Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia

Autores
Huertas Herrera, Alejandro; Baptiste Ballera, Brigitte L.G.; Toro Manríquez, Mónica del Rosario; Lencinas, María Vanessa; Martínez Pastur, Guillermo José; Huerta Ramírez, Hugoberto
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cattle grazing and fire are common types of management on natural ecosystems, generating several threats to the conservation of native vegetation (e.g., changes in species richness, cover, and abundance, mainly of bovine-palatable species). In this work, we analysed the response of the structure and composition of vegetation managed with different cattle stocking rates and fire in the savanna ecosystems of Colombia. The study was located in the eastern area of the Llanos region, where savannas were subjected to grazing and burning. Regarding grazing, we classified the area according to the cattle stocking rate (Bos indicus ~300 kg): NG = non-grazed, LS = low stocking rate (0.5 ind ha-1 yr-1), and HS = high stocking rate (1.0 ind ha-1 yr-1). Controlled artificial burning was applied in all the area at the beginning of the study, and surveys were conducted in the same plots at pre-burn (t0) and four post-burn times (t1, t2, t3, t4), at 15, 45, 75 and 105 days after burning. Vegetation composition (species list, life-form, palatability) and structure (bare soil and vascular plant ground covers, species height and richness) were recorded at each sampling. Data were compared through ANOVAs and multivariate analyses. We found 53 species in total: 26 in the pre-burn treatment and 44 in the post-burn treatments, detecting an increase of 18 species considering all treatments. Seven natives and two exotic species represented the dominant cover (>50%). LS and HS had the highest number of palatable species in t0 (seven species) compared with NG (two species), but this became similar after burning (14 species in NG, 12 in LS, and 11 in HS). ANOVAs and multivariate analyses showed that plant assemblages were significantly different according to the grazing treatment, and more homogeneous in pre-burn than in post-burn periods. Cattle grazing favored higher covers of dominant palatable species (e.g., Axonopus purpusii) compared with NG, but many native species with high palatability only recovered within the system after burning. In the context of the current management proposals, the search for new alternatives other than intensive cattle grazing and burning is needed to reconcile human production activities, international commitments against climate change and biodiversity conservation in the savanna landscapes.
Fil: Huertas Herrera, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Baptiste Ballera, Brigitte L.G.. Instituto de Investigación de Recursos Biológicos Alexander von Humboldt; Colombia
Fil: Toro Manríquez, Mónica del Rosario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Huerta Ramírez, Hugoberto. Fundación Horizonte Verde; Colombia
Materia
CONSERVATION
GRASSLANDS
LAND MANAGEMENT
LLANOS REGION
PLANT ASSEMBLAGES
TRADE-OFFS
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:11336/142272

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oai_identifier_str oai:ri.conicet.gov.ar:11336/142272
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of ColombiaHuertas Herrera, AlejandroBaptiste Ballera, Brigitte L.G.Toro Manríquez, Mónica del RosarioLencinas, María VanessaMartínez Pastur, Guillermo JoséHuerta Ramírez, HugobertoCONSERVATIONGRASSLANDSLAND MANAGEMENTLLANOS REGIONPLANT ASSEMBLAGESTRADE-OFFShttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Cattle grazing and fire are common types of management on natural ecosystems, generating several threats to the conservation of native vegetation (e.g., changes in species richness, cover, and abundance, mainly of bovine-palatable species). In this work, we analysed the response of the structure and composition of vegetation managed with different cattle stocking rates and fire in the savanna ecosystems of Colombia. The study was located in the eastern area of the Llanos region, where savannas were subjected to grazing and burning. Regarding grazing, we classified the area according to the cattle stocking rate (Bos indicus ~300 kg): NG = non-grazed, LS = low stocking rate (0.5 ind ha-1 yr-1), and HS = high stocking rate (1.0 ind ha-1 yr-1). Controlled artificial burning was applied in all the area at the beginning of the study, and surveys were conducted in the same plots at pre-burn (t0) and four post-burn times (t1, t2, t3, t4), at 15, 45, 75 and 105 days after burning. Vegetation composition (species list, life-form, palatability) and structure (bare soil and vascular plant ground covers, species height and richness) were recorded at each sampling. Data were compared through ANOVAs and multivariate analyses. We found 53 species in total: 26 in the pre-burn treatment and 44 in the post-burn treatments, detecting an increase of 18 species considering all treatments. Seven natives and two exotic species represented the dominant cover (>50%). LS and HS had the highest number of palatable species in t0 (seven species) compared with NG (two species), but this became similar after burning (14 species in NG, 12 in LS, and 11 in HS). ANOVAs and multivariate analyses showed that plant assemblages were significantly different according to the grazing treatment, and more homogeneous in pre-burn