Wart-biter
CR

Wart-biter

Decticus verrucivorus

UnknownLCEULCEU

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Wart-biter

Overview

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

The Wart-biter cricket faces severe population declines across its range due to widespread habitat loss and fragmentation of its specialized grassland ecosystems. Agricultural intensification, urban development, and the abandonment of traditional low-intensity grazing practices have eliminated much of the species' required habitat. Climate change and altered fire regimes further threaten remaining populations in this already restricted range.

Threat summary

Habitat

Inhabits dry, short-grass calcareous grasslands, chalk downs, and limestone pavements with sparse vegetation and bare ground patches. Requires warm, south-facing slopes with traditional extensive grazing or mowing regimes that maintain the open, species-rich grassland structure.

TERRESTRIAL· major

Other threatened species in Tettigoniidae

VU

Giulia's Marbled Bush-cricket

Eupholidoptera giuliae

Unknown
VU

Pale-legged Marbled Bush-cricket

Eupholidoptera pallipes

Unknown
VU

Marianne's Marbled Bush-cricket

Eupholidoptera mariannae

Unknown
Bei-Bienko's Plump Bush-cricketCR

Bei-Bienko's Plump Bush-cricket

Isophya bey-bienkoi

Unknown

Threatened in Åland Islands

Calidris ferrugineaVU

Calidris ferruginea

Declining
Scarce BlackneckCR

Scarce Blackneck

Lygephila craccae

Unknown
EN

knopphodeedderkopp

Walckenaeria nodosa

Unknown
EN

Dolichopus notatus

Unknown

Frequently asked questions

Why is Wart-biter classified as Critically Endangered?
Wart-biter is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. The Wart-biter cricket faces severe population declines across its range due to widespread habitat loss and fragmentation of its specialized grassland ecosystems. Agricultural intensification, urban development, and the abandonment of traditional low-intensity grazing practices have eliminated much of the species' required habitat. Climate change and altered fire regimes further threaten remaining populations in this already restricted range.
Where does Wart-biter live?
Wart-biter occurs in Åland Islands, Albania, Andorra, Armenia, Austria, and Azerbaijan (plus 45 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 Wart-biter?
The main threats to Wart-biter 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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