CRCritically Endangered

Red Balau

Shorea kunstleri

Conservation status data sourced from the IUCN Red List of Threatened Species.

3

Countries

01Classification

Taxonomy & Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Malvales

Family

Dipterocarpaceae

Genus

Shorea

Red Balau belongs to the family Dipterocarpaceae, order Malvales, within the Magnoliopsida class.

02Description

Species Profile

Species profile data sourced from the IUCN Red List of Threatened Species.

Red Balau faces severe threats from extensive deforestation and habitat conversion throughout its native range in Southeast Asia, particularly due to palm oil plantations, logging operations, and agricultural expansion. The species' slow growth rate and specific habitat requirements make recovery extremely difficult once populations are fragmented or eliminated. Conservation status may vary by region or assessment authority, but the overall trajectory indicates critical population declines.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupPlants
03Habitat

Habitat & Distribution

Red Balau occurs in tropical lowland dipterocarp forests and mixed rainforests, typically at elevations below 400 meters. The species requires well-drained soils and is often found on hillsides and ridges within primary and mature secondary forest ecosystems.

04Threats

Threats

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IUCN Red List: Critically Endangered

Red Balau faces severe threats from extensive deforestation and habitat conversion throughout its native range in Southeast Asia, particularly due to palm oil plantations, logging operations, and agricultural expansion. The species' slow growth rate and specific habitat requirements make recovery extremely difficult once populations are fragmented or eliminated. Conservation status may vary by region or assessment authority, but the overall trajectory indicates critical population declines.

Agricultural expansion and land conversion

HighOngoing

Commercial logging and timber extraction

HighOngoing

Deforestation for palm oil plantations

HighOngoing

Habitat fragmentation

HighOngoing

Slow regeneration rate limiting recovery

MediumOngoing
06Range

Found in 3 Countries

Community

Community Sightings

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07Sources

Sources & Attribution

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

This page: SpeciesRadar (2025). Red Balau (Shorea kunstleri). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/red-balau

Full citation guide & data usage terms