Arolwg ar wiwerod Aberhirnant a'r coetir o amgylch Llyn Efyrnwy (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.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS102086
- Teitl Amgen
-
- Squirrel Data - CCW - HQ Terr - Aberhirnant, Report 589 CCW0003800000007
- Laith Metadata
- English
- Datganiad
-
This 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.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2003-01-01
Ystod amser
- Dyddiad cychwyn
- 2001-07-25
- Dyddiad gorffen
- 2001-08-21
- Categori pwnc
-
- Biota
Rhychwant
Rhychwant
- Hyd
- POWYS - POWYS
- Hyd
- GWYNEDD - GWYNEDD
))
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Database
(
Unknown
)
- Math
-
Raw data held in Recorder: Squirrel Data - CCW - HQ Terr - Aberhirnant, Report 589 CCW0003800000007
-
Documents
(
Unknown
)
- Math
-
Paper map and tables published in a summary report.
-
Geographic Information System
(
Unknown
)
- Math
-
Map of grid and row/trap locations to be held in Mapinfo table.
-
Database
(
Unknown
)
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- 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
- Eglurhad
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
This 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.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- sciurus carolinensis
- red squirrels
- grey squirrels
- sciurus vulgaris
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2026-11-05
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Aberhirnant red squirrel survey : second phase, summer 2001
- Teitlau cysylltiedig CNC
-
Squirrel Collation for Wales
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
There are no access restrictions to this data. NRW may release, publish or disseminate it freely.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© 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.
Datganiad Priodoli
- Cyfyngiadau eraill
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved.
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313032303836 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Squirrel Collation for Wales
NRW_DS102082
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-11-11T12:05:15.286Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0