Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest

Autores
Caccia, Fernando Daniel; Kitzberger, Thomas; Chaneton, Enrique Jose
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
1) Episodic mass flowering and subsequent die-off of bamboo understories may generate rare opportunities for tree regeneration by altering consumer–seedling interactions as much as by increasing light availability to seedlings. We hypothesized that bamboo dieback interacts with canopy neighbourhood composition in creating recruitment microsites for tree seedling species with varied shade tolerance and susceptibility to herbivory. 2) We conducted a 2-year experiment in a Patagonian mixed forest altered by extensive, but patchy dieback of the bamboo Chusquea culeou. Newly emerged seedlings of Nothofagus alpina (more shade-tolerant) and Nothofagus dombeyi (less shade-tolerant) were planted in conspecific and heterospecific canopy neighbourhoods, with either a flowered (dead) or non-flowered (live) bamboo understorey. Seedlings were placed inside and outside mesh cages to assess mortality from vertebrate or invertebrate consumers. 3) Vertebrate exclusion increased seedling survival regardless of bamboo condition. Seedling loss to invertebrates decreased with bamboo die-off, resulting in higher survival of N. alpina in dead than in live patches. In contrast, bamboo die-off increased N. dombeyi mortality by wilting, which counteracted the benefits of seedling release from consumers. Bamboo die-off increased light availability and enhanced seedling growth for both species. 4) Nothofagus alpina seedlings were less damaged or killed by invertebrates under heterospecific canopies than under conspecifics (associational resistance), whereas N. dombeyi performance was unaffected by neighbourhood composition. Bamboo die-off did not change seedling performance patterns observed across canopy neighbourhoods with live bamboo understories. 5) Synthesis. Gaps created by bamboo die-off can exert both positive and negative, species-specific effects on the likelihood of tree seedling establishment. We conclude that infrequent understorey disturbances coupled with canopy neighbourhood effects mediated by seedling herbivores may drive gap-phase succession within old-growth forests.
Fil: Caccia, Fernando Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Kitzberger, Thomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones En Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Reg.universidad Bariloche. Instituto de Investigaciones En Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina
Fil: Chaneton, Enrique Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Materia
Associational Effects
Disturbance
Herbivory
Recruitment
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:11336/17395

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network_name_str CONICET Digital (CONICET)
spelling Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forestCaccia, Fernando DanielKitzberger, ThomasChaneton, Enrique JoseAssociational EffectsDisturbanceHerbivoryRecruitmenthttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/11) Episodic mass flowering and subsequent die-off of bamboo understories may generate rare opportunities for tree regeneration by altering consumer–seedling interactions as much as by increasing light availability to seedlings. We hypothesized that bamboo dieback interacts with canopy neighbourhood composition in creating recruitment microsites for tree seedling species with varied shade tolerance and susceptibility to herbivory. 2) We conducted a 2-year experiment in a Patagonian mixed forest altered by extensive, but patchy dieback of the bamboo Chusquea culeou. Newly emerged seedlings of Nothofagus alpina (more shade-tolerant) and Nothofagus dombeyi (less shade-tolerant) were planted in conspecific and heterospecific canopy neighbourhoods, with either a flowered (dead) or non-flowered (live) bamboo understorey. Seedlings were placed inside and outside mesh cages to assess mortality from vertebrate or invertebrate consumers. 3) Vertebrate exclusion increased seedling survival regardless of bamboo condition. Seedling loss to invertebrates decreased with bamboo die-off, resulting in higher survival of N. alpina in dead than in live patches. In contrast, bamboo die-off increased N. dombeyi mortality by wilting, which counteracted the benefits of seedling release from consumers. Bamboo die-off increased light availability and enhanced seedling growth for both species. 4) Nothofagus alpina seedlings were less damaged or killed by invertebrates under heterospecific canopies than under conspecifics (associational resistance), whereas N. dombeyi performance was unaffected by neighbourhood composition. Bamboo die-off did not change seedling performance patterns observed across canopy neighbourhoods with live bamboo understories. 5) Synthesis. Gaps created by bamboo die-off can exert both positive and negative, species-specific effects on the likelihood of tree seedling establishment. We conclude that infrequent understorey disturbances coupled with canopy neighbourhood effects mediated by seedling herbivores may drive gap-phase succession within old-growth forests.Fil: Caccia, Fernando Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Kitzberger, Thomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones En Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Reg.universidad Bariloche. Instituto de Investigaciones En Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; ArgentinaFil: Chaneton, Enrique Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaWiley2015-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17395Caccia, Fernando Daniel; Kitzberger, Thomas; Chaneton, Enrique Jose; Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest; Wiley; Journal Of Ecology; 103; 1; 1-2015; 231-2420022-0477enginfo:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2745.12349info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/1365-2745.12349/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:19:42Zoai:ri.conicet.gov.ar:11336/17395instacron: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 10:19:43.197CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest
title Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest
spellingShingle Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest
Caccia, Fernando Daniel
