Wildlife

UK Glow-worm Conservation and Light Pollution

Conservation of glow-worms in UK chalk grassland and the impact of light pollution on this bioluminescent beetle.

Key Facts

Female glow-worms produce bioluminescent light to attract flying males
Chalk grassland, railway embankments, and woodland edges support UK populations
Light pollution interferes with mate-finding and population reproduction
Glow-worm populations have declined significantly across the UK
UK National Glow-worm Survey monitors population distribution and trends

Welfare Considerations

Glow-worm reproductive success depends on darkness for effective mate-finding, and light pollution disrupts this fundamental behaviour, reducing individual welfare and reproductive success.

What You Can Do

Support the UK National Glow-worm Survey by reporting sightings
Reduce outdoor lighting and advocate for dark sky policies
Visit chalk grassland sites in June and July to look for glowing females