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dc.contributor.author
Soto-Rogel, Pamela  
dc.contributor.author
Aravena, Juan Carlos  
dc.contributor.author
Villalba, Ricardo  
dc.contributor.author
Bringas, Christian  
dc.contributor.author
Meier, Wolfgang Jens-Henrik  
dc.contributor.author
Gonzalez Reyes, Álvaro  
dc.contributor.author
Grießinger, Jussi  
dc.date.available
2023-07-10T19:01:33Z  
dc.date.issued
2022-05  
dc.identifier.citation
Soto-Rogel, Pamela; Aravena, Juan Carlos; Villalba, Ricardo; Bringas, Christian; Meier, Wolfgang Jens-Henrik; et al.; Two Nothofagus Species in Southernmost South America Are Recording Divergent Climate Signals; Multidisciplinary Digital Publishing Institute; Forests; 13; 5; 5-2022; 1-18  
dc.identifier.issn
1999-4907  
dc.identifier.uri
http://hdl.handle.net/11336/203075  
dc.description.abstract
Recent climatic trends, such as warming temperatures, decrease in rainfall, and extreme weather events (e.g., heatwaves), are negatively affecting the performance of forests. In northern Patagonia, such conditions have caused tree growth reduction, crown dieback, and massive die-back events. However, studies looking at these consequences in the southernmost temperate forest (Nothofagus betuloides and Nothofagus pumilio) are much scarcer, especially in southernmost South America (SSA). These forests are also under the influence of the positive phase of Antarctic Oscillation (AAO, also known as Southern Annular Mode, SAM) that has been associated with increasing trends in temperature, drought, and extreme events in the last decades. This study evaluated the growth patterns and the climatic response of eight new tree-ring chronologies from Nothofagus species located at the upper treeline along different environmental gradients in three study areas: Punta Arenas, Yendegaia National Park, and Navarino Island in SSA. The main modes of the ring-width index (RWI) variation were studied using principal component analysis (PCA). We found that PC1 has the higher loadings for sites with precipitation values over 600 mm/yr, PC2 with N. betuloides sites, and PC3 with higher loadings for sites with precipitation values below 600 mm/yr. Our best growth-climate relationships are between N. betuloides and AAO and the most northeastern site of N. pumilio with relative humidity (which coincides with heatwaves and extreme drought). The climatic signals imprinted in the southernmost forests are sensitive to climatic variability, the climate forcing AAO, and the effects of climate change in the last decades.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Multidisciplinary Digital Publishing Institute  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/  
dc.subject
ANTARCTIC OSCILLATION (AAO)  
dc.subject
CLIMATE  
dc.subject
NOTHOFAGUS BETULOIDES  
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NOTHOFAGUS PUMILIO  
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RING-WIDTH INDEX  
dc.subject.classification
Investigación Climatológica  
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Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Two Nothofagus Species in Southernmost South America Are Recording Divergent Climate Signals  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-07-05T15:21:02Z  
dc.journal.volume
13  
dc.journal.number
5  
dc.journal.pagination
1-18  
dc.journal.pais
Suiza  
dc.journal.ciudad
Basilea  
dc.description.fil
Fil: Soto-Rogel, Pamela. Universidad de Magallanes; Chile. Universitat Erlangen-Nuremberg; Alemania. Cape Horn International Center; Chile  
dc.description.fil
Fil: Aravena, Juan Carlos. Universidad de Magallanes; Chile. Cape Horn International Center; Chile  
dc.description.fil
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  
dc.description.fil
Fil: Bringas, Christian. Universidad de Magallanes; Chile  
dc.description.fil
Fil: Meier, Wolfgang Jens-Henrik. Universitat Erlangen-Nuremberg; Alemania  
dc.description.fil
Fil: Gonzalez Reyes, Álvaro. Centro Fondap de Investigación En Dinámica de Ecosistemas Marinos de Altas Latitudes; Chile. Universidad Mayor; Chile  
dc.description.fil
Fil: Grießinger, Jussi. Universitat Erlangen-Nuremberg; Alemania  
dc.journal.title
Forests  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1999-4907/13/5/794  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/f13050794