Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns

Autores
Rodriguez Catón, Milagros Rocío; Villalba, Ricardo; Srur, Ana Marina; Luckman, Brian
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Forest decline, or the premature loss of forest health, is a complex process not yet fully understood. Although reductions of radial growth have previously been recorded for individuals affected by decline, studies describing the whole range of growth patterns from decline-affected stands are rare. We used principal component analysis to identify dominant patterns of radial growth in eleven Nothofagus pumilio stands in northern Patagonia that show external manifestations of forest dieback. At most sites, dominant growth patterns significantly different from the stand mean growth chronology were identified using either ring widths or basal area increments (BAIs). Due to the pervasive trend of decreasing ring width with increasing tree diameter, patterns of tree growth related to forest decline are better captured using BAIs. Three dominant patterns of growth were identified at most sites: (1) trees with the highest rates of growth during the first decades of the 20th century started a sustained reduction in radial growth in early 1940s reaching the lowest increments in the late 20th century; (2) trees with low growth over most of the 20th century substantially increased their growth rates in the 1960s concurrent with the growth decline in the previous group, and (3) trees with intermediate growth rates until mid-20th century showed a subsequent 20-30. year period with high rates of growth followed by a gradual reduction from the late 1980s to present. The onset of negative trends in radial growth associated with forest decline (patterns 1 and 3) occurs simultaneously at most stands. Contrary to expectations, large-dominant trees with the highest rates of growth seem to be the most severely affected by reductions in radial growth. These results are consistent with the concept of "decline disease stabilizing selection" where healthy dominant fast-growing trees in the forest are selectively affected by a combination of specifically detrimental factors. Dominant patterns at stand scale exhibit similar trends in radial growth between sites separated by more than 400. km in northern Patagonia suggesting that meso- to macro-scale environmental forcings modulate regional forest decline. Our results challenge traditional sampling designs used in dendroecological and dendroclimatological studies. Traditional sampling strategies, mostly targeted to dominant, climate-sensitive trees, will over emphasize the 20th century negative trends in Nothofagus stand growth associated with the largest stand trees. Only by including all individuals within a plot, will sampling provide consistent tree-growth estimates that represent the entire population. Additionally, as endogenous stand dynamics are not clearly reflected in mean growth estimates, dominant growth patterns within a stand should be identified to correctly assess dynamic processes such as forest decline.
Fil: Rodriguez Catón, Milagros Rocío. 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: Villalba, Ricardo. 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: Srur, Ana Marina. 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: Luckman, Brian. University of Western Ontario; Canadá
Materia
Forest Decline
Nothofagus Pumilio
Regional Growth Decline
Sampling Bias
Stand Growth Patterns
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:11336/59306

id CONICETDig_d6a9b8154c32133db0620cbf8cd0814f
oai_identifier_str oai:ri.conicet.gov.ar:11336/59306
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patternsRodriguez Catón, Milagros RocíoVillalba, RicardoSrur, Ana MarinaLuckman, BrianForest DeclineNothofagus PumilioRegional Growth DeclineSampling BiasStand Growth Patternshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Forest decline, or the premature loss of forest health, is a complex process not yet fully understood. Although reductions of radial growth have previously been recorded for individuals affected by decline, studies describing the whole range of growth patterns from decline-affected stands are rare. We used principal component analysis to identify dominant patterns of radial growth in eleven Nothofagus pumilio stands in northern Patagonia that show external manifestations of forest dieback. At most sites, dominant growth patterns significantly different from the stand mean growth chronology were identified using either ring widths or basal area increments (BAIs). Due to the pervasive trend of decreasing ring width with increasing tree diameter, patterns of tree growth related to forest decline are better captured using BAIs. Three dominant patterns of growth were identified at most sites: (1) trees with the highest rates of growth during the first decades of the 20th century started a sustained reduction in radial growth in early 1940s reaching the lowest increments in the late 20th century; (2) trees with low growth over most of the 20th century substantially increased their growth rates in the 1960s concurrent with the growth decline in the previous group, and (3) trees with intermediate growth rates until mid-20th century showed a subsequent 20-30. year period with high rates of growth followed by a gradual reduction from the late 1980s to present. The onset of negative trends in radial growth associated with forest decline (patterns 1 and 3) occurs simultaneously at most stands. Contrary to expectations, large-dominant trees with the highest rates of growth seem to be the most severely affected by reductions in radial growth. These results are consistent with the concept of "decline disease stabilizing selection" where healthy dominant fast-growing trees in the forest are selectively affected by a combination of specifically detrimental factors. Dominant patterns at stand scale exhibit