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dc.contributor.author
Meinzer, Frederick C.
dc.contributor.author
Campanello, Paula Inés
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Domec, Jean Christophe
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Gatti, Maria Genoveva
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Goldstein, Guillermo Hernan
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Villalobos Vega, Randol
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Woodruff, David R.
dc.date.available
2018-09-27T19:34:02Z
dc.date.issued
2008-12
dc.identifier.citation
Meinzer, Frederick C.; Campanello, Paula Inés; Domec, Jean Christophe; Gatti, Maria Genoveva; Goldstein, Guillermo Hernan; et al.; Constraints on physiological function associated with branch architecture and wood density in tropical forest trees; Oxford University Press; Tree Physiology; 28; 11; 12-2008; 1609-1617
dc.identifier.issn
0829-318X
dc.identifier.uri
http://hdl.handle.net/11336/61118
dc.description.abstract
This study examined how leaf and stem functional traits related to gas exchange and water balance scale with two potential proxies for tree hydraulic architecture: the leaf area:sapwood area ratio (AL:AS) and wood density (ρw). We studied the upper crowns of individuals of 15 tropical forest tree species at two sites in Panama with contrasting moisture regimes and forest types. Transpiration and maximum photosynthetic electron transport rate (ETRmax) per unit leaf area declined sharply with increasing AL:AS, as did the ratio of ETR max to leaf N content, an index of photosynthetic nitrogen-use efficiency. Midday leaf water potential, bulk leaf osmotic potential at zero turgor, branch xylem specific conductivity, leaf-specific conductivity and stem and leaf capacitance all declined with increasing ρw. At the branch scale, AL:AS and total leaf N content per unit sapwood area increased with ρw, resulting in a 30% increase in ETRmax per unit sapwood area with a doubling of ρw. These compensatory adjustments in AL:AS, N allocation and potential photosynthetic capacity at the branch level were insufficient to completely offset the increased carbon costs of producing denser wood, and exacerbated the negative impact of increasing ρw on branch hydraulics and leaf water status. The suite of tree functional and architectural traits studied appeared to be constrained by the hydraulic and mechanical consequences of variation in ρw. © 2008 Heron Publishing.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Capacitance
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Functional Convergence
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Hydraulic Architecture
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Osmotic Potential
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Photosynthesis
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Transpiration
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Water Potential
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Otras Ciencias Biológicas
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Constraints on physiological function associated with branch architecture and wood density in tropical forest trees
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-18T14:07:01Z
dc.identifier.eissn
1758-4469
dc.journal.volume
28
dc.journal.number
11
dc.journal.pagination
1609-1617
dc.journal.pais
Reino Unido
dc.journal.ciudad
Oxford
dc.description.fil
Fil: Meinzer, Frederick C.. United States Department of Agriculture; Estados Unidos
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Fil: Campanello, Paula Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
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Fil: Domec, Jean Christophe. North Carolina State University; Estados Unidos
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Fil: Gatti, Maria Genoveva. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. United States Department of Agriculture; Estados Unidos
dc.description.fil
Fil: Goldstein, Guillermo Hernan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. University of Miami; Estados Unidos
dc.description.fil
Fil: Villalobos Vega, Randol. University of Miami; Estados Unidos
dc.description.fil
Fil: Woodruff, David R.. United States Department of Agriculture; Estados Unidos
dc.journal.title
Tree Physiology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1093/treephys/28.11.1609
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/treephys/article/28/11/1609/1671283?searchresult=1


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