A survey of calaminarian grassland in Mid-Wales

The aims of this project were to refine guidance on calaminarian habitat definition for mid-Wales, and to provide data and information on the extent of the different forms. The purpose of this data capture was to assess calaminarian grassland habitat types, condition and extent for each site, and to gather information on the distribution and frequency of metallophytes and other notable species. This was done by detailed survey of the plants and lichens of the calaminarian grasslands on 27 abandoned mine sites in mid-Wales, 26 in Ceredigion and 1 in Montgomeryshire, with mapping of the compartments in GIS. A wide variation in the character of calaminarian habitat was observed, including grass-dominated examples, metallophyte-rich heathland and largely-bare highly-contaminated land. Some of the vegetation was considered distinctive in both a British and European context. A total of 90 vascular plants, 38 bryophytes, 227 lichens and 15 lichenicolous fungi were recorded, including many species of conservation concern. Categories of calaminarian habitat types in mid Wales are presented, to facilitate future mapping of the habitat.

Identifier: NRW_DS116527

Alternative Title

Mapio glaswelltir calaminaraidd yng Nghanolbarth Cymru (2014)

Metadata Language: English

Lineage: Vegetation compartments (including rock and bare ground) were mapped on site by walkover survey, using a satellite image to identify boundaries. Those that appeared to have been influenced by heavy metals were surveyed for all vascular plant, lichen and bryophyte taxa by recording those present in three representative areas of each compartment, supplemented by a more thorough search for metallophytes and other taxa indicative of habitat quality. Abundance was recorded using the DAFOR scale.

Additional Information: Survey of calaminarian grassland in mid-Wales March 2016 NRW Evidence report 061.

Dataset Reference Date (Publication): 2016-03-30

Temporal Extent

Begin date: 2014-09-07

End date: 2014-11-30

Topic category

Biota

Owner

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Originator

Simkin

41 North Road, Ponteland, Newcastle upon Tyne, NE20 9UN

Extent

Geographic Extent: Montgomeryshire (47)

Geographic Extent: SIR CEREDIGION - CEREDIGION

Map representing the geographic extent of the dataset

Format Type and Description

Documents ()

Specification

[A] ArcGIS layers [B] Excel spreadsheets: Lichen records are held in the British Lichen Society database and will be available on the NBN Gateway by autumn 2016.

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
Degree: false

Lineage: Vegetation compartments (including rock and bare ground) were mapped on site by walkover survey, using a satellite image to identify boundaries. Those that appeared to have been influenced by heavy metals were surveyed for all vascular plant, lichen and bryophyte taxa by recording those present in three representative areas of each compartment, supplemented by a more thorough search for metallophytes and other taxa indicative of habitat quality. Abundance was recorded using the DAFOR scale.

Keywords

GEMET - INSPIRE themes, version 1.0

Species distribution

Type: Theme

Citation

Date (Publication): 2008-06-01

Code: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus

Site of Special Scientific Interest (SSSI)
lichens
lead mining

Type: Theme

Citation

Date (Publication): 2023-12-31

Code: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Code: British National Grid (EPSG::27700)

Content Information

NRW Profile

Custom Elements

NRW Related Title: A survey of calaminarian grassland in mid-Wales - CONFIDENTIAL

Constraints

Limitations on Public Access and Use

Restriction type: Other restrictions

Access Constraints Directive

Limitations: no limitations

Access Constraints Text

Other constraints: 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: © 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.

Metadata

File Identifier: 4f4c4942-4343-5764-6473-313136353237 XML

Metadata Language: English

Resource type: Dataset

Metadata Date: 2024-05-31T09:41:22.888Z

Metadata Standard Name: NRW

Metadata Standard Version: 1.0

pointOfContact

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Publishing Body

Access the portal

Full access to the portal and metadata.

A survey of calaminarian grassland in Mid-Wales

Identification

Temporal Extent

Extent

Extent

Distribution

Quality

Data quality

Keywords

Keywords

Citation

Keywords

Citation

Spatial Reference System

Content

Content Information

NRW Profile

Custom Elements

Constraints

Constraints

Limitations on Public Access and Use

Access Constraints Directive

Access Constraints Text

Use Constraints

Metadata

Metadata

Publishing Body