Robust Grimmia
CR

Robust Grimmia

Schistidium robustum

UnknownLCEULCEU

Photo: Photo: (c) michael-lueth, some rights reserved (CC BY-NC)

Overview

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

Robust Grimmia faces severe threats from habitat degradation and climate change impacts on its specialized rocky environments. The species' extremely limited distribution and specific microhabitat requirements make it highly vulnerable to environmental changes and human disturbances in mountainous regions.

Threat summary

Habitat

Rocky outcrops, cliff faces, and boulder fields in mountainous regions, typically growing on acidic rock surfaces in areas with specific moisture and temperature conditions. The species occupies specialized microhabitats on exposed rock surfaces at higher elevations.

Other threatened species in Grimmiaceae

Streamside Schistidium MossCR

Streamside Schistidium Moss

Schistidium rivulare

Unknown
Stook GrimmiaCR

Stook Grimmia

Schistidium trichodon

Unknown
Grimmia Dry Rock MossCR

Grimmia Dry Rock Moss

Grimmia plagiopodia

Unknown
Sieve-tooth MossCR

Sieve-tooth Moss

Coscinodon cribrosus

Unknown

Frequently asked questions

Why is Robust Grimmia classified as Critically Endangered?
Robust Grimmia is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Robust Grimmia faces severe threats from habitat degradation and climate change impacts on its specialized rocky environments. The species' extremely limited distribution and specific microhabitat requirements make it highly vulnerable to environmental changes and human disturbances in mountainous regions.
Where does Robust Grimmia live?
Robust Grimmia 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 Robust Grimmia?
The main threats to Robust Grimmia 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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