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Kostermanthus malayanus

Unknown

Overview

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

Kostermanthus malayanus faces severe pressure from rapid deforestation across its limited range in Peninsular Malaysia and southern Thailand. Palm oil plantations and urban development have fragmented the lowland dipterocarp forests this species depends on, while logging operations continue to degrade remaining habitat patches. The species' restricted distribution and specialized habitat requirements make it particularly vulnerable to ongoing land conversion pressures.

Threat summary

Habitat

Kostermanthus malayanus is endemic to lowland dipterocarp forests in Peninsular Malaysia and southern Thailand, typically occurring in primary and mature secondary forests below 300 meters elevation. The species requires the humid, shaded understory conditions characteristic of intact tropical rainforest ecosystems.

Other threatened species in Chrysobalanaceae

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Hirtella maguirei

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Hirtella adenophora

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Hirtella vesiculosa

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Frequently asked questions

Why is Kostermanthus malayanus classified as Endangered?
Kostermanthus malayanus 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. Kostermanthus malayanus faces severe pressure from rapid deforestation across its limited range in Peninsular Malaysia and southern Thailand. Palm oil plantations and urban development have fragmented the lowland dipterocarp forests this species depends on, while logging operations continue to degrade remaining habitat patches. The species' restricted distribution and specialized habitat requirements make it particularly vulnerable to ongoing land conversion pressures.
Where does Kostermanthus malayanus live?
Kostermanthus malayanus 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 Kostermanthus malayanus?
The main threats to Kostermanthus malayanus 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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