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dc.contributor.advisorDescamps, Sébastien
dc.contributor.advisorYoccoz, Nigel Gilles
dc.contributor.authorLopez-Sarasa, Inigo
dc.date.accessioned2015-08-25T07:43:32Z
dc.date.available2015-08-25T07:43:32Z
dc.date.issued2015-05-15
dc.description.abstractIntegrating information about the physiology of individuals and their reproductive performance can be a key aspect in determining the relationships between environmental conditions and demographic parameters, and of the individual variability in these relationships. Telomeres are the protective caps of chromosomes found in eukaryotic cells. They generally shorten in relation to the stressors an individual encounters during its life. Telomere length and telomere dynamics can provide ecologists with an overview of the physiological state of an individual. In order to understand the relationship between telomere length and breeding success, and to explore the change of telomere length with time, we measured telomere length in erythrocytes of wild Antarctic petrels (Thalassoica Antarctica) in a longitudinal study covering three field seasons. Our models do not support any relationship between telomere length and breeding success. Telomere loss was small (2.7% of the total range of variation of the telomere variable of the birds in this study). Additionally, we found a potential negative selection of long telomere birds during a breeding season with extreme weather events. We provide suggestions that could help tease apart the effect of environmental vs. individual factors on breeding success.en_US
dc.identifier.urihttps://hdl.handle.net/10037/7957
dc.identifier.urnURN:NBN:no-uit_munin_7544
dc.language.isoengen_US
dc.publisherUiT Norges arktiske universiteten_US
dc.publisherUiT The Arctic University of Norwayen_US
dc.rights.accessRightsopenAccess
dc.rights.holderCopyright 2015 The Author(s)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/3.0en_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)en_US
dc.subject.courseIDBIO-3950en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Zoophysiology and comparative physiology: 483en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Zoofysiologi og komparativ fysiologi: 483en_US
dc.subjectTelomere lengthen_US
dc.subjectAntarctic petrelen_US
dc.subjectbreeding successen_US
dc.subjectphysiological stateen_US
dc.subjectThalassoica antarcticaen_US
dc.titleBreeding success in relation to telomere length in a long-lived seabird, the Antarctic Petrel (Thalassoica antarctica)en_US
dc.typeMaster thesisen_US
dc.typeMastergradsoppgaveen_US


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Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)