CR

Opisthostoma jucundum

Declining

Overview

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

Opisthostoma jucundum faces severe threats from limestone quarrying and mining activities that directly destroy its specialized cave and karst habitat. The species' extremely restricted range on Langkawi Island makes it particularly vulnerable to habitat modification, while tourism development and infrastructure expansion continue to fragment remaining suitable areas. Climate change poses additional risks through altered humidity and temperature regimes within cave systems.

Threat summary

Habitat

This micro-endemic land snail inhabits limestone caves and karst formations on Langkawi Island, Malaysia. It requires specific microhabitat conditions within cave systems, including stable humidity levels and calcium-rich substrates typical of tropical limestone environments.

Forest· majorMarine coastal/supratidal· majorRocky areas· major