4f4c4942-4343-5764-6473-313234363934 English NRW_DS23774 Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2024-05-31T09:37:24.364Z NRW 1.0 wel NONE An assessment of the condition of the Narrow-mouthed Whorl Snail Vertigo angustior at Whiteford Burrows NNR, October 2018 An assessment of the condition of the Narrow-mouthed Whorl Snail Vertigo angustior at Whiteford Burrows NNR, October 2018 2020-01-01 NRW_DS124694 Single day assessment visit was undertaken in October 2018. which allowed an overview site-survey, combined with off-site bulk sample analysis, to assess most of the sand dune/salt marsh transition zone and allowing the field assessment of the snail at 11 sites, which also involved the removal of bulk vegetation samples for off-site determination of snail presence. The results revealed V. angustior to be present at seven sites including several in the northern transition zone, an area in which the snail had not been recorded previously and which had been overlooked for study since the 1993 survey. The 2018 results demonstrated the presence of the snail over a linear distance of 1.9km extending the previously recorded range by 1.2 km, a 171% increase Single day assessment visit was undertaken in October 2018. which allowed an overview site-survey, combined with off-site bulk sample analysis, to assess most of the sand dune/salt marsh transition zone and allowing the field assessment of the snail at 11 sites, which also involved the removal of bulk vegetation samples for off-site determination of snail presence. The results revealed V. angustior to be present at seven sites including several in the northern transition zone, an area in which the snail had not been recorded previously and which had been overlooked for study since the 1993 survey. The 2018 results demonstrated the presence of the snail over a linear distance of 1.9km extending the previously recorded range by 1.2 km, a 171% increase Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en sd">Species distribution Species distribution GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme narrow-mouthed whorl snail whorl snails vertigo moulinsiana snails Whiteford Burrows Whiteford NNR NRW Thesaurus NRW Thesaurus 2023-12-31 geonetwork.thesaurus.local.theme.converted_nrw-keywords There are no access restrictions on this data. NRW may release, publish or disseminate it freely. no limitations © 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. Open Government Licence (OGL) Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. English biota SeaVoX Vertical Co-ordinate Coverages SeaVoX Vertical Co-ordinate Coverages 2021-01-06 Wales (WLS) -5.777741 -2.608865 51.240829 53.513067 2018-10-17 2018-10-17 Willing, M.J. 2020. An assessment of the condition of the Narrow-mouthed Whorl Snail Vertigo angustior at Whiteford Burrows NNR, October 2018. NRW Evidence Report No. 395 An assessment of the condition of the Narrow-mouthed Whorl Snail Vertigo angustior at Whiteford Burrows NNR, October 2018 Database [A] Database: records held in WID [B] Documents: pdf of the report in the DMS report archive. 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 2010-12-08 false 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 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