CR

Sorbus vallerubusensis

UnknownCREUCREU

Overview

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

Sorbus vallerubusensis faces severe threats from its extremely restricted range and small population size, making it vulnerable to stochastic events and genetic bottlenecks. The species is threatened by habitat degradation from grazing pressure and potential climate change impacts on its specialized montane environment. Human activities in the surrounding landscape, including recreational use and infrastructure development, pose additional risks to the remaining populations.

Threat summary

Habitat

This endemic rowan species occupies rocky slopes and cliff ledges in montane environments, typically growing in calcareous soils at elevations between 300-600 meters. It is restricted to a very small area in the Welsh uplands, where it grows in association with other specialized cliff-dwelling plants in areas with limited soil development.

Conservation measures underway

Ex-situ conservation

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Frequently asked questions

Why is Sorbus vallerubusensis classified as Critically Endangered?
Sorbus vallerubusensis 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. Sorbus vallerubusensis faces severe threats from its extremely restricted range and small population size, making it vulnerable to stochastic events and genetic bottlenecks. The species is threatened by habitat degradation from grazing pressure and potential climate change impacts on its specialized montane environment. Human activities in the surrounding landscape, including recreational use and infrastructure development, pose additional risks to the remaining populations.
Where does Sorbus vallerubusensis live?
Sorbus vallerubusensis occurs in Hungary. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Sorbus vallerubusensis?
The main threats to Sorbus vallerubusensis 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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