Stoneworts in Wales
Rhawn yr Ebol yng Nghymru

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This is an excel spreadsheet that is also presented as a spatial dataset. The datasets contains a collation of all known records of stoneworts in Wales from 1726 up till July 2018.


Stoneworts (or charophytes) are a group of algae that grow in fresh and brackish water and have a relatively complex structure. They are sensitive to pollution, including nutrient enrichment, and are therefore good indicators of water quality.


Thirty species have been recorded in the UK and seventeen of these occur in Wales. Of the latter, four are Red Data Book species, six are Nationally Scarce, and nine are considered rare in Wales; three are Priority Species in the UK BAP and are included on the National Assembly of Wales' List of Species and Habitats of Principal Importance for the Conservation of Biological Diversity (the \Section 74\" list).


The purpose of this data capture is to inform understanding of the distribution and status of rare an/or threatened lichen species in Wales. This in turn will facilitate decision-making on SSSI notifications species status assessments etc.

Identification

Dynodydd
Identifier
NRW_DS100170
Teitl Amgen
Alternative Title
  • Stoneworts.LYR
  • A collation of records of stoneworts in Wales
Laith Metadata
Metadata Language
English
Lineage

Original records captured in the field, with subsequent microscopic confirmation of taxon identification where necessary. Data collation from existing databases and paper records. Based largely of field work carried out for CCW by N F Stewart.


The spreadsheet data was initially compiled in 2002 from data from the Biological Records Centre, survey reports, personal data held by interested botanists and an extensive herbarium and literature search. This was subsequently updated in 2004 and 2007. An additional 500 records have now been added to the 1500 records.


Information Warning: The spatial datasets needs to be updated to reflect that latest version of the data (March 2020).
Additional Information

Stewart NF, Hatton-Ellis TW. 2020. A Red List of Stoneworts in Wales. NRW Evidence Report No: 406, 105pp, Natural Resources Wales, Bangor.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2020-03-31

Temporal Extent

Begin date
1726-01-01
End date
2018-07-25
 
Categori pwnc
Topic category
  • Biota
    Biota
  • Environment
    Environment
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Various -
Enquiries Unit, Maes y Fynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
 

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
  • Geographic Information System ( Unknown )

    Specification

    ESRI Feature Class

 

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

Original records captured in the field, with subsequent microscopic confirmation of taxon identification where necessary. Data collation from existing databases and paper records. Based largely of field work carried out for CCW by N F Stewart.


The spreadsheet data was initially compiled in 2002 from data from the Biological Records Centre, survey reports, personal data held by interested botanists and an extensive herbarium and literature search. This was subsequently updated in 2004 and 2007. An additional 500 records have now been added to the 1500 records.


Information Warning: The spatial datasets needs to be updated to reflect that latest version of the data (March 2020).
 

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
  • stoneworts
  • geographical information systems (GIS)
  • charophytes (characeae)
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

NRW Related Title

A red list of stoneworts in Wales
 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

NRW is legally obliged to give public access to the data and information which it holds unless specific legal exceptions apply, for example, if the data is personal or if release of the data would result in environmental harm.
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CNC/NRW, 2020. There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.
 

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
4f4c4942-4343-5764-6473-313030313730 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Stoneworts in Wales (Recorder 6 Dataset)

NRW_DS46083
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-09-28T09:23:52.367Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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