VU

Carex tahitensis

Unknown

Overview

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

Carex tahitensis faces severe pressure from habitat degradation across its limited range in French Polynesia's mountainous regions. Invasive plant species, particularly aggressive grasses and shrubs, are displacing native sedge communities and altering soil composition. Tourism development and infrastructure expansion in accessible highland areas continue to fragment remaining populations, while climate change threatens the cool, moist conditions this endemic sedge requires.

Threat summary

Habitat

This endemic sedge inhabits montane grasslands and wet meadows in the volcanic highlands of Tahiti, typically occurring at elevations between 800-1,500 meters. It grows in permanently moist soils along stream margins and in boggy depressions where native vegetation communities persist.

Other threatened species in CYPERACEAE

Carex lapazensisCR

Carex lapazensis

Unknown
EN

Bulbostylis nemoides

Unknown
VU

Costularia baronii

Declining
VU

Costularia robusta

Declining

Frequently asked questions

Why is Carex tahitensis classified as Vulnerable?
Carex tahitensis is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Carex tahitensis faces severe pressure from habitat degradation across its limited range in French Polynesia's mountainous regions. Invasive plant species, particularly aggressive grasses and shrubs, are displacing native sedge communities and altering soil composition. Tourism development and infrastructure expansion in accessible highland areas continue to fragment remaining populations, while climate change threatens the cool, moist conditions this endemic sedge requires.
Where does Carex tahitensis live?
Carex tahitensis 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 Carex tahitensis?
The main threats to Carex tahitensis 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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