CR

Neisosperma thiollierei

Unknown

Overview

Ochrosia thiollierei, synonym Neisosperma thiollierei, is a species of plant in the family Apocynaceae. It is endemic to New Caledonia. It is threatened by habitat loss.

Neisosperma thiollierei faces severe population decline primarily due to habitat destruction from coastal development and agricultural expansion across its limited range in New Caledonia. The species is particularly vulnerable to invasive plant species that outcompete native vegetation and alter soil chemistry. Climate change poses an additional threat through rising sea levels and increased storm intensity affecting coastal habitats where this endemic tree occurs.

Threat summary

Habitat

This endemic New Caledonian tree inhabits coastal forests and lowland woodland areas, typically growing in well-drained soils near the shoreline. The species is adapted to the unique ultramafic soils characteristic of New Caledonia's coastal regions.

Other threatened species in APOCYNACEAE

EN

Aspidosperma salgadense

Declining
EN

Rauvolfia steyermarkii

Declining
VU

Ceropegia rhynchantha

Declining
VU

Ceropegia loranthiflora

Unknown

Frequently asked questions

Why is Neisosperma thiollierei classified as Critically Endangered?
Neisosperma thiollierei 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. Neisosperma thiollierei faces severe population decline primarily due to habitat destruction from coastal development and agricultural expansion across its limited range in New Caledonia. The species is particularly vulnerable to invasive plant species that outcompete native vegetation and alter soil chemistry. Climate change poses an additional threat through rising sea levels and increased storm intensity affecting coastal habitats where this endemic tree occurs.
Where does Neisosperma thiollierei live?
Neisosperma thiollierei 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 Neisosperma thiollierei?
The main threats to Neisosperma thiollierei 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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