Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock

Autores
Jaureguiberry, Pedro; Diaz, Sandra Myrna
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Plant species of the Chaco seasonally dry forestof central Argentina have presumably been under a lowevolutionary pressure to develop specialized fire-responsetraits, such as heat-stimulated germination. Nevertheless,other historical factors such as seasonal drought and/orendozoochorus dispersal could have led some species todevelop heat-tolerant seeds. Therefore, heat-tolerant germinationshould be more common than heat-stimulatedor heat-sensitive germination. To test this, we exposedseeds of 26 dominant species from the Chaco region to abroad range of experimental heat treatments and incubatedthem for 30 days at 25 °C and 12 h photoperiod. Wethen scored the percent germination and classified themas heat-stimulated, heat-tolerant or heat-sensitive basedon their germination following heat treatments relative tocontrol. Seventeen species showed heat-tolerant germination,including all native graminoids. Seven species showedheat-stimulated germination, under the less-intense heattreatments. Only two species showed heat-sensitive germination.Endozoochory had no influence on germinationresponses. We suggest that, unlike Mediterranean-climateecosystems, fire was not a major evolutionary force in thedevelopment of Chaco forests, and our results provide greater understanding of the potential response of Chacoplant communities in the face of increasingly frequent fires
Fil: Jaureguiberry, Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Diaz, Sandra Myrna. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Materia
Exaptation
Fire Adaptations
Fire History
Plant Regeneration Strategies
Seed Dormancy And Germination
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:11336/15817
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shockJaureguiberry, PedroDiaz, Sandra MyrnaExaptationFire AdaptationsFire HistoryPlant Regeneration StrategiesSeed Dormancy And Germinationhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Plant species of the Chaco seasonally dry forestof central Argentina have presumably been under a lowevolutionary pressure to develop specialized fire-responsetraits, such as heat-stimulated germination. Nevertheless,other historical factors such as seasonal drought and/orendozoochorus dispersal could have led some species todevelop heat-tolerant seeds. Therefore, heat-tolerant germinationshould be more common than heat-stimulatedor heat-sensitive germination. To test this, we exposedseeds of 26 dominant species from the Chaco region to abroad range of experimental heat treatments and incubatedthem for 30 days at 25 °C and 12 h photoperiod. Wethen scored the percent germination and classified themas heat-stimulated, heat-tolerant or heat-sensitive basedon their germination following heat treatments relative tocontrol. Seventeen species showed heat-tolerant germination,including all native graminoids. Seven species showedheat-stimulated germination, under the less-intense heattreatments. Only two species showed heat-sensitive germination.Endozoochory had no influence on germinationresponses. We suggest that, unlike Mediterranean-climateecosystems, fire was not a major evolutionary force in thedevelopment of Chaco forests, and our results provide greater understanding of the potential response of Chacoplant communities in the face of increasingly frequent firesFil: Jaureguiberry, Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Diaz, Sandra Myrna. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaSpringer2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/15817Jaureguiberry, Pedro; Diaz, Sandra Myrna; Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock; Springer; Oecologia; 177; 3; 3-2015; 689-6990029-85491432-1939enginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00442-014-3161-xinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00442-014-3161-xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-11-12T09:58:15Zoai:ri.conicet.gov.ar:11336/15817instacron: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:34982025-11-12 09:58:16.067CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock
title Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock
spellingShingle Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock
Jaureguiberry, Pedro
Exaptation
Fire Adaptations
Fire History
Plant Regeneration Strategies
Seed Dormancy And Germination
title_short Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock
title_full Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock
title_fullStr Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock
title_full_unstemmed Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock
title_sort Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock
dc.creator.none.fl_str_mv Jaureguiberry, Pedro
Diaz, Sandra Myrna
author Jaureguiberry, Pedro
author_facet Jaureguiberry, Pedro
Diaz, Sandra Myrna
author_role author
author2 Diaz, Sandra Myrna
author2_role author
dc.subject.none.fl_str_mv Exaptation
Fire Adaptations
Fire History
Plant Regeneration Strategies
Seed Dormancy And Germination
topic Exaptation
Fire Adaptations
Fire History
Plant Regeneration Strategies
Seed Dormancy And Germination
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Plant species of the Chaco seasonally dry forestof central Argentina have presumably been under a lowevolutionary pressure to develop specialized fire-responsetraits, such as heat-stimulated germination. Nevertheless,other historical factors such as seasonal drought and/orendozoochorus dispersal could have led some species todevelop heat-tolerant seeds. Therefore, heat-tolerant germinationshould be more common than heat-stimulatedor heat-sensitive germination. To test this, we exposedseeds of 26 dominant species from the Chaco region to abroad range of experimental heat treatments and incubatedthem for 30 days at 25 °C and 12 h photoperiod. Wethen scored the percent germination and classified themas heat-stimulated, heat-tolerant or heat-sensitive basedon their germination following heat treatments relative tocontrol. Seventeen species showed heat-tolerant germination,including all native graminoids. Seven species showedheat-stimulated germination, under the less-intense heattreatments. Only two species showed heat-sensitive germination.Endozoochory had no influence on germinationresponses. We suggest that, unlike Mediterranean-climateecosystems, fire was not a major evolutionary force in thedevelopment of Chaco forests, and our results provide greater understanding of the potential response of Chacoplant communities in the face of increasingly frequent fires
Fil: Jaureguiberry, Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Diaz, Sandra Myrna. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
description Plant species of the Chaco seasonally dry forestof central Argentina have presumably been under a lowevolutionary pressure to develop specialized fire-responsetraits, such as heat-stimulated germination. Nevertheless,other historical factors such as seasonal drought and/orendozoochorus dispersal could have led some species todevelop heat-tolerant seeds. Therefore, heat-tolerant germinationshould be more common than heat-stimulatedor heat-sensitive germination. To test this, we exposedseeds of 26 dominant species from the Chaco region to abroad range of experimental heat treatments and incubatedthem for 30 days at 25 °C and 12 h photoperiod. Wethen scored the percent germination and classified themas heat-stimulated, heat-tolerant or heat-sensitive basedon their germination following heat treatments relative tocontrol. Seventeen species showed heat-tolerant germination,including all native graminoids. Seven species showedheat-stimulated germination, under the less-intense heattreatments. Only two species showed heat-sensitive germination.Endozoochory had no influence on germinationresponses. We suggest that, unlike Mediterranean-climateecosystems, fire was not a major evolutionary force in thedevelopment of Chaco forests, and our results provide greater understanding of the potential response of Chacoplant communities in the face of increasingly frequent fires
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/15817
Jaureguiberry, Pedro; Diaz, Sandra Myrna; Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock; Springer; Oecologia; 177; 3; 3-2015; 689-699
0029-8549
1432-1939
url http://hdl.handle.net/11336/15817
identifier_str_mv Jaureguiberry, Pedro; Diaz, Sandra Myrna; Post-burning regeneration of the Chaco seasonally dry forest: germination response of dominant species to experimental heat shock; Springer; Oecologia; 177; 3; 3-2015; 689-699
0029-8549
1432-1939
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00442-014-3161-x
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00442-014-3161-x
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 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 12.976206

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