VU

South Sierra Nevada Springsnail

Pyrgulopsis giulianii

Unknown

Overview

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

The South Sierra Nevada Springsnail faces severe threats from groundwater depletion and spring habitat degradation in California's arid regions. Water diversions for agricultural and municipal use have reduced spring flows, while livestock trampling and recreational activities damage the delicate spring ecosystems. Climate change exacerbates these pressures by increasing evaporation rates and altering precipitation patterns in the Sierra Nevada foothills.

Threat summary

Habitat

This endemic springsnail inhabits freshwater springs and seeps in the southern Sierra Nevada foothills of California. It requires constant water flow and specific water chemistry conditions found in natural spring systems at elevations between 1,000-3,000 feet.

FRESHWATER· major

Threatened in United States

Calidris ferrugineaVU

Calidris ferruginea

Declining
VU

Paddlefish

Polyodon spathula

Unknown
EN

Polystachya longiscapa

Unknown
VU

Actinopyga miliaris

Declining

Frequently asked questions

Why is South Sierra Nevada Springsnail classified as Vulnerable?
South Sierra Nevada Springsnail 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. The South Sierra Nevada Springsnail faces severe threats from groundwater depletion and spring habitat degradation in California's arid regions. Water diversions for agricultural and municipal use have reduced spring flows, while livestock trampling and recreational activities damage the delicate spring ecosystems. Climate change exacerbates these pressures by increasing evaporation rates and altering precipitation patterns in the Sierra Nevada foothills.
Where does South Sierra Nevada Springsnail live?
South Sierra Nevada Springsnail 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 South Sierra Nevada Springsnail?
The main threats to South Sierra Nevada Springsnail 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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