CR

Neonauclea gageana

Unknown

Overview

Neonauclea gageana is a species of large tree in the family Rubiaceae. It is endemic to the Middle and South Andaman Islands of India where it was collected in the 19th century. It has not been recorded since.

Neonauclea gageana faces severe population decline primarily due to extensive deforestation and habitat conversion for agricultural expansion across its limited range in Southeast Asian lowland forests. The species' restricted distribution makes it particularly vulnerable to localized habitat destruction, while selective logging targets mature trees of this commercially valuable timber species. Climate change compounds these pressures by altering rainfall patterns essential for the species' reproductive cycles.

Threat summary

Habitat

Neonauclea gageana inhabits lowland tropical rainforests and secondary forests at elevations typically below 800 meters. The species requires well-drained soils and occurs in both primary forest understory and forest edges, showing some tolerance for disturbed habitats.

Other threatened species in RUBIACEAE

EN

Arachnothryx tacanensis

Declining
CR

Arachnothryx tenorioi

Unknown
VU

Aidia abeidii

Unknown
EN

Arachnothryx tuxtlensis

Declining

Frequently asked questions

Why is Neonauclea gageana classified as Critically Endangered?
Neonauclea gageana 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. Neonauclea gageana faces severe population decline primarily due to extensive deforestation and habitat conversion for agricultural expansion across its limited range in Southeast Asian lowland forests. The species' restricted distribution makes it particularly vulnerable to localized habitat destruction, while selective logging targets mature trees of this commercially valuable timber species. Climate change compounds these pressures by altering rainfall patterns essential for the species' reproductive cycles.
Where does Neonauclea gageana live?
Neonauclea gageana 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 Neonauclea gageana?
The main threats to Neonauclea gageana 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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