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Review of Seabird Demographic Rates and Density Dependence 2015


This report presents individual species accounts for a selection of British seabirds, sea ducks, divers and grebes. Each account gathers the most up-to-date published estimates on the following demographic parameters: age-specific survival, age-specific productivity, age of recruitment, incidence of missed breeding, and natal and adult breeding dispersal. Particular attention has been given to regional variation in demographic rates, indicating the extent to which estimates may be applied to other less-well studied colonies. Where possible, the intrinsic and extrinsic factors that influence demographic rates are also detailed.

Please note, this report was replaced in February 2021 following some minor corrections:

  • In Section 5.3.1 (Manx shearwater (Puffinus puffinus), Table 10), the SD value for Rum has been corrected to 0.144. The National-average productivity SD value has been corrected to 0.102.
  • These figures have also been corrected in the Supporting Information file Procellariiformes_Manx shearwater.pdf.

Resource type Publication

Topic category Environment

Reference date 2015·02·01

Horswill, C. & Robinson, R.A. 2015. Review of Seabird Demographic Rates and Density Dependence. JNCC Report No. 552, JNCC, Peterborough, ISSN 0963-8091.

This report details demographic information on the 32 species of seabird and sea duck thought to be most vulnerable to off-shore renewable developments in the UK.

Responsible organisation
Communications, JNCC publisher

Limitations on public access No limitations

Use constraints Available under the Open Government Licence 3.0

Metadata date 2021·02·04

Metadata point of contact
Communications, JNCC

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