CR

Diospyros glabrata

Unknown

Overview

Diospyros glabrata is a woody plant species belonging to the ebony family, Ebenaceae, a group renowned for dense, dark timber and slow-growing tropical trees. Classified as Critically Endangered (CR) by the IUCN, this species survives in a highly restricted native range, reflecting the acute conservation pressures facing many island and forest-endemic Diospyros species. Like its relatives, it likely produces small, inconspicuous flowers and fleshy fruit, with a growth form adapted to the understory or canopy gaps of its native forest habitat.

Populations are believed to be small and fragmented, a pattern common among Critically Endangered Diospyros species restricted to shrinking forest tracts. The primary drivers of decline are habitat degradation and clearance for agriculture, logging, and infrastructure development, compounded by the species' apparent narrow ecological tolerance and limited natural regeneration. Because Diospyros timber is historically valued commercially, selective logging pressure may pose an additional risk where accessible populations remain.

Conservation attention for threatened Diospyros species typically involves in-situ habitat protection within forest reserves, seed banking, and botanical garden cultivation to safeguard genetic material against extinction. Encouragingly, growing regional efforts to catalogue and protect endemic flora have brought renewed scientific attention to poorly documented Ebenaceae species, improving prospects for targeted conservation action. Continued botanical surveys and habitat protection measures offer a genuine, if fragile, pathway toward stabilizing remaining populations of this Critically Endangered tree.

Diospyros glabrata faces severe population decline primarily due to extensive deforestation and habitat conversion for agricultural expansion across its limited range. The species' restricted distribution makes it particularly vulnerable to localized threats, with remaining populations fragmented and isolated. Urban development and infrastructure projects have further reduced available habitat, while the species' slow growth rate hampers natural recovery from disturbances.

Threat summary

Habitat

This species inhabits tropical lowland forests and forest margins, typically occurring in areas with well-drained soils and partial canopy cover. It is found in both primary and secondary forest habitats, often along forest edges and in disturbed areas that retain some tree cover.

Conservation measures underway

Ex-situ conservation

Frequently asked questions

Why is Diospyros glabrata classified as Critically Endangered?
Diospyros glabrata 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. Diospyros glabrata faces severe population decline primarily due to extensive deforestation and habitat conversion for agricultural expansion across its limited range. The species' restricted distribution makes it particularly vulnerable to localized threats, with remaining populations fragmented and isolated. Urban development and infrastructure projects have further reduced available habitat, while the species' slow growth rate hampers natural recovery from disturbances.
Where does Diospyros glabrata live?
Diospyros glabrata occurs in Papua New Guinea, and Solomon Islands. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Diospyros glabrata?
The main threats to Diospyros glabrata are 2.1, 3.2, ai-1, and ai-2. The full IUCN-classified threat record for this species is detailed on the species page.

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