Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina

Autores
Peter, Guadalupe; Funk, Flavia Alejandra; Torres Robles, Silvia Susana
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In arid and semiarid lands around the world, vegetation is distributed in patches within a bare soil matrix. Vegetation in the North-east Patagonian Monte, Argentina is a shrubland steppe, and patches are dominated by shrubs, with grasses, forbs and cryptogams under their canopy. It was hypothesised that grazing increases patchiness; and fires and wind erosion homogenise the distribution of vegetation. It was predicted that there would be: (1) greater cover, specific frequency and richness of shrubs in grazed sites; (2) greater cover, specific frequency and richness of herbs and preferred grasses in ungrazed sites; and (3) a random pattern of distribution in burnt areas. Aerial cover of all perennial species was measured at six sites with different land-use histories: heavily grazed, medium grazed, ungrazed, long exclosure from grazing followed by grazing, burnt and then ungrazed, and burnt and then grazed. Species were grouped into five functional types: shrubs, subshrubs, preferred grasses, non-preferred grasses and forbs. The results showed significant differences in the cover of preferred and non-preferred grasses, forbs and total cover with previous grazing but there was no evidence of shrub encroachment. Species frequency and richness decreased especially with increased grazing intensity. The pattern of spatial distribution changed from aggregated in grazed sites to random in ungrazed and burnt sites for all plant functional types. At the population level, the cover of the grass, Poa ligularis, was greatest on ungrazed sites whereas the cover of the shrub, Chuquiraga erinacea, was greatest on burnt sites. It is concluded that, after applying a heterogeneous patchwork of disturbance, such as grazing, or with fire, followed by periods of rest, the plant diversity is increased.
Fil: Peter, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Centro Universidad Región Zona Atlántica; Argentina. Universidad Nacional de Río Negro. Sede Atlántica; Argentina
Fil: Funk, Flavia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Torres Robles, Silvia Susana. Universidad Nacional de Río Negro. Sede Atlántica; Argentina
Materia
DISTRIBUTION PATTERN
FIRE
GRAZING INTENSITY
PLANT FUNCTIONAL TYPES
RANGELAND COMMUNITIES
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:11336/111042

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network_name_str CONICET Digital (CONICET)
spelling Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, ArgentinaPeter, GuadalupeFunk, Flavia AlejandraTorres Robles, Silvia SusanaDISTRIBUTION PATTERNFIREGRAZING INTENSITYPLANT FUNCTIONAL TYPESRANGELAND COMMUNITIEShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1https://purl.org/becyt/ford/4.2https://purl.org/becyt/ford/4https://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In arid and semiarid lands around the world, vegetation is distributed in patches within a bare soil matrix. Vegetation in the North-east Patagonian Monte, Argentina is a shrubland steppe, and patches are dominated by shrubs, with grasses, forbs and cryptogams under their canopy. It was hypothesised that grazing increases patchiness; and fires and wind erosion homogenise the distribution of vegetation. It was predicted that there would be: (1) greater cover, specific frequency and richness of shrubs in grazed sites; (2) greater cover, specific frequency and richness of herbs and preferred grasses in ungrazed sites; and (3) a random pattern of distribution in burnt areas. Aerial cover of all perennial species was measured at six sites with different land-use histories: heavily grazed, medium grazed, ungrazed, long exclosure from grazing followed by grazing, burnt and then ungrazed, and burnt and then grazed. Species were grouped into five functional types: shrubs, subshrubs, preferred grasses, non-preferred grasses and forbs. The results showed significant differences in the cover of preferred and non-preferred grasses, forbs and total cover with previous grazing but there was no evidence of shrub encroachment. Species frequency and richness decreased especially with increased grazing intensity. The pattern of spatial distribution changed from aggregated in grazed sites to random in ungrazed and burnt sites for all plant functional types. At the population level, the cover of the grass, Poa ligularis, was greatest on ungrazed sites whereas the cover of the shrub, Chuquiraga erinacea, was greatest on burnt sites. It is concluded that, after applying a heterogeneous patchwork of disturbance, such as grazing, or with fire, followed by periods of rest, the plant diversity is increased.Fil: Peter, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Centro Universidad Región Zona Atlántica; Argentina. Universidad Nacional de Río Negro. Sede Atlántica; ArgentinaFil: Funk, Flavia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaFil: Torres Robles, Silvia Susana. Universidad Nacional de Río Negro. Sede Atlántica; ArgentinaAustralian Rangeland Society2013-06info: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/11336/111042Peter, Guadalupe; Funk, Flavia Alejandra; Torres Robles, Silvia Susana; Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina; Australian Rangeland Society; Rangeland Journal; 35; 3; 6-2013; 273-2831036-9872CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/?paper=RJ12093info:eu-repo/semantics/altIdentifier/doi/10.1071/RJ12093info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:02:18Zoai:ri.conicet.gov.ar:11336/111042instacron: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 10:02:18.635CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina
title Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina
spellingShingle Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina
Peter, Guadalupe
DISTRIBUTION PATTERN
FIRE
GRAZING INTENSITY
PLANT FUNCTIONAL TYPES
RANGELAND COMMUNITIES
title_short Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina
title_full Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina
title_fullStr Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina
title_full_unstemmed Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina
title_sort Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina
dc.creator.none.fl_str_mv Peter, Guadalupe
Funk, Flavia Alejandra
Torres Robles, Silvia Susana
author Peter, Guadalupe
author_facet Peter, Guadalupe
Funk, Flavia Alejandra
Torres Robles, Silvia Susana
author_role author
author2 Funk, Flavia Alejandra
Torres Robles, Silvia Susana
author2_role author
author
dc.subject.none.fl_str_mv DISTRIBUTION PATTERN
FIRE
GRAZING INTENSITY
PLANT FUNCTIONAL TYPES
RANGELAND COMMUNITIES
topic DISTRIBUTION PATTERN
FIRE
GRAZING INTENSITY
PLANT FUNCTIONAL TYPES
RANGELAND COMMUNITIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/4.2
https://purl.org/becyt/ford/4
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In arid and semiarid lands around the world, vegetation is distributed in patches within a bare soil matrix. Vegetation in the North-east Patagonian Monte, Argentina is a shrubland steppe, and patches are dominated by shrubs, with grasses, forbs and cryptogams under their canopy. It was hypothesised that grazing increases patchiness; and fires and wind erosion homogenise the distribution of vegetation. It was predicted that there would be: (1) greater cover, specific frequency and richness of shrubs in grazed sites; (2) greater cover, specific frequency and richness of herbs and preferred grasses in ungrazed sites; and (3) a random pattern of distribution in burnt areas. Aerial cover of all perennial species was measured at six sites with different land-use histories: heavily grazed, medium grazed, ungrazed, long exclosure from grazing followed by grazing, burnt and then ungrazed, and burnt and then grazed. Species were grouped into five functional types: shrubs, subshrubs, preferred grasses, non-preferred grasses and forbs. The results showed significant differences in the cover of preferred and non-preferred grasses, forbs and total cover with previous grazing but there was no evidence of shrub encroachment. Species frequency and richness decreased especially with increased grazing intensity. The pattern of spatial distribution changed from aggregated in grazed sites to random in ungrazed and burnt sites for all plant functional types. At the population level, the cover of the grass, Poa ligularis, was greatest on ungrazed sites whereas the cover of the shrub, Chuquiraga erinacea, was greatest on burnt sites. It is concluded that, after applying a heterogeneous patchwork of disturbance, such as grazing, or with fire, followed by periods of rest, the plant diversity is increased.
Fil: Peter, Guadalupe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Centro Universidad Región Zona Atlántica; Argentina. Universidad Nacional de Río Negro. Sede Atlántica; Argentina
Fil: Funk, Flavia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Torres Robles, Silvia Susana. Universidad Nacional de Río Negro. Sede Atlántica; Argentina
description In arid and semiarid lands around the world, vegetation is distributed in patches within a bare soil matrix. Vegetation in the North-east Patagonian Monte, Argentina is a shrubland steppe, and patches are dominated by shrubs, with grasses, forbs and cryptogams under their canopy. It was hypothesised that grazing increases patchiness; and fires and wind erosion homogenise the distribution of vegetation. It was predicted that there would be: (1) greater cover, specific frequency and richness of shrubs in grazed sites; (2) greater cover, specific frequency and richness of herbs and preferred grasses in ungrazed sites; and (3) a random pattern of distribution in burnt areas. Aerial cover of all perennial species was measured at six sites with different land-use histories: heavily grazed, medium grazed, ungrazed, long exclosure from grazing followed by grazing, burnt and then ungrazed, and burnt and then grazed. Species were grouped into five functional types: shrubs, subshrubs, preferred grasses, non-preferred grasses and forbs. The results showed significant differences in the cover of preferred and non-preferred grasses, forbs and total cover with previous grazing but there was no evidence of shrub encroachment. Species frequency and richness decreased especially with increased grazing intensity. The pattern of spatial distribution changed from aggregated in grazed sites to random in ungrazed and burnt sites for all plant functional types. At the population level, the cover of the grass, Poa ligularis, was greatest on ungrazed sites whereas the cover of the shrub, Chuquiraga erinacea, was greatest on burnt sites. It is concluded that, after applying a heterogeneous patchwork of disturbance, such as grazing, or with fire, followed by periods of rest, the plant diversity is increased.
publishDate 2013
dc.date.none.fl_str_mv 2013-06
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/11336/111042
Peter, Guadalupe; Funk, Flavia Alejandra; Torres Robles, Silvia Susana; Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina; Australian Rangeland Society; Rangeland Journal; 35; 3; 6-2013; 273-283
1036-9872
CONICET Digital
CONICET
url http://hdl.handle.net/11336/111042
identifier_str_mv Peter, Guadalupe; Funk, Flavia Alejandra; Torres Robles, Silvia Susana; Responses of vegetation to different land-use histories involving grazing and fire in the North-east Patagonian Monte, Argentina; Australian Rangeland Society; Rangeland Journal; 35; 3; 6-2013; 273-283
1036-9872
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/?paper=RJ12093
info:eu-repo/semantics/altIdentifier/doi/10.1071/RJ12093
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 Australian Rangeland Society
publisher.none.fl_str_mv Australian Rangeland Society
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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