Survival Rate of Rehabilitated Guillemots

The results of a study on the post-release life expectancy and oiled and cleaned guillemots has caused concern for seabird rehabilitation. This lead to considerable concern that seabird rehabilitation programmes are of low conservation value and may even prolong the suffering of the rescued birds. The study aimed to: - Calculate the survival rates of oiled, cleaned and released guillemots, - Compare these with the natural survival rates of guillemots which have not been oil, cleaned and released, - Assess whether the survival of rehabilitated birds has increased in recent years as cleaning techniques have improved, - Critically examine the quality of the available data and make recommendations for future improvements.

Identification

Identifier
NRW_DS110343
Alternative Title
Metadata Language
English
Lineage

Most of the analysis within the study used only data from birds ringed with 'guillemot specials' made of stronger incoloy, which were introduced in the early 1980s. BTO ring recovery data was used to calculate the survival rates of oiled, cleaned and released guillemots and compare these with the natural survival rates of guillemots which have not been oiled, cleaned and released. An assessment was also made as to whether the survival of rehabilitated birds has increased as cleaning techniques have improved. The only data associated with this project is held within the report.
Dataset Reference Date (Publication)
1997-07-31

Temporal Extent

Begin date
1918-01-01
End date
1995-12-31
 
Topic category
  • Biota
Owner
  British Trust for Ornithology (BTO) -
The Nunnery, Thetford, Norfolk, IP24 2PU, England
http://www.bto.org/
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Originator
  British Trust for Ornithology (BTO) -
The Nunnery, Thetford, Norfolk, IP24 2PU, England
http://www.bto.org/
 

Extent

Extent

Geographic Extent
Great Britain (GBN)
N
W
E
S
Map representing the geographic extent of the dataset


 

Vertical Extent

Medin Extent Keyword

unknown
 
 

Distribution

Format Type and Description
  • Documents ( )

    Specification

    Report in PDF format

 

Quality

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

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

Most of the analysis within the study used only data from birds ringed with 'guillemot specials' made of stronger incoloy, which were introduced in the early 1980s. BTO ring recovery data was used to calculate the survival rates of oiled, cleaned and released guillemots and compare these with the natural survival rates of guillemots which have not been oiled, cleaned and released. An assessment was also made as to whether the survival of rehabilitated birds has increased as cleaning techniques have improved. The only data associated with this project is held within the report.
 

Keywords

Keywords

GEMET - INSPIRE themes, version 1.0
Type
Theme

Citation

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

Keywords

NRW Thesaurus
  • uria aalge
  • oil pollution
  • oil
  • marine and freshwater inventory
  • ringing
  • British Trust for Ornithology (BTO)
  • oiled birds
  • rehabilitation
  • Sea Empress
  • guillemots
Type
Theme

Citation

Date (Publication)
2026-08-27
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Keywords

SeaDataNet Parameter Discovery Vocabulary
Type
Theme

Citation

Date (Publication)
2024-06-19
Code
geonetwork.thesaurus.external.theme.rdf+xml
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Content Information

NRW Profile

Custom Elements

NRW Related Title

Survival Rate of Rehabilitated Guillemots
 

Constraints

Constraints

Limitations on Public Access and Use

Restriction type
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

This data is jointly owned by NRW and BTO. 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 and BTO 1997. There are no use restrictions on this data. 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 the copyright of NRW/ (e.g.) Forestry Commission 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

File Identifier
4f4c4942-4343-5764-6473-313130333433 XML
Metadata Language
English
Resource type
Dataset
Metadata Date
2026-09-28T13:53:45.197Z
Metadata Standard Name
NRW
Metadata Standard Version

1.0

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

Publishing Body

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