4f4c4942-4343-5764-6473-313631333035 English Natural Resources Wales Maes y Ffynnon Bangor LL57 2DW Wales opendata@cyfoethnaturiolcymru.gov.uk 2026-10-02T09:23:35.686Z NRW 1.0 wel British National Grid (EPSG:27700) Survey of the Black Bog Ant Formica picea on Cors Goch, Llanllwch SSSI in 2024 Survey of the Black Bog Ant Formica picea on Cors Goch, Llanllwch SSSI in 2024 Arolwg o'r Morgrugyn Cors Du (Formica picea) yng Nghors Goch, Llanllwch SSSI, 2024 2025-03-11 NRW_DS161305 http://naturalresources.wales/ This dataset comprises the results of a survey undertaken in August 2024 to assess the status and distribution of the Black Bog Ant (Formica picea) at Cors Goch Llanllwch SSSI. The survey focused on locating and counting ant solaria (nest mounds) to determine the current abundance and distribution of the species south of the railway line. The report provides an assessment of the population status of Black Bog Ant at the site and informs future conservation management and monitoring of this rare wetland species. This dataset comprises the results of a survey undertaken in August 2024 to assess the status and distribution of the Black Bog Ant (Formica picea) at Cors Goch Llanllwch SSSI. The survey focused on locating and counting ant solaria (nest mounds) to determine the current abundance and distribution of the species south of the railway line. The report provides an assessment of the population status of Black Bog Ant at the site and informs future conservation management and monitoring of this rare wetland species. 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 Jon Hudson Ecological Consultancy Jon Hudson Ecological Consultancy, 5 Croft Villas, Camrose, Haverfordwest, Pembrokeshire, SA62 6JF Jonhudson1@outlook.com Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Cors Goch Aculeate bees, wasps & ants black bog ant NRW Thesaurus 2026-08-27 geonetwork.thesaurus.local.theme.converted_nrw-keywords There are no access restrictions on this data. NRW may release, publish or disseminate it freely. noLimitations © 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 Wales (WLS) -4.2855 -4.2039 53.2913 53.3326 2024-08-20 2024-08-20 Hudson, J. 2024. Survey of the Black Bog Ant Formica picea on Cors Goch, Llanllwch SSSI in 2024. NRW Evidence Report No. 816. 19pp. Natural Resources Wales, Bangor. Documents NRW Evidence Report in PDF or MS Word Format Database Data stored in 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 To assess the number of solaria present, the site was walked by two surveyors on 20 August 2024. Surveyors worked from east to west and back again in transects running parallel to the old drainage ditches. They worked in parallel, covering transects approximately 4 m wide (2 m on either side of each surveyor), to maximise habitat coverage while avoiding double counting of solaria. Areas of mown, grazed, or naturally shorter vegetation were used as the principal transect routes. Areas of taller vegetation were also surveyed using zig-zag ("W") search patterns to ensure comprehensive site coverage. To assess the number of solaria present, the site was walked by two surveyors on 20 August 2024. Surveyors worked from east to west and back again in transects running parallel to the old drainage ditches. They worked in parallel, covering transects approximately 4 m wide (2 m on either side of each surveyor), to maximise habitat coverage while avoiding double counting of solaria. Areas of mown, grazed, or naturally shorter vegetation were used as the principal transect routes. Areas of taller vegetation were also surveyed using zig-zag ("W") search patterns to ensure comprehensive site coverage.