Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands

Autores
Blackhall, Melisa; Veblen, Thomas T.; Raffaele, Estela
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Question Could disturbance by fire and ungulate herbivory alter fire regimes by increasing flammability in shrublands and early-successional forests? Location Nahuel Huapi National Park, northwest Patagonia, Argentina. Methods We compared four characteristics that influence fuel flammability – fine fuel load, plant bulk density, percentage fine fuel, and percentage dead fine fuel – and the vertical distribution of live and dead fine fuel at recently burned (<15 yr) and unburned (>50 yr) sites, both in the presence and absence of cattle, for six resprouting species: non-palatable Lomatia hirsuta and Diostea juncea, moderately palatable Nothofagus antarctica and Schinus patagonicus, and highly palatable Maytenus boaria and Ribes magellanicum. Results Changes in flammability in response to recent fire, and to a lesser extent cattle browsing, were strongly dependent on species identity. Non-palatable L. hirsuta tended to increase in flammability following fire, whereas cattle did not affect its fuel properties. Nothofagus antarctica showed ambiguous responses: plants had reduced plant bulk density at recently burned sites, implying reduced flammability, but changes in percentage fine and dead fine fuel point to increasing flammability at burned sites with cattle. Diostea juncea and S. patagonicus showed increased plant bulk density at sites with cattle and increased percentage fine fuel in response to fire. Cattle browsing was the main driver of variability in flammability for highly palatable species, showing increased plant bulk density and percentage fine fuel in response to cattle. Fire had a strong effect on the vertical distribution of live and dead fine fuel, showing an increase of burnable biomass in response to recent fire. The reduction of vertical fuel continuity was extreme on highly palatable species. In contrast, moderately and non-palatable species, which are abundant under herbivore pressure, were characterized by vertically well-distributed fine fuel biomass in the presence of cattle. Conclusions Responses of flammability traits to fire and cattle depended on species identity, but the majority of the species studied showed higher fuel flammability at recently burned sites affected by cattle. Domestic livestock, by increasing the flammability of post-fire vegetation, may be key agents in altering fire regimes in forest–shrubland mosaics.
Fil: Blackhall, Melisa.
Fil: Veblen, Thomas T.. State University Of Colorado-boulder; Estados Unidos
Fil: Raffaele, Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina
Materia
Cattle Herbivory
Fire Ecology
Patagonian Shrublands
Resprouting Species
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:11336/11903

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network_name_str CONICET Digital (CONICET)
spelling Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublandsBlackhall, MelisaVeblen, Thomas T.Raffaele, EstelaCattle HerbivoryFire EcologyPatagonian ShrublandsResprouting Specieshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Question Could disturbance by fire and ungulate herbivory alter fire regimes by increasing flammability in shrublands and early-successional forests? Location Nahuel Huapi National Park, northwest Patagonia, Argentina. Methods We compared four characteristics that influence fuel flammability – fine fuel load, plant bulk density, percentage fine fuel, and percentage dead fine fuel – and the vertical distribution of live and dead fine fuel at recently burned (<15 yr) and unburned (>50 yr) sites, both in the presence and absence of cattle, for six resprouting species: non-palatable Lomatia hirsuta and Diostea juncea, moderately palatable Nothofagus antarctica and Schinus patagonicus, and highly palatable Maytenus boaria and Ribes magellanicum. Results Changes in flammability in response to recent fire, and to a lesser extent cattle browsing, were strongly dependent on species identity. Non-palatable L. hirsuta tended to increase in flammability following fire, whereas cattle did not affect its fuel properties. Nothofagus antarctica showed ambiguous responses: plants had reduced plant bulk density at recently burned sites, implying reduced flammability, but changes in percentage fine and dead fine fuel point to increasing flammability at burned sites with cattle. Diostea juncea and S. patagonicus showed increased plant bulk density at sites with cattle and increased percentage fine fuel in response to fire. Cattle browsing was the main driver of variability in flammability for highly palatable species, showing increased plant bulk density and percentage fine fuel in response to cattle. Fire had a strong effect on the vertical distribution of live and dead fine fuel, showing an increase of burnable biomass in response to recent fire. The reduction of vertical fuel continuity was extreme on highly palatable species. In contrast, moderately and non-palatable species, which are abundant under herbivore pressure, were characterized by vertically well-distributed fine fuel biomass in the presence of cattle. Conclusions Responses of flammability traits to fire and cattle depended on species identity, but the majority of the species studied showed higher fuel flammability at recently burned sites affected by cattle. Domestic livestock, by increasing the flammability of post-fire vegetation, may be key agents in altering fire regimes in forest–shrubland mosaics.Fil: Blackhall, Melisa.Fil: Veblen, Thomas T.. State University Of Colorado-boulder; Estados UnidosFil: Raffaele, Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; ArgentinaWiley2014-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11903Blackhall, Melisa; Veblen, Thomas T.; Raffaele, Estela; Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands; Wiley; Journal Of Vegetation Science; 26; 1; 9-2014; 123-1331100-9233enginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/jvs.12216/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1111/jvs.12216info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:32Zoai:ri.conicet.gov.ar:11336/11903instacron: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 09:45:32.717CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands
title Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands
spellingShingle Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands
Blackhall, Melisa
Cattle Herbivory
Fire Ecology
Patagonian Shrublands
Resprouting Species
title_short Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands
title_full Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands
title_fullStr Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands
title_full_unstemmed Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands
title_sort Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands
dc.creator.none.fl_str_mv Blackhall, Melisa
Veblen, Thomas T.
