Multicolony tracking reveals the winter distribution of a pelagic seabird on an ocean basin scale

Frederiksen, Morten; Moe, Børge; Daunt, Francis ORCID: https://orcid.org/0000-0003-4638-3388; Phillips, Richard A.; Barrett, Robert T.; Bogdanova, Maria I. ORCID: https://orcid.org/0000-0003-3360-1059; Boulinier, Thierry; Chardine, John W.; Chastel, Olivier; Chivers, Lorraine S.; Christensen-Dalsgaard, Signe; Clément-Chastel, Céline; Colhoun, Kendrew; Freeman, Robin; Gaston, Anthony J.; González-Solís, Jacob; Goutte, Aurélie; Grémillet, David; Guilford, Tim; Jensen, Gitte H.; Krasnov, Yuri; Lorentsen, Svein-Håkon; Mallory, Mark L.; Newell, Mark; Olsen, Bergur; Shaw, Deryk; Steen, Harald; Strøm, Hallvard; Systad, Geir H.; Thórarinsson, Thorkell L.; Anker-Nilssen, Tycho. 2012 Multicolony tracking reveals the winter distribution of a pelagic seabird on an ocean basin scale. Diversity and Distributions, 18 (6). 530-542. https://doi.org/10.1111/j.1472-4642.2011.00864.x

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Abstract/Summary

Aim: An understanding of the non-breeding distribution and ecology of migratory species is necessary for successful conservation. Many seabirds spend the non-breeding season far from land, and information on their distribution during this time is very limited. The black-legged kittiwake, Rissa tridactyla, is a widespread and numerous seabird in the North Atlantic and Pacific, but breeding populations throughout the Atlantic range have declined recently. To help understand the reasons for the declines, we tracked adults from colonies throughout the Atlantic range over the non-breeding season using light-based geolocation. Location: North Atlantic. Methods: Geolocation data loggers were deployed on breeding kittiwakes from 19 colonies in 2008 and 2009 and retrieved in 2009 and 2010. Data from 236 loggers were processed and plotted using GIS. Size and composition of wintering populations were estimated using information on breeding population size. Results: Most tracked birds spent the winter in the West Atlantic, between Newfoundland and the Mid-Atlantic Ridge, including in offshore, deep-water areas. Some birds (mainly local breeders) wintered in the North Sea and west of the British Isles. There was a large overlap in winter distributions of birds from different colonies, and colonies closer to each other showed larger overlap. We estimated that 80% of the 4.5 million adult kittiwakes in the Atlantic wintered west of the Mid-Atlantic Ridge, with only birds from Ireland and western Britain staying mainly on the European side. Main conclusions: The high degree of mixing in winter of kittiwakes breeding in various parts of the Atlantic range implies that the overall population could be sensitive to potentially deteriorating environmental conditions in the West Atlantic, e.g. owing to lack of food or pollution. Our approach to estimating the size and composition of wintering populations should contribute to improved management of birds faced with such challenges.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1111/j.1472-4642.2011.00864.x
Programmes:	CEH Topics & Objectives 2009 - 2012 > Biodiversity BAS Programmes > Polar Science for Planet Earth (2009 - ) > Ecosystems
UKCEH and CEH Sections/Science Areas:	UKCEH Fellows Watt
ISSN:	1366-9516
Additional Keywords:	Black-legged kittiwake, geolocation, migration, non-breeding ecology, North Atlantic, Rissa tridactyla
NORA Subject Terms:	Zoology Ecology and Environment
Date made live:	21 May 2012 14:47 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/17972

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