VU

Chalcosyrphus jacobsoni

UnknownENEUENEU

Overview

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

The svart mulmblomfluga faces severe pressure from habitat degradation in its specialized wetland environments, particularly through drainage and modification of bog and fen systems across Scandinavia. Climate change poses an additional threat by altering the hydrology and plant communities of these sensitive ecosystems. The species' narrow ecological requirements and limited dispersal ability make it particularly vulnerable to local extinctions when suitable habitat patches are lost or fragmented.

Threat summary

Habitat

This specialized hoverfly inhabits pristine bog and fen environments, particularly areas with Sphagnum moss and associated flowering plants. It requires undisturbed wetland systems with specific moisture regimes and plant communities typical of northern European peatlands.

Frequently asked questions

Why is Chalcosyrphus jacobsoni classified as Vulnerable?
Chalcosyrphus jacobsoni 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. The svart mulmblomfluga faces severe pressure from habitat degradation in its specialized wetland environments, particularly through drainage and modification of bog and fen systems across Scandinavia. Climate change poses an additional threat by altering the hydrology and plant communities of these sensitive ecosystems. The species' narrow ecological requirements and limited dispersal ability make it particularly vulnerable to local extinctions when suitable habitat patches are lost or fragmented.
Where does Chalcosyrphus jacobsoni live?
Chalcosyrphus jacobsoni occurs in Canada, Finland, Norway, Russia, and Sweden. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Chalcosyrphus jacobsoni?
The main threats to Chalcosyrphus jacobsoni 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.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.