Parmeliella parvula
Local name: dvärgblylav
Photo: iNaturalist: (c) jrgallop, all rights reserved, uploaded by jrgallop
Overview
Parmeliella parvula is a small, foliose lichen species with distinctive bluish-gray thalli that form rosette-like patches on substrates. This diminutive lichen plays an important ecological role as a pioneer species in specialized microhabitats, contributing to nutrient cycling and providing substrate for other cryptogamic communities.
Parmeliella parvula, a critically endangered lichen species, faces severe decline primarily due to habitat loss and degradation of its specialized forest environments. Air pollution, particularly nitrogen deposition and acid rain, significantly impacts this pollution-sensitive species. Climate change further threatens the specific microhabitat conditions this lichen requires for survival.
Habitat
Parmeliella parvula grows on smooth bark of deciduous trees, particularly in humid, shaded locations within old-growth and mature forests. It requires stable microclimatic conditions with consistent moisture levels and clean air quality typical of undisturbed woodland environments.
Other threatened species in Pannariaceae
Frequently asked questions
Why is dvärgblylav classified as Critically Endangered?
Where does dvärgblylav live?
What are the main threats to dvärgblylav?
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