Tetrix sierrana
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Tetrix sierrana faces significant pressure from habitat degradation in its montane grassland environments, where overgrazing by livestock and agricultural conversion have reduced suitable breeding and foraging areas. Climate change poses an additional threat as warming temperatures may force this cold-adapted species to retreat to higher elevations with increasingly limited habitat availability. The species' restricted range in the Sierra Nevada mountains makes it particularly vulnerable to localized disturbances and extreme weather events.
Habitat
Tetrix sierrana inhabits montane grasslands and meadows in the Sierra Nevada mountain range, typically found in areas with sparse vegetation and rocky substrates at elevations between 1,500-3,000 meters. The species prefers open, sun-exposed areas with a mosaic of bare ground and low-growing grasses that provide both basking sites and shelter.