CR

Thermosphaeroma dugesi

Unknown

Overview

Thermosphaeroma dugesi is a species of isopod in the family Sphaeromatidae. It is found in Mexico.

Thermosphaeroma dugesi faces severe threats from water extraction and diversion that reduces flow in its thermal spring habitat. Pollution from agricultural runoff and urban development degrades water quality in the limited spring systems where this isopod survives. The species' extremely restricted range makes it vulnerable to any localized disturbance or habitat modification.

Threat summary

Habitat

This aquatic isopod is endemic to thermal springs in central Mexico, specifically inhabiting warm spring waters with consistent temperatures and flow rates. The species requires clean, well-oxygenated thermal spring environments with specific temperature ranges that support its specialized physiology.

FRESHWATER· major

Other threatened species in SPHAEROMATIDAE

VU

Monolistra calopyge

Unknown
VU

Monolistra schottlaenderi

Unknown
EN

Monolistra spinosissima

Unknown
EN

Thermosphaeroma milleri

Unknown

Threatened in Canada

VU

Lepiota echinella

Unknown
EN

Nymphaea loriana

Declining
EN

Lake Lamprey

Entosphenus macrostoma

Unknown
VU

Paddlefish

Polyodon spathula

Unknown

Frequently asked questions

Why is Thermosphaeroma dugesi classified as Critically Endangered?
Thermosphaeroma dugesi 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. Thermosphaeroma dugesi faces severe threats from water extraction and diversion that reduces flow in its thermal spring habitat. Pollution from agricultural runoff and urban development degrades water quality in the limited spring systems where this isopod survives. The species' extremely restricted range makes it vulnerable to any localized disturbance or habitat modification.
Where does Thermosphaeroma dugesi live?
Thermosphaeroma dugesi occurs in Canada, and Mexico. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Thermosphaeroma dugesi?
The main threats to Thermosphaeroma dugesi 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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