Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events

Autores
Amoroso, Mariano Martin; Suarez, Maria Laura; Daniels, Lori D.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This research examines the regeneration dynamics of . Nothofagus dombeyi and . Austrocedrus chilensis in . A. chilensis-dominated forests growing near the eastern limit of . N. dombeyi where precipitation is limiting. In these forests the widespread decline and mortality of overstory . A. chilensis trees, known as '. mal del ciprés' (cypress sickness), generates large canopy gaps in which new individuals establish. Our objective was to study the population dynamics of . N. dombeyi and . A. chilensis in these forests to investigate the influences of overstory tree death and climatic variation on establishment. We sampled 6 symptomatic . A. chilensis stands and used dendrochronological techniques to reconstruct basal area development and regeneration establishment over time. Bivariate event analysis was performed to examine the temporal relationships between tree establishment and mortality events and climatic variation. Overstory . A. chilensis trees established as post-fire cohorts, with subsequent establishment of . A. chilensis and . N. dombeyi during the past 50-60 years. Regeneration in the past two decades was primarily . N. dombeyi. The establishment of both . A. chilensis and . N. dombeyi was synchronous with overstory tree mortality events, but it was more consistent among stands and prolonged for . N. dombeyi. Establishment of . A. chilensis was not associated with climatic events but . N. dombeyi establishment was synchronous with droughts, possibly related to climate-driven mortality creating canopy gaps or reducing competition within gaps. We have demonstrated that . N. dombeyi has the ability to establish in post-fire . A. chilensis-dominated forests resulting in mixed-species, uneven-aged forests. The ongoing increase in the abundance of . N. dombeyi relative to . A. chilensis represents a shift in composition and increased complexity in stand structure driven by '. mal del ciprés' and climatic variation. © 2011 Istituto Italiano di Dendrocronologia.
Fil: Amoroso, Mariano Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Suarez, Maria Laura. 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 Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Daniels, Lori D.. University of British Columbia; Canadá
Materia
Climate
Patagonia
Regeneration
Stand Dynamics
Tree Death
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:11336/71398
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic eventsAmoroso, Mariano MartinSuarez, Maria LauraDaniels, Lori D.ClimatePatagoniaRegenerationStand DynamicsTree Deathhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This research examines the regeneration dynamics of . Nothofagus dombeyi and . Austrocedrus chilensis in . A. chilensis-dominated forests growing near the eastern limit of . N. dombeyi where precipitation is limiting. In these forests the widespread decline and mortality of overstory . A. chilensis trees, known as '. mal del ciprés' (cypress sickness), generates large canopy gaps in which new individuals establish. Our objective was to study the population dynamics of . N. dombeyi and . A. chilensis in these forests to investigate the influences of overstory tree death and climatic variation on establishment. We sampled 6 symptomatic . A. chilensis stands and used dendrochronological techniques to reconstruct basal area development and regeneration establishment over time. Bivariate event analysis was performed to examine the temporal relationships between tree establishment and mortality events and climatic variation. Overstory . A. chilensis trees established as post-fire cohorts, with subsequent establishment of . A. chilensis and . N. dombeyi during the past 50-60 years. Regeneration in the past two decades was primarily . N. dombeyi. The establishment of both . A. chilensis and . N. dombeyi was synchronous with overstory tree mortality events, but it was more consistent among stands and prolonged for . N. dombeyi. Establishment of . A. chilensis was not associated with climatic events but . N. dombeyi establishment was synchronous with droughts, possibly related to climate-driven mortality creating canopy gaps or reducing competition within gaps. We have demonstrated that . N. dombeyi has the ability to establish in post-fire . A. chilensis-dominated forests resulting in mixed-species, uneven-aged forests. The ongoing increase in the abundance of . N. dombeyi relative to . A. chilensis represents a shift in composition and increased complexity in stand structure driven by '. mal del ciprés' and climatic variation. © 2011 Istituto Italiano di Dendrocronologia.Fil: Amoroso, Mariano Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Suarez, Maria Laura. 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 Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Daniels, Lori D.. University of British Columbia; CanadáElsevier Gmbh, Urban & Fischer Verlag2012-03info: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/11336/71398Amoroso, Mariano Martin; Suarez, Maria Laura; Daniels, Lori D.; Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events; Elsevier Gmbh, Urban & Fischer Verlag; Dendrochronologia; 30; 2; 3-2012; 105-1121125-7865CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1125786511000774info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dendro.2010.12.005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:20:47Zoai:ri.conicet.gov.ar:11336/71398instacron: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 10:20:47.494CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events
title Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events
spellingShingle Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events
Amoroso, Mariano Martin
Climate
Patagonia
Regeneration
Stand Dynamics
Tree Death
title_short Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events
title_full Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events
title_fullStr Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events
title_full_unstemmed Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events
title_sort Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events
dc.creator.none.fl_str_mv Amoroso, Mariano Martin
Suarez, Maria Laura
Daniels, Lori D.
