Special Area of Conservation (SAC) Monitoring: Vertigo geyeri in Waun Eurad and Cors Erddreiniog SACs (2003-2007)

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Geyers whorl Snail, Vertigo geyeri is listed on Annex II of the European Union Habitats and Species Directive, classified in the British Red Data Book as RDB1 (Endangered), and is on the list of priority species of the UK Biodiversity Action Plan (BAP). The purpose of this study was to undertake monitoring of the Vertigo geyeri population at Waun Eurad and Cors Erddreiniog, in order to carry out a condition assessment and to determine the attributes that will be assessed by future monitoring, which is a requirement of the EU Habitats and Species Directive.

Identification

Dynodydd
Identifier
NRW_DS115587
Teitl Amgen
Alternative Title
  • Arolygu ACA: Arolygu Vertigo geyeri yn Ardaloedd Cadwraeth Arbennig Waun Eurad a Chors Erddreiniog
Laith Metadata
Metadata Language
English
Lineage

The monitoring of condition followed the common standards approach outlined by the Joint Nature Conservation Committee, and the methodology and approach was an adaptation of the monitoring protocol developed for a cSAC in northern England. Condition of the snail population and its habitat at Waun Eurad was carried out by measuring environmental variables and snail numbers at intervals along two linear transects (64m and 105m in length). The attributes used to assess Condition were: - Area of occupancy of Vertigo geyeri habitat in both transects - Area of occupancy of Vertigo geyeri in both transects - Number of overall positive recordings per number of field samples - Hydrological field assessment Condition at Cors Erddreiniog was assessed by a survey of the compartments of the site where V. geyeri had been previously recorded or supported suitable habitat, plus a more detailed survey of the area where V. geyeri had been recorded most often. The attributes used to assess Condition were as based on area of occupancy of snail habitat, area of occupancy of snail, number of overall positive recordings per number of field samples, and hydrological field assessment.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2008-02-28
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Moorkens
Evelyn Moorkens and Associates, 53 Charleville Square, Rathfarnham, Dublin 14, Ireland
<!__ Nowebsite __!>
Cychwynnwr
Originator
  Killeen
163 High Road West, Felixstowe, Suffolk, IP11 9BD
<!__ Nowebsite __!>
 

Extent

Extent

Hyd
Geographic Extent
SIR YNYS MON - ISLE OF ANGLESEY
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

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

    Specification

    [A] The final report in Microsoft Word and Adobe PDF formats. [B] Figures associated to the Report in JPEG Format. [C] A set of images produced in JPEG format [D] Raw data held within an Excel Workbook

 

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
Degree
false
Lineage

The monitoring of condition followed the common standards approach outlined by the Joint Nature Conservation Committee, and the methodology and approach was an adaptation of the monitoring protocol developed for a cSAC in northern England. Condition of the snail population and its habitat at Waun Eurad was carried out by measuring environmental variables and snail numbers at intervals along two linear transects (64m and 105m in length). The attributes used to assess Condition were: - Area of occupancy of Vertigo geyeri habitat in both transects - Area of occupancy of Vertigo geyeri in both transects - Number of overall positive recordings per number of field samples - Hydrological field assessment Condition at Cors Erddreiniog was assessed by a survey of the compartments of the site where V. geyeri had been previously recorded or supported suitable habitat, plus a more detailed survey of the area where V. geyeri had been recorded most often. The attributes used to assess Condition were as based on area of occupancy of snail habitat, area of occupancy of snail, number of overall positive recordings per number of field samples, and hydrological field assessment.
 

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
  • Waun Eurad
  • Cors Erddreiniog
  • Special Area of Conservation Monitoring
  • vertigo geyeri
  • geyer's whorl snail
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2023-12-31
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

2007 Condition Monitoring of Vertigo geyeri in Waun Eurad and Cors Erddreiniog SAC
NRW Related Title

Condition Monitoring of Vertigo geyeri on Cors Erddreiniog and Waun Eurad : Corsydd Mon/Anglesey Fens candidate Special Area of Conservation), 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

There are no access restrictions to 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 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.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313135353837 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Condition monitoring of Special Areas of Conservation (SACs) in Wales

NRW_DS110194
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T09:22:14.438Z
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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