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dc.contributor.authorHansen, Brage Bremset
dc.contributor.authorGamelon, Marlène
dc.contributor.authorAlbon, Steve D.
dc.contributor.authorLee, Aline Magdalena
dc.contributor.authorStien, Audun
dc.contributor.authorIrvine, Robert Justin
dc.contributor.authorSæther, Bernt-Erik
dc.contributor.authorLoe, Leif Egil
dc.contributor.authorRopstad, Erik
dc.contributor.authorVeiberg, Vebjørn
dc.contributor.authorGrøtan, Vidar
dc.description.abstractExtreme climate events often cause population crashes but are difficult to account for in population-dynamic studies. Especially in long-lived animals, density dependence and demography may induce lagged impacts of perturbations on population growth. In Arctic ungulates, extreme rain-on-snow and ice-locked pastures have led to severe population crashes, indicating that increasingly frequent rain-on-snow events could destabilize populations. Here, using empirically parameterized, stochastic population models for High-Arctic wild reindeer, we show that more frequent rain-on-snow events actually reduce extinction risk and stabilize population dynamics due to interactions with age structure and density dependence. Extreme rain-on-snow events mainly suppress vital rates of vulnerable ages at high population densities, resulting in a crash and a new population state with resilient ages and reduced population sensitivity to subsequent icy winters. Thus, observed responses to single extreme events are poor predictors of population dynamics and persistence because internal density-dependent feedbacks act as a buffer against more frequent events.nb_NO
dc.publisherNature Publishing Groupnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleMore frequent extreme climate events stabilize reindeer population dynamicsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalNature Communicationsnb_NO
dc.relation.projectNorges forskningsråd: 244647nb_NO
dc.relation.projectNorges forskningsråd: 216051nb_NO
dc.relation.projectNorges forskningsråd: 276080nb_NO
dc.relation.projectNorges forskningsråd: 223257nb_NO
dc.description.localcodeOpen Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.nb_NO
cristin.unitnameInstitutt for biologi

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