Raffaele, Estela
author Blackhall, Melisa
author_facet Blackhall, Melisa
Veblen, Thomas T.
Raffaele, Estela
author_role author
author2 Veblen, Thomas T.
Raffaele, Estela
author2_role author
author
dc.subject.none.fl_str_mv Cattle Herbivory
Fire Ecology
Patagonian Shrublands
Resprouting Species
topic Cattle Herbivory
Fire Ecology
Patagonian Shrublands
Resprouting Species
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Question Could disturbance by fire and ungulate herbivory alter fire regimes by increasing flammability in shrublands and early-successional forests? Location Nahuel Huapi National Park, northwest Patagonia, Argentina. Methods We compared four characteristics that influence fuel flammability – fine fuel load, plant bulk density, percentage fine fuel, and percentage dead fine fuel – and the vertical distribution of live and dead fine fuel at recently burned (<15 yr) and unburned (>50 yr) sites, both in the presence and absence of cattle, for six resprouting species: non-palatable Lomatia hirsuta and Diostea juncea, moderately palatable Nothofagus antarctica and Schinus patagonicus, and highly palatable Maytenus boaria and Ribes magellanicum. Results Changes in flammability in response to recent fire, and to a lesser extent cattle browsing, were strongly dependent on species identity. Non-palatable L. hirsuta tended to increase in flammability following fire, whereas cattle did not affect its fuel properties. Nothofagus antarctica showed ambiguous responses: plants had reduced plant bulk density at recently burned sites, implying reduced flammability, but changes in percentage fine and dead fine fuel point to increasing flammability at burned sites with cattle. Diostea juncea and S. patagonicus showed increased plant bulk density at sites with cattle and increased percentage fine fuel in response to fire. Cattle browsing was the main driver of variability in flammability for highly palatable species, showing increased plant bulk density and percentage fine fuel in response to cattle. Fire had a strong effect on the vertical distribution of live and dead fine fuel, showing an increase of burnable biomass in response to recent fire. The reduction of vertical fuel continuity was extreme on highly palatable species. In contrast, moderately and non-palatable species, which are abundant under herbivore pressure, were characterized by vertically well-distributed fine fuel biomass in the presence of cattle. Conclusions Responses of flammability traits to fire and cattle depended on species identity, but the majority of the species studied showed higher fuel flammability at recently burned sites affected by cattle. Domestic livestock, by increasing the flammability of post-fire vegetation, may be key agents in altering fire regimes in forest–shrubland mosaics.
Fil: Blackhall, Melisa.
Fil: Veblen, Thomas T.. State University Of Colorado-boulder; Estados Unidos
Fil: Raffaele, Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina
description Question Could disturbance by fire and ungulate herbivory alter fire regimes by increasing flammability in shrublands and early-successional forests? Location Nahuel Huapi National Park, northwest Patagonia, Argentina. Methods We compared four characteristics that influence fuel flammability – fine fuel load, plant bulk density, percentage fine fuel, and percentage dead fine fuel – and the vertical distribution of live and dead fine fuel at recently burned (<15 yr) and unburned (>50 yr) sites, both in the presence and absence of cattle, for six resprouting species: non-palatable Lomatia hirsuta and Diostea juncea, moderately palatable Nothofagus antarctica and Schinus patagonicus, and highly palatable Maytenus boaria and Ribes magellanicum. Results Changes in flammability in response to recent fire, and to a lesser extent cattle browsing, were strongly dependent on species identity. Non-palatable L. hirsuta tended to increase in flammability following fire, whereas cattle did not affect its fuel properties. Nothofagus antarctica showed ambiguous responses: plants had reduced plant bulk density at recently burned sites, implying reduced flammability, but changes in percentage fine and dead fine fuel point to increasing flammability at burned sites with cattle. Diostea juncea and S. patagonicus showed increased plant bulk density at sites with cattle and increased percentage fine fuel in response to fire. Cattle browsing was the main driver of variability in flammability for highly palatable species, showing increased plant bulk density and percentage fine fuel in response to cattle. Fire had a strong effect on the vertical distribution of live and dead fine fuel, showing an increase of burnable biomass in response to recent fire. The reduction of vertical fuel continuity was extreme on highly palatable species. In contrast, moderately and non-palatable species, which are abundant under herbivore pressure, were characterized by vertically well-distributed fine fuel biomass in the presence of cattle. Conclusions Responses of flammability traits to fire and cattle depended on species identity, but the majority of the species studied showed higher fuel flammability at recently burned sites affected by cattle. Domestic livestock, by increasing the flammability of post-fire vegetation, may be key agents in altering fire regimes in forest–shrubland mosaics.
publishDate 2014
dc.date.none.fl_str_mv 2014-09
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/11336/11903
Blackhall, Melisa; Veblen, Thomas T.; Raffaele, Estela; Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands; Wiley; Journal Of Vegetation Science; 26; 1; 9-2014; 123-133
1100-9233
url http://hdl.handle.net/11336/11903
identifier_str_mv Blackhall, Melisa; Veblen, Thomas T.; Raffaele, Estela; Recent fire and livestock browsing enhance plant-level fuel flammability in northwestern Patagonian shrublands; Wiley; Journal Of Vegetation Science; 26; 1; 9-2014; 123-133
1100-9233
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/jvs.12216/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1111/jvs.12216
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
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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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