Fen Grasshopper Habitat Conservation

The fen grasshopper is one of the UK rarest insects, restricted to alkaline fen habitats in East Anglia, and requires specialist habitat management for its survival.

Key Facts

The fen grasshopper is confined to a small number of fen sites in Norfolk and Suffolk in the UK
It requires tall, dense fen vegetation including purple moor-grass and fen sedges
Habitat loss through drainage, agricultural conversion, and fen succession has severely reduced its range
The species is highly sedentary and poor at colonising new habitat without deliberate introduction
Water level management maintaining winter flooding and summer moisture is critical to fen grasshopper habitat quality
It is listed as rare and vulnerable to extinction in the UK

Welfare Considerations

Individual fen grasshoppers at poorly managed or deteriorating sites experience reduced survival through inadequate food, thermal environment, and reproductive habitat. As fen habitats dry out through drainage or climate change, the quality of available microhabitat declines, reducing individual fitness and population resilience. While the welfare of individual invertebrates is uncertain compared to vertebrates, the conservation of highly restricted species represents a responsibility to maintain the conditions that allow natural populations to function. Active habitat management through appropriate water level control and vegetation management directly supports population viability.

What You Can Do

Support the Norfolk Wildlife Trust and Suffolk Wildlife Trust fen habitat restoration projects
Advocate for water level restoration in fenland habitats to support specialist species
Donate to invertebrate conservation organisations working on rare grasshopper and cricket species
Engage with agricultural land management bodies about fen buffer zone creation
Report fen grasshopper sightings to the Orthoptera Recording Scheme