Squirrel survey of Aberhirnant Forest and woodland surrounding Lake Vyrnwy (2001)

Presence or absence or red and grey squirrels in Aberhirnant Forest and the woodlands surrounding Lake Vyrnwy. This is a follow-up to the "Squirrel survey of Aberhirnant Forest and woodland surrounding Lake Vyrnwy 1999 - 2000". The purpose of this data capture is to inform work to remove grey squirrels in the area as well as gather further information about red squirrel populations. The survey locations were conifer plantations of Aberhirnant Forest and the catchment area of Lake Vyrnwy.

Identifier: NRW_DS102086

Alternative Title

Squirrel Data - CCW - HQ Terr - Aberhirnant, Report 589 CCW0003800000007
Arolwg ar wiwerod Aberhirnant a'r coetir o amgylch Llyn Efyrnwy (2001)

Metadata Language: English

Lineage: This is a follow up survey was commissioned by Countryside Council for Wales (CCW) in 2001 (the original survey was carried our between 1999 and 2000). An initial survey of 17 grids of hair tubes were set out in Aberhirnant Forest and 2 in the Lake Vyrnwy Plantation in 1999. Each grid consisted of 20 hair tubes in four rows each of 5 tubes. Each row was 100 m apart and the tubes were 100 m apart in the rows. Tubes were fixed to trees and baited. These were then checked every two weeks and hairs deposited in the tubes were checked by eye and verified under a microscope using the negative staining technique where necessary. A subsequent survey in 2001 used 2 grids with 30 traps. Additional tube hair traps were also set. A total of 120 records were taken, of which 53 were positive. Grid references are estimated from map.

Additional Information: Mammal Ecologist, Terrestrial Science Group, NRW

Dataset Reference Date (Publication): 2003-01-01

Temporal Extent

Begin date: 2001-07-25

End date: 2001-08-21

Topic category

Biota

Owner

Natural Resources Wales (NRW)

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

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

Originator

Cartmel

Cymarau Isaf, Blaenau Ffestiniog, Gwynedd, LL41 4BN

<!__ Nowebsite __!>

Extent

Geographic Extent: POWYS - POWYS

Geographic Extent: GWYNEDD - GWYNEDD

Map representing the geographic extent of the dataset

Format Type and Description

Database Database ()

Specification

[A] Comprises of paper map and tables published in a summary report. [B] Raw data to be held in Recorder: Squirrel Data - CCW - HQ Terr - Aberhirnant, Report 589 CCW0003800000007 [C] Map of grid and row/trap locations to be held in Mapinfo table.

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: This is a follow up survey was commissioned by Countryside Council for Wales (CCW) in 2001 (the original survey was carried our between 1999 and 2000). An initial survey of 17 grids of hair tubes were set out in Aberhirnant Forest and 2 in the Lake Vyrnwy Plantation in 1999. Each grid consisted of 20 hair tubes in four rows each of 5 tubes. Each row was 100 m apart and the tubes were 100 m apart in the rows. Tubes were fixed to trees and baited. These were then checked every two weeks and hairs deposited in the tubes were checked by eye and verified under a microscope using the negative staining technique where necessary. A subsequent survey in 2001 used 2 grids with 30 traps. Additional tube hair traps were also set. A total of 120 records were taken, of which 53 were positive. Grid references are estimated from map.

Keywords

GEMET - INSPIRE themes, version 1.0

Species distribution

Type: Theme

Citation

Date (Publication): 2008-06-01

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

Keywords

NRW Thesaurus

red squirrels
sciurus vulgaris
grey squirrels
sciurus carolinensis

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

NRW Related Title: Aberhirnant red squirrel survey : second phase, summer 2001

NRW Related Title: Squirrel Collation for Wales

Constraints

Limitations on Public Access and Use

Restriction type: Other restrictions

Access Constraints Directive

Limitations: no limitations

Access Constraints Text

Other constraints: There are no access restrictions to this data. NRW may release, publish or disseminate it freely.

Use Constraints

Use constraints type: Other restrictions

Other constraints: © CNC/NRW 2001 There are no use restrictions on this data. Recipients may re-use, reproduce, disseminate this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and NRW's copyright, and do not use it in a misleading context. It is the recipient's responsibility to ensure the data is fit for the intended purpose, that dissemination or publishing does not result in duplication, and that it is fairly interpreted. Advice on interpretation should be sought where required. To avoid re-using old data, users should periodically obtain the latest version from the original source.

Metadata

File Identifier: 4f4c4942-4343-5764-6473-313032303836 XML

Metadata Language: English

Parent Identifier: Squirrel Collation for Wales
NRW_DS102082

Resource type: Dataset

Metadata Date: 2024-05-31T09:41:30.02Z

Metadata Standard Name: NRW

Metadata Standard Version: 1.0

pointOfContact

Master Reference Data Team

Natural Resources Wales, Maes y Fynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW

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

Publishing Body

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Full access to the portal and metadata.

Squirrel survey of Aberhirnant Forest and woodland surrounding Lake Vyrnwy (2001)

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