VU

Nemoura dubitans

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Nemoura dubitans faces significant pressure from water pollution and habitat degradation affecting the pristine stream environments it requires. Climate change poses an additional threat by altering water temperature and flow regimes in its specialized cold-water habitats. Agricultural runoff and urban development in catchment areas have reduced water quality in many of its known locations.

Threat summary

Habitat

This stonefly species inhabits clean, cold-water streams and rivers with rocky substrates, typically in forested catchments. The larvae require well-oxygenated water with minimal pollution and stable flow conditions.

FRESHWATER· majorTERRESTRIAL· major

Threatened in Austria

VU

Lepiota echinella

Unknown
EN

Lyophyllum deliberatum

Unknown
VU

Large Tree-chernes

Dendrochernes cyrneus

Unknown
EN

Pipizella nigriana

Unknown

Frequently asked questions

Why is Nemoura dubitans classified as Vulnerable?
Nemoura dubitans is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Nemoura dubitans faces significant pressure from water pollution and habitat degradation affecting the pristine stream environments it requires. Climate change poses an additional threat by altering water temperature and flow regimes in its specialized cold-water habitats. Agricultural runoff and urban development in catchment areas have reduced water quality in many of its known locations.
Where does Nemoura dubitans live?
Nemoura dubitans occurs in Austria, Belgium, Croatia, Czechia, Denmark, and Estonia (plus 10 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Nemoura dubitans?
The main threats to Nemoura dubitans are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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