EN

Psychotria marchionica

Declining

Overview

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

Psychotria marchionica faces severe pressure from habitat degradation across its limited range in the Marquesas Islands. Invasive plant species, particularly aggressive weeds and non-native shrubs, are displacing native vegetation and altering the understory composition where this endemic coffee family species thrives. Human activities including agricultural expansion and infrastructure development continue to fragment the remaining suitable habitat patches.

Threat summary

Habitat

This endemic species inhabits the native forests and woodland areas of the Marquesas Islands in French Polynesia. It typically grows in the understory of mesic forests at moderate elevations, preferring areas with consistent moisture and partial shade beneath the forest canopy.

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 Psychotria marchionica classified as Endangered?
Psychotria marchionica 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. Psychotria marchionica faces severe pressure from habitat degradation across its limited range in the Marquesas Islands. Invasive plant species, particularly aggressive weeds and non-native shrubs, are displacing native vegetation and altering the understory composition where this endemic coffee family species thrives. Human activities including agricultural expansion and infrastructure development continue to fragment the remaining suitable habitat patches.
Where does Psychotria marchionica live?
Psychotria marchionica 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 Psychotria marchionica?
The main threats to Psychotria marchionica 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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