Monitoring of the Atlantic Woodland Bryophyte Assemblage in Ceunant Llennyrch National Nature Reserve
Monitro Casgliad Gwarchodfa Natur Genedlaethol Ceunant Llennyrch o Fryoffyt Coetirol yr Iwerydd.

  • English
  • wel
  • All

Ceunant Llennyrch National Nature Reserve (NNR) supports a nationally important Atlantic woodland bryophyte assemblage, which was surveyed in 2014 by the grid-mapping of species and by the establishment of fixed-point photographic plots. This report provides the results of the first comparable re-monitoring of the assemblage.


Results show that between 2014 and 2026 the assemblage generally remained more-or-less stable, with the aggregated abundance of the most notable species increasing slightly, by 7%, from 211 to 226 occupied 10 m grid cells.

Identification

Dynodydd
Identifier
NRW_DS161544
Teitl Amgen
Alternative Title
Laith Metadata
Metadata Language
English
Lineage

Data was collected in the field following the Bryophyte Grid Mapping Protocol. A total of 574 OS 10 m grid cells was surveyed during the base-line monitoring in 2014, covering all of the accessible ravine habitat and the best areas of oceanic woodland within the NNR.


During this study in January 2026, all of these grid cells were revisited and a search of each was undertaken for members of the Atlantic woodland bryophyte assemblage and other notable species.
Dyddiad cyfeirnod y set ddata (Creu)
Dataset Reference Date (Creation)
2026-06-04
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2026-09-14

Temporal Extent

Begin date
2014-11-01
End date
2026-01-31
 
Categori pwnc
Topic category
  • Biota
    Biota
Cychwynnwr
Originator
  Bryophyte Surveys Ltd -
10 The Scop Almondsbury , Bristol , South Gloucestershire , BS32 4DU
https://www.bryophytesurveys.co.uk
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 

Extent

Extent

Hyd
Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Delimited ( Unknown )

    Specification

    Excel

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
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

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

Data was collected in the field following the Bryophyte Grid Mapping Protocol. A total of 574 OS 10 m grid cells was surveyed during the base-line monitoring in 2014, covering all of the accessible ravine habitat and the best areas of oceanic woodland within the NNR.


During this study in January 2026, all of these grid cells were revisited and a search of each was undertaken for members of the Atlantic woodland bryophyte assemblage and other notable species.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • bryophyte
  • Bryophyte monitoring
  • NNR (National Nature Reserves)
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2026-08-27
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords
 

Spatial Reference System

Code
British National Grid (EPSG:27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
noLimitations
 

Access Constraints Text

Other constraints

There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© 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

Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
 

Licence

Other constraints
Open Government Licence
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313631353434 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-09-28T14:24:41.222Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales -
Maes y Ffynnon , Bangor , LL57 2DW , Wales
 
 

Publishing Body

Access the portal