The status and distribution of the ground beetle Harpalus melancholicus at Stackpole Warren in 2017

  • English
  • wel
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Stackpole Warren supports the only known British population of the Endangered ground beetle Harpalus melancholicus, the Stackpole Seed-eater. This data collection was commissioned to attempt to determine its current status and distribution on Stackpole Warren. This survey has done much to characterise the habitat occupied by H. melancholicus, with adults recorded only from two small patches of habitat where the toe of a vegetated sand-dune encroaches over outcropping limestone. The survey has also confirmed that H. melancholicus is a seed-eater, with Lesser Hawkbit Leontodon saxatilis and probably thyme Thymus sp. as food items. It is hypothesised that H. melancholicus is ecologically highly specialised, with a patchy occurrence at Stackpole Warren, but that additional occupied habitat patches remain to be discovered. Alternative hypotheses are also presented.

Identification

Dynodydd
Identifier
NRW_DS121121
Teitl Amgen
Alternative Title
  • Statws a dosbarthiad y chwilen ddaear Harpalus melancholicus yng Nghwningar Ystagbwll yn 2017
Laith Metadata
Metadata Language
English
Lineage

Surveys were by visual searches in daytime and at night. Diurnal and nocturnal ground-searching was carried out on 22nd to 23rd August 2017. Eight to ten individuals of H. melancholicus were observed, all at night. This is noteworthy for a species otherwise known at Stackpole Warren from only four individuals recorded between 1992 and 2015.
Additional Information

Telfer, M.G. 2018. The status and distribution of the ground beetle Harpalus melancholicus at Stackpole Warren in 2017. NRW Evidence Report No: 247, 26 pp, Natural Resources Wales, Bangor.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2018-01-01
Perchennog
Owner
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Telfer
10 Northall Road, Eaton Bray, Dunstable, Bedfordshire, LU6 2DQ
 

Extent

Extent

Hyd
Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Database ()

    Specification

    Database – records held in WID Recorder 6. Documents: pdf of the report in the DMS report archive.

 

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

Surveys were by visual searches in daytime and at night. Diurnal and nocturnal ground-searching was carried out on 22nd to 23rd August 2017. Eight to ten individuals of H. melancholicus were observed, all at night. This is noteworthy for a species otherwise known at Stackpole Warren from only four individuals recorded between 1992 and 2015.
 

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
  • ecological surveys
  • invertebrate surveys
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

The status and distribution of the ground beetle Harpalus melancholicus at Stackpole Warren in 2017
 

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 on 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 Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.
 

Attribution Statement

Other constraints
Open Government Licence (OGL)
 

Licence

Other constraints
Open Government Licence (OGL)
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313231313231 XML
Laith Metadata
Metadata Language
English
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2024-05-31T09:41:06.026Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW)
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

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