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Thermal acclimation of leaf respiration of tropical trees and lianas: Response to experimental canopy warming, and consequences for tropical forest carbon balance

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dc.creatorSlot, Martijnspa
dc.creatorRey?Sánchez, Camilospa
dc.creatorGerber, Stefanspa
dc.creatorLichstein, Jeremy W.spa
dc.creatorWinter, Klausspa
dc.creatorKitajima, Kaoruspa
dc.date.accessioned2020-05-26T00:09:23Z
dc.date.available2020-05-26T00:09:23Z
dc.date.created2014spa
dc.description.abstractClimate warming is expected to increase respiration rates of tropical forest trees and lianas, which may negatively affect the carbon balance of tropical forests. Thermal acclimation could mitigate the expected respiration increase, but the thermal acclimation potential of tropical forests remains largely unknown. In a tropical forest in Panama, we experimentally increased nighttime temperatures of upper canopy leaves of three tree and two liana species by on average 3 °C for 1 week, and quantified temperature responses of leaf dark respiration. Respiration at 25 °C (R25) decreased with increasing leaf temperature, but acclimation did not result in perfect homeostasis of respiration across temperatures. In contrast, Q10 of treatment and control leaves exhibited similarly high values (range 2.5-3.0) without evidence of acclimation. The decrease in R25 was not caused by respiratory substrate depletion, as warming did not reduce leaf carbohydrate concentration. To evaluate the wider implications of our experimental results, we simulated the carbon cycle of tropical latitudes (24°S-24°N) from 2000 to 2100 using a dynamic global vegetation model (LM3VN) modified to account for acclimation. Acclimation reduced the degree to which respiration increases with climate warming in the model relative to a no-acclimation scenario, leading to 21% greater increase in net primary productivity and 18% greater increase in biomass carbon storage over the 21st century. We conclude that leaf respiration of tropical forest plants can acclimate to nighttime warming, thereby reducing the magnitude of the positive feedback between climate change and the carbon cycle. © 2014 John Wiley and amp; Sons Ltd.eng
dc.format.mimetypeapplication/pdf
dc.identifier.doihttps://doi.org/10.1111/gcb.12563
dc.identifier.issn13652486
dc.identifier.issn13541013
dc.identifier.urihttps://repository.urosario.edu.co/handle/10336/24157
dc.language.isoengspa
dc.publisherBlackwell Publishing Ltdspa
dc.relation.citationEndPage2926
dc.relation.citationIssueNo. 9
dc.relation.citationStartPage2915
dc.relation.citationTitleGlobal Change Biology
dc.relation.citationVolumeVol. 20
dc.relation.ispartofGlobal Change Biology, ISSN:13652486, 13541013, Vol.20, No.9 (2014); pp. 2915-2926spa
dc.relation.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84904966490&doi=10.1111%2fgcb.12563&partnerID=40&md5=bb09286b183aee6a8966f2661b7667f7spa
dc.rights.accesRightsinfo:eu-repo/semantics/openAccess
dc.rights.accesoAbierto (Texto Completo)spa
dc.source.instnameinstname:Universidad del Rosariospa
dc.source.reponamereponame:Repositorio Institucional EdocURspa
dc.subject.keywordAcclimationspa
dc.subject.keywordCarbon balancespa
dc.subject.keywordCarbon cyclespa
dc.subject.keywordCarbon fluxspa
dc.subject.keywordClimate effectspa
dc.subject.keywordForest canopyspa
dc.subject.keywordGlobal warmingspa
dc.subject.keywordLeafspa
dc.subject.keywordPrimary productionspa
dc.subject.keywordRespirationspa
dc.subject.keywordTemperature effectspa
dc.subject.keywordTropical forestspa
dc.subject.keywordPanama [central america]spa
dc.subject.keywordAcclimatizationspa
dc.subject.keywordBiological modelspa
dc.subject.keywordCarbon cyclespa
dc.subject.keywordForestspa
dc.subject.keywordHeatspa
dc.subject.keywordOxygen consumptionspa
dc.subject.keywordPanamaspa
dc.subject.keywordPhysiologyspa
dc.subject.keywordPlant leafspa
dc.subject.keywordTreespa
dc.subject.keywordTropic climatespa
dc.subject.keywordAcclimatizationspa
dc.subject.keywordCarbon cyclespa
dc.subject.keywordForestsspa
dc.subject.keywordHot temperaturespa
dc.subject.keywordModelseng
dc.subject.keywordOxygen consumptionspa
dc.subject.keywordPanamaspa
dc.subject.keywordPlant leavesspa
dc.subject.keywordTreesspa
dc.subject.keywordTropical climatespa
dc.subject.keywordCarbon fluxspa
dc.subject.keywordClimate changespa
dc.subject.keywordDgvmspa
dc.subject.keywordExperimental leaf warmingspa
dc.subject.keywordGlobal warmingspa
dc.subject.keywordNppspa
dc.subject.keywordPanamaspa
dc.subject.keywordRespirationspa
dc.subject.keywordTropical forestspa
dc.titleThermal acclimation of leaf respiration of tropical trees and lianas: Response to experimental canopy warming, and consequences for tropical forest carbon balancespa
dc.typearticleeng
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersion
dc.type.spaArtículospa
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