EN

Rustia simpsonii

Declining

Overview

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

Rustia simpsonii faces severe pressure from habitat destruction as Jamaica's montane forests are cleared for agriculture and development. The species' extremely limited range makes it particularly vulnerable to localized disturbances, while invasive plant species alter the forest understory composition essential for its survival. Climate change poses an additional threat by shifting temperature and moisture regimes in the high-elevation forests where this endemic species persists.

Threat summary

Habitat

Rustia simpsonii is endemic to Jamaica's montane forests, occurring in moist limestone forests at elevations between 900-1,500 meters. The species inhabits the understory of these cloud-influenced forests where high humidity and consistent moisture create specialized microhabitat conditions.

Conservation measures underway

Ex-situ conservation

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 Rustia simpsonii classified as Endangered?
Rustia simpsonii is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Rustia simpsonii faces severe pressure from habitat destruction as Jamaica's montane forests are cleared for agriculture and development. The species' extremely limited range makes it particularly vulnerable to localized disturbances, while invasive plant species alter the forest understory composition essential for its survival. Climate change poses an additional threat by shifting temperature and moisture regimes in the high-elevation forests where this endemic species persists.
Where does Rustia simpsonii live?
Rustia simpsonii 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 Rustia simpsonii?
The main threats to Rustia simpsonii 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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