Surveys for Desmoulin’s Whorl Snail Vertigo moulinsiana on Cors Geirch SSSI, Geyer’s Whorl Snail Vertigo geyeri on Cors Geirch SSSI & Cors Erddreiniog SSSI, 2019

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Geyer’s Whorl Snail Vertigo geyeri has been recorded from three sites in Wales. However, surveys of Cors Erddreiniog SSSI in 2016 and of Cors Geirch SSSI in 2016 and 2017 failed to locate the snail. It was feared that V. geyeri had been lost from both sites but, as small populations of this tiny snail can easily be overlooked, it was felt premature to declare the snail as extinct and additional surveys were therefore undertaken at both sites in October 2019. The survey focussed upon two areas of potentially suitable habitat that had been recently surveyed; (1) an area of horse-grazed ‘Carex-lawn’ within the National Nature Reserve where V. geyeri had been reported in 1998 and (2) a series of base-rich flushes lying towards the western end of the National Nature Reserve last surveyed in 2016.

Identification

Dynodydd
Identifier
NRW_DS124734
Laith Metadata
Metadata Language
English
Lineage

Surveys for Vertigo geyeri were undertaken on Cors Erddreiniog on 14th and 16th October 2019 (Figures 2 & 3) and on Cors Geirch (Figure 4) on 15th October 2019. Sampling relied primarily upon the well-established technique of selecting potentially suitable habitat and then removing sample material for later laboratory processing as this tiny snail is typically very difficult to locate in the field.
Additional Information

Willing, M. J. 2020. Surveys for Desmoulin’s Whorl Snail Vertigo moulinsiana on Cors Geirch SSSI and for Geyer’s Whorl Snail Vertigo geyeri on Cors Geirch SSSI & Cors Erddreiniog SSSI in 2019. NRW Evidence Report No. 404.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2020-02-01
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 

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
  • Database ()

    Specification

    [A] Database: records held in WID [B] Documents: pdf of the report in the DMS report archive.

 

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

Surveys for Vertigo geyeri were undertaken on Cors Erddreiniog on 14th and 16th October 2019 (Figures 2 & 3) and on Cors Geirch (Figure 4) on 15th October 2019. Sampling relied primarily upon the well-established technique of selecting potentially suitable habitat and then removing sample material for later laboratory processing as this tiny snail is typically very difficult to locate in the field.
 

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
  • Desmoulin's whorl snail
  • vertigo moulinsiana
  • whorl snails
  • vertigo moulinsiana
  • geyer's whorl snail
  • vertigo geyeri
  • Cors Geirch
  • Cors Erddreiniog
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
NONE
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

NRW Related Title

Surveys for Geyer’s Whorl Snail Vertigo geyeri on Cors Erddreiniog SSSI & Cors Geirch SSSI and for Desmoulin’s Whorl Snail Vertigo moulinsiana on Cors Geirch SSSI in 2019
 

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Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

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There are no access restrictions on this data. NRW may release, publish or disseminate it freely.
 

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Other restrictions
Other restrictions
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© 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.
 

Attribution Statement

Other constraints
Open Government Licence (OGL)
 

Licence

Other constraints
Open Government Licence (OGL)
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313234373334 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T09:41:08.121Z
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
 
 

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