VU

Placostylus bollonsi

Unknown

Overview

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

Placostylus bollonsi faces severe pressure from habitat destruction as native forests are cleared for agriculture and urban development across its limited range. Introduced predators, particularly rats and possums, pose a significant threat to both adults and eggs of this ground-dwelling snail. The species' naturally slow reproductive rate and limited dispersal ability make populations extremely vulnerable to local extinctions, while climate change may alter the moisture regimes essential for its survival.

Threat summary

Habitat

This large terrestrial snail inhabits native forests and forest margins, particularly favoring areas with high humidity and abundant leaf litter. It is typically found in lowland and hill country forests where it shelters under logs, rocks, and dense vegetation during dry periods.

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Frequently asked questions

Why is Placostylus bollonsi classified as Vulnerable?
Placostylus bollonsi is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Placostylus bollonsi faces severe pressure from habitat destruction as native forests are cleared for agriculture and urban development across its limited range. Introduced predators, particularly rats and possums, pose a significant threat to both adults and eggs of this ground-dwelling snail. The species' naturally slow reproductive rate and limited dispersal ability make populations extremely vulnerable to local extinctions, while climate change may alter the moisture regimes essential for its survival.
Where does Placostylus bollonsi live?
Placostylus bollonsi occurs in New Zealand. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Placostylus bollonsi?
The main threats to Placostylus bollonsi 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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