VU

Stygobromus gradyi

Unknown

Overview

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

Stygobromus gradyi faces significant threats from groundwater contamination and depletion due to agricultural runoff and urban development in its limited range. The species' obligate dependence on pristine groundwater systems makes it extremely vulnerable to pollution from pesticides, fertilizers, and industrial chemicals that can infiltrate aquifer systems. Water table lowering from excessive pumping for irrigation and municipal use directly reduces available habitat for this subterranean amphipod.

Threat summary

Habitat

Stygobromus gradyi inhabits groundwater systems and underground aquifers in limestone karst regions. This obligate stygobiont species is restricted to subterranean freshwater environments with stable temperatures and high water quality.

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 gradyi classified as Vulnerable?
Stygobromus gradyi 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 gradyi faces significant threats from groundwater contamination and depletion due to agricultural runoff and urban development in its limited range. The species' obligate dependence on pristine groundwater systems makes it extremely vulnerable to pollution from pesticides, fertilizers, and industrial chemicals that can infiltrate aquifer systems. Water table lowering from excessive pumping for irrigation and municipal use directly reduces available habitat for this subterranean amphipod.
Where does Stygobromus gradyi live?
Stygobromus gradyi 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 gradyi?
The main threats to Stygobromus gradyi 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.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.