Vegetation Survey of Maritime Cliff and Slopes of the Llyn Peninsula
Maritime cliff and slopes is a priority habitat within the UK Biodiversity Action Plan. Selected maritime sites on the Llyn Peninsula were surveyed, mapped and evaluated in September/October 2000 and the range of National Vegetation Classification (NVC) vegetation types present characterized. A number of sections of the UK coastline have been nominated as 'Vegetated Sea Cliffs of the Atlantic and Baltic Coasts' candidate Special Areas of Conservation under the EC Habitats Directive. This survey was undertaken as part of the former Countryside Council for Wales (CCWs) commitment to undertake research and survey in order to increase knowledge of the extent and quality of this resource. Selected maritime sites on the Llyn Peninsula: - Porth Neigwl (Hell's Mouth) - Porth Dinllaen (Borth Wen to Penrhyn Nefyn) - Porth Nefyn (Penrhyn Nefyn to Penrhyn Bodeilias) - Porth Pistyll (Penrhyn Bodeilias to the lower slopes of Carreg y Llam)
- Identification
- Extent
- Distribution
- Quality
- Keywords
- Spatial Reference System
- Content
- Constraints
- Maintenance
- Metadata
Identification
- Identifier
- NRW_DS110036
- Alternative Title
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- Arolwg o lystyfiant clogwyn a llethrau arforol Penrhyn Llyn
- Metadata Language
- English
- Lineage
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Survey carried out during periods of low high tides, to allow the maximum access to the base of the cliffs. The basic recording unit was a 2 m x 2 m quadrat. For each quadrat a full species list, mean height of the vegetation, aspect, and slope were recorded. Where the slope of the cliff was very unstable, or too steep to allow access, quadrat records were made using binoculars. Soil information, grazing records and additional factors relating to disturbance were also recorded. Mapping in the field was carried out on 1:2500 computer-generated maps.
- Dataset Reference Date (Publication)
- 2000-11-30
Temporal Extent
- Begin date
- 2000-09-06
- End date
- 2000-10-07
- Topic category
-
- Environment
- Biota
Extent
Extent
- Geographic Extent
- Wales (WLS)
- Geographic Extent
- GWYNEDD - GWYNEDD
))
Vertical Extent
- Medin Extent Keyword
- benthic boundary layer
Distribution
- Format Type and Description
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-
Documents
()
- Specification
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[A] Word- report. [B] MapInfo products- Aggregated_Areas.TAB, Quadrats.TAB and Polygons.TAB for each site surveyed. [C] Excel- Tabulated quadrat data.
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Documents
()
Quality
Data quality
- Quality Scope
- Dataset
- Lineage
-
Survey carried out during periods of low high tides, to allow the maximum access to the base of the cliffs. The basic recording unit was a 2 m x 2 m quadrat. For each quadrat a full species list, mean height of the vegetation, aspect, and slope were recorded. Where the slope of the cliff was very unstable, or too steep to allow access, quadrat records were made using binoculars. Soil information, grazing records and additional factors relating to disturbance were also recorded. Mapping in the field was carried out on 1:2500 computer-generated maps.
Keywords
Keywords
- Type
- Theme
Citation
- Date (Publication)
- 2008-06-01
Keywords
- NRW Thesaurus
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- National Vegetation Classification (NVC)
- vegetation (see also specific types eg.coastal or heathland vegetation and vegetation surveys)
- cliff habitats
- cliffs
- Porth Neigwl
- Porth Dinllaen
- Porth Nefyn
- Porth Pistyll
- maritime cliffs
- marine and freshwater inventory
- Type
- Theme
Citation
- Date (Publication)
- 2023-12-31
Keywords
- SeaDataNet Parameter Discovery Vocabulary
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- Habitat characterisation
- Type
- Theme
Citation
- Date (Revision)
- 2021-01-06
Spatial Reference System
Content
Content Information
NRW Profile
Custom Elements
- NRW Related Title
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Vegetation survey of maritime cliff and slopes of the Llyn Peninsula 2000
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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The following data is considered OS derived data and is therefore jointly owned by NRW and the Ordnance Survey. NRW may release, publish or disseminate this data freely; providing recipients are made aware of use restrictions (See general use restrictions).
Use Constraints
- Use constraints type
- Other restrictions
- Other constraints
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© CNC/NRW and © Crown copyright [2000]. All rights reserved. Natural Resources Wales, AC0000849444. Third parties seeking to re-use this data require a Licence issued by NRW. It allows re-use, reproduction and dissemination in any format or medium but only for non-commercial purposes, according to the terms and conditions of the Licence. Those seeking commercial re-use require a commercial licence available from the OS.
Metadata
Metadata
- File Identifier
- 4f4c4942-4343-5764-6473-313130303336 XML
- Metadata Language
- English
- Resource type
- Dataset
- Metadata Date
- 2024-12-09T12:40:11.711Z
- Metadata Standard Name
- NRW
- Metadata Standard Version
-
1.0