Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina

Autores
Campanella, María Victoria; Bisigato, Alejandro Jorge; Rostagno, Cesar Mario
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Patagonian rangelands have been grazed by sheep since early twentieth century. However, there is still a degree of uncertainty regarding how production of grass and shrub species changes along a grazing gradient. The study was undertaken in Northeastern Patagonia, Argentina. The characteristic vegetation in the area is a mosaic of herbaceous steppe with shrubs (HSS) and shrub steppe (SS). Grazing intensity was estimated through sheep paths density. Individual plant production and plant density were used to determine grass and shrub production per unit area, in both plant communities over three years. Community production was obtained as the sum of grass and shrub components. Differences were explored in shrub and grass production among communities and years, and linear regressions between sheep paths density and the proportion of each plant community along the transect were performed. Mean community production was lower in SS than HSS; shrubs did not compensate for the decline in grass production in spite of the increase in shrub density. SS presented the highest community production in the most humid year, while HSS production peaks in the year of average precipitation. We found that as the number of sheep paths increases (i.e., higher grazing intensities), the SS community replaces HSS, resulting in a reduction of forage for sheep. The results showed that changes in vegetation structure as a result of grazing strongly influenced above-ground production. Results also indicate that the response of vegetation to changes in annual precipitation is community specific.
Fil: Campanella, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina
Fil: Bisigato, Alejandro Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina
Fil: Rostagno, Cesar Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina
Materia
Grass Production
Inter-Annual Precipitation
Shrub Encroachment
Shrub Production
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:11336/61534
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/61534
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Plant production along a grazing gradient in a semiarid Patagonian rangeland, ArgentinaCampanella, María VictoriaBisigato, Alejandro JorgeRostagno, Cesar MarioGrass ProductionInter-Annual PrecipitationShrub EncroachmentShrub Productionhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Patagonian rangelands have been grazed by sheep since early twentieth century. However, there is still a degree of uncertainty regarding how production of grass and shrub species changes along a grazing gradient. The study was undertaken in Northeastern Patagonia, Argentina. The characteristic vegetation in the area is a mosaic of herbaceous steppe with shrubs (HSS) and shrub steppe (SS). Grazing intensity was estimated through sheep paths density. Individual plant production and plant density were used to determine grass and shrub production per unit area, in both plant communities over three years. Community production was obtained as the sum of grass and shrub components. Differences were explored in shrub and grass production among communities and years, and linear regressions between sheep paths density and the proportion of each plant community along the transect were performed. Mean community production was lower in SS than HSS; shrubs did not compensate for the decline in grass production in spite of the increase in shrub density. SS presented the highest community production in the most humid year, while HSS production peaks in the year of average precipitation. We found that as the number of sheep paths increases (i.e., higher grazing intensities), the SS community replaces HSS, resulting in a reduction of forage for sheep. The results showed that changes in vegetation structure as a result of grazing strongly influenced above-ground production. Results also indicate that the response of vegetation to changes in annual precipitation is community specific.Fil: Campanella, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; ArgentinaFil: Bisigato, Alejandro Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; ArgentinaFil: Rostagno, Cesar Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; ArgentinaSpringer2016-12info: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/11336/61534Campanella, María Victoria; Bisigato, Alejandro Jorge; Rostagno, Cesar Mario; Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina; Springer; Plant Ecology; 217; 12; 12-2016; 1553-15621385-02371573-5052CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s11258-016-0668-8info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11258-016-0668-8info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:50:11Zoai:ri.conicet.gov.ar:11336/61534instacron: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:34982025-09-03 09:50:11.575CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina
title Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina
spellingShingle Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina
Campanella, María Victoria
Grass Production
Inter-Annual Precipitation
Shrub Encroachment
Shrub Production
title_short Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina
