Monitoring of the Atlantic woodland bryophyte assemblage of Coed Crafnant, Meirionnydd
Coed Crafnant is a nature reserve owned and managed by the North Wales Wildlife Trust, comprising part of that woodland plus the contiguous Coed Dolbebin. Almost all of the oceanic woodland habitat of the reserve is contained within Rhinog SSSI and Meirionnydd Oakwoods SAC.
The first comprehensive bryophyte survey of the reserve was undertaken during January 2014, when baseline monitoring data was collected. A further survey was undertaken in May 2022, which recorded areas of the reserve not covered in 2014, but did not repeat the species grid-mapping exercise of 2014 due to time constraints. This 2025 study aimed to repeat the grid-mapping in order to assess what changes have occurred within the Atlantic woodland bryophyte assemblage.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS161365
- Alternative Title
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- Metadata Language
- English
- Lineage
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This survey was undertaken between 17–20 February 2025 and used field recording and GPS.
In the survey, all of the grid cells surveyed in 2014 were revisited and GPS waypoints were recorded for all colonies of the above four species plus a further seven species of the Atlantic woodland assemblage, including Cololejeunea microscopica, Drepanolejeunea hamatifolia, Harpalejeunea molleri, Plagiochila bifaria, Plagiochila exigua, Plagiochila punctata and Plagiochila spinulosa. The former three species were absent from the surveyed grid cells in 2014, whilst the other species were present in 2014 but were not grid-mapped due to time constraints.
As in 2014, the GPS waypoints were loaded into GIS to produce maps of grid cells occupied by each species and a count of the number of cells occupied.
- Additional Information
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Callaghan, D.A. 2025. Monitoring of the Atlantic woodland bryophyte assemblage of Coed Crafnant, Meirionnydd. NRW Evidence Report No: 920, 50 pp, Natural Resources Wales.
- Dataset Reference Date (Creation)
- 2025-06-24
- Dataset Reference Date (Publication)
- 2026-09-17
Temporal Extent
- Begin date
- 2025-02-01
- End date
- 2025-02-28
- Topic category
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- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
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Distribution
Distribution
- Format Type and Description
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Documents
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Unknown
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- Specification
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NRW Evidence Report in word or pdf format
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Delimited
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Unknown
)
- Specification
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Excel Spreadsheet
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Documents
(
Unknown
)
Quality
Data quality
- Quality Scope
- Dataset
- Conformity
- Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Explanation
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This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Degree
- false
- Lineage
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This survey was undertaken between 17–20 February 2025 and used field recording and GPS.
In the survey, all of the grid cells surveyed in 2014 were revisited and GPS waypoints were recorded for all colonies of the above four species plus a further seven species of the Atlantic woodland assemblage, including Cololejeunea microscopica, Drepanolejeunea hamatifolia, Harpalejeunea molleri, Plagiochila bifaria, Plagiochila exigua, Plagiochila punctata and Plagiochila spinulosa. The former three species were absent from the surveyed grid cells in 2014, whilst the other species were present in 2014 but were not grid-mapped due to time constraints.
As in 2014, the GPS waypoints were loaded into GIS to produce maps of grid cells occupied by each species and a count of the number of cells occupied.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
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NRW Thesaurus
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- Bryophyte monitoring
- woodland (woodlands)
- Type
- Theme
Citation
- Date (Publication)
- 2026-08-27
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- noLimitations
Access Constraints Text
- Other constraints
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There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW. Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
Attribution Statement
- Other constraints
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Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Licence
- Other constraints
- Open Government Licence