Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands

Autores
Gaitán, Juan José; Bran, Donaldo Eduardo; Oliva, Gabriel Esteban; Aguiar, Martin Roberto; Buono, Gustavo Gabriel; Ferrante, Daniela; Nakamatsu, Viviana; Ciari, Georgina; Salomone, Jorge M.; Massara, Virginia; García Martínez, Guillermo Carlos; Maestre, Fernando T.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Over 65% of drylands are used for grazing of managed livestock. Understanding what drives grazing effects on the structure and functioning of rangelands is critical for achieving their sustainability. We studied a network of 239 sites across Patagonian rangelands (Argentina), which constitute one of the world's largest rangeland area. We aimed to (i) evaluate how aridity and grazing affect ecosystem structure and functioning and (ii) test the usefulness of the landscape function analysis (LFA) indices (stability, infiltration and nutrient cycling) as surrogates of soil functioning. Aridity decreased species richness and the cover of palatable grasses but increased the cover of palatable shrubs. Grazing pressure negatively impacted the cover of palatable grasses and species richness but did not affect the cover of shrubs. Aridity had direct and indirect negative relationships with the LFA indices. Grazing pressure had no direct effects on the LFA indices but had an indirect negative effect on them by affecting vegetation structure. The LFA indices were positively and negatively correlated with soil organic carbon and sand contents, respectively, suggesting that these indices are useful proxies of soil functional processes in Patagonian rangelands. Our findings indicate that aridity and overgrazing have convergent effects on the structure and functioning of ecosystems, as both promoted reductions in species richness, the cover of palatable grasses and soil functioning. Rangeland management activities should aim to enhance species richness and the cover of palatable grasses, as these actions could contribute to offset adverse effects of ongoing increases in aridity on drylands. Copyright © 2017 John Wiley & Sons, Ltd.
Fil: Gaitán, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Suelos; Argentina
Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Aguiar, Martin Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
Fil: Buono, Gustavo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Nakamatsu, Viviana. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Ciari, Georgina. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Salomone, Jorge M.. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Massara, Virginia. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: García Martínez, Guillermo Carlos. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Maestre, Fernando T.. Universidad Rey Juan Carlos; España
Materia
Desertification
Drylands
Grass-Shrub Balance
Landscape Function Analysis
Species Richness
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/51495
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian RangelandsGaitán, Juan JoséBran, Donaldo EduardoOliva, Gabriel EstebanAguiar, Martin RobertoBuono, Gustavo GabrielFerrante, DanielaNakamatsu, VivianaCiari, GeorginaSalomone, Jorge M.Massara, VirginiaGarcía Martínez, Guillermo CarlosMaestre, Fernando T.DesertificationDrylandsGrass-Shrub BalanceLandscape Function AnalysisSpecies Richnesshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Over 65% of drylands are used for grazing of managed livestock. Understanding what drives grazing effects on the structure and functioning of rangelands is critical for achieving their sustainability. We studied a network of 239 sites across Patagonian rangelands (Argentina), which constitute one of the world's largest rangeland area. We aimed to (i) evaluate how aridity and grazing affect ecosystem structure and functioning and (ii) test the usefulness of the landscape function analysis (LFA) indices (stability, infiltration and nutrient cycling) as surrogates of soil functioning. Aridity decreased species richness and the cover of palatable grasses but increased the cover of palatable shrubs. Grazing pressure negatively impacted the cover of palatable grasses and species richness but did not affect the cover of shrubs. Aridity had direct and indirect negative relationships with the LFA indices. Grazing pressure had no direct effects on the LFA indices but had an indirect negative effect on them by affecting vegetation structure. The LFA indices were positively and negatively correlated with soil organic carbon and sand contents, respectively, suggesting that these indices are useful proxies of soil functional processes in Patagonian rangelands. Our findings indicate that aridity and overgrazing have convergent effects on the structure and functioning of ecosystems, as both promoted reductions in species richness, the cover of palatable grasses and soil functioning. Rangeland management activities should aim to enhance species richness and the cover of palatable grasses, as these actions could contribute to offset adverse effects of ongoing increases in aridity on drylands. Copyright © 2017 John Wiley & Sons, Ltd.Fil: Gaitán, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Suelos; ArgentinaFil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Aguiar, Martin Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; ArgentinaFil: Buono, Gustavo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Nakamatsu, Viviana. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Ciari, Georgina. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Salomone, Jorge M.. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Massara, Virginia. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: García Martínez, Guillermo Carlos. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Maestre, Fernando T.. Universidad Rey Juan Carlos; EspañaJohn Wiley & Sons Ltd2018-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/51495Gaitán, Juan José; Bran, Donaldo Eduardo; Oliva, Gabriel Esteban; Aguiar, Martin Roberto; Buono, Gustavo Gabriel; et al.; Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands; John Wiley & Sons Ltd; Land Degradation & Development; 29; 2; 2-2018; 210-2181085-3278CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/ldr.2694info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/ldr.2694info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:22:20Zoai:ri.conicet.gov.ar:11336/51495instacron: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:34982025-10-15 14:22:21.185CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands
title Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands
spellingShingle Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands
Gaitán, Juan José
Desertification
Drylands
Grass-Shrub Balance
Landscape Function Analysis
Species Richness
title_short Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands
title_full Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands
title_fullStr Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands
title_full_unstemmed Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands
title_sort Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands
dc.creator.none.fl_str_mv Gaitán, Juan José
Bran, Donaldo Eduardo
Oliva, Gabriel Esteban
Aguiar, Martin Roberto
Buono, Gustavo Gabriel
Ferrante, Daniela
Nakamatsu, Viviana
Ciari, Georgina
Salomone, Jorge M.
