VU

Roesel's Signal

Heliodines roesella

Unknown

Overview

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

Roesel's Signal faces significant pressure from habitat degradation due to agricultural intensification and urban development across its European range. The species' dependence on specific host plants makes it particularly vulnerable to changes in land management practices, including the use of herbicides and altered mowing regimes. Climate change poses an additional threat by potentially shifting the distribution of suitable habitat and affecting the phenology of both the moth and its host plants.

Threat summary

Habitat

This small moth inhabits dry grasslands, chalk downs, and coastal dunes where its host plants in the Chenopodiaceae family grow. It shows a preference for warm, south-facing slopes and areas with sparse vegetation cover.

Threatened in Andorra

VU

Olive Skipper

Pyrgus serratulae

Unknown
Scarce BlackneckCR

Scarce Blackneck

Lygephila craccae

Unknown
EN

krokhorndyvel

Onthophagus fracticornis

Unknown
VU

Pyrenean Short-winged Grasshopper

Gomphoceridius brevipennis

Declining

Frequently asked questions

Why is Roesel's Signal classified as Vulnerable?
Roesel's Signal 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. Roesel's Signal faces significant pressure from habitat degradation due to agricultural intensification and urban development across its European range. The species' dependence on specific host plants makes it particularly vulnerable to changes in land management practices, including the use of herbicides and altered mowing regimes. Climate change poses an additional threat by potentially shifting the distribution of suitable habitat and affecting the phenology of both the moth and its host plants.
Where does Roesel's Signal live?
Roesel's Signal occurs in Andorra, Austria, Bosnia & Herzegovina, France, Georgia, and Germany (plus 8 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 Roesel's Signal?
The main threats to Roesel's Signal 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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