Seabird 2000


A full census of breading seabirds of Britain and Ireland for 1994 - 2003.

Dataset Location: OBIS Seabird 2000; GBIF Seabird 2000; JNCC species tables and maps; JNCC Colony Data and SCR

Direct Download: OBIS Seabird 2000

Site Location: British and Irish Coast

Site(s) Georeferenced: Yes

Timespan: 1994 - 2003; most sampling between 1999-2003

Sampling Frequency: irregular

Data Collection Summary / Methods: From NBN Metadata - "Stretches of coastline were divided into sites, which were usually based on previous count sections defined in the Seabird Colony Register Database. In coastal areas, surveyors were instructed to divide sites into easily defined count sections or subsites, around 1km in length and provide separate counts for each subsite. MainSite is the name of the site and the sitename is the name of the subsite."

This census effort improves upon previous complete sampling events of British and Irish seabirds Operation Seafarer in 1969-70 and The Seabird Colony Register in 1985-88. Seabird 2000 primarily differs from the past efforts by including inland seabird colonies and isolated island populations.

For detailed methodology - 'Seabird Populations of Britain and Ireland' (2004), Mitchell, P.I., Newton, S.F., Ratcliffe, N. and Dunn, T.E. Published by T & AD Poyser. <on-line executive summary> <book purchase> 


Data collected: The dataset comprises detailed counts of seabirds together with: habitat information, predator information, count units, weather conditions on the day of the count.  

OBIS data schema: species name, individual count, date, location, temperature, depth, salinity, nitrogen, oxygen, silicate.

Known Issues: A complete census of Northern gannets is independent and not included in Seabird 2000.

Data that partners to the SMP consider to be sensitive have been removed from the above datasets. These relate to Leach's storm-petrel, roseate tern, little tern, Mediterranean gull and, for Ireland, great skua. A policy on the treatment of sensitive data is being developed.


Best Practices: tips for separating the wheat from the chaff
Conditions for use: 'freely available' and 'open-access' as per OBIS:

MarBEF should also be cited as per their data use policy.

Citation/ Distributing Authors: Mitchell, P.I., S.F. Newton, N. Ratcliffe & T.E. Dunn. Seabird 2000. Joint Nature Conservation Committee, Peterborough, UK.

UK National Biodiversity Network: Joint Nature Conservation Committee - Seabird 2000.
Accessed via on 2015-02-27

Supplemental resources:

Joint Nature Conservation Committee Seabird 2000 -

Related Publications -

Cramp, S., Bourne, W. R. P. & Saunders, D. 1974. The Seabirds of Britain & Ireland. Collins, London.

Croxall, J.P., Evans, P.G.H., and Schreiber, R.W. (eds), 1984. Status and Conservation of the World's Seabirds. International Council for Bird Preservation Tecj. Publ. 2, Cambridge.

Croxall, J.P., and Rothery, P. 1991. Population regulation of seabirds: implications of their demography for conservation. In: Perrins, C.M., Lebreton, J.D. & Hirons, G.J.M. (eds.) Bird Population Studies. Oxford university press.
Lloyd, C.,  Tasker, M.L. & Partridge, K. 1991.  The Status of Seabirds in Britain and Ireland.  T. & A.D. Poyser, London.

Available via the EcoData Retriever: No


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