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

Wadeana dendrographa (Nyl.) Coppins & P. James

Go to another Suggested Species...

Scientific name
Wadeana dendrographa
Author
(Nyl.) Coppins & P. James
Common names
 
IUCN Specialist Group
Lichens
Kingdom
Fungi
Phylum
Ascomycota
Class
Lecanoromycetes
Order
Rhizocarpales
Family
Catillariaceae
Assessment status
Under Assessment
Proposed by
David Minter
Assessors
David Minter
Contributors
Olga Nadyeina
Comments etc.
Brian Coppins, Anders Dahlberg

Assessment Status Notes

Taxonomic notes


Why suggested for a Global Red List Assessment?

Ash dieback caused by Hymenoscyphus pseudoalbidus Queloz, Grünig, Berndt, T. Kowalski, T.N. Sieber & Holdenr. (better known by the synonym Chalara fraxinea T. Kowalski) is likely to result in significant loss of habitat as it spreads across Europe. In the UK the species is already under threat from loss of old ash trees and excessive shading as a result of inappropriate woodland management. In the UK, ash and sycamore buffered lichens from Dutch elm disease, now with ash threatened, only sycamore remains as a suitable habitat. ELLIS ET AL. (2012) proposed that lichens with more than half of all records on ash should be regarded as specially threatened, and this may be the case for W. dendrographa. Using IUCN categories and criteria, Cannon & Minter (2013) assessed this species globally as Threatened.


Geographic range

EUROPE: France, Ireland, Portugal, Spain, UK. NORTH AMERICA: USA. These records are probably within the natural distribution of this fungus. No information about altitudinal distribution was found.


Population and Trends

There are over 800 records of this lichen-forming fungus.

Population Trend: Deteriorating


Habitat and Ecology

A lichen-forming species occurring on rough nutrient-rich bark in wood-pasture and parkland, and lowland mixed deciduous woodlands. In the UK, it is very local in southern England with a few scattered sites north to western Scotland. Alnus sp.; Fraxinus excelsior L. (bark), Fraxinus sp. (bark); Quercus robur Hoffm. subsp. robur [as Q. pedunculata Hoffm.] (bark), Quercus sp.; Ulmus sp. (bark). No information was found about the photobiont. Nothing is known of interactions between this fungus and animals or other fungi.


Threats

Ash dieback caused by Hymenoscyphus pseudoalbidus Queloz, Grünig, Berndt, T. Kowalski, T.N. Sieber & Holdenr. (better known by the synonym Chalara fraxinea T. Kowalski) is likely to result in significant loss of habitat as it spreads across Europe. In the UK the species is already under threat from loss of old ash trees and excessive shading as a result of inappropriate woodland management. In the UK, ash and sycamore buffered lichens from Dutch elm disease, now with ash threatened, only sycamore remains as a suitable habitat. ELLIS ET AL. (2012) proposed that lichens with more than half of all records on ash should be regarded as specially threatened, and this may be the case for W. dendrographa.


Conservation Actions

In situ: none noted. Ex situ: no sequences were found in a search of the NCBI, GenBank database [www.ncbi.nlm.nih.gov]. No living strains of this species were found in a search of the Culture Collection Information Worldwide on-line catalogue [www.wfcc.info/ccinfo/home].


Research needed


Bibliography

CANNON, P.F. & MINTER, D.W. Wadeana dendrographa. IMI Descriptions of Fungi and Bacteria No. 1950 (2013). ELLIS, C.J., COPPINS, B.J. & HOLLINGSWORTH, P.M. Tree fungus: lichens under threat from ash dieback. Nature 491: 672 (2012). SMITH, C.W., APTROOT, A., COPPINS, B.J., FLETCHER, A., GILBERT, O.L., JAMES, P.W. & WOLSELEY, P.A. The Lichens of Great Britain and Ireland. x + 1046 pp., London: British Lichen Society (2009) [ISBN 978 0954041885].


Known distribution - countries

Regional Population and Trends

Country Trend Redlisted