Monitoring of Horseshoe Bats with Automatic Bat Counters
Automated bat counters have been deployed at various important roost sites for Greater and Lesser Horseshoe Bats (Rhinolophus ferrumequinum and Rhinolophus hipposideros). These collect roost entrance and exit numbers for the bats as well as some limited environmental data. The purpose of this data capture was to obtain reliable population data, in order to relate the changes in bat population and behaviour to changes in the climate and environment in an attempt to understand the factors that limit the geographical ranges of the 2 species. In Wales, Greater Horseshoe Bats breed at the northern limit of their distribution and Lesser Horseshoe Bats breed up to the north coast of Wales where they are fairly common but they are not found at this latitude in England or the mainland of Europe. The sample roosts are within Special Areas of Conservation. The data gives valuable information on the seasonal activity of these bats which can be directly related to management within and around these key roost sites.
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS46159
- Alternative Title
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- Monitro ystlumod pedol gyda pheiriannau cyfrif ystlumod
- Metadata Language
- English
- Lineage
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The flight of all bats in and out of a roost is recorded continuously on a computer (together with some environmental data in the case of some loggers). The bats are detected by infrared beam arrays, mounted in the roost entrance, together with laptops installed nearby. A bat flying through a roost entrance is detected when a beam is interrupted. There are two parallel arrays so direction can be recorder along with time/date. Raw data is manually processed using a script every few months to produce counts and graphs.
- Dataset Reference Date (Publication)
- 2014-01-31
Extent
Extent
- Geographic Extent
- Wales (WLS)
))
Distribution
- Format Type and Description
-
-
Documents
()
- Specification
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[A] Annual report in MS Word. [B] Raw data in MS Excel.
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Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
The flight of all bats in and out of a roost is recorded continuously on a computer (together with some environmental data in the case of some loggers). The bats are detected by infrared beam arrays, mounted in the roost entrance, together with laptops installed nearby. A bat flying through a roost entrance is detected when a beam is interrupted. There are two parallel arrays so direction can be recorder along with time/date. Raw data is manually processed using a script every few months to produce counts and graphs.
Keywords
Keywords
Keywords
- NRW Thesaurus
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- bat roost
- horseshoe bats
- greater horseshoe bats
- lesser horseshoe bats
- bats (see also specific species)
- baseline monitoring
- bat monitoring (bat surveys)
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
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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Part of this dataset is sensitive and restricted as it contains data exempt from general release under EIR. Sensitive data must be kept confidential; general release is not permitted due to risk of harm to the environment or third parties.
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW Data may be re-used under provision and in line with the terms of a NRW licence and NRWs guidance on Ecological data exempt from general release.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-3436313539 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2024-05-31T09:14:18.582Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0