Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachment

In savanna environments, plants have specific leaf traits to deal with high irradiance. These traits allow plants to show high carbon assimilation capacity. However, under encroachment, reduced light availability may act as a filter on traits of plants established under typical savanna conditions. H...

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Detalles Bibliográficos
Autores: Carlos, Natália Aparecida [UNESP], Rossatto, Davi Rodrigo [UNESP]
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/175180
Acceso en línea:http://dx.doi.org/10.1007/s40626-017-0091-0
http://hdl.handle.net/11449/175180
Access Level:acceso abierto
Palabra clave:Cerrado
Encroachment
Photosynthesis
Specific leaf area
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spelling Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachmentCerradoEncroachmentPhotosynthesisSpecific leaf areaIn savanna environments, plants have specific leaf traits to deal with high irradiance. These traits allow plants to show high carbon assimilation capacity. However, under encroachment, reduced light availability may act as a filter on traits of plants established under typical savanna conditions. Here we studied morpho-physiological traits of species exclusively found in typical and forested savanna conditions to evaluate how encroachment selects for specific leaf traits in such environments. We also evaluated if species occurring in distinct encroached situations would show plasticity to deal with light variations. We studied two species exclusively found in typical savanna (TS, open condition), two species exclusively found in forested savanna (FS, encroached condition) and two species growing along a gradient of tree encroachment (typical, dense and forested savanna). We measured specific leaf area (SLA), maximum photosynthetic rate in an area basis (Amax), stomatal conductance (gs), water use efficiency (WUE), leaf carbon (C) and nitrogen (N) concentrations. We found that herbaceous species exclusively found in TS possess higher Amax, gs, WUE and C in comparison with plants from forested savanna. Such strategies are necessary to thrive under environments with elevated irradiances. In turn, species from FS showed elevated SLA and foliar N concentration, strategies linked to capture diffuse light in forested environments. Species capable of thriving in sites with distinct degrees of encroachment changed their leaf traits according with light availability. We conclude that differences in leaf traits between typical and forested savanna species may explain the non-occurrence of typical savanna species when their environment become encroached. Only those species capable of showing a certain degree of plasticity may survive under such distinct encroached states.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Departamento de Biologia Faculdade de Ciências Agrárias e Veterinárias Univ. Estadual Paulista (Unesp) Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane S/N, Vila IndustrialDepartamento de Biologia Faculdade de Ciências Agrárias e Veterinárias Univ. Estadual Paulista (Unesp) Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane S/N, Vila IndustrialFAPESP: 2013/18049-6FAPESP: 2014/15304-8CNPq: 301589/2015-1Universidade Estadual Paulista (Unesp)2018-12-11T17:14:43Z2018-12-11T17:14:43Z2017-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article155-163application/pdfhttp://dx.doi.org/10.1007/s40626-017-0091-0Theoretical and Experimental Plant Physiology, v. 29, n. 3, p. 155-163, 2017.2197-0025http://hdl.handle.net/11449/17518010.1007/s40626-017-0091-02-s2.0-850295792622-s2.0-85029579262.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTheoretical and Experimental Plant Physiology0,493info:eu-repo/semantics/openAccessCarlos, Natália Aparecida [UNESP]Rossatto, Davi Rodrigo [UNESP]2024-06-06T13:04:11Zoai:repositorio.unesp.br:11449/175180Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-06-06T13:04:11Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachment
title Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachment
spellingShingle Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachment
Carlos, Natália Aparecida [UNESP]
Cerrado
Encroachment
Photosynthesis
Specific leaf area
title_short Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachment
title_full Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachment
title_fullStr Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachment
title_full_unstemmed Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachment
title_sort Leaf traits combinations may explain the occurrence of savanna herbaceous species along a gradient of tree encroachment
dc.creator.none.fl_str_mv Carlos, Natália Aparecida [UNESP]
Rossatto, Davi Rodrigo [UNESP]
author Carlos, Natália Aparecida [UNESP]
author_facet Carlos, Natália Aparecida [UNESP]
Rossatto, Davi Rodrigo [UNESP]
author_role author
author2 Rossatto, Davi Rodrigo [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.subject.por.fl_str_mv Cerrado
Encroachment
Photosynthesis
Specific leaf area
topic Cerrado
Encroachment
Photosynthesis
Specific leaf area
description In savanna environments, plants have specific leaf traits to deal with high irradiance. These traits allow plants to show high carbon assimilation capacity. However, under encroachment, reduced light availability may act as a filter on traits of plants established under typical savanna conditions. Here we studied morpho-physiological traits of species exclusively found in typical and forested savanna conditions to evaluate how encroachment selects for specific leaf traits in such environments. We also evaluated if species occurring in distinct encroached situations would show plasticity to deal with light variations. We studied two species exclusively found in typical savanna (TS, open condition), two species exclusively found in forested savanna (FS, encroached condition) and two species growing along a gradient of tree encroachment (typical, dense and forested savanna). We measured specific leaf area (SLA), maximum photosynthetic rate in an area basis (Amax), stomatal conductance (gs), water use efficiency (WUE), leaf carbon (C) and nitrogen (N) concentrations. We found that herbaceous species exclusively found in TS possess higher Amax, gs, WUE and C in comparison with plants from forested savanna. Such strategies are necessary to thrive under environments with elevated irradiances. In turn, species from FS showed elevated SLA and foliar N concentration, strategies linked to capture diffuse light in forested environments. Species capable of thriving in sites with distinct degrees of encroachment changed their leaf traits according with light availability. We conclude that differences in leaf traits between typical and forested savanna species may explain the non-occurrence of typical savanna species when their environment become encroached. Only those species capable of showing a certain degree of plasticity may survive under such distinct encroached states.
publishDate 2017
dc.date.none.fl_str_mv 2017-09-01
2018-12-11T17:14:43Z
2018-12-11T17:14:43Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s40626-017-0091-0
Theoretical and Experimental Plant Physiology, v. 29, n. 3, p. 155-163, 2017.
2197-0025
http://hdl.handle.net/11449/175180
10.1007/s40626-017-0091-0
2-s2.0-85029579262
2-s2.0-85029579262.pdf
url http://dx.doi.org/10.1007/s40626-017-0091-0
http://hdl.handle.net/11449/175180
identifier_str_mv Theoretical and Experimental Plant Physiology, v. 29, n. 3, p. 155-163, 2017.
2197-0025
10.1007/s40626-017-0091-0
2-s2.0-85029579262
2-s2.0-85029579262.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Theoretical and Experimental Plant Physiology
0,493
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 155-163
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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score 15,198674

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