Alien CSI Bioblitz: a citizen science project
to engage society in invasive species monitoring. 

Welcome to the third edition of the Alien CSI Bioblitz, a 3-days event across Europe! Join and help us to detect as many invasive alien species as possible! It will be organised in six different regions in May, in most cases between 24 and 26 May 2024.


There is no sign of saturation in accumulation of alien species (AS) introductions worldwide, while the rate of spread for some AS seems to be increasing. Particular attention must be dedicated to Invasive Alien Species (IAS), i.e., AS that harm biodiversity and ecosystem services, or have a negative impact on the economy or human health. Managing biological invasions depends on accurate, detailed and up-to-date information on occurrences, distribution, pathways and impact of IAS at varying spatial scales across Europe and indeed globally. The challenges of gathering information on AS are recognized, but recent developments in citizen science (CS), that is, the involvement of citizens in data collection or analysis for research projects, provide an opportunity to improve data flow and knowledge on AS. Further, it ensures effective and high quality societal engagement with the issue of IAS.


Choose your region and check how to collaborate and help scientists detect IAS in your area!



Project funded by:

COST Action CA17122: increasing understanding of alien species through citizen science.