4f4c4942-4343-5764-6473-313235313534 English Natural Resources Wales (NRW) Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales enquiries@naturalresourceswales.gov.uk http://naturalresources.wales/?lang=en 2026-01-09T15:20:13.002Z NRW 1.0 wel NONE An invertebrate survey of Llangennith Moors 2018 An invertebrate survey of Llangennith Moors 2018 2021-12-01 NRW_DS125154 Llangennith Moors grazing marsh lies at the extreme western end of the Gower Peninsula. Before this survey, the invertebrate interest of the site was little known, with the only previous survey having been carried out in July 1991 which had a focus upon Diptera. Due to the minimal invertebrate knowledge of the site and relative absence of ditch maintenance there since the 1990s, Natural Resources Wales commissioned a survey of ditch and fen invertebrates and a search for two whorl snails of European importance, the Narrow-mouthed Whorl Snail Vertigo angustior (which is found on the nearby Whiteford Burrows and Oxwich Burrows) and Desmoulin’s Whorl Snail Vertigo moulinsiana, which is found in similar habitat on the south Llŷn coast in North Wales. The surveys were aimed at determining the current invertebrate interest of Llangennith Moors following a sea wall breach and subsequent managed retreat at Cwm Ivy Marsh and the loss of grazing marsh to saltmarsh. The Llangennith surveys were undertaken simultaneously by two surveyors in October 2018. Llangennith Moors grazing marsh lies at the extreme western end of the Gower Peninsula. Before this survey, the invertebrate interest of the site was little known, with the only previous survey having been carried out in July 1991 which had a focus upon Diptera. Due to the minimal invertebrate knowledge of the site and relative absence of ditch maintenance there since the 1990s, Natural Resources Wales commissioned a survey of ditch and fen invertebrates and a search for two whorl snails of European importance, the Narrow-mouthed Whorl Snail Vertigo angustior (which is found on the nearby Whiteford Burrows and Oxwich Burrows) and Desmoulin’s Whorl Snail Vertigo moulinsiana, which is found in similar habitat on the south Llŷn coast in North Wales. The surveys were aimed at determining the current invertebrate interest of Llangennith Moors following a sea wall breach and subsequent managed retreat at Cwm Ivy Marsh and the loss of grazing marsh to saltmarsh. The Llangennith surveys were undertaken simultaneously by two surveyors in October 2018. 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 Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme rove beetles vertigo moulinsiana whorl snails carabidae INVERTEBRATES staphylinidae invertebrate surveys ground beetles coleoptera beetles Llangennith Moors Gower NRW Thesaurus 2025-01-08 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. Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Open Government Licence English biota SeaVoX Vertical Co-ordinate Coverages 2021-01-06 ABERTAWE - SWANSEA -4.269678 -4.268325 51.604793 51.605124 2018-10-15 2018-10-16 Willing, M.J. & Boyce, D.C. 2021. An invertebrate survey of Llangennith Moors in October 2018 An invertebrate survey of Llangennith Moors in October 2018 Database [A] The final report in Microsoft Word and Adobe PDF formats. [B] Species records, held on the NRW Recorder 6 database. 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 This dataset has not been assessed for conformance to the referenced INSPIRE regulation. false NRW commissioned a survey of the ditch invertebrate fauna in Autumn 2018. Survey work was undertaken by two contractors on 15th and 16th October 2018. The site is divided by the ditch network into several fields. These fields were each assigned a survey unit code, which was used as the basis for recording the invertebrate fauna. Many of the fields supported species-poor, improved, or semi-improved grassland of low ecological interest. The ditch network was mostly composed of ditches that were dried out or completely choked with tall emergent vegetation. As these improved fields and choked ditches had only a relatively low potential to support important wetland invertebrate assemblages, they were not the subject of more detailed follow-up invertebrate survey. Rather, survey effort was targeted towards those areas of the site that had semi-natural fen or marshy grassland and/or more open ditches with permanent standing water. NRW commissioned a survey of the ditch invertebrate fauna in Autumn 2018. Survey work was undertaken by two contractors on 15th and 16th October 2018. The site is divided by the ditch network into several fields. These fields were each assigned a survey unit code, which was used as the basis for recording the invertebrate fauna. Many of the fields supported species-poor, improved, or semi-improved grassland of low ecological interest. The ditch network was mostly composed of ditches that were dried out or completely choked with tall emergent vegetation. As these improved fields and choked ditches had only a relatively low potential to support important wetland invertebrate assemblages, they were not the subject of more detailed follow-up invertebrate survey. Rather, survey effort was targeted towards those areas of the site that had semi-natural fen or marshy grassland and/or more open ditches with permanent standing water.