author Amoroso, Mariano Martin
author_facet Amoroso, Mariano Martin
Suarez, Maria Laura
Daniels, Lori D.
author_role author
author2 Suarez, Maria Laura
Daniels, Lori D.
author2_role author
author
dc.subject.none.fl_str_mv Climate
Patagonia
Regeneration
Stand Dynamics
Tree Death
topic Climate
Patagonia
Regeneration
Stand Dynamics
Tree Death
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This research examines the regeneration dynamics of . Nothofagus dombeyi and . Austrocedrus chilensis in . A. chilensis-dominated forests growing near the eastern limit of . N. dombeyi where precipitation is limiting. In these forests the widespread decline and mortality of overstory . A. chilensis trees, known as '. mal del ciprés' (cypress sickness), generates large canopy gaps in which new individuals establish. Our objective was to study the population dynamics of . N. dombeyi and . A. chilensis in these forests to investigate the influences of overstory tree death and climatic variation on establishment. We sampled 6 symptomatic . A. chilensis stands and used dendrochronological techniques to reconstruct basal area development and regeneration establishment over time. Bivariate event analysis was performed to examine the temporal relationships between tree establishment and mortality events and climatic variation. Overstory . A. chilensis trees established as post-fire cohorts, with subsequent establishment of . A. chilensis and . N. dombeyi during the past 50-60 years. Regeneration in the past two decades was primarily . N. dombeyi. The establishment of both . A. chilensis and . N. dombeyi was synchronous with overstory tree mortality events, but it was more consistent among stands and prolonged for . N. dombeyi. Establishment of . A. chilensis was not associated with climatic events but . N. dombeyi establishment was synchronous with droughts, possibly related to climate-driven mortality creating canopy gaps or reducing competition within gaps. We have demonstrated that . N. dombeyi has the ability to establish in post-fire . A. chilensis-dominated forests resulting in mixed-species, uneven-aged forests. The ongoing increase in the abundance of . N. dombeyi relative to . A. chilensis represents a shift in composition and increased complexity in stand structure driven by '. mal del ciprés' and climatic variation. © 2011 Istituto Italiano di Dendrocronologia.
Fil: Amoroso, Mariano Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Suarez, Maria Laura. 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 Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Daniels, Lori D.. University of British Columbia; Canadá
description This research examines the regeneration dynamics of . Nothofagus dombeyi and . Austrocedrus chilensis in . A. chilensis-dominated forests growing near the eastern limit of . N. dombeyi where precipitation is limiting. In these forests the widespread decline and mortality of overstory . A. chilensis trees, known as '. mal del ciprés' (cypress sickness), generates large canopy gaps in which new individuals establish. Our objective was to study the population dynamics of . N. dombeyi and . A. chilensis in these forests to investigate the influences of overstory tree death and climatic variation on establishment. We sampled 6 symptomatic . A. chilensis stands and used dendrochronological techniques to reconstruct basal area development and regeneration establishment over time. Bivariate event analysis was performed to examine the temporal relationships between tree establishment and mortality events and climatic variation. Overstory . A. chilensis trees established as post-fire cohorts, with subsequent establishment of . A. chilensis and . N. dombeyi during the past 50-60 years. Regeneration in the past two decades was primarily . N. dombeyi. The establishment of both . A. chilensis and . N. dombeyi was synchronous with overstory tree mortality events, but it was more consistent among stands and prolonged for . N. dombeyi. Establishment of . A. chilensis was not associated with climatic events but . N. dombeyi establishment was synchronous with droughts, possibly related to climate-driven mortality creating canopy gaps or reducing competition within gaps. We have demonstrated that . N. dombeyi has the ability to establish in post-fire . A. chilensis-dominated forests resulting in mixed-species, uneven-aged forests. The ongoing increase in the abundance of . N. dombeyi relative to . A. chilensis represents a shift in composition and increased complexity in stand structure driven by '. mal del ciprés' and climatic variation. © 2011 Istituto Italiano di Dendrocronologia.
publishDate 2012
dc.date.none.fl_str_mv 2012-03
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/11336/71398
Amoroso, Mariano Martin; Suarez, Maria Laura; Daniels, Lori D.; Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events; Elsevier Gmbh, Urban & Fischer Verlag; Dendrochronologia; 30; 2; 3-2012; 105-112
1125-7865
CONICET Digital
CONICET
url http://hdl.handle.net/11336/71398
identifier_str_mv Amoroso, Mariano Martin; Suarez, Maria Laura; Daniels, Lori D.; Nothofagus dombeyi regeneration in declining Austrocedrus chilensis forests: Effects of overstory mortality and climatic events; Elsevier Gmbh, Urban & Fischer Verlag; Dendrochronologia; 30; 2; 3-2012; 105-112
1125-7865
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.sciencedirect.com/science/article/pii/S1125786511000774
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dendro.2010.12.005
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 Elsevier Gmbh, Urban & Fischer Verlag
publisher.none.fl_str_mv Elsevier Gmbh, Urban & Fischer Verlag
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 13.070432

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