Megalaria grossa
Local name: ädellav
Photo: iNaturalist: (c) Steve Kerr, some rights reserved (CC BY), uploaded by Steve Kerr
Overview
Megalaria grossa, commonly known as ädellav, is a crustose lichen species characterized by its thick, warty thallus that forms grayish-white to pale yellow crusty patches on bark surfaces. This slow-growing epiphytic lichen plays a crucial ecological role as a pioneer species in forest ecosystems, contributing to nutrient cycling and providing microhabitat for invertebrates while serving as an indicator of air quality and forest health.
Megalaria grossa faces severe population declines primarily due to habitat loss from deforestation and forest degradation in its limited range. The species is particularly vulnerable due to its specialized ecological requirements and small population size, making it highly susceptible to environmental changes and human disturbance.
Habitat
Ädellav typically colonizes the bark of mature deciduous trees, particularly favoring the slightly acidic bark of oak, beech, and maple trees in old-growth and semi-natural forests. The species requires stable microclimatic conditions with consistent humidity levels and minimal air pollution, often found in forest interiors away from urban and agricultural influences.
Other threatened species in Ramalinaceae
Frequently asked questions
Why is ädellav classified as Endangered?
Where does ädellav live?
What are the main threats to ädellav?
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