Associational Effects
Disturbance
Herbivory
Recruitment
title_short Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest
title_full Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest
title_fullStr Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest
title_full_unstemmed Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest
title_sort Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest
dc.creator.none.fl_str_mv Caccia, Fernando Daniel
Kitzberger, Thomas
Chaneton, Enrique Jose
author Caccia, Fernando Daniel
author_facet Caccia, Fernando Daniel
Kitzberger, Thomas
Chaneton, Enrique Jose
author_role author
author2 Kitzberger, Thomas
Chaneton, Enrique Jose
author2_role author
author
dc.subject.none.fl_str_mv Associational Effects
Disturbance
Herbivory
Recruitment
topic Associational Effects
Disturbance
Herbivory
Recruitment
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 1) Episodic mass flowering and subsequent die-off of bamboo understories may generate rare opportunities for tree regeneration by altering consumer–seedling interactions as much as by increasing light availability to seedlings. We hypothesized that bamboo dieback interacts with canopy neighbourhood composition in creating recruitment microsites for tree seedling species with varied shade tolerance and susceptibility to herbivory. 2) We conducted a 2-year experiment in a Patagonian mixed forest altered by extensive, but patchy dieback of the bamboo Chusquea culeou. Newly emerged seedlings of Nothofagus alpina (more shade-tolerant) and Nothofagus dombeyi (less shade-tolerant) were planted in conspecific and heterospecific canopy neighbourhoods, with either a flowered (dead) or non-flowered (live) bamboo understorey. Seedlings were placed inside and outside mesh cages to assess mortality from vertebrate or invertebrate consumers. 3) Vertebrate exclusion increased seedling survival regardless of bamboo condition. Seedling loss to invertebrates decreased with bamboo die-off, resulting in higher survival of N. alpina in dead than in live patches. In contrast, bamboo die-off increased N. dombeyi mortality by wilting, which counteracted the benefits of seedling release from consumers. Bamboo die-off increased light availability and enhanced seedling growth for both species. 4) Nothofagus alpina seedlings were less damaged or killed by invertebrates under heterospecific canopies than under conspecifics (associational resistance), whereas N. dombeyi performance was unaffected by neighbourhood composition. Bamboo die-off did not change seedling performance patterns observed across canopy neighbourhoods with live bamboo understories. 5) Synthesis. Gaps created by bamboo die-off can exert both positive and negative, species-specific effects on the likelihood of tree seedling establishment. We conclude that infrequent understorey disturbances coupled with canopy neighbourhood effects mediated by seedling herbivores may drive gap-phase succession within old-growth forests.
Fil: Caccia, Fernando Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Kitzberger, Thomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones En Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Reg.universidad Bariloche. Instituto de Investigaciones En Biodiversidad y Medioambiente; Argentina. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Ecotono; Argentina
Fil: Chaneton, Enrique Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
description 1) Episodic mass flowering and subsequent die-off of bamboo understories may generate rare opportunities for tree regeneration by altering consumer–seedling interactions as much as by increasing light availability to seedlings. We hypothesized that bamboo dieback interacts with canopy neighbourhood composition in creating recruitment microsites for tree seedling species with varied shade tolerance and susceptibility to herbivory. 2) We conducted a 2-year experiment in a Patagonian mixed forest altered by extensive, but patchy dieback of the bamboo Chusquea culeou. Newly emerged seedlings of Nothofagus alpina (more shade-tolerant) and Nothofagus dombeyi (less shade-tolerant) were planted in conspecific and heterospecific canopy neighbourhoods, with either a flowered (dead) or non-flowered (live) bamboo understorey. Seedlings were placed inside and outside mesh cages to assess mortality from vertebrate or invertebrate consumers. 3) Vertebrate exclusion increased seedling survival regardless of bamboo condition. Seedling loss to invertebrates decreased with bamboo die-off, resulting in higher survival of N. alpina in dead than in live patches. In contrast, bamboo die-off increased N. dombeyi mortality by wilting, which counteracted the benefits of seedling release from consumers. Bamboo die-off increased light availability and enhanced seedling growth for both species. 4) Nothofagus alpina seedlings were less damaged or killed by invertebrates under heterospecific canopies than under conspecifics (associational resistance), whereas N. dombeyi performance was unaffected by neighbourhood composition. Bamboo die-off did not change seedling performance patterns observed across canopy neighbourhoods with live bamboo understories. 5) Synthesis. Gaps created by bamboo die-off can exert both positive and negative, species-specific effects on the likelihood of tree seedling establishment. We conclude that infrequent understorey disturbances coupled with canopy neighbourhood effects mediated by seedling herbivores may drive gap-phase succession within old-growth forests.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/17395
Caccia, Fernando Daniel; Kitzberger, Thomas; Chaneton, Enrique Jose; Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest; Wiley; Journal Of Ecology; 103; 1; 1-2015; 231-242
0022-0477
url http://hdl.handle.net/11336/17395
identifier_str_mv Caccia, Fernando Daniel; Kitzberger, Thomas; Chaneton, Enrique Jose; Episodic bamboo die-off, neighbourhood interactions, and tree seedling performance in a mixed Patagonian forest; Wiley; Journal Of Ecology; 103; 1; 1-2015; 231-242
0022-0477
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2745.12349
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/1365-2745.12349/abstract
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
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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