VU

Stygobromus pizzinii

Unknown

Overview

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

Stygobromus pizzinii faces severe threats from groundwater contamination and aquifer depletion in its limited range within the Edwards Aquifer system of Texas. Urban development and agricultural activities above its subterranean habitat introduce pollutants and alter natural water flow patterns. The species' extreme habitat specialization and restricted distribution make it particularly vulnerable to any changes in groundwater quality or quantity.

Threat summary

Habitat

This obligate cave-dwelling amphipod inhabits the phreatic zone of the Edwards Aquifer system in south-central Texas, living in water-filled limestone caverns and underground streams. The species requires pristine groundwater conditions with stable temperatures and specific chemical compositions found only in these deep karst aquifer systems.

FRESHWATER· major

Other threatened species in CRANGONYCTIDAE

VU

Stygobromus cooperi

Unknown
VU

Stygobromus parvus

Unknown
VU

Stygobromus putealis

Unknown
Stygobromus araeusVU

Stygobromus araeus

Unknown

Threatened in United States

VU

Lepiota echinella

Unknown
VU

Paddlefish

Polyodon spathula

Unknown
VU

Copper Shark

Carcharhinus brachyurus

Declining
EN

Lyophyllum deliberatum

Unknown

Frequently asked questions

Why is Stygobromus pizzinii classified as Vulnerable?
Stygobromus pizzinii 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. Stygobromus pizzinii faces severe threats from groundwater contamination and aquifer depletion in its limited range within the Edwards Aquifer system of Texas. Urban development and agricultural activities above its subterranean habitat introduce pollutants and alter natural water flow patterns. The species' extreme habitat specialization and restricted distribution make it particularly vulnerable to any changes in groundwater quality or quantity.
Where does Stygobromus pizzinii live?
Stygobromus pizzinii occurs in United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Stygobromus pizzinii?
The main threats to Stygobromus pizzinii 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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