Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands

Autores
Spirito, María Florencia; Yahdjian, María Laura; Tognetti, Pedro Maximiliano; Chaneton, Enrique Jose
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Old fields often become dominated by exotic plants establishing persistent community states. Ecosystem function in such novel plant assemblages may differ widely from that in the alternative, native-dominated counterparts. We evaluated soil ecosystem attributes in native and exotic (synthetic) grass assemblages established on a newly abandoned field, and in remnants of native grassland in the Inland Pampa, Argentina. We asked whether exotics alter soil functioning through the quality of the litter they shed or by changing the decomposition environment. Litter decomposition of the exotic dominant Festuca arundinacea in exotic assemblages was faster than that of the native dominant Paspalum quadrifarium in native assemblages and remnant grasslands. Decomposition of a standard litter (Triticum aestivum) was also faster in exotic assemblages than in native assemblages and remnant grasslands. In a common garden, F. arundinacea showed higher decay rates than P. quadrifarium, which reflected the higher N content and lower C:N of the exotic grass litter. Soil respiration rates were higher in the exotic than in the native assemblages and remnant grasslands. Yet there were no significant differences in soil N availability or net N mineralization between exotic and native assemblages. Our results show that exotic grass dominance affected ecosystem function by creating a more biotically active soil environment as well as by producing a more decomposable leaf litter. These changes might contribute to the extended dominance of fast-growing exotic grasses during old-field succession. Increased organic matter turnover under novel exotic communities would reduce the carbon storage capacity of the system in the long term.
Fil: Spirito, María Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Yahdjian, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Tognetti, Pedro Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; Argentina
Fil: Chaneton, Enrique Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Materia
Litter Decomposition
Biological Invasions
Pampas Region
Grasslands
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/4171

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network_name_str CONICET Digital (CONICET)
spelling Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslandsSpirito, María FlorenciaYahdjian, María LauraTognetti, Pedro MaximilianoChaneton, Enrique JoseLitter DecompositionBiological InvasionsPampas RegionGrasslandshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Old fields often become dominated by exotic plants establishing persistent community states. Ecosystem function in such novel plant assemblages may differ widely from that in the alternative, native-dominated counterparts. We evaluated soil ecosystem attributes in native and exotic (synthetic) grass assemblages established on a newly abandoned field, and in remnants of native grassland in the Inland Pampa, Argentina. We asked whether exotics alter soil functioning through the quality of the litter they shed or by changing the decomposition environment. Litter decomposition of the exotic dominant Festuca arundinacea in exotic assemblages was faster than that of the native dominant Paspalum quadrifarium in native assemblages and remnant grasslands. Decomposition of a standard litter (Triticum aestivum) was also faster in exotic assemblages than in native assemblages and remnant grasslands. In a common garden, F. arundinacea showed higher decay rates than P. quadrifarium, which reflected the higher N content and lower C:N of the exotic grass litter. Soil respiration rates were higher in the exotic than in the native assemblages and remnant grasslands. Yet there were no significant differences in soil N availability or net N mineralization between exotic and native assemblages. Our results show that exotic grass dominance affected ecosystem function by creating a more biotically active soil environment as well as by producing a more decomposable leaf litter. These changes might contribute to the extended dominance of fast-growing exotic grasses during old-field succession. Increased organic matter turnover under novel exotic communities would reduce the carbon storage capacity of the system in the long term.Fil: Spirito, María Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Yahdjian, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Tognetti, Pedro Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; ArgentinaFil: Chaneton, Enrique Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaElsevier2012-11-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/4171Spirito, María Florencia; Yahdjian, María Laura; Tognetti, Pedro Maximiliano; Chaneton, Enrique Jose; Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands; Elsevier; Acta Oecologica; 54; 14-11-2012; 4-121146-609Xenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1146609X12001361info:eu-repo/semantics/altIdentifier/doi/10.1016/j.actao.2012.10.004info:eu-repo/semantics/altIdentifier/issn/1146-609Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:45Zoai:ri.conicet.gov.ar:11336/4171instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:35:46.018CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands
title Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands
spellingShingle Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands
Spirito, María Florencia
Litter Decomposition
Biological Invasions
Pampas Region
Grasslands
