DSC7127 Norfolk Hawker...
Norfolk Hawker - Anaciaeschna isoceles (F)
Habitat
The optimum conditions for breeding appear to be unspoilt grazing marsh dyke systems with clean, non-saline water, rushy margins, preferably with an abundance of water soldier as well as other aquatic plants.
Threats
Conversion of grazing marsh to arable farming.
Inappropriate ditch management.
Nutrients enrichment.
Pollution.
The impact of global climate change and fluctuations in water levels.
Status & Distribution
The Norfolk Hawker is currently restricted to the fens and grazing marshes that are relatively isolated from polluted water in the Broadlands of Norfolk and Northeast Suffolk. A Local Biodiversity Action Plan (LBAP) for the Norfolk Hawker has been drafted for Norfolk.
Similar Species
Brown Hawker
Brown wings.
Blue-brown eyes.
Blue and yellow markings.
Management
Norfolk Hawker Management Profile
General management principles include maintaining grazing marshes, controlling saline intrusion, controlling nutrient enrichment. There are also best practice guidelines for managing inhabited sites, particularly the dyke vegetation and the surrounding terrestrial habitats.
Case Study
Work is underway to restore habitats for this species in Norfolk.
DSC7127 Norfolk Hawker...
Norfolk Hawker - Anaciaeschna isoceles (F)
Habitat
The optimum conditions for breeding appear to be unspoilt grazing marsh dyke systems with clean, non-saline water, rushy margins, preferably with an abundance of water soldier as well as other aquatic plants.
Threats
Conversion of grazing marsh to arable farming.
Inappropriate ditch management.
Nutrients enrichment.
Pollution.
The impact of global climate change and fluctuations in water levels.
Status & Distribution
The Norfolk Hawker is currently restricted to the fens and grazing marshes that are relatively isolated from polluted water in the Broadlands of Norfolk and Northeast Suffolk. A Local Biodiversity Action Plan (LBAP) for the Norfolk Hawker has been drafted for Norfolk.
Similar Species
Brown Hawker
Brown wings.
Blue-brown eyes.
Blue and yellow markings.
Management
Norfolk Hawker Management Profile
General management principles include maintaining grazing marshes, controlling saline intrusion, controlling nutrient enrichment. There are also best practice guidelines for managing inhabited sites, particularly the dyke vegetation and the surrounding terrestrial habitats.
Case Study
Work is underway to restore habitats for this species in Norfolk.