Osmoxylon mariannense
CR

Osmoxylon mariannense

Declining

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Osmoxylon_mariannense

Overview

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

Osmoxylon mariannense faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited range in the Mariana Islands. The species' extremely restricted distribution makes it particularly vulnerable to localized disturbances, while invasive plant species compete for resources and alter native forest composition. Climate change poses additional risks through altered precipitation patterns and increased storm intensity in the Pacific region.

Threat summary

Habitat

This endemic tree species inhabits native limestone forests and secondary forest areas in the Mariana Islands. It typically grows in well-drained soils on elevated terrain and forest edges where it can access adequate sunlight.

Forest· majorForest - Subtropical/tropical moist lowland· majorRocky areas· major

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Frequently asked questions

Why is Osmoxylon mariannense classified as Critically Endangered?
Osmoxylon mariannense 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. Osmoxylon mariannense faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited range in the Mariana Islands. The species' extremely restricted distribution makes it particularly vulnerable to localized disturbances, while invasive plant species compete for resources and alter native forest composition. Climate change poses additional risks through altered precipitation patterns and increased storm intensity in the Pacific region.
Where does Osmoxylon mariannense live?
Osmoxylon mariannense occurs in Northern Mariana Islands, and United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Osmoxylon mariannense?
The main threats to Osmoxylon mariannense 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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