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.

Identifier: NRW_DS46159

Alternative Title

Monitro ystlumod pedol gyda pheiriannau cyfrif ystlumod

Metadata Language: English

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.

Dataset Reference Date (Publication): 2014-01-31

Temporal Extent

Begin date: 1993-01-01

End date: 2014-01-31

Topic category

Biota

Owner

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Originator

Countryside Council for Wales (CCW)

Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW

http://naturalresourceswales.gov.uk/splash?orig=/

Extent

Geographic Extent: Wales (WLS)

Format Type and Description

Documents Documents ()

Specification

[A] Annual report in MS Word. [B] Raw data in MS Excel.

Data quality

Quality Scope: Dataset

Conformity: 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
Explanation
Degree: false

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

GEMET - INSPIRE themes, version 1.0

Type: Theme

Citation

Date (Publication): 2008-06-01

Code: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Keywords

NRW Thesaurus

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

Code: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Code: British National Grid (EPSG::27700)

Content Information

NRW Profile

Custom Elements

Constraints

Limitations on Public Access and Use

Restriction type: Other restrictions

Access Constraints Directive

Limitations: no limitations

Access Constraints Text

Other constraints: 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: © 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

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

pointOfContact

Natural Resources Wales (NRW)

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Publishing Body

Access the portal

Full access to the portal and metadata.

Monitoring of Horseshoe Bats with Automatic Bat Counters

Identification

Temporal Extent

Extent

Extent

Distribution

Quality

Data quality

Keywords

Keywords

Citation

Keywords

Citation

Spatial Reference System

Content

Content Information

NRW Profile

Custom Elements

Constraints

Constraints

Limitations on Public Access and Use

Access Constraints Directive

Access Constraints Text

Use Constraints

Metadata

Metadata

Publishing Body