
Enterographa crassa
Photo: iNaturalist: (c) Valentin Hamon, some rights reserved (CC BY-NC), uploaded by Valentin Hamon
Overview
Enterographa crassa, commonly known as barkzonlav, is a crustose lichen species that forms thin, grayish-white to pale yellow crusts on tree bark. This 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.
Enterographa crassa faces severe decline primarily due to habitat loss from deforestation and air pollution affecting its lichen substrate requirements. Climate change and atmospheric nitrogen deposition are altering the specific microenvironmental conditions this species requires for survival.
Habitat
Barkzonlav typically colonizes the bark of mature deciduous and coniferous trees in temperate and boreal forests, showing preference for trees with slightly acidic to neutral bark pH. The species is most commonly found in old-growth forest stands and well-established secondary forests where air quality remains relatively pristine.
Other threatened species in Roccellaceae
Frequently asked questions
Why is Enterographa crassa classified as Endangered?
Where does Enterographa crassa live?
What are the main threats to Enterographa crassa?
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