eDNA Citizen Science

How can we track biodiversity loss at the speed and scale needed to protect our ecosystems? The eDNA Citizen Science project combines cutting-edge environmental DNA technology with citizen science to enable residents, community groups, and local organizations to monitor aquatic and terrestrial biodiversity in their neighborhoods.

Environmental DNA (eDNA) are genetic traces left behind by organisms in water, soil, and air that can reveal which species are present without capturing or disturbing wildlife. By training citizens to collect eDNA samples using simple, standardized kits, we can gather biodiversity data across much larger areas than traditional scientific surveys allow.

The Citizen Science Lab leads the community engagement and co-creation aspects of this innovative project, working with residents around Leiden's proposed "Second Green Ring" and citizens' initiatives to ensure the research addresses their priorities and concerns. Participants help design research questions, collect samples, and use the resulting data to inform local conservation actions and urban planning decisions.

The project operates on two scales: a pilot phase focusing on Leiden's green-blue framework and biodiversity corridors, followed by a nationwide "eDNA Bioblitz" engaging volunteers across the Netherlands through established networks like RAVON. This approach demonstrates how citizen science can transform both scientific research and community stewardship of local environments.

Through co-evaluation methodologies and participatory workshops, the CSL ensures that diverse community voices shape both the research process and the actions that emerge from it, creating genuine partnerships between scientists, policymakers, and residents working toward nature-healthy cities.

Led by Dr. Kat Stewart (Institute of Environmental Sciences, Leiden University) with Margaret Gold (Citizen Science Lab) coordinating stakeholder engagement. Supported by NWA Green Route funding.