Individual migration strategy fidelity but no habitat specialization in two congeneric seabirds
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https://hdl.handle.net/10037/19750Date
2020-10-30Type
Journal articleTidsskriftartikkel
Peer reviewed
Author
Merkel, Benjamin; Descamps, Sebastien; Yoccoz, Nigel; Grémillet, David; Daunt, Francis; Erikstad, Kjell E; Ezhov, Aleksey V.; Harris, Mike P.; Gavrilo, Maria; Lorentsen, Svein Håkon; Reiertsen, Tone Kristin; Steen, Harald; Systad, Geir Helge Rødli; Þórarinsson, Þorkell Lindberg; Wanless, Sarah; Strøm, HallvardAbstract
Aim: In migratory species, individuals often use fixed and individual-specific migration
strategies, which we term individual migration strategy fidelity (IMSF). Our goal
was to test if guillemots have flexible or fixed individual migration strategies (i.e.
IMSF), if this behaviour is consistent across large parts of the genus’ range and if they
were philopatric to geographical sites or a habitat feature.
Location: North Atlantic.
Taxon: Uria spp.
Methods: We quantified consistent individual differences in inter-annual spatial
distribution and habitat occupied throughout the non-breeding period using a large
geolocator tracking dataset of 729 adult seabirds breeding at 13 colonies across
the Northeast Atlantic and repeatedly tracked up to 7 years over a 9-year period.
Additionally, we used a similarity index to calculate relative fidelity to either geographical
sites or habitats and linear mixed-effects models to assess persistence of
spatial site fidelity over multiple years.
Is part of
Merkel, B. (2019). Migration in seabirds: seasonal structure in space and environment across species, populations and individuals. (Doctoral thesis). https://hdl.handle.net/10037/15239Publisher
WileyCitation
Merkel B, Descamps S, Yoccoz NG, Grémillet D, Daunt F, Erikstad KE, Ezhov AV, Harris MP, Gavrilo M, Lorentsen S.-H., Reiertsen TK, Steen H, Systad GHR, Þórarinsson ÞL, Wanless S, Strøm H. Individual migration strategy fidelity but no habitat specialization in two congeneric seabirds. Journal of Biogeography. 2020Metadata
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