Site use and fidelity in the common guillemot Uria aalge.
Harris, M.P. 
ORCID: https://orcid.org/0000-0002-9559-5830; Wanless, S. ORCID: https://orcid.org/0000-0002-2788-4606; Barton, T.R..
1996
Site use and fidelity in the common guillemot Uria aalge.
Ibis, 138 (3).
399-404.
10.1111/j.1474-919X.1996.tb08057.x
Abstract/Summary
The site fidelity of 470 colour-ringed Common Guillemots Uria aalge with at least 1 year of breeding experience was followed on the Isle of May from 1982 to 1993. On average, 85.7% of birds recorded breeding at a site in any year were present at the same site in the following season. Of those which did not retain their site, 35% had moved to another site, 25% were nonbreeders and 40% were not seen. Site- fidelity of birds which returned to the colony the next year was 91%. There were no significant age or sex effects, but there were significant (and unexplained) year and area effects. Most birds which changed sites moved less than 2 m. Some birds which obtained a new site improved their nesting success, but many others became nonbreeders; it is speculated that the former chose to move site, whilst the latter had been evicted.
| Item Type: | Publication - Article |
|---|---|
| Digital Object Identifier (DOI): | 10.1111/j.1474-919X.1996.tb08057.x |
| Programmes: | CEH Programmes pre-2009 publications > Other |
| UKCEH and CEH Sections/Science Areas: | _ Pre-2000 sections |
| ISSN: | 0019-1019 |
| Additional Keywords: | Isle of May |
| NORA Subject Terms: | Zoology |
| Date made live: | 10 Dec 2010 17:15 +0 (UTC) |
| URI: | https://nora.nerc.ac.uk/id/eprint/12680 |
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