Plant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelands
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) modula...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/1107 http://rsbl.royalsocietypublishing.org/content/roybiolett/10/10/20140673.full.pdf http://rsbl.royalsocietypublishing.org/content/10/10/20140673 |
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| author | Gaitan, Juan Jose Bran, Donaldo Eduardo Oliva, Gabriel Esteban Maestre, Fernando Tomás Aguiar, Martín Roberto Jobbagy Gampel, Esteban Gabriel Buono, Gustavo Gabriel Ferrante, Daniela Nakamatsu, Viviana Beatriz Ciari, Georgina Salomone, Jorge Manuel Massara Paletto, Virginia |
| author_browse | Aguiar, Martín Roberto Bran, Donaldo Eduardo Buono, Gustavo Gabriel Ciari, Georgina Ferrante, Daniela Gaitan, Juan Jose Jobbagy Gampel, Esteban Gabriel Maestre, Fernando Tomás Massara Paletto, Virginia Nakamatsu, Viviana Beatriz Oliva, Gabriel Esteban Salomone, Jorge Manuel |
| author_facet | Gaitan, Juan Jose Bran, Donaldo Eduardo Oliva, Gabriel Esteban Maestre, Fernando Tomás Aguiar, Martín Roberto Jobbagy Gampel, Esteban Gabriel Buono, Gustavo Gabriel Ferrante, Daniela Nakamatsu, Viviana Beatriz Ciari, Georgina Salomone, Jorge Manuel Massara Paletto, Virginia |
| author_sort | Gaitan, Juan Jose |
| collection | INTA Digital |
| description | 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 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA1107 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA11072019-12-16T17:10:23Z Plant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelands Gaitan, Juan Jose Bran, Donaldo Eduardo Oliva, Gabriel Esteban Maestre, Fernando Tomás Aguiar, Martín Roberto Jobbagy Gampel, Esteban Gabriel Buono, Gustavo Gabriel Ferrante, Daniela Nakamatsu, Viviana Beatriz Ciari, Georgina Salomone, Jorge Manuel Massara Paletto, Virginia Pastizal Natural Natural Pastures Environmental Factors Drought Plant Cover Pastures Factores Ambientales Sequía Cubierta Vegetal Ecosistema Pastizales Región Patagonica 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 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. Fil: Gaitan, Juan Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina Fil: Maestre, Fernando T. Universidad Rey Juan Carlos. Escuela Superior de Ciencias Experimentales y Tecnología. Departamento de Biología y Geología, Física y Química Inorgánica; España Fil: 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 Fil: 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 Fil: Buono, Gustavo Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina Fil: Ferrante, Daniela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina Fil: Nakamatsu, Viviana Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina Fil: Ciari, Georgina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Esquel; Argentina Fil: Salomone, Jorge Manuel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina Fil: Massara Paletto, Virginia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Chubut; Argentina 2017-09-01T15:28:18Z 2017-09-01T15:28:18Z 2014-10-22 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1107 http://rsbl.royalsocietypublishing.org/content/roybiolett/10/10/20140673.full.pdf http://rsbl.royalsocietypublishing.org/content/10/10/20140673 1744-9561 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Patagonia (general region) Biology letters 10 (10) : 1-4. (October 2014) |
| spellingShingle | Pastizal Natural Natural Pastures Environmental Factors Drought Plant Cover Pastures Factores Ambientales Sequía Cubierta Vegetal Ecosistema Pastizales Región Patagonica Gaitan, Juan Jose Bran, Donaldo Eduardo Oliva, Gabriel Esteban Maestre, Fernando Tomás Aguiar, Martín Roberto Jobbagy Gampel, Esteban Gabriel Buono, Gustavo Gabriel Ferrante, Daniela Nakamatsu, Viviana Beatriz Ciari, Georgina Salomone, Jorge Manuel Massara Paletto, Virginia Plant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelands |
| title | Plant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelands |
| title_full | Plant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelands |
| title_fullStr | Plant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelands |
| title_full_unstemmed | Plant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelands |
| title_short | Plant species richness and shrub cover attenuate drought effects on ecosystem functioning across Patagonian rangelands |
| title_sort | plant species richness and shrub cover attenuate drought effects on ecosystem functioning across patagonian rangelands |
| topic | Pastizal Natural Natural Pastures Environmental Factors Drought Plant Cover Pastures Factores Ambientales Sequía Cubierta Vegetal Ecosistema Pastizales Región Patagonica |
| url | http://hdl.handle.net/20.500.12123/1107 http://rsbl.royalsocietypublishing.org/content/roybiolett/10/10/20140673.full.pdf http://rsbl.royalsocietypublishing.org/content/10/10/20140673 |
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