CR

Mt Delaikoro Hibiscus

Hibiscus bennettii

Declining

Overview

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

Hibiscus bennettii faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited range in Norfolk Island. The species' extremely small population size makes it vulnerable to stochastic events, while invasive plant species compete for resources and alter the native ecosystem structure. Climate change poses additional risks through altered precipitation patterns and increased storm intensity affecting this island endemic.

Threat summary

Habitat

Hibiscus bennettii is endemic to Norfolk Island, where it inhabits coastal and lowland areas with well-drained soils. The species occurs in remnant native vegetation patches and forest margins, typically in areas with partial shade and protection from strong winds.

Forest· majorForest - Subtropical/tropical moist montane· major

Conservation measures underway

Site/area protectionSpecies recoveryEx-situ conservation

Other threatened species in MALVACEAE

EN

Andeimalva machupicchensis

Declining
EN

Grewia pulverulenta

Declining
EN

Dombeya mandenensis

Declining
EN

Dombeya rariflora

Declining

Threatened in Fiji

Calidris ferrugineaVU

Calidris ferruginea

Declining
VU

Actinopyga miliaris

Declining
CR

Rotuma Tree Snail

Partula leefei

Declining
CR

Flax Snail

Placostylus koroensis

Unknown

Frequently asked questions

Why is Mt Delaikoro Hibiscus classified as Critically Endangered?
Mt Delaikoro Hibiscus 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. Hibiscus bennettii faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited range in Norfolk Island. The species' extremely small population size makes it vulnerable to stochastic events, while invasive plant species compete for resources and alter the native ecosystem structure. Climate change poses additional risks through altered precipitation patterns and increased storm intensity affecting this island endemic.
Where does Mt Delaikoro Hibiscus live?
Mt Delaikoro Hibiscus occurs in Fiji, Indonesia, Malaysia, Papua New Guinea, and Vanuatu. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Mt Delaikoro Hibiscus?
The main threats to Mt Delaikoro Hibiscus 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.