Differences in leaf thermoregulation and water use strategies between three co-occurring Atlantic forest tree species

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dc.contributor.authorFauset, Sophie
dc.contributor.authorFreitas, Helber C. [UNESP]
dc.contributor.authorGalbraith, David R.
dc.contributor.authorSullivan, Martin J. P.
dc.contributor.authorAidar, Marcos P. M.
dc.contributor.authorJoly, Carlos A.
dc.contributor.authorPhillips, Oliver L.
dc.contributor.authorVieira, Simone A.
dc.contributor.authorGloor, Manuel U.
dc.contributor.institutionUniv Leeds
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInst Bot Sao Paulo
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2018-11-26T17:52:11Z
dc.date.available2018-11-26T17:52:11Z
dc.date.issued2018-07-01
dc.description.abstractGiven anticipated climate changes, it is crucial to understand controls on leaf temperatures including variation between species in diverse ecosystems. In the first study of leaf energy balance in tropical montane forests, we observed current leaf temperature patterns on 3 tree species in the Atlantic forest, Brazil, over a 10-day period and assessed whether and why patterns may vary among species. We found large leaf-to-air temperature differences (maximum 18.3 degrees C) and high leaf temperatures (over 35 degrees C) despite much lower air temperatures (maximum 22 degrees C). Leaf-to-air temperature differences were influenced strongly by radiation, whereas leaf temperatures were also influenced by air temperature. Leaf energy balance modelling informed by our measurements showed that observed differences in leaf temperature between 2 species were due to variation in leaf width and stomatal conductance. The results suggest a trade-off between water use and leaf thermoregulation; Miconia cabussu has more conservative water use compared with Alchornea triplinervia due to lower transpiration under high vapour pressure deficit, with the consequence of higher leaf temperatures under thermal stress conditions. We highlight the importance of leaf functional traits for leaf thermoregulation and also note that the high radiation levels that occur in montane forests may exacerbate the threat from increasing air temperatures.en
dc.description.affiliationUniv Leeds, Sch Geog, Leeds LS2 9JT, W Yorkshire, England
dc.description.affiliationUniv Estadual Paulista, Dept Fis, Fac Ciencias, Ave Eng Luiz Edmundo Carrijo Coube 14-01, BR-17033360 Sao Paulo, Brazil
dc.description.affiliationInst Bot Sao Paulo, Ave Miguel Stefano, BR-04301902 Sao Paulo, Brazil
dc.description.affiliationUniv Estadual Campinas, Inst Biol, Dept Biol Vegetal, Rua Monteiro Lobato,Cidade Univ, BR-13083862 Sao Paulo, Brazil
dc.description.affiliationUniv Estadual Campinas, Nucleo Estudos & Pesquisas Ambientais, Rua Flamboyants 155, BR-13083867 Sao Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Fis, Fac Ciencias, Ave Eng Luiz Edmundo Carrijo Coube 14-01, BR-17033360 Sao Paulo, Brazil
dc.description.sponsorshipBrazilian National Research Council
dc.description.sponsorshipEuropean Research Council
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipNatural Environment Research Council
dc.description.sponsorshipIdBrazilian National Research Council: 403710/2012-0
dc.description.sponsorshipIdEuropean Research Council: 291585
dc.description.sponsorshipIdFAPESP: 2014/13322-9
dc.description.sponsorshipIdFAPESP: 2012/51872-5
dc.description.sponsorshipIdFAPESP: 2012/51509-8
dc.description.sponsorshipIdNatural Environment Research Council: NE/N012542/1
dc.description.sponsorshipIdNatural Environment Research Council: NE/K016431/1
dc.format.extent1618-1631
dc.identifierhttp://dx.doi.org/10.1111/pce.13208
dc.identifier.citationPlant Cell And Environment. Hoboken: Wiley, v. 41, n. 7, p. 1618-1631, 2018.
dc.identifier.doi10.1111/pce.13208
dc.identifier.issn0140-7791
dc.identifier.urihttp://hdl.handle.net/11449/164340
dc.identifier.wosWOS:000435808900012
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofPlant Cell And Environment
dc.relation.ispartofsjr2,671
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectboundary layer
dc.subjectenergy balance
dc.subjectfunctional traits
dc.subjectleaf temperature
dc.subjectleaf width
dc.subjectmontane
dc.subjectradiation
dc.subjectstomatal conductance
dc.subjecttranspiration
dc.subjecttropical forest
dc.titleDifferences in leaf thermoregulation and water use strategies between three co-occurring Atlantic forest tree speciesen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell
unesp.departmentFísica - FCpt

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