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dc.contributor.authorChristensen-Dalsgaard, Signe
dc.contributor.authorMay, Roelof Frans
dc.contributor.authorBarrett, Robert
dc.contributor.authorLangset, Magdalene
dc.contributor.authorSandercock, Brett
dc.contributor.authorLorentsen, Svein Håkon
dc.identifier.citationMarine Ecology Progress Series. 2018, 604 237-249.nb_NO
dc.description.abstractTo identify priorities for management of seabirds during the breeding season, it is important to understand the ecological mechanisms driving chick growth and survival. In this study, we examined the effects of diet and prevailing weather on the growth and survival of chicks of black-legged kittiwakes Rissa tridactyla over a 10 yr period at Anda, a seabird colony in Northern Norway. We show that across all years, there was a significant effect of diet composition delivered to chicks on their growth and survival. A higher proportion of sandeel Ammodytes spp. in the chick diet was associated with an increase in daily growth rates, a pattern that was especially pronounced for the youngest chick in 2-chick broods. A high proportion of mesopelagic fish in the chick diet was associated with a decrease in survival, again, especially for the youngest chick in 2-chick broods. Periods of strong southerly winds also led to reduced survival, probably linked to nests being washed down from the colony. Growth rates of kittiwake chicks were negatively affected by wind speed, likely due to adults having to work more in the exposed habitats in strong winds, causing a reduction in the amount of food supplied to the chicks. Our results emphasise the importance of conservation of specific marine habitats shown to be important foraging areas in ensuring the reproductive success of seabirds. This might prove increasingly important if future climate regimes make ecological conditions more challenging for seabirds. Foraging effort · Mesopelagic fish · Nestling development · Prey availability · Rissa tridactyla · Sandeel · Wind conditionsnb_NO
dc.publisherInter Researchnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titlePrevailing weather conditions and dietcomposition affect chick growth and survival in the black-legged kittiwakenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalMarine Ecology Progress Seriesnb_NO
dc.relation.projectMiljødirektoratet: CEDRENnb_NO
dc.relation.projectMiljødirektoratet: SEAPOPnb_NO
dc.relation.projectNorges forskningsråd: 192141nb_NO
dc.relation.projectAndre: Norwegian Oil and Gas Associationnb_NO
dc.description.localcode© The authors 2018. Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are un - restricted. Authors and original publication must be credited.nb_NO
cristin.unitnameNorges teknisk-naturvitenskapelige universitet

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