than in post-burn periods. Cattle grazing favored higher covers of dominant palatable species (e.g., Axonopus purpusii) compared with NG, but many native species with high palatability only recovered within the system after burning. In the context of the current management proposals, the search for new alternatives other than intensive cattle grazing and burning is needed to reconcile human production activities, international commitments against climate change and biodiversity conservation in the savanna landscapes.Fil: Huertas Herrera, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Baptiste Ballera, Brigitte L.G.. Instituto de Investigación de Recursos Biológicos Alexander von Humboldt; ColombiaFil: Toro Manríquez, Mónica del Rosario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Huerta Ramírez, Hugoberto. Fundación Horizonte Verde; ColombiaMolecular Diversity Preservation International2021-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/142272Huertas Herrera, Alejandro; Baptiste Ballera, Brigitte L.G.; Toro Manríquez, Mónica del Rosario; Lencinas, María Vanessa; Martínez Pastur, Guillermo José; et al.; Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia; Molecular Diversity Preservation International; Land; 10; 2; 1-2021; 1-142073-445XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-445X/10/2/108info:eu-repo/semantics/altIdentifier/doi/10.3390/land10020108info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:33Zoai:ri.conicet.gov.ar:11336/142272instacron: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 09:50:33.708CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia
title Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia
spellingShingle Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia
Huertas Herrera, Alejandro
CONSERVATION
GRASSLANDS
LAND MANAGEMENT
LLANOS REGION
PLANT ASSEMBLAGES
TRADE-OFFS
title_short Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia
title_full Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia
title_fullStr Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia
title_full_unstemmed Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia
title_sort Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia
dc.creator.none.fl_str_mv Huertas Herrera, Alejandro
Baptiste Ballera, Brigitte L.G.
Toro Manríquez, Mónica del Rosario
Lencinas, María Vanessa
Martínez Pastur, Guillermo José
Huerta Ramírez, Hugoberto
author Huertas Herrera, Alejandro
author_facet Huertas Herrera, Alejandro
Baptiste Ballera, Brigitte L.G.
Toro Manríquez, Mónica del Rosario
Lencinas, María Vanessa
Martínez Pastur, Guillermo José
Huerta Ramírez, Hugoberto
author_role author
author2 Baptiste Ballera, Brigitte L.G.
Toro Manríquez, Mónica del Rosario
Lencinas, María Vanessa
Martínez Pastur, Guillermo José
Huerta Ramírez, Hugoberto
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CONSERVATION
GRASSLANDS
LAND MANAGEMENT
LLANOS REGION
PLANT ASSEMBLAGES
TRADE-OFFS
topic CONSERVATION
GRASSLANDS
LAND MANAGEMENT
LLANOS REGION
PLANT ASSEMBLAGES
TRADE-OFFS
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Cattle grazing and fire are common types of management on natural ecosystems, generating several threats to the conservation of native vegetation (e.g., changes in species richness, cover, and abundance, mainly of bovine-palatable species). In this work, we analysed the response of the structure and composition of vegetation managed with different cattle stocking rates and fire in the savanna ecosystems of Colombia. The study was located in the eastern area of the Llanos region, where savannas were subjected to grazing and burning. Regarding grazing, we classified the area according to the cattle stocking rate (Bos indicus ~300 kg): NG = non-grazed, LS = low stocking rate (0.5 ind ha-1 yr-1), and HS = high stocking rate (1.0 ind ha-1 yr-1). Controlled artificial burning was applied in all the area at the beginning of the study, and surveys were conducted in the same plots at pre-burn (t0) and four post-burn times (t1, t2, t3, t4), at 15, 45, 75 and 105 days after burning. Vegetation composition (species list, life-form, palatability) and structure (bare soil and vascular plant ground covers, species height and richness) were recorded at each sampling. Data were compared through ANOVAs and multivariate analyses. We found 53 species in total: 26 in the pre-burn treatment and 44 in the post-burn treatments, detecting an increase of 18 species considering all treatments. Seven natives and two exotic species represented the dominant cover (>50%). LS and HS had the highest number of palatable species in t0 (seven species) compared with NG (two species), but this became similar after burning (14 species in NG, 12 in LS, and 11 in HS). ANOVAs and multivariate analyses showed that plant assemblages were significantly different according to the grazing treatment, and more homogeneous in pre-burn than in post-burn periods. Cattle grazing favored higher covers of dominant palatable species (e.g., Axonopus purpusii) compared with NG, but many native species with high palatability only recovered within the system after burning. In the context of the current management proposals, the search for new alternatives other than intensive cattle grazing and burning is needed to reconcile human production activities, international commitments against climate change and biodiversity conservation in the savanna landscapes.