title_full Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina
title_fullStr Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina
title_full_unstemmed Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina
title_sort Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina
dc.creator.none.fl_str_mv Campanella, María Victoria
Bisigato, Alejandro Jorge
Rostagno, Cesar Mario
author Campanella, María Victoria
author_facet Campanella, María Victoria
Bisigato, Alejandro Jorge
Rostagno, Cesar Mario
author_role author
author2 Bisigato, Alejandro Jorge
Rostagno, Cesar Mario
author2_role author
author
dc.subject.none.fl_str_mv Grass Production
Inter-Annual Precipitation
Shrub Encroachment
Shrub Production
topic Grass Production
Inter-Annual Precipitation
Shrub Encroachment
Shrub Production
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Patagonian rangelands have been grazed by sheep since early twentieth century. However, there is still a degree of uncertainty regarding how production of grass and shrub species changes along a grazing gradient. The study was undertaken in Northeastern Patagonia, Argentina. The characteristic vegetation in the area is a mosaic of herbaceous steppe with shrubs (HSS) and shrub steppe (SS). Grazing intensity was estimated through sheep paths density. Individual plant production and plant density were used to determine grass and shrub production per unit area, in both plant communities over three years. Community production was obtained as the sum of grass and shrub components. Differences were explored in shrub and grass production among communities and years, and linear regressions between sheep paths density and the proportion of each plant community along the transect were performed. Mean community production was lower in SS than HSS; shrubs did not compensate for the decline in grass production in spite of the increase in shrub density. SS presented the highest community production in the most humid year, while HSS production peaks in the year of average precipitation. We found that as the number of sheep paths increases (i.e., higher grazing intensities), the SS community replaces HSS, resulting in a reduction of forage for sheep. The results showed that changes in vegetation structure as a result of grazing strongly influenced above-ground production. Results also indicate that the response of vegetation to changes in annual precipitation is community specific.
Fil: Campanella, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina
Fil: Bisigato, Alejandro Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina
Fil: Rostagno, Cesar Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia. Facultad de Ciencias Naturales. Sede Puerto Madryn; Argentina
description Patagonian rangelands have been grazed by sheep since early twentieth century. However, there is still a degree of uncertainty regarding how production of grass and shrub species changes along a grazing gradient. The study was undertaken in Northeastern Patagonia, Argentina. The characteristic vegetation in the area is a mosaic of herbaceous steppe with shrubs (HSS) and shrub steppe (SS). Grazing intensity was estimated through sheep paths density. Individual plant production and plant density were used to determine grass and shrub production per unit area, in both plant communities over three years. Community production was obtained as the sum of grass and shrub components. Differences were explored in shrub and grass production among communities and years, and linear regressions between sheep paths density and the proportion of each plant community along the transect were performed. Mean community production was lower in SS than HSS; shrubs did not compensate for the decline in grass production in spite of the increase in shrub density. SS presented the highest community production in the most humid year, while HSS production peaks in the year of average precipitation. We found that as the number of sheep paths increases (i.e., higher grazing intensities), the SS community replaces HSS, resulting in a reduction of forage for sheep. The results showed that changes in vegetation structure as a result of grazing strongly influenced above-ground production. Results also indicate that the response of vegetation to changes in annual precipitation is community specific.
publishDate 2016
dc.date.none.fl_str_mv 2016-12
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/11336/61534
Campanella, María Victoria; Bisigato, Alejandro Jorge; Rostagno, Cesar Mario; Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina; Springer; Plant Ecology; 217; 12; 12-2016; 1553-1562
1385-0237
1573-5052
CONICET Digital
CONICET
url http://hdl.handle.net/11336/61534
identifier_str_mv Campanella, María Victoria; Bisigato, Alejandro Jorge; Rostagno, Cesar Mario; Plant production along a grazing gradient in a semiarid Patagonian rangeland, Argentina; Springer; Plant Ecology; 217; 12; 12-2016; 1553-1562
1385-0237
1573-5052
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s11258-016-0668-8
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11258-016-0668-8
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
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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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score 13.13397

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