Geothallus tuberosus
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Geothallus
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Geothallus tuberosus faces severe threats from habitat destruction due to urban development and agricultural expansion across its limited range. The species' specialized soil crust habitat requirements make it particularly vulnerable to ground disturbance and trampling by livestock. Climate change poses an additional threat through altered precipitation patterns that could disrupt the delicate moisture balance required for this cryptobiotic soil organism.
Habitat
Geothallus tuberosus inhabits specialized cryptobiotic soil crusts in arid and semi-arid environments, typically found in undisturbed desert soils with specific moisture and mineral requirements. This lichen forms part of the biological soil crust community that stabilizes desert soils and provides essential ecosystem functions in fragile dryland ecosystems.
