CR

Tegenaria schmalfussi

Declining

Overview

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

Tegenaria schmalfussi faces severe threats from its extremely restricted range, being endemic to a single cave system in Turkey. The species is vulnerable to habitat degradation from human disturbance, cave tourism, and potential groundwater changes that could alter the delicate microclimate conditions essential for its survival. Climate change poses additional risks through altered precipitation patterns that could affect the cave's humidity levels and prey availability.

Threat summary

Habitat

This cave-dwelling spider is endemic to limestone cave systems in Turkey, where it inhabits the dark zones with stable temperature and humidity conditions. The species requires specific microhabitat conditions found only in undisturbed cave environments with adequate prey populations of small invertebrates.

Conservation measures underway

Habitat & natural process restorationAwareness & communications

Other threatened species in AGELENIDAE

VU

Tegenaria annae

Unknown
EN

Tegenaria pieperi

Unknown
VU

Tegenaria ariadnae

Unknown
CR

Histopona isolata

Unknown

Threatened in Greece

EN

Trichoferus bergeri

Unknown
VU

Lepiota echinella

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VU

Copper Shark

Carcharhinus brachyurus

Declining
Luschan's SalamanderEN

Luschan's Salamander

Lyciasalamandra luschani

Declining

Frequently asked questions

Why is Tegenaria schmalfussi classified as Critically Endangered?
Tegenaria schmalfussi 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. Tegenaria schmalfussi faces severe threats from its extremely restricted range, being endemic to a single cave system in Turkey. The species is vulnerable to habitat degradation from human disturbance, cave tourism, and potential groundwater changes that could alter the delicate microclimate conditions essential for its survival. Climate change poses additional risks through altered precipitation patterns that could affect the cave's humidity levels and prey availability.
Where does Tegenaria schmalfussi live?
Tegenaria schmalfussi occurs in Greece. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Tegenaria schmalfussi?
The main threats to Tegenaria schmalfussi 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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