VU

vlierhaarmuts

Orthotrichum consimile

Unknown

Overview

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

Orthotrichum consimile faces severe decline due to air pollution, particularly nitrogen deposition and sulfur compounds that alter bark chemistry and reduce suitable substrate availability. Urban development and intensive forestry practices have eliminated many of its traditional host trees, while climate change creates increasingly unsuitable microclimatic conditions for this pollution-sensitive moss species.

Threat summary

Habitat

This epiphytic moss grows exclusively on the bark of deciduous trees, particularly favoring elder, ash, and maple in humid woodland environments and parklands. It requires specific bark pH conditions and clean air quality, making it highly sensitive to environmental changes and pollution levels.

Other threatened species in Orthotrichaceae

EN

Slender Bristle-moss

Orthotrichum tenellum

Unknown
VU

Macromitrium tocaremae

Unknown
VU

Macromitrium attenuatum

Unknown
VU

Orthotric de Roger

Orthotrichum rogeri

Unknown

Frequently asked questions

Why is vlierhaarmuts classified as Vulnerable?
vlierhaarmuts 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. Orthotrichum consimile faces severe decline due to air pollution, particularly nitrogen deposition and sulfur compounds that alter bark chemistry and reduce suitable substrate availability. Urban development and intensive forestry practices have eliminated many of its traditional host trees, while climate change creates increasingly unsuitable microclimatic conditions for this pollution-sensitive moss species.
Where does vlierhaarmuts live?
vlierhaarmuts 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 vlierhaarmuts?
The main threats to vlierhaarmuts 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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