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Cristin-resultat-ID:
1151832
Sist endret:
31. mai 2017, 08:41
NVI-rapporteringsår:
2014
Resultat
Vitenskapelig artikkel
2014
Differential breeding investment in bridled and non-bridled common guillemots (Uria aalge): morph of the partner matters
Ditte Lyngbo Kristensen
Kjell E Erikstad
Tone Reiertsen
og
Truls Moum
Tidsskrift
Tidsskrift
Behavioral Ecology and Sociobiology
ISSN 0340-5443
e-ISSN 1432-0762
NVI-nivå 2
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Om resultatet
Om resultatet
Vitenskapelig artikkel
Publiseringsår: 2014
Publisert online: 2014
Volum: 68
Hefte: 11
Sider: 1851 - 1858
Lenker
Lenker
original online (doi)
https://doi.org/10.1007/s00265-014-1794-8
Importkilder
Importkilder
Scopus-ID: 2-s2.0-84906452545
Scopus-ID: 2-s2.0-84920179074
Scopus-ID: 2-s2.0-85027933355
Beskrivelse
Beskrivelse
Engelsk
Tittel
Differential breeding investment in bridled and non-bridled common guillemots (Uria aalge): morph of the partner matters
Sammendrag
Polymorphism is the coexistence of two or more phenotypically distinct and genetically determinate forms in a population and implies a selective balance between the alternative morphs to permanently exist. Common guillemots Uria aalge occur in two genetically distinct morphs—a non-bridled and a bridled—the latter with white eye rings and a welldefined stripe behind the eyes. In this study, we investigated differences between the morphs with regard to reproductive parameters. We used a detailed family-based sample providing data on mother, father, and chick over three breeding seasons. The mating between morphs was random but pure non-bridled and pure bridled pairs produced smaller chicks at age 15 days than the two mixed pair compositions. Body mass of the adults showed much the same pattern; pure pairs having lower body mass than mixed pairs. There were no differences between the two morphs in reproductive parameters without considering the morph of the partner. This suggests that reproductive decisions in some way not only depend on the morph but also on the tactic of the partner. Different reproductive strategies between morph family groups as found in this study may contribute to the understanding of the existence of a balanced polymorphism in common guillemots. The overall breeding conditions during the years of this study were good. However, over time in a variable environment, we suggest that tactics of different family groups may have different success stabilizing the frequency of non-bridled and bridled birds over time. Uria aalge . Common guillemot . Polymorphism . Reproduction . Chick size . Body mass
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Bidragsytere
Bidragsytere
Ditte Lyngbo Kristensen
Forfatter
ved NINA Tromsø ved Norsk institutt for naturforskning
Kjell E Erikstad
Forfatter
ved Institutt for biologi ved Norges teknisk-naturvitenskapelige universitet
Forfatter
ved NINA Tromsø ved Norsk institutt for naturforskning
Tone Kristin Reiertsen
Bidragsyterens navn vises på dette resultatet som Tone Reiertsen
Forfatter
ved NINA Tromsø ved Norsk institutt for naturforskning
Forfatter
ved Seksjon for naturvitenskap ved UiT Norges arktiske universitet
Truls Borg Moum
Bidragsyterens navn vises på dette resultatet som Truls Moum
Forfatter
ved Fakultet for biovitenskap og akvakultur ved Nord universitet
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