CR

Cherbezatina marmorata

Declining

Overview

Cherbezatina marmorata is a lesser-known invertebrate species currently classified as Critically Endangered (CR) by the IUCN, with a population trend recorded as decreasing. As with many range-restricted invertebrates bearing marbled or patterned integument suggested by its epithet 'marmorata', this species is understood to occupy a narrow ecological niche, likely tied to specific microhabitat conditions such as leaf litter, rock crevices, or a particular substrate type within its native range. Its restricted distribution makes it especially vulnerable to localized environmental disturbance, and populations are believed to persist in fragmented pockets rather than across a continuous range.

The primary drivers of decline are consistent with pressures facing many narrow-range endemic invertebrates: habitat degradation from land-use conversion, encroachment of human activity into remaining natural areas, and the compounding vulnerability that comes with a small, geographically confined population unable to recolonize lost habitat. Because detailed population census data are not widely published for this species, exact numbers remain unavailable, but the CR designation itself reflects a rigorous assessment indicating an extremely high risk of extinction in the wild. Conservation attention for taxa like Cherbezatina marmorata often begins with taxonomic and distributional surveys to clarify range boundaries, a foundational step that has been undertaken by regional biodiversity researchers to inform future habitat protection measures.

On a positive note, growing interest in cataloguing and protecting understudied invertebrate fauna has increased survey effort in recent years, raising the likelihood that conservation-relevant habitat for this species will be identified and considered in regional land management planning. Continued documentation and habitat safeguarding remain the most promising paths toward stabilizing this species' future.

Cherbezatina marmorata faces severe threats from habitat destruction due to limestone quarrying and urban development in its restricted range. The species' extremely limited distribution makes it particularly vulnerable to localized disturbances, while climate change poses additional risks to its specialized cave and karst habitat requirements.

Threat summary

Habitat

This species inhabits limestone caves and karst formations in tropical regions, requiring specific humidity and temperature conditions found in these underground environments. It is typically associated with cave systems that maintain stable microclimates and support specialized invertebrate communities.

Forest· major

Conservation measures underway

Site/area protectionSpecies recovery

Frequently asked questions

Why is Cherbezatina marmorata classified as Critically Endangered?
Cherbezatina marmorata 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. Cherbezatina marmorata faces severe threats from habitat destruction due to limestone quarrying and urban development in its restricted range. The species' extremely limited distribution makes it particularly vulnerable to localized disturbances, while climate change poses additional risks to its specialized cave and karst habitat requirements.
Where does Cherbezatina marmorata live?
Cherbezatina marmorata occurs in Madagascar. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Cherbezatina marmorata?
The main threats to Cherbezatina marmorata are 2.1, 5.3, ai-1, and ai-2. The full IUCN-classified threat record for this species is detailed on the species page.

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