similar trends in radial growth between sites separated by more than 400. km in northern Patagonia suggesting that meso- to macro-scale environmental forcings modulate regional forest decline. Our results challenge traditional sampling designs used in dendroecological and dendroclimatological studies. Traditional sampling strategies, mostly targeted to dominant, climate-sensitive trees, will over emphasize the 20th century negative trends in Nothofagus stand growth associated with the largest stand trees. Only by including all individuals within a plot, will sampling provide consistent tree-growth estimates that represent the entire population. Additionally, as endogenous stand dynamics are not clearly reflected in mean growth estimates, dominant growth patterns within a stand should be identified to correctly assess dynamic processes such as forest decline.Fil: Rodriguez Catón, Milagros Rocío. 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: Villalba, Ricardo. 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: Srur, Ana Marina. 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: Luckman, Brian. University of Western Ontario; CanadáElsevier Science2015-03info: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/11336/59306Rodriguez Catón, Milagros Rocío; Villalba, Ricardo; Srur, Ana Marina; Luckman, Brian; Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns; Elsevier Science; Forest Ecology and Management; 339; 3-2015; 44-560378-1127CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2014.12.004info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378112714007117info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:20:07Zoai:ri.conicet.gov.ar:11336/59306instacron: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 10:20:07.969CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns
title Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns
spellingShingle Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns
Rodriguez Catón, Milagros Rocío
Forest Decline
Nothofagus Pumilio
Regional Growth Decline
Sampling Bias
Stand Growth Patterns
title_short Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns
title_full Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns
title_fullStr Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns
title_full_unstemmed Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns
title_sort Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns
dc.creator.none.fl_str_mv Rodriguez Catón, Milagros Rocío
Villalba, Ricardo
Srur, Ana Marina
Luckman, Brian
author Rodriguez Catón, Milagros Rocío
author_facet Rodriguez Catón, Milagros Rocío
Villalba, Ricardo
Srur, Ana Marina
Luckman, Brian
author_role author
author2 Villalba, Ricardo
Srur, Ana Marina
Luckman, Brian
author2_role author
author
author
dc.subject.none.fl_str_mv Forest Decline
Nothofagus Pumilio
Regional Growth Decline
Sampling Bias
Stand Growth Patterns
topic Forest Decline
Nothofagus Pumilio
Regional Growth Decline
Sampling Bias
Stand Growth Patterns
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Forest decline, or the premature loss of forest health, is a complex process not yet fully understood. Although reductions of radial growth have previously been recorded for individuals affected by decline, studies describing the whole range of growth patterns from decline-affected stands are rare. We used principal component analysis to identify dominant patterns of radial growth in eleven Nothofagus pumilio stands in northern Patagonia that show external manifestations of forest dieback. At most sites, dominant growth patterns significantly different from the stand mean growth chronology were identified using either ring widths or basal area increments (BAIs). Due to the pervasive trend of decreasing ring width with increasing tree diameter, patterns of tree growth related to forest decline are better captured using BAIs. Three dominant patterns of growth were identified at most sites: (1) trees with the highest rates of growth during the first decades of the 20th century started a sustained reduction in radial growth in early 1940s reaching the lowest increments in the late 20th century; (2) trees with low growth over most of the 20th century substantially increased their growth rates in the 1960s concurrent with the growth decline in the previous group, and (3) trees with intermediate growth rates until mid-20th century showed a subsequent 20-30. year period with high rates of growth followed by a gradual reduction from the late 1980s to present. The onset of negative trends in radial growth associated with forest decline (patterns 1 and 3) occurs simultaneously at most stands. Contrary to expectations, large-dominant trees with the highest rates of growth seem to be the most severely affected by reductions in radial growth. These results are consistent with the concept of "decline disease stabilizing selection" where healthy dominant fast-growing trees in the forest are selectively affected by a combination of specifically detrimental factors. Dominant patterns at stand scale exhibit similar trends in radial growth between sites separated by more than 400. km in northern Patagonia suggesting that meso- to macro-scale environmental forcings modulate regional forest decline. Our results challenge traditional sampling designs used in dendroecological and dendroclimatological studies. Traditional sampling strategies, mostly targeted to dominant, climate-sensitive trees, will over emphasize the 20th century negative trends in Nothofagus stand growth associated with the largest stand trees. Only by including all individuals within a plot, will sampling provide consistent tree-growth estimates that represent the entire population. Additionally, as endogenous stand dynamics are not clearly reflected in mean growth estimates, dominant growth patterns within a stand should be identified to correctly assess dynamic processes such as forest decline.