title_short Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands
title_full Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands
title_fullStr Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands
title_full_unstemmed Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands
title_sort Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands
dc.creator.none.fl_str_mv Spirito, María Florencia
Yahdjian, María Laura
Tognetti, Pedro Maximiliano
Chaneton, Enrique Jose
author Spirito, María Florencia
author_facet Spirito, María Florencia
Yahdjian, María Laura
Tognetti, Pedro Maximiliano
Chaneton, Enrique Jose
author_role author
author2 Yahdjian, María Laura
Tognetti, Pedro Maximiliano
Chaneton, Enrique Jose
author2_role author
author
author
dc.subject.none.fl_str_mv Litter Decomposition
Biological Invasions
Pampas Region
Grasslands
topic Litter Decomposition
Biological Invasions
Pampas Region
Grasslands
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Old fields often become dominated by exotic plants establishing persistent community states. Ecosystem function in such novel plant assemblages may differ widely from that in the alternative, native-dominated counterparts. We evaluated soil ecosystem attributes in native and exotic (synthetic) grass assemblages established on a newly abandoned field, and in remnants of native grassland in the Inland Pampa, Argentina. We asked whether exotics alter soil functioning through the quality of the litter they shed or by changing the decomposition environment. Litter decomposition of the exotic dominant Festuca arundinacea in exotic assemblages was faster than that of the native dominant Paspalum quadrifarium in native assemblages and remnant grasslands. Decomposition of a standard litter (Triticum aestivum) was also faster in exotic assemblages than in native assemblages and remnant grasslands. In a common garden, F. arundinacea showed higher decay rates than P. quadrifarium, which reflected the higher N content and lower C:N of the exotic grass litter. Soil respiration rates were higher in the exotic than in the native assemblages and remnant grasslands. Yet there were no significant differences in soil N availability or net N mineralization between exotic and native assemblages. Our results show that exotic grass dominance affected ecosystem function by creating a more biotically active soil environment as well as by producing a more decomposable leaf litter. These changes might contribute to the extended dominance of fast-growing exotic grasses during old-field succession. Increased organic matter turnover under novel exotic communities would reduce the carbon storage capacity of the system in the long term.
Fil: Spirito, María Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Yahdjian, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Tognetti, Pedro Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos y Sistemas de Información; Argentina
Fil: Chaneton, Enrique Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
description Old fields often become dominated by exotic plants establishing persistent community states. Ecosystem function in such novel plant assemblages may differ widely from that in the alternative, native-dominated counterparts. We evaluated soil ecosystem attributes in native and exotic (synthetic) grass assemblages established on a newly abandoned field, and in remnants of native grassland in the Inland Pampa, Argentina. We asked whether exotics alter soil functioning through the quality of the litter they shed or by changing the decomposition environment. Litter decomposition of the exotic dominant Festuca arundinacea in exotic assemblages was faster than that of the native dominant Paspalum quadrifarium in native assemblages and remnant grasslands. Decomposition of a standard litter (Triticum aestivum) was also faster in exotic assemblages than in native assemblages and remnant grasslands. In a common garden, F. arundinacea showed higher decay rates than P. quadrifarium, which reflected the higher N content and lower C:N of the exotic grass litter. Soil respiration rates were higher in the exotic than in the native assemblages and remnant grasslands. Yet there were no significant differences in soil N availability or net N mineralization between exotic and native assemblages. Our results show that exotic grass dominance affected ecosystem function by creating a more biotically active soil environment as well as by producing a more decomposable leaf litter. These changes might contribute to the extended dominance of fast-growing exotic grasses during old-field succession. Increased organic matter turnover under novel exotic communities would reduce the carbon storage capacity of the system in the long term.
publishDate 2012
dc.date.none.fl_str_mv 2012-11-14
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/4171
Spirito, María Florencia; Yahdjian, María Laura; Tognetti, Pedro Maximiliano; Chaneton, Enrique Jose; Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands; Elsevier; Acta Oecologica; 54; 14-11-2012; 4-12
1146-609X
url http://hdl.handle.net/11336/4171
identifier_str_mv Spirito, María Florencia; Yahdjian, María Laura; Tognetti, Pedro Maximiliano; Chaneton, Enrique Jose; Soil ecosystem function under native and exotic plant assemblages as alternative states in successional grasslands; Elsevier; Acta Oecologica; 54; 14-11-2012; 4-12
1146-609X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1146609X12001361
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.actao.2012.10.004
info:eu-repo/semantics/altIdentifier/issn/1146-609X
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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