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

  • English
  • wel
  • All

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.

Identification

Dynodydd
Identifier
NRW_DS102086
Teitl Amgen
Alternative Title
  • Squirrel Data - CCW - HQ Terr - Aberhirnant, Report 589 CCW0003800000007
  • Arolwg ar wiwerod Aberhirnant a'r coetir o amgylch Llyn Efyrnwy (2001)
Laith Metadata
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
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2003-01-01
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Cartmel
Cymarau Isaf, Blaenau Ffestiniog, Gwynedd, LL41 4BN
<!__ Nowebsite __!>
 

Extent

Extent

Hyd
Geographic Extent
POWYS - POWYS
Hyd
Geographic Extent
GWYNEDD - GWYNEDD
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • 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.

 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
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

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • red squirrels
  • sciurus vulgaris
  • grey squirrels
  • sciurus carolinensis
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2023-12-31
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

NRW Related Title

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

Squirrel Collation for Wales
 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
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

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
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

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313032303836 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Squirrel Collation for Wales

NRW_DS102082
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T09:41:30.02Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
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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