EN

Partulina tessellata

Unknown

Overview

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

Partulina tessellata faces severe population decline primarily due to predation by introduced carnivorous snails, particularly Euglandina rosea, which was deliberately introduced to Hawaiian islands as a biological control agent. Habitat degradation from invasive plant species and feral ungulates has further reduced suitable native forest areas. Climate change poses an additional threat through altered precipitation patterns that affect the moist microhabitats essential for this species' survival.

Threat summary

Habitat

This endemic Hawaiian tree snail inhabits native mesic and wet forests on Oahu, typically found on native trees and shrubs in areas with consistent moisture and moderate temperatures. The species requires intact native forest canopy that maintains the humid microclimate conditions essential for its survival and reproduction.

Other threatened species in ACHATINELLIDAE

VU

Elasmias kitaiwojimanum

Unknown
CR

Achatinella cestus

Unknown
CR

Achatinella swiftii

Unknown
CR

Achatinella leucorrhaphe

Unknown

Frequently asked questions

Why is Partulina tessellata classified as Endangered?
Partulina tessellata 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. Partulina tessellata faces severe population decline primarily due to predation by introduced carnivorous snails, particularly Euglandina rosea, which was deliberately introduced to Hawaiian islands as a biological control agent. Habitat degradation from invasive plant species and feral ungulates has further reduced suitable native forest areas. Climate change poses an additional threat through altered precipitation patterns that affect the moist microhabitats essential for this species' survival.
Where does Partulina tessellata live?
Partulina tessellata 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 Partulina tessellata?
The main threats to Partulina tessellata 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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