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dc.contributor.authorReiertsen, Tone Kristin
dc.contributor.authorErikstad, Kjell E
dc.contributor.authorBarrett, Robert T
dc.contributor.authorSandvik, Hanno
dc.contributor.authorYoccoz, Nigel
dc.date.accessioned2018-09-05T14:47:49Z
dc.date.available2018-09-05T14:47:49Z
dc.date.issued2012-06-22
dc.description.abstractClimate fluctuations and its effects on ecological processes are evident in most areas worldwide but whether such climatic effects are induced phenotypic plasticity or whether animals adapt to the new environment through micro‐evolutionary processes is poorly known. In this study we have analyzed long‐term data (22 years) on the relationship between climatic fluctuations and the adult survival of two distinct genetic morphs of the Common Guillemot (<i>Uria aalge</i>) breeding in a colony in the southern Barents Sea. In the North Atlantic, the Common Guillemot is a genetic color dimorphic species, with a non‐bridled morph, with an entirely black or dark brown head, and a bridled morph having a white eye ring and auricular groove sloping back from the eye. Our results show that the two morphs responded differently to variation in the Barents Sea winter sea‐surface temperature (SST). The survival rate of the bridled morph was negatively correlated to the winter SST in the Barents Sea, while that of the non‐bridled morph was slightly positively correlated to the same parameter. Over the whole study period, SSTs fluctuated between warm and cold winters and the overall mean survival rates of the two morphs remained similar (96.2% and 95.9% for the bridled and non‐bridled morph, respectively). This suggests a balanced selection and a stable dimorphism of the two morphs over this time period. The contrasting trends in the survival of the two morphs with respect to temperature suggest that further warming of the sea may induce directional changes and alter the frequency of the two morphs.en_US
dc.description.sponsorshipUiT The Arctic University of Norway The Norwegian Directorate for Nature Management The Norwegian Seabird Program (SEAPOP)en_US
dc.descriptionThis is the peer reviewed version of the following article: Reiertsen, T.K., Erikstad, K.E., Barrett, R.T., Sandvik, H. & Yoccoz, N. (2012). Climate fluctuations and differential survival of bridled and non-bridled Common Guillemots Uria aalge. Ecosphere, 3(6), 1-15. https://doi.org/10.1890/ES12-00031R, which has been published in final form at <a href=https://doi.org/10.1890/ES12-00031R > https://doi.org/10.1890/ES12-00031R</a>. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.en_US
dc.identifier.citationReiertsen, T.K., Erikstad, K.E., Barrett, R.T., Sandvik, H. & Yoccoz, N. (2012). Climate fluctuations and differential survival of bridled and non-bridled Common Guillemots Uria aalge. Ecosphere, 3(6), 1-15. https://doi.org/10.1890/ES12-00031Ren_US
dc.identifier.issn2150-8925
dc.identifier.otherFRIDAID 931222
dc.identifier.other10.1890/ES12-00031R
dc.identifier.urihttps://hdl.handle.net/10037/13677
dc.language.isoengen_US
dc.publisherEcological Society of Americaen_US
dc.relation.journalEcosphere
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480en_US
dc.subjectBarents Seaen_US
dc.subjectclimateen_US
dc.subjectcolor polymorphismen_US
dc.subjectCommon Guillemotsen_US
dc.subjectdemographyen_US
dc.subjectmicroevolutionen_US
dc.subjectsea surface temperatureen_US
dc.subjectsurvivalen_US
dc.subjectUria aalgeen_US
dc.titleClimate fluctuations and differential survival of bridled and non-bridled Common Guillemots Uria aalgeen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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