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dc.contributor.author Vaieretti, Maria Victoria
dc.contributor.author Cingolani, Ana María
dc.contributor.author Perez Harguindeguy, Natalia
dc.contributor.author Gurvich, Diego Ezequiel
dc.contributor.author Cabido, Marcelo Ruben
dc.date.available 2017-04-07T18:03:35Z
dc.date.issued 2010-05
dc.identifier.citation Vaieretti, Maria Victoria; Cingolani, Ana María; Perez Harguindeguy, Natalia; Gurvich, Diego Ezequiel; Cabido, Marcelo Ruben; Does decomposition of standrd materials differ among grassland patches maintained by livestock?; Wiley; Austral Ecology; 35; 8; 5-2010; 935-943
dc.identifier.issn 1442-9985
dc.identifier.uri http://hdl.handle.net/11336/14991
dc.description.abstract Grazing can modify vegetation structure and species composition through selective consumption, modifying plant litter quality and hence decomposability. In most grasslands, moderate stocking rates maintain a mosaic of high-quality patches, preferentially used by herbivores (‘grazing lawns’), and low-quality tall patches, which are avoided. In grazing lawns decomposition rates can be accelerated because of the higher litter quality of its component species and, besides, through the indirect effect of increased nutrient availability in soil. We aimed at testing this indirect effect using standard materials, comparing their decomposition in grazing lawns, open and closed tall tussock grasslands. We selected 10 patches of each type and sampled floristic composition, soil variables and cattle dung deposition. Standard materials were filter paper and Poa stuckertii litter. We prepared litterbags of 0.3 mm (thin mesh) and 1 mm mesh size (coarse mesh). Samples were incubated for 65 days in two ways: above-ground (thin and coarse mesh) and below-ground (only thin mesh), aiming at analysing the conditions for decomposition for surface litter and buried litter or dead roots, respectively. Physical and chemical soil variables did not differ among patch types, despite the differences in species composition. Closed tussock grasslands showed the lowest dung deposition, confirming the less intense use of these patches. Soil nitrogen availability (N-NO3- and N-NH4+) was not significantly different among patch types. Each standard material followed a different decomposition pattern across patch types. For above-ground incubated samples, Poa litter decomposed significantly faster in lawns, and slower in open tussock grasslands. Filter paper decomposed significantly faster in closed tussock grasslands than in the other two patch types. Decomposition of below-ground incubated samples did not significantly differ among patch types, in line with results for soil variables. Above-ground differences in decomposition may be associated with differences in microclimatic conditions resulting from differences in vegetation structure.
dc.format application/pdf
dc.language.iso eng
dc.publisher Wiley
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject ABOVE-GROUND
dc.subject BELOW-GROUND
dc.subject DECOMPOSITION
dc.subject GRAZING
dc.subject.classification Ecología
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Does decomposition of standrd materials differ among grassland patches maintained by livestock?
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-03-30T18:23:22Z
dc.identifier.eissn 1442-9993
dc.journal.volume 35
dc.journal.number 8
dc.journal.pagination 935-943
dc.journal.pais Estados Unidos
dc.journal.ciudad Hoboken
dc.description.fil Fil: Vaieretti, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina; Argentina
dc.description.fil Fil: Cingolani, Ana María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina; Argentina. Universidad Nacional de Córdoba; Argentina
dc.description.fil Fil: Perez Harguindeguy, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina; Argentina. Universidad Nacional de Córdoba; Argentina
dc.description.fil Fil: Gurvich, Diego Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina; Argentina. Universidad Nacional de Córdoba; Argentina
dc.description.fil Fil: Cabido, Marcelo Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina; Argentina. Universidad Nacional de Córdoba; Argentina
dc.journal.title Austral Ecology
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/j.1442-9993.2009.02105.x/abstract
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/j.1442-9993.2009.02105.x


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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)