Hedgehog Population Monitoring and Citizen Science

Citizen science hedgehog monitoring programs enable detection of population trends and identification of priority conservation areas, directly informing welfare-protective interventions.

Key Facts

The Big Hedgehog Map and similar citizen science projects have collected millions of hedgehog records globally
Track and footprint tunnel surveys provide presence-absence data without requiring direct hedgehog observation
Camera trap monitoring at feeding stations provides information on individual hedgehog movements and behavior
Systematic recording schemes enable detection of local population decline before it becomes critical
Urban hedgehog populations monitored through citizen science show variation between adjacent areas suggesting local management matters
Collaborative monitoring between citizen scientists and research organizations generates data that guides conservation interventions

Welfare Considerations

Monitoring programs contribute to hedgehog welfare by providing the population data needed to direct conservation resources to where they are most needed. Areas showing rapid decline can receive priority intervention; areas where populations are stable can be monitored to understand what management factors are protective. Citizen science that generates actionable conservation data is not merely observational engagement — it is a direct welfare contribution that scales with the number of participants. Every garden hedgehog record contributes to a picture that guides welfare-protective landscape management.

What You Can Do

Register your garden hedgehog sightings on the Big Hedgehog Map or your national recording scheme
Set up a footprint tunnel in your garden and check it weekly — simple, inexpensive, and valuable monitoring
Install a wildlife camera at a feeding station to collect behavioral and movement data
Participate in organized hedgehog surveys organized by PTES or local wildlife groups
Share your sighting data with researchers studying hedgehog population trends and habitat use
Encourage neighbors to record and submit their hedgehog sightings to improve spatial coverage of monitoring data