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The numbers of inshore waterbirds using Scapa Flow, Orkney, during the winter season; an assessment of the area's potential for qualification as a marine SPA 2009

Marine JNCC Publications Seabird Surveys 0963-8091 Birds Birds Directive Birds of particular localities Evidence JNCC report series Marine Marine protected area Monitoring Seabirds Surveillance and Monitoring 407

Abstract

This report describes data from five aerial surveys and nine land/boat-based surveys in the area of Scapa Flow, Orkney, carried out over a total of seven winter seasons.

Aerial surveys (2002/03 to 2005/06) were conducted using line transect sampling techniques; for these, the data were analysed, where possible, using distance sampling in order to estimate the total numbers of birds using the area surveyed. In addition, land-/boat-based surveys were carried out during winter periods in 1998/99, 2000/01 and 2006/07.

The first part of this report describes analyses of these data to determine the numbers of birds present for each species. The second part of this report assesses those numbers against the appropriate guideline thresholds, to determine whether the area, or a part of it meets the site selection requirements under Stage 1 of the UK Selection Guidelines.

Resource type Publication

Topic category Environment

Reference date 2009·09·01

Citation
Dawson, N., Sohle, I., Wilson, L.J., Dean, B.J., Webb, A. & Reid, J.B. 2009. The numbers of inshore waterbirds using Scapa Flow, Orkney, during the winter season; an assessment of the area's potential for qualification as a marine SPA. JNCC Report No. 407, JNCC, Peterborough, ISSN 0963-8091.

Lineage
This report describes data from aerial surveys and land- and boat-based surveys in the area of Scapa Flow, Orkney, carried out over a total of seven winter seasons.

Responsible organisation
Communications, JNCC publisher

Limitations on public access No limitations

Use constraints Available under the Open Government Licence 3.0

Metadata date 2020·12·08

Metadata point of contact
Communications, JNCC

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