Pyrgulopsis bruneauensis
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Pyrgulopsis bruneauensis faces severe threats from groundwater depletion and habitat modification in its extremely limited range. Agricultural irrigation, geothermal development, and water diversions have significantly reduced spring flows in the Bruneau River drainage. The species' survival is further compromised by invasive species introductions and sedimentation from livestock grazing that degrades the delicate spring ecosystems it depends upon.
Habitat
This critically endangered freshwater snail is endemic to thermal springs and spring-fed streams in the Bruneau River drainage of southwestern Idaho. It requires constant water temperatures between 15-30°C and clean, well-oxygenated spring waters with specific mineral compositions.
