VU

gul pysslinglav

Thelopsis flaveola

Unknown

Overview

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

Thelopsis flaveola faces significant pressure from air pollution and acid rain, which alter the chemical composition of its bark substrates and reduce lichen diversity in urban and industrial areas. Forest fragmentation and intensive forestry practices that favor young, even-aged stands eliminate the mature trees with suitable bark chemistry that this species requires. Climate change compounds these threats by altering precipitation patterns and increasing drought stress, which affects both the lichen and its host trees.

Threat summary

Habitat

Thelopsis flaveola grows as a crustose lichen on the bark of mature deciduous trees, particularly favoring species with nutrient-rich, slightly basic bark chemistry in humid forest environments. It is typically found in old-growth and semi-natural forests with stable microclimatic conditions and low levels of air pollution.

Frequently asked questions

Why is gul pysslinglav classified as Vulnerable?
gul pysslinglav 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. Thelopsis flaveola faces significant pressure from air pollution and acid rain, which alter the chemical composition of its bark substrates and reduce lichen diversity in urban and industrial areas. Forest fragmentation and intensive forestry practices that favor young, even-aged stands eliminate the mature trees with suitable bark chemistry that this species requires. Climate change compounds these threats by altering precipitation patterns and increasing drought stress, which affects both the lichen and its host trees.
Where does gul pysslinglav live?
gul pysslinglav 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 gul pysslinglav?
The main threats to gul pysslinglav 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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