VU

Stygobromus arizonensis

Unknown

Overview

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

Stygobromus arizonensis faces severe threats from groundwater depletion and contamination in Arizona's desert regions, where mining activities and urban development have significantly altered hydrological systems. The species' obligate dependence on specific groundwater chemistry and flow patterns makes it extremely vulnerable to aquifer drawdown from agricultural pumping and municipal water extraction. Climate change compounds these pressures by reducing groundwater recharge rates in an already arid environment.

Threat summary

Habitat

This obligate groundwater amphipod inhabits phreatic waters and cave systems in the Sonoran Desert region of Arizona. The species requires specific groundwater conditions with stable temperatures and chemistry, typically found in limestone karst aquifers and associated underground water bodies.

FRESHWATER· major

Frequently asked questions

Why is Stygobromus arizonensis classified as Vulnerable?
Stygobromus arizonensis 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 arizonensis faces severe threats from groundwater depletion and contamination in Arizona's desert regions, where mining activities and urban development have significantly altered hydrological systems. The species' obligate dependence on specific groundwater chemistry and flow patterns makes it extremely vulnerable to aquifer drawdown from agricultural pumping and municipal water extraction. Climate change compounds these pressures by reducing groundwater recharge rates in an already arid environment.
Where does Stygobromus arizonensis live?
Stygobromus arizonensis 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 arizonensis?
The main threats to Stygobromus arizonensis 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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