The post-fledging survival of young Guillemots Uria aalge in relation to hatching date and growth

Harris, M. P. ORCID: https://orcid.org/0000-0002-9559-5830; Halley, D. J.; Wanless, S. ORCID: https://orcid.org/0000-0002-2788-4606. 1992 The post-fledging survival of young Guillemots Uria aalge in relation to hatching date and growth. Ibis, 134 (4). 335-339. 10.1111/j.1474-919X.1992.tb08012.x

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Abstract/Summary

The post-fledging survival of a total of 1277 young Guillemots Uria aalge ringed in 6 years was assessed using sightings of 267 individuals back at the natal colony and recoveries of 46 ringed birds. In two years there was a significant decline in survival prospects with estimated hatching date, the first time such a trend has been demonstrated in the Alcidae. In these years pairs breeding early had a 2–3 times greater chance of having a young survive to return to the colony than pairs breeding three weeks later. Hatching date had no effect on survival prospects in the other four seasons and in none of the years did chick body condition have a demonstrable effect on post-fledging survival.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1111/j.1474-919X.1992.tb08012.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, Guillemots, Uria aalge
NORA Subject Terms:	Zoology
Date made live:	10 Oct 2008 10:57 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/4515

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