Massara, Virginia
García Martínez, Guillermo Carlos
Maestre, Fernando T.
author Gaitán, Juan José
author_facet Gaitán, Juan José
Bran, Donaldo Eduardo
Oliva, Gabriel Esteban
Aguiar, Martin Roberto
Buono, Gustavo Gabriel
Ferrante, Daniela
Nakamatsu, Viviana
Ciari, Georgina
Salomone, Jorge M.
Massara, Virginia
García Martínez, Guillermo Carlos
Maestre, Fernando T.
author_role author
author2 Bran, Donaldo Eduardo
Oliva, Gabriel Esteban
Aguiar, Martin Roberto
Buono, Gustavo Gabriel
Ferrante, Daniela
Nakamatsu, Viviana
Ciari, Georgina
Salomone, Jorge M.
Massara, Virginia
García Martínez, Guillermo Carlos
Maestre, Fernando T.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Desertification
Drylands
Grass-Shrub Balance
Landscape Function Analysis
Species Richness
topic Desertification
Drylands
Grass-Shrub Balance
Landscape Function Analysis
Species Richness
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Over 65% of drylands are used for grazing of managed livestock. Understanding what drives grazing effects on the structure and functioning of rangelands is critical for achieving their sustainability. We studied a network of 239 sites across Patagonian rangelands (Argentina), which constitute one of the world's largest rangeland area. We aimed to (i) evaluate how aridity and grazing affect ecosystem structure and functioning and (ii) test the usefulness of the landscape function analysis (LFA) indices (stability, infiltration and nutrient cycling) as surrogates of soil functioning. Aridity decreased species richness and the cover of palatable grasses but increased the cover of palatable shrubs. Grazing pressure negatively impacted the cover of palatable grasses and species richness but did not affect the cover of shrubs. Aridity had direct and indirect negative relationships with the LFA indices. Grazing pressure had no direct effects on the LFA indices but had an indirect negative effect on them by affecting vegetation structure. The LFA indices were positively and negatively correlated with soil organic carbon and sand contents, respectively, suggesting that these indices are useful proxies of soil functional processes in Patagonian rangelands. Our findings indicate that aridity and overgrazing have convergent effects on the structure and functioning of ecosystems, as both promoted reductions in species richness, the cover of palatable grasses and soil functioning. Rangeland management activities should aim to enhance species richness and the cover of palatable grasses, as these actions could contribute to offset adverse effects of ongoing increases in aridity on drylands. Copyright © 2017 John Wiley & Sons, Ltd.
Fil: Gaitán, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Suelos; Argentina
Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Aguiar, Martin Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. ; Argentina
Fil: Buono, Gustavo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Nakamatsu, Viviana. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Ciari, Georgina. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Salomone, Jorge M.. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Massara, Virginia. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: García Martínez, Guillermo Carlos. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Maestre, Fernando T.. Universidad Rey Juan Carlos; España
description Over 65% of drylands are used for grazing of managed livestock. Understanding what drives grazing effects on the structure and functioning of rangelands is critical for achieving their sustainability. We studied a network of 239 sites across Patagonian rangelands (Argentina), which constitute one of the world's largest rangeland area. We aimed to (i) evaluate how aridity and grazing affect ecosystem structure and functioning and (ii) test the usefulness of the landscape function analysis (LFA) indices (stability, infiltration and nutrient cycling) as surrogates of soil functioning. Aridity decreased species richness and the cover of palatable grasses but increased the cover of palatable shrubs. Grazing pressure negatively impacted the cover of palatable grasses and species richness but did not affect the cover of shrubs. Aridity had direct and indirect negative relationships with the LFA indices. Grazing pressure had no direct effects on the LFA indices but had an indirect negative effect on them by affecting vegetation structure. The LFA indices were positively and negatively correlated with soil organic carbon and sand contents, respectively, suggesting that these indices are useful proxies of soil functional processes in Patagonian rangelands. Our findings indicate that aridity and overgrazing have convergent effects on the structure and functioning of ecosystems, as both promoted reductions in species richness, the cover of palatable grasses and soil functioning. Rangeland management activities should aim to enhance species richness and the cover of palatable grasses, as these actions could contribute to offset adverse effects of ongoing increases in aridity on drylands. Copyright © 2017 John Wiley & Sons, Ltd.
publishDate 2018
dc.date.none.fl_str_mv 2018-02
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/11336/51495
Gaitán, Juan José; Bran, Donaldo Eduardo; Oliva, Gabriel Esteban; Aguiar, Martin Roberto; Buono, Gustavo Gabriel; et al.; Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands; John Wiley & Sons Ltd; Land Degradation & Development; 29; 2; 2-2018; 210-218
1085-3278
CONICET Digital
CONICET
url http://hdl.handle.net/11336/51495
identifier_str_mv Gaitán, Juan José; Bran, Donaldo Eduardo; Oliva, Gabriel Esteban; Aguiar, Martin Roberto; Buono, Gustavo Gabriel; et al.; Aridity and Overgrazing Have Convergent Effects on Ecosystem Structure and Functioning in Patagonian Rangelands; John Wiley & Sons Ltd; Land Degradation & Development; 29; 2; 2-2018; 210-218
1085-3278
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/ldr.2694
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/ldr.2694
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
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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