CR

Quercus thomsoniana

Declining

Overview

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

Quercus thomsoniana faces severe population decline due to extensive deforestation and habitat conversion in the Himalayan foothills for agricultural expansion and urban development. The species is further threatened by unsustainable logging practices targeting mature oak trees for timber and fuel wood. Climate change poses an additional risk as shifting temperature and precipitation patterns alter the specific montane conditions this oak requires for regeneration.

Threat summary

Habitat

This oak species inhabits temperate montane forests in the Himalayan region, typically occurring at elevations between 1,500-2,800 meters in mixed broadleaf forests. It grows in well-drained soils on slopes and ridges, often forming part of the dominant canopy layer alongside other Himalayan oak species.

Conservation measures underway

Site/area protectionEx-situ conservation

Frequently asked questions

Why is Quercus thomsoniana classified as Critically Endangered?
Quercus thomsoniana 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. Quercus thomsoniana faces severe population decline due to extensive deforestation and habitat conversion in the Himalayan foothills for agricultural expansion and urban development. The species is further threatened by unsustainable logging practices targeting mature oak trees for timber and fuel wood. Climate change poses an additional risk as shifting temperature and precipitation patterns alter the specific montane conditions this oak requires for regeneration.
Where does Quercus thomsoniana live?
Quercus thomsoniana occurs in Bangladesh, and Bhutan. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Quercus thomsoniana?
The main threats to Quercus thomsoniana are 5.3, ai-1, ai-2, and ai-3. The full IUCN-classified threat record for this species is detailed on the species page.

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