VU

Lethariella togashii

Declining

Overview

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

Lethariella togashii faces severe pressure from air pollution and acid rain, which directly damage its delicate thallus structure and disrupt its photosynthetic processes. Urban expansion and industrial development across its limited range in Japan have significantly reduced suitable habitat and increased atmospheric pollutants. Climate change compounds these threats by altering precipitation patterns and temperature regimes that this sensitive lichen species requires for survival.

Threat summary

Habitat

This rare lichen species inhabits old-growth forests and mature woodland areas in temperate regions of Japan, typically growing on the bark of deciduous trees. It requires specific microclimate conditions with high humidity, clean air, and stable temperature ranges found in undisturbed forest ecosystems.

TERRESTRIAL· major

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Frequently asked questions

Why is Lethariella togashii classified as Vulnerable?
Lethariella togashii 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. Lethariella togashii faces severe pressure from air pollution and acid rain, which directly damage its delicate thallus structure and disrupt its photosynthetic processes. Urban expansion and industrial development across its limited range in Japan have significantly reduced suitable habitat and increased atmospheric pollutants. Climate change compounds these threats by altering precipitation patterns and temperature regimes that this sensitive lichen species requires for survival.
Where does Lethariella togashii live?
Lethariella togashii occurs in Japan, and Russia. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Lethariella togashii?
The main threats to Lethariella togashii 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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