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dc.date.accessioned2017-08-16T13:08:31Z
dc.date.available2017-08-16T13:08:31Z
dc.date.created2014-01-27T08:59:43Z
dc.date.issued2014
dc.identifier.citationVindenes, Yngvild Edeline, Eric Ohlberger, Jan Langangen, Øystein Winfield, Ian J. Stenseth, Nils Christian Vøllestad, Leif Asbjørn . Effects of climate change on trait-based dynamics of a top predator in freshwater ecosystems. American Naturalist. 2014, 183(2), 243-256
dc.identifier.urihttp://hdl.handle.net/10852/57090
dc.description.abstractPredicted universal responses of ectotherms to climate warming include increased maximum population growth rate and changes in body size through the temperature-size rule. However, the mechanisms that would underlie these predicted responses are not clear. Many studies have focused on proximate mechanisms of physiological processes affecting individual growth. One can also consider ultimate mechanisms involving adaptive explanations by evaluating temperature effects on different vital rates across the life history and using the information in a population dynamical model. Here, we combine long-term data for a top predator in freshwater ecosystems (pike; Esox lucius) with a stochastic integral projection model to analyze concurrent effects of temperature on vital rates, body size, and population dynamics. As predicted, the net effect of warming on population growth rate (fitness) is positive, but the thermal sensitivity of this rate is highly size- and vital rate–dependent. These results are not sensitive to increasing variability in temperature. Somatic growth follows the temperature-size rule, and our results support an adaptive explanation for this response. The stable length structure of the population shifts with warming toward an increased proportion of medium-sized but a reduced proportion of small and large individuals. This study highlights how demographic approaches can help reveal complex underlying mechanisms for population responses to warming. © 2014 University of Chicago Pressen_US
dc.languageEN
dc.publisherUniversity of Chicago Press
dc.titleEffects of climate change on trait-based dynamics of a top predator in freshwater ecosystemsen_US
dc.typeJournal articleen_US
dc.creator.authorVindenes, Yngvild
dc.creator.authorEdeline, Eric
dc.creator.authorOhlberger, Jan
dc.creator.authorLangangen, Øystein
dc.creator.authorWinfield, Ian J.
dc.creator.authorStenseth, Nils Christian
dc.creator.authorVøllestad, Leif Asbjørn
cristin.unitcode185,15,29,50
cristin.unitnameCentre for Ecological and Evolutionary Synthesis
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.cristin1100054
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=American Naturalist&rft.volume=183&rft.spage=243&rft.date=2014
dc.identifier.jtitleAmerican Naturalist
dc.identifier.volume183
dc.identifier.issue2
dc.identifier.startpage243
dc.identifier.endpage256
dc.identifier.doihttp://dx.doi.org/10.1086/674610
dc.identifier.urnURN:NBN:no-59866
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn0003-0147
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/57090/2/674610.pdf
dc.type.versionPublishedVersion


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