a natural environment where they are not normally found, with serious negative consequences for their new environment. They are a major threat to native plants and animals in Europe and are one of the major causes of biodiversity loss. They can also cause significant adverse impacts on the economy (their economic impact in the EU was estimated at around EUR 12 billion per year) as well as human health, such as severe allergies and burns.

87

Invasive Alien Species

included in the list of

of Union Concern

73

Invasive Alien Species

present in the environment of at least
one EU Member State

> 4,000

Management measures

Implemented and almost half mitigated the negative impacts on biodiversity

Invasive Alien Species of Union concern

At the core of the EU IAS Regulation is the list of Invasive Alien Species of Union concern. IAS that have an adverse impact requiring concerted action at the EU level (pursuant to Article 4(3) of the IAS Regulation) are referred to as 'Invasive alien species of Union concern’. The decision to list a species as an IAS of Union concern is determined by an evidence-based risk assessment.

These assessments must be completed according to agreed criteria, thereby ensuring that the results are valid for the whole alien species of Union concern of the EU and will only need to be undertaken once. .

National Summaries

National Summaries Dashboards in this section provide an interactive overview of how EU Member States have reported under the Invasive Alien Species (IAS) Regulation for the 2019–2024 reporting period. They bring together key information submitted, allowing users to explore species presence, spatial distribution, and effectiveness of rapid eradication and management measures at the national level. The data presented reflect the validated deliveries made through Reportnet 3.0.

You can also explore the dashboards on Member States concern.

Just released

EEA Briefing

Recent progress in managing invasive alien species in the EU.

Every six years, European Union (EU) Member States report on national implementation of the EU Invasive Alien Species Regulation 1143/2014 (IAS Regulation). This briefing summarises highlights from the 2019-2024 reporting period on 87 ‘invasive alien species (IAS) of Union concern’ by all EU Member States.

Notes

  1. Implementing Regulations 2016/1141, 2017/1263, 2019/1262 and 2022/1203
  2. The oriental bittersweet Celastrus orbiculatus is included in the list with effect from 2 August 2027 and therefore, is excluded from this reporting period