Mostrar el registro sencillo del ítem
dc.contributor.author
Ignazi, Griselda
dc.contributor.author
Bucci, Sandra Janet
dc.contributor.author
Premoli, Andrea C.
dc.date.available
2020-08-21T15:32:23Z
dc.date.issued
2020-02
dc.identifier.citation
Ignazi, Griselda; Bucci, Sandra Janet; Premoli, Andrea C.; Stories from common gardens: Water shortage differentially affects Nothofagus pumilio from contrasting precipitation regimes; Elsevier Science; Forest Ecology and Management; 458; 2-2020; 1-9
dc.identifier.issn
0378-1127
dc.identifier.uri
http://hdl.handle.net/11336/112131
dc.description.abstract
Marginal populations are usually under stressful environmental conditions and may render novel phenotypes due to intense selection resulting from evolutionary and ecological changes. Thus the study of phenotypic variation under contrasting environments and their possible genetic basis is highly relevant particularly under changing climates. In Patagonia the study of populations located at the extremes of a pronounced west-to-east precipitation gradient due the rainshadow effect of the Andes has great importance to understand potential responses to drought that have caused already massive forest decay. Nothofagus pumilio is a winter deciduous tree that dominates high-elevation forests of southern Argentina and Chile. Populations at the driest extreme of the range are considered marginal in contrast to central ones at the humid end. We compare ecophysiological traits under common gardens and responses to a manipulative water deficit experiment of greenhouse-grown N. pumilio seedlings from contrasting precipitation regimes (humid and dry, hereafter central and marginal) to analyze genetically-based and / or plastic differences. During cultivation in common gardens central seedlings outgrew marginal ones in terms of height, basal diameter, and number of leaves. In contrast, plants from marginal populations endured water stress and had higher water use efficiency and relative growth rate than central ones which in turn showed greater susceptibility to desiccation. Given that the experiment was performed under homogeneous conditions, those differences are genetic. These results suggest that water-stress related traits have a genetic basis emphasizing their importance under predicted future altered water balances and intensity of droughts in northwestern Patagonia.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CONTRASTING PRECIPITATION
dc.subject
CLIMATE CHANGES
dc.subject
ECOPHYSIOLOGY
dc.subject
MARGINAL POPULATIONS
dc.subject
WATER DEFICIT
dc.subject.classification
Ecología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Stories from common gardens: Water shortage differentially affects Nothofagus pumilio from contrasting precipitation regimes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-07-01T15:40:33Z
dc.journal.volume
458
dc.journal.pagination
1-9
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Ignazi, Griselda. 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
dc.description.fil
Fil: Bucci, Sandra Janet. Universidad Nacional de la Patagonia "San Juan Bosco". Instituto de Biociencias de la Patagonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto de Biociencias de la Patagonia; Argentina
dc.description.fil
Fil: Premoli, Andrea C.. 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
dc.journal.title
Forest Ecology and Management
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.foreco.2019.117796
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0378112719317785?via%3Dihub
Archivos asociados