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dc.contributor.authorJenouvrier, Stephanie  Concept link
dc.contributor.authorPeron, Clara  Concept link
dc.contributor.authorWeimerskirch, Henri  Concept link
dc.date.accessioned2015-12-18T18:52:53Z
dc.date.available2015-12-18T18:52:53Z
dc.date.issued2015-11
dc.identifier.citationEcological Monographs 85 (2015): 605–624en_US
dc.identifier.urihttps://hdl.handle.net/1912/7699
dc.descriptionAuthor Posting. © Ecological Society of America, 2015. This article is posted here by permission of Ecological Society of America for personal use, not for redistribution. The definitive version was published in Ecological Monographs 85 (2015): 605–624, doi:10.1890/14-1834.1.en_US
dc.description.abstractExtreme climatic conditions and their ecological impacts are currently emerging as critical features of climate change. We studied extreme sea ice condition (ESIC) and found it impacts both life-history traits and population dynamics of an Antarctic seabird well beyond ordinary variability. The Southern Fulmar (Fulmarus glacialoides) is an ice-dependent seabird, and individuals forage near the ice edge. During an extreme unfavorable year (when sea ice area is reduced and distance between ice edge and colony is high), observed foraging trips were greater in distance and duration. As a result, adults brought less food to their chicks, which fledged in the poorest body condition. During such unfavorable years, breeding success was extremely low and population growth rate (λ) was greatly reduced. The opposite pattern occurred during extreme favorable years. Previous breeding status had a strong influence on life-history traits and population dynamics, and their responses to extreme conditions. Successful breeders had a higher chance of breeding and raising their chick successfully during the following breeding season as compared to other breeding stages, regardless of environmental conditions. Consequently, they coped better with unfavorable ESIC. The effect of change in successful breeder vital rates on λ was greater than for other stages' vital rates, except for pre-breeder recruitment probabilities, which most affected λ. For environments characterized by ordinary sea ice conditions, interindividual differences were more likely to persist over the life of individuals and randomness in individual pathways was low, suggesting individual heterogeneity in vital rates arising from innate or acquired phenotypic traits. Additionally, unfavorable ESIC tended to exacerbate individual differences in intrinsic quality, expressed through differences in reproductive status. We discuss the strong effects of ESIC on Southern Fulmar life-history traits in an evolutionary context. ESICs strongly affect fitness components and act as potentially important agents of natural selection of life histories related to intrinsic quality and intermittent breeding. In addition, recruitment is a highly plastic trait that, if heritable, could have a critical role in evolution of life histories. Finally, we find that changes in the frequency of extreme events may strongly impact persistence of Southern Fulmar populations.en_US
dc.description.sponsorshipS. Jenouvrier acknowledges support from Ocean Life Institute and WHOI Unrestricted funds, and NSF projects #1257545 and #1246407.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherEcological Society of Americaen_US
dc.relation.urihttps://doi.org/10.1890/14-1834.1
dc.subjectBody conditionen_US
dc.subjectForaging behaviorsen_US
dc.subjectFulmarus glacialoidesen_US
dc.subjectIndividual qualityen_US
dc.subjectIndividual stochasticityen_US
dc.subjectLife-history trade-offsen_US
dc.subjectSea iceen_US
dc.subjectSensitivitiesen_US
dc.subjectSouthern Fulmaren_US
dc.subjectStochastic population growthen_US
dc.subjectTerre Adelie, East Antarcticaen_US
dc.titleExtreme climate events and individual heterogeneity shape life-history traits and population dynamicsen_US
dc.typeArticleen_US
dc.identifier.doi10.1890/14-1834.1


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