4f4c4942-4343-5764-6473-313631333036 English Natural Resources Wales Maes y Ffynnon Bangor LL57 2DW Wales opendata@cyfoethnaturiolcymru.gov.uk 2025-03-11T11:31:43.555Z NRW 1.0 wel British National Grid (EPSG:27700) Surveys for additional populations of Scaly Cricket Pseudomogoplistes vicentae in Pembrokeshire and west Carmarthenshire in 2023 and 2024 Surveys for additional populations of Scaly Cricket Pseudomogoplistes vicentae in Pembrokeshire and west Carmarthenshire in 2023 and 2024 2025-03-11 NRW_DS161306 The current two-year survey visited a further eleven sites in Pembrokeshire and one in west Carmarthenshire. A single Scaly Cricket nymph was found in a pitfall trap at Monkstone Beach near Tenby in October 2023. An additional seven nymphs were recorded at the same site in October 2024, again in pitfall traps, suggesting that a resident population is present. This represents the 4th known locality in Wales, all of which are in Pembrokeshire, and the 6th in the UK. The current survey suggests that there are few suitable beaches for Scaly Cricket and that, even where suitable habitat is present, it is not always utilised by the species which seems to have a very restricted distribution. The survey further highlights the importance of the Marloes Sands population as it is clearly the largest in Wales. Populations at Marloes Sands, West Dale Bay and Monkstone Beach remain very vulnerable to habitat loss due to coastal erosion and sea-level rise. The current two-year survey visited a further eleven sites in Pembrokeshire and one in west Carmarthenshire. A single Scaly Cricket nymph was found in a pitfall trap at Monkstone Beach near Tenby in October 2023. An additional seven nymphs were recorded at the same site in October 2024, again in pitfall traps, suggesting that a resident population is present. This represents the 4th known locality in Wales, all of which are in Pembrokeshire, and the 6th in the UK. The current survey suggests that there are few suitable beaches for Scaly Cricket and that, even where suitable habitat is present, it is not always utilised by the species which seems to have a very restricted distribution. The survey further highlights the importance of the Marloes Sands population as it is clearly the largest in Wales. Populations at Marloes Sands, West Dale Bay and Monkstone Beach remain very vulnerable to habitat loss due to coastal erosion and sea-level rise. 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 https://www.jonhudsonecology.com/ Species distribution GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme Coppet Hall Point Manorbier scaly cricket Marros Newgale Castlemartin Saundersfoot 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. 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) -5.618 -4.0881 51.6186 52.1089 2023-07-01 2024-09-30 Hudson, J. 2024. Surveys for additional populations of Scaly Cricket Pseudomogoplistes vicentae in Pembrokeshire and west Carmarthenshire in 2023 and 2024. NRW Evidence Report No. 817. 38pp. Natural Resources Wales, Bangor Documents NRW Evidence Report in PDF or MS Word format Database Data Stored on 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 Hand Searching Within areas of suitable habitat, large pebbles, cobbles and stones were swiftly removed or lifted by one edge. Large pebbles beneath the lifted stone were then removed to a depth of around 10-20cm. Where the upper layers of the beach deposits have become dry these were removed and the above search methods were applied to the newly exposed, damper layers. Searches were focussed on areas of suitable habitat where strandline deposits were present. Pitfall Trapping A plastic pint beer glass was sunk into the beach deposits. The bait used was dried cat biscuits and pieces of cooked sausage. Fine shingle was placed around the traps to ensure invertebrates were able to access the traps and a large flat stone was placed on top of the trap. Trap locations were marked by pebble cairns and photographed to aid relocation. Hand Searching Within areas of suitable habitat, large pebbles, cobbles and stones were swiftly removed or lifted by one edge. Large pebbles beneath the lifted stone were then removed to a depth of around 10-20cm. Where the upper layers of the beach deposits have become dry these were removed and the above search methods were applied to the newly exposed, damper layers. Searches were focussed on areas of suitable habitat where strandline deposits were present. Pitfall Trapping A plastic pint beer glass was sunk into the beach deposits. The bait used was dried cat biscuits and pieces of cooked sausage. Fine shingle was placed around the traps to ensure invertebrates were able to access the traps and a large flat stone was placed on top of the trap. Trap locations were marked by pebble cairns and photographed to aid relocation.