VUVulnerable

Tetrix sierrana

Unknown

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.
Threat summary

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.

Other threatened species in TETRIGIDAE

Intermediate Royal Pygmy Grasshopper

Andriana intermedia

Declining

Frequently asked questions

Why is Tetrix sierrana classified as Vulnerable?

Tetrix sierrana 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. 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.

Where does Tetrix sierrana live?

Tetrix sierrana occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.

What are the main threats to Tetrix sierrana?

The main threats to Tetrix sierrana 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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