The Distribution of the Narrow-mouthed Whorl Snail Vertigo angustior on Whiteford Burrows & Cwm Ivy Marsh - September 2021

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Whiteford Burrows is a dune system lying on the north-west coast of the Gower Peninsula and is part of the much larger Carmarthen Bay Dunes/Twyni Bae Caerfyrddin SAC. The Narrow-mouthed Whorl Snail Vertigo angustior, listed on the EC Habitats & Species Directive Annex IIa, was first found on Whiteford Burrows in May 1983 - a new live record for the species not only in Wales but also in western Britain. Previous V. angustior studies have been carried out at this location between 1983 and 2018. It was suggested that further surveys be undertaken at the far north-east of the transition zone, throughout the main body of the dune system (focussing upon areas in damp hollows and on the margins of dune slacks where the water table is near the surface) and with a survey of the Cwm Ivy Marsh marine/terrestrial transition zone recently formed with the area now subject to tidal inflow.

Identification

Dynodydd
Identifier
NRW_DS125526
Laith Metadata
Metadata Language
English
Lineage

Survey work was undertaken on three days, 27th to 29th September 2021. Survey locations were chosen with a focus on (1) the relatively recently established upper salt marsh transition zone of Cwm Ivy Marsh at the south and (2) areas not previously visited lying at the extreme north and and centre of the dunes and so avoiding the previous focus on the eastern saltmarsh / sand dune transition zone. A total of 29 sites were surveyed. Site survey involved: 1. visual examination of vegetation and ground litter; 2. beating vegetation onto a white gridded tray and examining debris with a X6 magnifier; 3. shaking dry moss and low growing fresh and dead plant material through a two-tier 2mm and 0.5mm sieve stack
Additional Information

Willing, M.J. 2023. The distribution of the Narrow-mouthed Whorl Snail Vertigo angustior on Whiteford Burrows & Cwm Ivy Marsh in September 2021. NRW Evidence Report No. 698. 47pp. Natural Resources Wales, Bangor.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2023-06-01
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
ABERTAWE - SWANSEA
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword
 
 

Distribution

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

    Specification

    The data archive contains: The final report in Microsoft Word and Adobe PDF formats. Species records held in Welsh Invertebrate Database (WID).

 

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

Survey work was undertaken on three days, 27th to 29th September 2021. Survey locations were chosen with a focus on (1) the relatively recently established upper salt marsh transition zone of Cwm Ivy Marsh at the south and (2) areas not previously visited lying at the extreme north and and centre of the dunes and so avoiding the previous focus on the eastern saltmarsh / sand dune transition zone. A total of 29 sites were surveyed. Site survey involved: 1. visual examination of vegetation and ground litter; 2. beating vegetation onto a white gridded tray and examining debris with a X6 magnifier; 3. shaking dry moss and low growing fresh and dead plant material through a two-tier 2mm and 0.5mm sieve stack
 

Keywords

Allweddair
Keywords

NRW Thesaurus
  • Whiteford Burrows
  • vertigo angustior
  • Cwm Ivy Marsh SSSI
  • narrow-mouthed whorl snail
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2024-04-09
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

The Distribution of the Narrowmouthed Whorl Snail Vertigo angustior on Whiteford Burrows & Cwm Ivy Marsh in September 2021
 

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 on 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 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
4f4c4942-4343-5764-6473-313235353236 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T09:38:33.171Z
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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