Show simple item record Selzer, Luciano Javier Busso, Carlos Alberto 2017-10-05T17:44:35Z 2016-10
dc.identifier.citation Selzer, Luciano Javier; Busso, Carlos Alberto; Different canopy openings affect underground traits in herbaceous plants of a southern forest in Patagonia; Oxford University Press; Journal Of Plant Ecology-uk; 9; 5; 10-2016; 542-552
dc.identifier.issn 1752-9921
dc.description.abstract Aims Forest canopy openings modify the natural environment, producing changes in light quality and intensity, precipitation and temperature. In turn, these changes promote the acclimation of understory species. However, little work has been done on underground responses to those environmental changes. The objective of this work was to determine how Osmorhiza depauperata , Phleum alpinum and Poa pratensis change its root length density and root colonization by mycorrhiza as a function of light availability in a Nothofagus pumilio (i.e. lenga) forest harvested following the variable retention prescription. Methods We selected three microenvironments in an old growth forest harvested by the variable retention prescription: aggregated retention, dispersed retention with influence of aggregated retention and dispersed retention. A non-harvested primary forest (PF), similar to the harvested one, was used as a control. Every 2 months, from October 2008 to April 2009, we took soil cores from randomly selected plants. From these soil cores, root length density and colonization percentage (CP) by arbuscular mycorrhizae were estimated. Important Findings Light availability changed significantly among the microenvironments. In general, root length density was significantly greater in P. pratensis than in P. alpinum and both species greater than in O. depauperata. Light availability increased root length density in all species, although the magnitude of these increases difference among species. Root length density was 187% greater in P. pratensis, 101% in P. alpinum and 94% in O. depauperata in the disperse retention system than in the PF. Mycorrhiza CP was higher in O. depauperata than in P. alpinum and P. pratensis. Also, it was lower in the PF than in the harvested microenvironments. CPs were very low.
dc.format application/pdf
dc.language.iso eng
dc.publisher Oxford University Press
dc.rights info:eu-repo/semantics/restrictedAccess
dc.subject root length density
dc.subject mycorrhizal colonization
dc.subject light-shade
dc.subject understory
dc.subject Tierra del Fuego
dc.subject.classification Bioquímica y Biología Molecular
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Different canopy openings affect underground traits in herbaceous plants of a southern forest in Patagonia
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2017-07-27T12:26:04Z
dc.journal.volume 9
dc.journal.number 5
dc.journal.pagination 542-552
dc.journal.pais Reino Unido
dc.journal.ciudad Oxford
dc.description.fil Fil: Selzer, Luciano Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil Fil: Busso, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
dc.journal.title Journal Of Plant Ecology-uk
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)