Aarhus University Seal / Aarhus Universitets segl

Morten Frederiksen

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

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

  • Morten Frederiksen
  • B. Moe, Fram Centre
  • ,
  • F. Daunt, Centre for Ecology and Hydrology
  • ,
  • R.A. Phillips, Natural Environment Research Council
  • ,
  • R.T. Barrett, Tromsø University Museum
  • ,
  • M.I. Bogdanova, Centre for Ecology and Hydrology
  • ,
  • T. Boulinier, CNRS
  • ,
  • J.W. Chardine, Environment Canada
  • ,
  • O. Chastel, CNRS
  • ,
  • L.S. Chivers, Queen's University Belfast, MBC
  • ,
  • S. Christensen-Dalsgaard, Norwegian Institute for Nature Research
  • ,
  • C. Clément-Chastel, CNRS
  • ,
  • K. Colhoun, Belvoir Park Forest
  • ,
  • Robin Freeman, Denmark
  • A.J. Gaston, Carleton University
  • ,
  • J. González-Solís, Universitat de Barcelona
  • ,
  • A. Goutte, CNRS
  • ,
  • D. Grémillet, CNRS
  • ,
  • T. Guilford, University of Oxford
  • ,
  • Gitte Høj Jensen
  • ,
  • Y. Krasnov, Murmansk Marine Biological Institute KSC RAS
  • ,
  • S.-H. Lorentsen, Norwegian Institute for Nature Research
  • ,
  • M.L. Mallory, Canadian Wildlife Service
  • ,
  • M. Newell, Centre for Ecology and Hydrology
  • ,
  • B. Olsen, Faroe Marine Research Institute
  • ,
  • D. Shaw, Fair Isle Bird Observatory
  • ,
  • H. Steen, Fram Centre
  • ,
  • H. Strøm, Fram Centre
  • ,
  • G.H. Systad, Fram Centre
  • ,
  • T.L. Thórarinsson, Northeast Iceland Nature Center
  • ,
  • T. Anker-Nilssen, Norwegian Institute for Nature Research
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.
Original languageEnglish
JournalDiversity and Distributions
Volume18
Issue6
Pages (from-to)530-542
Number of pages13
ISSN1366-9516
DOIs
Publication statusPublished - 1 Jun 2012

See relations at Aarhus University Citationformats

ID: 45806224