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dc.contributor.authorMcDowell, Nate G
dc.contributor.authorGrossiord, Charlotte
dc.contributor.authorAdams, Henry D
dc.contributor.authorPinzón-Navarro, Sara
dc.contributor.authorMackay, D Scott
dc.contributor.authorBreshears, David D
dc.contributor.authorAllen, Craig D
dc.contributor.authorBorrego, Isaac
dc.contributor.authorDickman, L Turin
dc.contributor.authorCollins, Adam
dc.contributor.authorGaylord, Monica
dc.contributor.authorMcBranch, Natalie
dc.contributor.authorPockman, William T
dc.contributor.authorVilagrosa, Alberto
dc.contributor.authorAukema, Brian
dc.contributor.authorGoodsman, Devin
dc.contributor.authorXu, Chonggang
dc.date.accessioned2019-08-12T19:02:40Z
dc.date.available2019-08-12T19:02:40Z
dc.date.issued2019-04-16
dc.identifier.citationNate G McDowell et al 2019 Environ. Res. Lett. 14 045014en_US
dc.identifier.issn1748-9326
dc.identifier.doi10.1088/1748-9326/ab0921
dc.identifier.urihttp://hdl.handle.net/10150/633784
dc.description.abstractPredictions of warmer droughts causing increasing forest mortality are becoming abundant, yet few studies have investigated the mechanisms of forest persistence. To examine the resistance of forests to warmer droughts, we used a five-year precipitation reduction (similar to 45% removal), heat (+4 degrees C above ambient) and combined drought and heat experiment in an isolated stand of mature Pinus edulis-Juniperus monosperma. Despite severe experimental drought and heating, no trees died, and we observed only minor evidence of hydraulic failure or carbon starvation. Two mechanisms promoting survival were supported. First, access to bedrock water, or 'hydraulic refugia' aided trees in their resistance to the experimental conditions. Second, the isolation of this stand amongst a landscape of dead trees precluded ingress by Ips confusus, frequently the ultimate biotic mortality agent of pinon. These combined abiotic and biotic landscape-scale processes can moderate the impacts of future droughts on tree mortality by enabling tree avoidance of hydraulic failure, carbon starvation, and exposure to attacking abiotic agents.en_US
dc.description.sponsorshipPacific Northwest National Lab's LDRD program; NSF [EF-1340624, EF-1550756, EAR-1331408, DEB-1824796, DEB-1833502, IOS-1450679, IOS-1444571, IOS-1547796]; Los Alamos National Laboratory; Swiss National Science Foundation SNF [PZ00P3_174068]; Generalitat Valenciana [BEST/2016/289]; project Survive-2 from the Spanish Government [CGL2015-69773-C2-2-P MINECO/FEDER]; Department of Energy, Office of Scienceen_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.rights© 2019 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.subjectdroughten_US
dc.subjectwarmingen_US
dc.subjectdie-offen_US
dc.subjectprecipitationen_US
dc.subjectrefugiaen_US
dc.titleMechanisms of a coniferous woodland persistence under drought and heaten_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Sch Nat Resources & Environmen_US
dc.contributor.departmentUniv Arizona, Dept Ecol & Evolutionary Biolen_US
dc.identifier.journalENVIRONMENTAL RESEARCH LETTERSen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.volume14
dc.source.issue4
dc.source.beginpage045014
refterms.dateFOA2019-08-12T19:02:40Z


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© 2019 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.
Except where otherwise noted, this item's license is described as © 2019 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence.