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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/111042
Ver los metadatos del registro completo
id |
CONICETDig_093ec2fe6087edc3a5ee44d690b979b1 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/111042 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
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 |
_version_ |
1844613825374978048 |
score |
13.070432 |