Seabird Population Trends and Causes of Change: 1986-2012
Here we present the latest analysed trends in abundance,
productivity, demographic parameters and diet of breeding
seabirds, from the Seabird Monitoring Programme, along
with interpretive text on the likely causes of change
based on the most recent research.
It replaces and builds upon the now discontinued
publication Seabird numbers and breeding success in Britain and
Trend information is presented at the UK level and
separately for Scotland, Wales, England, Northern Ireland, Republic
of Ireland, all-Ireland, Channel Islands and Isle of Man.
Interpretation of trends and reasons for change are given largely
at the UK level, unless there is country-specific evidence.
A download of data points
presented in the graphs of abundance and productivity under species
accounts is available.
The table below contains links to the species accounts and gives
at-a-glance UK population trends (as percentage change in breeding
numbers) from complete censuses undertaken in 1969-70
Seafarer); 1985-88 (Seabird Colony Register); and 1998-2002
2000). Change from 2000-2012 (i.e. over the period since the
last national census) is estimated from trends derived from the SMP
sample of colonies; this analysis is only available for
species with sufficient data to accurately
View the methods
of analysis of breeding abundance and productivity data
presented in the species accounts.
This report should be cited as: JNCC (2013) Seabird Population
Trends and Causes of Change: 1986-2012 Report
(http://www.jncc.defra.gov.uk/page-3201). Joint Nature Conservation
Committee. Updated July 2013. Accessed [INSERT DATE OF
*Not included in Operation Seafarer, Seabird 2000 census or
Seabird Colony Register.
**change between censuses in 1984-5 and 2004-5.
*** change between censuses in 1982-91 and 1998-2002