Fil: Rodriguez Catón, Milagros Rocío. 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: Villalba, Ricardo. 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: Srur, Ana Marina. 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: Luckman, Brian. University of Western Ontario; Canadá
description Forest decline, or the premature loss of forest health, is a complex process not yet fully understood. Although reductions of radial growth have previously been recorded for individuals affected by decline, studies describing the whole range of growth patterns from decline-affected stands are rare. We used principal component analysis to identify dominant patterns of radial growth in eleven Nothofagus pumilio stands in northern Patagonia that show external manifestations of forest dieback. At most sites, dominant growth patterns significantly different from the stand mean growth chronology were identified using either ring widths or basal area increments (BAIs). Due to the pervasive trend of decreasing ring width with increasing tree diameter, patterns of tree growth related to forest decline are better captured using BAIs. Three dominant patterns of growth were identified at most sites: (1) trees with the highest rates of growth during the first decades of the 20th century started a sustained reduction in radial growth in early 1940s reaching the lowest increments in the late 20th century; (2) trees with low growth over most of the 20th century substantially increased their growth rates in the 1960s concurrent with the growth decline in the previous group, and (3) trees with intermediate growth rates until mid-20th century showed a subsequent 20-30. year period with high rates of growth followed by a gradual reduction from the late 1980s to present. The onset of negative trends in radial growth associated with forest decline (patterns 1 and 3) occurs simultaneously at most stands. Contrary to expectations, large-dominant trees with the highest rates of growth seem to be the most severely affected by reductions in radial growth. These results are consistent with the concept of "decline disease stabilizing selection" where healthy dominant fast-growing trees in the forest are selectively affected by a combination of specifically detrimental factors. Dominant patterns at stand scale exhibit similar trends in radial growth between sites separated by more than 400. km in northern Patagonia suggesting that meso- to macro-scale environmental forcings modulate regional forest decline. Our results challenge traditional sampling designs used in dendroecological and dendroclimatological studies. Traditional sampling strategies, mostly targeted to dominant, climate-sensitive trees, will over emphasize the 20th century negative trends in Nothofagus stand growth associated with the largest stand trees. Only by including all individuals within a plot, will sampling provide consistent tree-growth estimates that represent the entire population. Additionally, as endogenous stand dynamics are not clearly reflected in mean growth estimates, dominant growth patterns within a stand should be identified to correctly assess dynamic processes such as forest decline.
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/11336/59306
Rodriguez Catón, Milagros Rocío; Villalba, Ricardo; Srur, Ana Marina; Luckman, Brian; Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns; Elsevier Science; Forest Ecology and Management; 339; 3-2015; 44-56
0378-1127
CONICET Digital
CONICET
url http://hdl.handle.net/11336/59306
identifier_str_mv Rodriguez Catón, Milagros Rocío; Villalba, Ricardo; Srur, Ana Marina; Luckman, Brian; Long-term trends in radial growth associated with Nothofagus pumilio forest decline in Patagonia: Integrating local- into regional-scale patterns; Elsevier Science; Forest Ecology and Management; 339; 3-2015; 44-56
0378-1127
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2014.12.004
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0378112714007117
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 Science
publisher.none.fl_str_mv Elsevier Science
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
_version_ 1844614179093217280
score 13.070432