CR

Unonopsis bauxitae

Declining

Overview

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

Unonopsis bauxitae faces severe threats from bauxite mining operations in its restricted range, as the species is endemic to areas with aluminum-rich soils that are actively targeted for extraction. The small population size and extremely limited geographic distribution make this tree particularly vulnerable to habitat destruction, with mining activities directly removing the specialized substrate conditions required for its survival.

Threat summary

Habitat

This critically endangered tree species is endemic to bauxite-rich soils in tropical lowland forests, specifically adapted to the unique chemical and physical properties of aluminum-rich substrates. It occurs in primary forest areas where bauxite deposits create distinctive soil conditions that support specialized plant communities.

Other threatened species in ANNONACEAE

VU

Cyathocalyx magnifructus

Unknown
VU

Mitrephora vulpina

Unknown
VU

Goniothalamus undulatus

Unknown
CR

Huberantha mossambicensis

Unknown

Frequently asked questions

Why is Unonopsis bauxitae classified as Critically Endangered?
Unonopsis bauxitae 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. Unonopsis bauxitae faces severe threats from bauxite mining operations in its restricted range, as the species is endemic to areas with aluminum-rich soils that are actively targeted for extraction. The small population size and extremely limited geographic distribution make this tree particularly vulnerable to habitat destruction, with mining activities directly removing the specialized substrate conditions required for its survival.
Where does Unonopsis bauxitae live?
Unonopsis bauxitae 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 Unonopsis bauxitae?
The main threats to Unonopsis bauxitae 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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