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Common name(s): English: Dey's Moon Lichen

ASSESSMENT JUSTIFICATION [criteria: A3ce]

Sticta deyana is a rare macrolichen endemic to south-eastern North America with a suspected future population reduction that will occur in the future as the entire North Carolina subpopulation, containing>80% of the individuals, is projected to be inundated by sea-level rise by 2100 which is less than three generations (based on a 30 year generation time), while invasive species also provide a threat. Therefore, it is listed as Critically Endangered under criterion A3ce.

Assessor/s: Lendemer, J.; Reviewer/s: McMullin, T.; Facilitator(s) and Compiler(s): Allen, J. & Scott, T.

Bibliography:

Allen, J.L. & Lendemer, J.C. (2016) Quantifying the Impacts of Sea-Level Rise on Coastal Biodiversity: A Case Study on Lichens in the Mid-Atlantic Coast of Eastern North America. Biological Conservation 202:119-126.

Bachman, S., Moat, J., Hill, A.W., de la Torre, J. & Scott, B. (2011) Supporting Red List threat assessments with GeoCAT: geospatial conservation assessment tool. In: V. Smith & L. Penev (eds) e-Infrastructures for data publishing in biodiversity science. Zookeys 150: 117–126.

Ellison, A.M., Orwig, D.A., Fitzpatrick, M.C. & Preisser, E.L. (2018) The past, present, and future of the Hemlock Woolly Adelgid (Adelges tsugae) and its ecological interactions with Eastern Hemlock (Tsuga canadensis) forests. Insects 9(172): 1-18.

IUCN (2020) The IUCN Red List of Threatened Species. Version 2020-3. Available at: www.iucnredlist.org. (Accessed: 10 December 2020).

Lendemer, J.C. & Allen, J.L. (2014) Lichen Biodiversity Under Threat from Sea-Level Rise in the Atlantic Coastal Plain. BioScience 64(10): 923-931.

Lendemer, J.C. & Goffinet, B. (2015) Sticta deyana: a new endemic photomorphic lichen from the Mid-Atlantic coastal plain of eastern North America. Systematic Botany 40(4): 933-941.

Lendemer, J. C., Harris, R.C. & Ruiz, A.M. (2016) A review of the lichens of the Dare Regional Biodiversity Hotspot in the Mid-Atlantic coastal plain of North Carolina, eastern North America. Castanea 81(1): 1-77.

McDonald, T., Miadlikowska, J. & Lutzoni, F. (2003) The lichen genus Sticta in the Great SmokyMountains: a phylogenetic study of morphological, chemical, and molecular data. The Bryologist 106(1):61-79.

Tripp, E.A., Lendemer, J.C. & McCain, C.M. (2019) Habitat quality and disturbance drive lichen species richness in a temperate biodiversity hotspot. Oecologia 190: 445-457.

Find out more about the IUCN Red List Categories and Criteria here.