Harvest Mice (Micromys minutus) in Wales - Where Might They Be?
The Harvest mouse (Micromys minutus), Britain’s smallest rodent, is sparsely distributed in Wales. The harvest mouse is a UK Biodiversity Action Plan priority species and is also on the list of Species of Principal Importance in Wales (Section 42, Natural Environment and Rural Communities Act 2006). Thus the species is afforded a high conservation status, yet very little is known about its true distribution across the UK and especially Wales. This dataset is a collation of records obtained from a report written to question 'Harvest mice in Wales - where might they be?'. The work carried out and demonstrated in the associated report (see related titles) was motivated by the lack of data for the harvest mouse in Wales, in an attempt to try and understand whether the species was as sparsely spread as the data would suggest. The results from analysis of the data would act to target harvest mouse survey to areas most likely to discover new populations and confirm existing ones. This dataset is made up of harvest mouse data obtained from the Welsh Local Records Centres, comprising 139 records dating back to 1895, with fewer than 30 records since 2000. Records are scattered across lowland areas in north, west and south Wales, forming obvious clusters in areas such as North Pembrokeshire, Bridgend and Eastern Glamorgan. The purpose of this data capture was to try gain an understanding of the distribution of harvest mouse around Wales. Various data were analysed alongside the harvest mouse records to highlight areas where potential harvest mouse surveys could be targeted. Maps were produced, to highlight sites with the highest habitat ranking around the most recent harvest mouse records.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS115304
- Alternative Title
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- Safleoedd craidd terfynol llygoden yr yd yng Nghymru a safleoedd ffocws terfynol llygoden yr yd yng Nghymru
- Metadata Language
- English
- Lineage
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Data analysis involved the selection of a range of habitats suitable for harvest mouse from Phase 1 Habitat Survey for Wales and National Vegetation Classification (NVC) data. These data were selected within a 10 kilometre radius of the most recent (post 1980) harvest mouse records. An altitudinal threshold was set to remove all harvest mouse suitable habitat above 300 metres. The resultant habitat data were associated with grassland connectivity network data, to create a series of sites which summarised the percentage area of suitable harvest mouse habitat for each site. Analysis was carried out across Wales and identified 479 core grassland connectivity sites and a further 1208 focal grassland connectivity sites, with at least some suitable harvest mouse habitat. Each site was assigned a ranking based on the amount of combined Phase 1 and NVC harvest mouse suitable habitat.
- Dataset Reference Date (Publication)
- 2013-03-31
Temporal Extent
- Begin date
- 1895-01-01
- End date
- 2013-01-31
- Topic category
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- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
- Format Type and Description
-
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Geographic Information System
()
- Specification
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[A] MapInfo GIS layers
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Geographic Information System
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
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Data analysis involved the selection of a range of habitats suitable for harvest mouse from Phase 1 Habitat Survey for Wales and National Vegetation Classification (NVC) data. These data were selected within a 10 kilometre radius of the most recent (post 1980) harvest mouse records. An altitudinal threshold was set to remove all harvest mouse suitable habitat above 300 metres. The resultant habitat data were associated with grassland connectivity network data, to create a series of sites which summarised the percentage area of suitable harvest mouse habitat for each site. Analysis was carried out across Wales and identified 479 core grassland connectivity sites and a further 1208 focal grassland connectivity sites, with at least some suitable harvest mouse habitat. Each site was assigned a ranking based on the amount of combined Phase 1 and NVC harvest mouse suitable habitat.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
-
Harvest mice in Wales : where might they be?
Constraints
Constraints
Limitations on Public Access and Use
- Restriction type
- Other restrictions
Access Constraints Directive
- Limitations
- no limitations
Access Constraints Text
- Other constraints
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The following data is considered OS derived data and is therefore jointly owned by NRW and the Ordnance Survey. NRW may release, publish or disseminate this data freely; providing recipients are made aware of use restrictions (See general use restrictions).
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW and © Crown copyright 2013. All rights reserved. Natural Resources Wales, AC0000849444 Third parties seeking to re-use this data require a Licence issued by NRW. It allows re-use, reproduction and dissemination in any format or medium but only for non-commercial purposes, according to the terms and conditions of the Licence. Those seeking commercial re-use require a commercial licence available from the OS.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313135333034 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:38:58.574Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
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1.0