Audit of Marsh Fritillary (Euphydryas aurinia) Habitat Management in Merthyr Tydfil County Borough Council (CBC) (3rd Party Data)

The Marsh fritillary Euphydryas aurinia is a UK Biodiversity Action Plan (UK BAP) priority species and has been listed by the Welsh Government as species of Principal Importance for the Conservation of Biological Diversity in Wales (Section 74 species Countryside and Rights of Way Act 2000). This species is now confined to the south-western counties of England, south and west Wales, western Scotland and Ireland. There is some evidence to suggest that the species range is continuing to contract along eastern edge having previously been lost in central and eastern parts of England. It has also become scarcer within this range with healthy populations now any appearing to persist where there is sufficient habitat to support their meta-populations (dynamic network of colonies) in which the species naturally occurs. Nevertheless in parts of this range its status maybe poorly known due to recording issues. For species existing in meta-populations, as is the case with many of our scarce butterflies, the quality and abundance of available habitat within colonising distance of local populations is extremely important. In Wales there is increasing emphasis on mapping these patches of habitat to complement surveys of marsh fritillary Euphydryas aurinia adults and larval webs. This dataset consists of an ArcMap layer of the condition of habitat polygons for marsh fritillaries in Merthyr Tydfil County Borough Council (CBC) to help inform planning decisions. The purpose of this data capture was to ascertain the extent and condition of habitat capable of supporting populations of marsh fritillaries in order to provide scientifically-justified guidance to inform planning decisions.

Identifier: EXT_DS115371

Alternative Title

\Biological\Species sourced by NRW\Terrestrial\Invertebrates\Insects\
Arolygu cynefin brithegion y gors yng Nghyngor Bwrdeistref Sirol Merthyr Tudful

Metadata Language: English

Lineage: An area of 306 ha was covered by field surveyors across Merthyr Tydfil CBC. The boundary of the survey area was constructed on standard patterns imposed upon the landscape in relation to the location of known marsh fritillary sites. Marsh fritillary records are plotted on a map (preferably via GIS) and then circles of a one kilometre radius are drawn from each record. Where there are several records for a particular enclosure one circle is drawn from the centre point of these records. After plotting the record circles, overlapping circle areas are then combined (this can be done automatically on GIS) to produce the final landscape boundary. Once the landscape boundaries have been drawn the next stage is to undertake a preliminary sift by examining Phase One survey maps and plotting the location of examples of a variety of habitat categories. Within each enclosure patches were mapped according to the specific definitions and ideally drawn onto recent aerial photographs of a suitable scale (preferably 1:10,000 or better) in the field. Failing this 1:10,000 OS maps should be used. This dataset is considered of high quality collected under contract by experienced surveyors.

Dataset Reference Date (Publication): 2003-12-31

Owner

Merthyr Tydfil County Borough Council

Civic Centre, Castle Street, Merthyr Tydfil, CF47 8AN

www.merthyr.gov.uk

Originator

Merthyr Tydfil County Borough Council

Civic Centre, Castle Street, Merthyr Tydfil, CF47 8AN

www.merthyr.gov.uk

Extent

Geographic Extent: Glamorgan (41)

Format Type and Description

Geographic Information System Geographic Information System ()

Specification

MapInfo layer

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: An area of 306 ha was covered by field surveyors across Merthyr Tydfil CBC. The boundary of the survey area was constructed on standard patterns imposed upon the landscape in relation to the location of known marsh fritillary sites. Marsh fritillary records are plotted on a map (preferably via GIS) and then circles of a one kilometre radius are drawn from each record. Where there are several records for a particular enclosure one circle is drawn from the centre point of these records. After plotting the record circles, overlapping circle areas are then combined (this can be done automatically on GIS) to produce the final landscape boundary. Once the landscape boundaries have been drawn the next stage is to undertake a preliminary sift by examining Phase One survey maps and plotting the location of examples of a variety of habitat categories. Within each enclosure patches were mapped according to the specific definitions and ideally drawn onto recent aerial photographs of a suitable scale (preferably 1:10,000 or better) in the field. Failing this 1:10,000 OS maps should be used. This dataset is considered of high quality collected under contract by experienced surveyors.

Keywords

GEMET - INSPIRE themes, version 1.0

Type: Theme

Citation

Date (Publication): 2008-06-01

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

Keywords

NRW Thesaurus

eurodryas aurinia (Euphydryas aurinia)
marsh fritillary butterfly

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: Audit of Marsh Fritillary (Euphydryas aurinia) Habitat Management in Bridgend County Borough Council (CBC) area August 2002 (3rd Party Data)

NRW Related Title: Assessment of Rhos Pasture Habitat in Caerphilly County Borough Council (CBC) in respect of its Suitability and Condition for the Priority Butterfly Marsh Fritillary (Euphydryas aurinia) (3rd Party Data)

NRW Related Title: Audit of Marsh Fritillary (Euphydryas aurinia) within the Mynydd Mawr Special Area of Conservation (SAC) Extended Landscape for Habitat Management in Carmarthen County Borough Council (CBC) (3rd Party Data)

NRW Related Title: Audit of Marsh Fritillary (Euphydryas aurinia) Habitat Management in Neath Port Talbot (3rd Party Data)

NRW Related Title: Audit of Marsh Fritillary (Euphydryas aurinia) Habitat Management in Rhondda Cynon Taff County Borough Council (CBC) (3rd Party Data)

NRW Related Title: All Wales Marsh Fritillary ( Euphydryas aurinia ) Habitat Quality Master Map

Constraints

Limitations on Public Access and Use

Restriction type: Other restrictions

Access Constraints Directive

Limitations: no limitations

Access Constraints Text

Other constraints: This dataset is wholly owned by Merthyr Tydfil CBC NRW may provide access to this dataset on request in some circumstances. However, enquirers are advised to obtain a copy from the owner/originator directly, rather than NRW. NRW may NOT publish or disseminate it in its entirety.

Use Constraints

Use constraints type: Other restrictions

Other constraints: © Merthyr Tydfil CBC NRW does NOT grant permission to third parties to re-use or disseminate this dataset. Those seeking such permission should approach the originator directly.

Metadata

File Identifier: 4f4c4942-4343-5764-6473-313135333731 XML

Metadata Language: English

Parent Identifier: Assessment of Rhos Pasture Habitat in Caerphilly County Borough Council (CBC) in respect of its Suitability and Condition for the Priority Butterfly Marsh Fritillary (Euphydryas aurinia) (3rd Party Data)
EXT_DS115368

Resource type: Dataset

Metadata Date: 2024-05-31T09:37:30.827Z

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.

Audit of Marsh Fritillary (Euphydryas aurinia) Habitat Management in Merthyr Tydfil County Borough Council (CBC) (3rd Party Data)

Identification

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