St Helena Dogwood
CR

St Helena Dogwood

Nesohedyotis arborea

Declining

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

Overview

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

Nesohedyotis arborea faces severe threats from habitat destruction as native forests on its island home are cleared for agriculture and development. The species' extremely limited range makes it vulnerable to any environmental disturbance, while invasive plant species compete for resources and alter the forest understory where it grows. Climate change poses additional risks through altered precipitation patterns and increased storm intensity affecting the delicate forest ecosystems this endemic species depends upon.

Threat summary

Habitat

This endemic species inhabits native montane forests and forest edges on volcanic islands, typically growing in the understory of humid tropical forests at moderate to high elevations. It requires the specific microclimate conditions found in intact native forest ecosystems with adequate moisture and filtered sunlight.

Forest· majorForest - Subtropical/tropical moist montane· majorShrubland· major

Conservation measures underway

Site/area protectionHabitat & natural process restoration

Other threatened species in RUBIACEAE

EN

Arachnothryx tacanensis

Declining
CR

Arachnothryx tenorioi

Unknown
VU

Aidia abeidii

Unknown
EN

Arachnothryx tuxtlensis

Declining

Threatened in St. Helena

Blind SnailVU

Blind Snail

Cecilioides acicula

Unknown
CR

Lobelia Flea Beetle

Longitarsus helenae

Unknown
VU

Jellico

Berula bracteata

Unknown
CR

She Cabbage Flea Beetle

Longitarsus janulus

Unknown

Frequently asked questions

Why is St Helena Dogwood classified as Critically Endangered?
St Helena Dogwood 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. Nesohedyotis arborea faces severe threats from habitat destruction as native forests on its island home are cleared for agriculture and development. The species' extremely limited range makes it vulnerable to any environmental disturbance, while invasive plant species compete for resources and alter the forest understory where it grows. Climate change poses additional risks through altered precipitation patterns and increased storm intensity affecting the delicate forest ecosystems this endemic species depends upon.
Where does St Helena Dogwood live?
St Helena Dogwood occurs in St. Helena. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to St Helena Dogwood?
The main threats to St Helena Dogwood 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.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.