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

Porpidia nadvornikiana (Vězda) Hertel

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Scientific name
Porpidia nadvornikiana
Author
(Vězda) Hertel
Common names
 
IUCN Specialist Group
Lichens
Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Lecideales
Family
Porpidiaceae
Assessment status
Pending
Proposed by
Alan Fryday
Contributors
Alan Fryday, Tommy Knutsson
Comments etc.
Anders Dahlberg

Assessment Status Notes

Taxonomic notes

A member of the Porpidia macrocarpa group (Haplocarpon) distinguished from other species of Porpidia by the presence of papillate isidia.


Why suggested for a Global Red List Assessment?

Known only from ultamafic rocks at three localities in Europe. Ultramafic sites in general are under threat from deforestation, mining, exotic species invasions, and atmospheric deposition of pollutants such as heavy metals or previously limiting nutrients such as nitrogen.


Geographic range

One locality in each of Czech Republic, Spain, and United Kingdom


Population and Trends

Unknown. Last collected in 1997

Population Trend:


Habitat and Ecology

Occurs only on exposed ultramafic rocks


Threats

Ultramafic substrata are undergoing drastic changes due to ever-expanding development, deforestation, mining, exotic species invasions, and atmospheric deposition of pollutants such as heavy metals or previously limiting nutrients such as nitrogen (Williamson & Balkwill 2006; Rajakaruna & Boyd 2008; Harrison & Rajakaruna 2011). Such changes can have a drastic impact on the biota of these unique habitats.


Conservation Actions


Research needed

Surveys in support of conservation efforts should be encouraged to document the wealth of biological diversity frequently being lost from such sites worldwide. These sites should be better explored to generate data for effective conservation planning.


Use and Trade


Bibliography

Fryday, A.M. 2005: The genus Porpidia in northern and western Europe, with special emphasis on collections from the British Isles. Lichenologist 37(1): 1-35.

Palice, Z., Slavíková-Bayerová, S., Gruna, B., Liska, J. Uhlík, P. 2005: Poznámka k vyskytu Porpidia nadvornikiana v Ceské Republice [A note on the occurrence of Porpidia nadvornikiana in the Czech Republic]. Bryonora 35: 6-8.

Rajakaruna, N., Knudsen, K., Fryday, A.M., O’Dell, R.E., Pope, N., Olday, F.C. & Woolhouse, S. 2012: Investigation of the importance of rock chemistry for saxicolous lichen communities of the New Idria serpentinite mass, San Benito County, California, USA. Lichenologist 44: 695-714.

Sánchez-Biezma, M.J. & López de Silanes, M.E. 1999: Porpidia nadvornikiana, a species of ultrabasic rocks: second record for Europe. Lichenologist 31(6): 637-639.

Vezda, A. 1972: Haplocarpon nadvornikianum Vezda sp. nov. Preslia 44: 208-212.
Williamson, S. D. & Balkwill, K. (2006) Factors determining levels of threat to serpentine endemics. South African Journal of Botany 72: 619–626.


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted