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Ib Krag Petersen

Ocean-wide Drivers of Migration Strategies and Their Influence on Population Breeding Performance in a Declining Seabird

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  • Annette L. Fayet, Univ Oxford, Dept Zool, Radcliffe Observ Quarter
  • ,
  • Robin Freeman, Zool Soc London, Inst Zool
  • ,
  • Tycho Anker-Nilssen, Norwegian Inst Nat Res
  • ,
  • Antony Diamond, Univ New Brunswick, Atlantic Lab Avian Res
  • ,
  • Kjell E. Erikstad, Norwegian Univ Sci & Technol, Dept Biol, Ctr Biodivers Dynam
  • ,
  • Dave Fifield, Environm & Climate Change Canada
  • ,
  • Michelle G. Fitzsimmons, Mem Univ Newfoundland, Memorial University Newfoundland, Queens Coll, Dept Archaeol
  • ,
  • Erpur S. Hansen, South Iceland Nat Res Ctr
  • ,
  • Mike P. Harris, Environm Canada, Ctr St Laurent, Div Rech Hydrol & Ecol Bassins Versants
  • ,
  • Mark Jessopp, Univ Coll Cork, Environm Res Inst, MaREI Ctr
  • ,
  • Amy-Lee Kouwenberg, Environm & Climate Change Canada
  • ,
  • Steve Kress, Natl Audubon Soc Seabird Restorat Program
  • ,
  • Stephen Mowat, Zool Soc London, Inst Zool
  • ,
  • Chris M. Perrins, Univ Oxford, Dept Zool, Radcliffe Observ Quarter
  • ,
  • Aevar Petersen
  • ,
  • Ib K. Petersen
  • Tone K. Reiertsen, Norwegian Inst Nat Res, Fram Ctr, Dept Arctic Ecol
  • ,
  • Gregory J. Robertson, Environm & Climate Change Canada
  • ,
  • Paula Shannon, Natl Audubon Soc Seabird Restorat Program
  • ,
  • Ingvar A. Sigurdsson, South Iceland Nat Res Ctr
  • ,
  • Akiko Shoji, Hokkaido Univ, Dept Fisheries Sci
  • ,
  • Sarah Wanless, Environm Canada, Ctr St Laurent, Div Rech Hydrol & Ecol Bassins Versants
  • ,
  • Tim Guilford, Univ Oxford, Dept Zool, Radcliffe Observ Quarter

Which factors shape animals' migration movements across large geographical scales, how different migratory strategies emerge between populations, and how these may affect population dynamics are central questions in the field of animal migration [1] that only large-scale studies of migration patterns across a species' range can answer [2]. To address these questions, we track the migration of 270 Atlantic puffins Fratercula arctica, a red-listed, declining seabird, across their entire breeding range. We investigate the role of demographic, geographical, and environmental variables in driving spatial and behavioral differences on an ocean-basin scale by measuring puffins' among-colony differences in migratory routes and day-to-day behavior (estimated with individual daily activity budgets and energy expenditure). We show that competition and local winter resource availability are important drivers of migratory movements, with birds from larger colonies or with poorer local winter conditions migrating further and visiting less-productive waters; this in turn led to differences in flight activity and energy expenditure. Other behavioral differences emerge with latitude, with foraging effort and energy expenditure increasing when birds winter further north in colder waters. Importantly, these ocean-wide migration patterns can ultimately be linked with breeding performance: colony productivity is negatively associated with wintering latitude, population size, and migration distance, which demonstrates the cost of competition and migration on future breeding and the link between non-breeding and breeding periods. Our results help us to understand the drivers of animal migration and have important implications for population dynamics and the conservation of migratory species.

OriginalsprogEngelsk
TidsskriftCurrent Biology
Vol/bind27
Nummer24
Sider (fra-til)3871–3878.e3
Antal sider11
ISSN0960-9822
DOI
StatusUdgivet - 18 dec. 2017

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