Special Area of Conservation (SAC) Monitoring: Vertigo geyeri in Waun Eurad and Cors Erddreiniog SACs (2003-2007)
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
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS115587
- Alternative Title
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- Arolygu ACA: Arolygu Vertigo geyeri yn Ardaloedd Cadwraeth Arbennig Waun Eurad a Chors Erddreiniog
- Metadata Language
- English
- Lineage
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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.
- Dataset Reference Date (Publication)
- 2008-02-28
Temporal Extent
- Begin date
- 2003-01-01
- End date
- 2008-02-29
- Topic category
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- Biota
Extent
Extent
- Geographic Extent
- SIR YNYS MON - ISLE OF ANGLESEY
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Distribution
- Format Type and Description
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Documents
()
- Specification
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[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
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Documents
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Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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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
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- Waun Eurad
- Cors Erddreiniog
- Special Area of Conservation Monitoring
- vertigo geyeri
- geyer's whorl snail
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
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2007 Condition Monitoring of Vertigo geyeri in Waun Eurad and Cors Erddreiniog SAC
- NRW Related Title
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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
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© 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
- File Identifier
- 4f4c4942-4343-5764-6473-313135353837 XML
- Metadata Language
- English
- Parent Identifier
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Condition monitoring of Special Areas of Conservation (SACs) in Wales
NRW_DS110194
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:22:14.438Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0