VU

Macromitrium attenuatum

Unknown

Overview

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

Macromitrium attenuatum faces significant pressure from deforestation and habitat degradation across its limited range in tropical montane forests. The species' epiphytic lifestyle makes it particularly vulnerable to logging activities and forest fragmentation, which alter the microclimate conditions essential for moss survival. Climate change poses an additional threat through shifting precipitation patterns and temperature increases that could push this montane specialist beyond its ecological tolerance limits.

Threat summary

Habitat

This epiphytic moss species inhabits the bark of trees in tropical montane cloud forests, typically at elevations between 1,000-2,500 meters. It requires the consistently humid microclimate provided by intact forest canopies and is particularly associated with older growth trees that provide stable substrate conditions.

Frequently asked questions

Why is Macromitrium attenuatum classified as Vulnerable?
Macromitrium attenuatum 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. Macromitrium attenuatum faces significant pressure from deforestation and habitat degradation across its limited range in tropical montane forests. The species' epiphytic lifestyle makes it particularly vulnerable to logging activities and forest fragmentation, which alter the microclimate conditions essential for moss survival. Climate change poses an additional threat through shifting precipitation patterns and temperature increases that could push this montane specialist beyond its ecological tolerance limits.
Where does Macromitrium attenuatum live?
Macromitrium attenuatum 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 Macromitrium attenuatum?
The main threats to Macromitrium attenuatum 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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