EN

Monolistra spinosissima

Unknown

Overview

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

Monolistra spinosissima faces severe threats from groundwater pollution and extraction activities that directly impact its cave aquifer habitat. The species' extremely limited distribution in a single cave system makes it highly vulnerable to any disturbance of local hydrology. Tourism pressure and cave visitation can alter the delicate microclimate and water chemistry essential for this endemic isopod's survival.

Threat summary

Habitat

This endemic isopod inhabits the subterranean aquatic environments of limestone cave systems in the Dinaric Alps region. It requires stable groundwater conditions with specific temperature and chemical parameters found only in deep cave pools and underground streams.

FRESHWATER· major

Other threatened species in SPHAEROMATIDAE

VU

Monolistra calopyge

Unknown
VU

Monolistra schottlaenderi

Unknown
EN

Thermosphaeroma milleri

Unknown
CR

Thermosphaeroma dugesi

Unknown

Frequently asked questions

Why is Monolistra spinosissima classified as Endangered?
Monolistra spinosissima is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Monolistra spinosissima faces severe threats from groundwater pollution and extraction activities that directly impact its cave aquifer habitat. The species' extremely limited distribution in a single cave system makes it highly vulnerable to any disturbance of local hydrology. Tourism pressure and cave visitation can alter the delicate microclimate and water chemistry essential for this endemic isopod's survival.
Where does Monolistra spinosissima live?
Monolistra spinosissima occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Monolistra spinosissima?
The main threats to Monolistra spinosissima 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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