Fil: Huertas Herrera, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Baptiste Ballera, Brigitte L.G.. Instituto de Investigación de Recursos Biológicos Alexander von Humboldt; Colombia
Fil: Toro Manríquez, Mónica del Rosario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Lencinas, María Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Martínez Pastur, Guillermo José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Huerta Ramírez, Hugoberto. Fundación Horizonte Verde; Colombia
description Cattle grazing and fire are common types of management on natural ecosystems, generating several threats to the conservation of native vegetation (e.g., changes in species richness, cover, and abundance, mainly of bovine-palatable species). In this work, we analysed the response of the structure and composition of vegetation managed with different cattle stocking rates and fire in the savanna ecosystems of Colombia. The study was located in the eastern area of the Llanos region, where savannas were subjected to grazing and burning. Regarding grazing, we classified the area according to the cattle stocking rate (Bos indicus ~300 kg): NG = non-grazed, LS = low stocking rate (0.5 ind ha-1 yr-1), and HS = high stocking rate (1.0 ind ha-1 yr-1). Controlled artificial burning was applied in all the area at the beginning of the study, and surveys were conducted in the same plots at pre-burn (t0) and four post-burn times (t1, t2, t3, t4), at 15, 45, 75 and 105 days after burning. Vegetation composition (species list, life-form, palatability) and structure (bare soil and vascular plant ground covers, species height and richness) were recorded at each sampling. Data were compared through ANOVAs and multivariate analyses. We found 53 species in total: 26 in the pre-burn treatment and 44 in the post-burn treatments, detecting an increase of 18 species considering all treatments. Seven natives and two exotic species represented the dominant cover (>50%). LS and HS had the highest number of palatable species in t0 (seven species) compared with NG (two species), but this became similar after burning (14 species in NG, 12 in LS, and 11 in HS). ANOVAs and multivariate analyses showed that plant assemblages were significantly different according to the grazing treatment, and more homogeneous in pre-burn than in post-burn periods. Cattle grazing favored higher covers of dominant palatable species (e.g., Axonopus purpusii) compared with NG, but many native species with high palatability only recovered within the system after burning. In the context of the current management proposals, the search for new alternatives other than intensive cattle grazing and burning is needed to reconcile human production activities, international commitments against climate change and biodiversity conservation in the savanna landscapes.
publishDate 2021
dc.date.none.fl_str_mv 2021-01
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/11336/142272
Huertas Herrera, Alejandro; Baptiste Ballera, Brigitte L.G.; Toro Manríquez, Mónica del Rosario; Lencinas, María Vanessa; Martínez Pastur, Guillermo José; et al.; Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia; Molecular Diversity Preservation International; Land; 10; 2; 1-2021; 1-14
2073-445X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/142272
identifier_str_mv Huertas Herrera, Alejandro; Baptiste Ballera, Brigitte L.G.; Toro Manríquez, Mónica del Rosario; Lencinas, María Vanessa; Martínez Pastur, Guillermo José; et al.; Changes in vegetation of flooded savannas subject to cattle grazing and fire in plains of Colombia; Molecular Diversity Preservation International; Land; 10; 2; 1-2021; 1-14
2073-445X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-445X/10/2/108
info:eu-repo/semantics/altIdentifier/doi/10.3390/land10020108
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
application/pdf
dc.publisher.none.fl_str_mv Molecular Diversity Preservation International
publisher.none.fl_str_mv Molecular Diversity Preservation International
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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