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Abstract
Drought is an increasingly common phenomenon in drylands as a consequence of climate change. We used 311 sites across a broad range of environmental conditions in Patagonian rangelands to evaluate how drought severity and temperature (abiotic factors) and vegetation structure (biotic factors) modulate the impact of a drought event on the annual integral of normalized difference vegetation index (NDVI-I), our surrogate of ecosystem functioning. We found [ver mas...]
dc.contributor.authorGaitan, Juan Jose
dc.contributor.authorBran, Donaldo Eduardo
dc.contributor.authorOliva, Gabriel Esteban
dc.contributor.authorMaestre, Fernando Tomás
dc.contributor.authorAguiar, Martín Roberto
dc.contributor.authorJobbagy Gampel, Esteban Gabriel
dc.contributor.authorBuono, Gustavo Gabriel
dc.contributor.authorFerrante, Daniela
dc.contributor.authorNakamatsu, Viviana Beatriz
dc.contributor.authorCiari, Georgina
dc.contributor.authorSalomone, Jorge Manuel
dc.contributor.authorMassara Paletto, Virginia
dc.coverage.spatialPatagonia (general region)eng
dc.date.accessioned2017-09-01T15:28:18Z
dc.date.available2017-09-01T15:28:18Z
dc.date.issued2014-10-22
dc.identifier.issn1744-9561
dc.identifier.urihttp://hdl.handle.net/20.500.12123/1107
dc.identifier.urihttp://rsbl.royalsocietypublishing.org/content/roybiolett/10/10/20140673.full.pdf
dc.identifier.urihttp://rsbl.royalsocietypublishing.org/content/10/10/20140673
dc.description.abstractDrought is an increasingly common phenomenon in drylands as a consequence of climate change. We used 311 sites across a broad range of environmental conditions in Patagonian rangelands to evaluate how drought severity and temperature (abiotic factors) and vegetation structure (biotic factors) modulate the impact of a drought event on the annual integral of normalized difference vegetation index (NDVI-I), our surrogate of ecosystem functioning. We found that NDVI-I decreases were larger with both increasing drought severity and temperature. Plant species richness (SR) and shrub cover (SC) attenuated the effects of drought on NDVI-I. Grass cover did not affect the impacts of drought on NDVI-I. Our results suggest that warming and species loss, two important imprints of global environmental change, could increase the vulnerability of Patagonian ecosystems to drought. Therefore, maintaining SR through appropriate grazing management can attenuate the adverse effects of climate change on ecosystem functioning.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceBiology letters 10 (10) : 1-4. (October 2014)
dc.subjectPastizal Naturales_AR
dc.subjectNatural Pastureseng
dc.subjectFactores Ambientales
dc.subjectEnvironmental Factorseng
dc.subjectSequía
dc.subjectDroughteng
dc.subjectCubierta Vegetal
dc.subjectPlant Covereng
dc.subjectEcosistema
dc.subjectPastizales
dc.subjectPastureseng
dc.subject.otherRegión Patagonica
dc.titlePlant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelandses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.filFil: Gaitan, Juan Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
dc.description.filFil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina
dc.description.filFil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina
dc.description.filFil: Maestre, Fernando T. Universidad Rey Juan Carlos. Escuela Superior de Ciencias Experimentales y Tecnología. Departamento de Biología y Geología, Física y Química Inorgánica; España
dc.description.filFil: Aguiar, Martin Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
dc.description.filFil: Jobbagy Gampel, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis; Argentina
dc.description.filFil: Buono, Gustavo Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
dc.description.filFil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina
dc.description.filFil: Nakamatsu, Viviana Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
dc.description.filFil: Ciari, Georgina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Esquel; Argentina
dc.description.filFil: Salomone, Jorge Manuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
dc.description.filFil: Massara Paletto, Virginia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina
dc.subtypecientifico


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