• 1Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Leprocaulon terricola (Lendemer) Lendemer & B.P. Hodk.

Search for another Species...

Scientific name
Leprocaulon terricola
(Lendemer) Lendemer & B.P. Hodk.
Common names
IUCN Specialist Group
Incertae sedis
Assessment status
Proposed by
James Lendemer
James Lendemer
Comments etc.
Anders Dahlberg

Assessment Notes

Taxonomic notes

Why suggested for a Global Red List Assessment?

Leprocaulon terricola is narrowly endemic to a small area of coastal southern California (Channel Islands and nearby mainland). It occurs in biological soil crust communities that have been heavily impacted by past activities and continue to be threatened by multiple forces.

Geographic range

Leprocaulon terricola is narrowly endemic to a small area of coastal southern California including the Channel Islands mainland sites near San Diego.

Population and Trends

Demographic studies are needed to assess and monitor populations sizes. Populations are currently presumed to be stable although extant populations likely represent remnants of a once larger range in the region.

Population Trend: Stable

Habitat and Ecology

This species occurs in biological soil crusts in coastal areas together with other endemic species such as Leprocaulon americanum.

Temperate Forest


Historical activities including large scale conversion of natural habitats, intensive grazing, logging, mining, and recreation have led to habitat degradation throughout the region where this species occurs. Current threats include further conversion of natural habitats, habitat shifts/alteration due to climate change, air pollution, road/utility construction and maintenance, recreation and other activities that significantly disturb fragile soil crust communities.

Residential & commercial developmentHousing & urban areasCommercial & industrial areasTourism & recreation areasLivestock farming & ranchingTransportation & service corridorsRoads & railroadsUtility & service linesHuman intrusions & disturbanceRecreational activitiesNatural system modificationsFire & fire suppressionInvasive non-native/alien species/diseasesPollutionAir-borne pollutantsAcid rainSmogClimate change & severe weatherHabitat shifting & alteration

Conservation Actions

Conservation actions that can be taken include educating and training land managers and local botanists to identify the species so we can monitor its health as well as contracting experts to conduct detailed monitoring at various time intervals (every 5 to 10 years), federally listing the species as endangered in the United States, and restoration of the habitats in which the species occurs. Further conservation of lands where existing populations occur, and intensive searches of inaccessible coastal areas, are also needed.

Land/water protectionSite/area protectionResource & habitat protectionLand/water managementSite/area managementInvasive/problematic species controlHabitat & natural process restorationSpecies recoveryEducation & awarenessFormal educationTrainingAwareness & communicationsLaw & policyLegislationNational level

Research needed

Further research that will aid in the conservation of this species includes intensive searches for additional extant populations, population assessments and monitoring, population genetics studies, and ecological studies that incorporate threats to the species. Additionally, a species recovery plan needs to be written.

ResearchPopulation size, distribution & trendsLife history & ecologyThreatsActionsConservation PlanningSpecies Action/Recovery PlanArea-based Management PlanMonitoringPopulation trendsHabitat trends

Use and Trade


Lendemer, J. C. 2010: Notes on Lepraria s.l. (Lecanoromycetes, Ascomycota) in North America: New species, new reports, and preliminary keys. - Brittonia 62(3): 267-292.

Knudsen, K./ J. Kocourková 2012: The Annotated Checklist of Lichens, Lichenicolous and Allied Fungi of Channel Islands National Park. - Opuscula Philolichenum 11: 145-302.

Country occurrence

Regional Population and Trends

Country Trend Redlisted