Nephroma tangeriense
Key Details
| Taxonomic Groups: | Fungus or lichen > lichen > Lichen |
| Red List Status: | Near Threatened (Not Relevant) [NT(nr)] |
| D5 Status: | Included in the baseline Red List Index for England (Wilkins, Wilson & Brown, 2022) |
| Section 41 Status: | (not listed) |
| Taxa Included Synonym: | (none) |
| UKSI Recommended Name: | Nephroma tangeriense |
| UKSI Recommended Authority: | (Maheu & A. Gillet) Zahlbr. |
| UKSI Recommended Qualifier: | (none specified) |
| Red List Citation: | Woods & Coppins, 2012 |
| Notes on taxonomy/listing: | (none) |
Criteria
| Question 1: | Does species need conservation or recovery in England? |
| Response: | Yes |
| Justification: | A very localised species in England (4 hectads from 2000, BLS 2025), appears to be shrinking in range in GB but taxonomic status uncertain. |
| Question 2: | Does recovery/ conservation depend on species-specific actions? |
| Response: | Yes |
| Justification: | Confused with foliose forms of Nephroma laevigatum. Specific research required. Vulnerable to threats such as overgrowth by ivy and reduced grazing. |
| Question 3: | At a landscape scale, would the species benefit from untargeted habitat management to increase habitat mosaics, structural diversity, or particular successional stages? |
| Response: | Yes |
| Justification: | Likely to benefit from coastal grazing creating and maintaining short turf/soil niches. |
Species Assessment
| Current step on the Species Recovery Curve (SRC): | 2. Biological status assessment exists |
| Recovery potential/expectation: | Unknown |
| National Monitoring Resource: | Opportunistic - insufficient |
| Species Comments: | Much confused with foliose forms of the commoner Nephroma laevigatum. |
Key Actions
Key Action 1
Proposed Action: Establish presence of species in England using DNA barcoding to test known populations and herbarium material.
Action targets: 2. Biological status assessment exists
Action type: Status survey/review
Duration: 3-5 years
Scale of Implementation: ≤ 20 sites
High priority sites:
Comments: Confused with foliose forms of Nephroma laevigatum, status in England uncertain.
Key Action 2
Proposed Action: Following Action 1, produce a species dossier to collate information on current and historic sites, including surveying sites to assess current status, threats and remedial actions
Action targets: 5. Remedial action identified
Action type: Status survey/review
Duration: 3-5 years
Scale of Implementation: ≤ 20 sites
High priority sites:
Comments:
Key Action 3
Proposed Action: Advise and support site owners and managers to implement the site-level actions identified in A2.
Action targets: 7. Best approach adopted at appropriate scales
Action type: Advice & support
Duration: 6-10 years
Scale of Implementation: ≤ 20 sites
High priority sites:
Comments:
Acknowledgment:
Data used on this website are adapted from Threatened species recovery actions 2025 baseline (JP065): Technical report and spreadsheet user guide (Natural England, 2025). Available here.