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dc.contributor.author
Pizzio, Rafael
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dc.contributor.author
Herrero Jáugueri, Cristina
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dc.contributor.author
Pizzio, Mariano
dc.contributor.author
Oesterheld, Martin
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dc.date.available
2017-06-05T14:46:47Z
dc.date.issued
2016-07
dc.identifier.citation
Pizzio, Rafael; Herrero Jáugueri, Cristina; Pizzio, Mariano; Oesterheld, Martin; Impact of stocking rate on species diversity and composition of a subtropical grassland in Argentina; Wiley; Applied Vegetation Science; 19; 3; 7-2016; 454-461
dc.identifier.issn
1402-2001
dc.identifier.uri
http://hdl.handle.net/11336/17467
dc.description.abstract
Questions: What is the effect of a range of controlled stocking rates on plant species richness and diversity? Location: Subtropical grasslands of Corrientes, Argentina, South America. Methods: We studied the effect of three controlled stocking rates (0.6, 0.8 and 1.0 cow equivalents ha1) on species diversity and composition during 8 yr. We calculated species diversity using the antilog of the Shannon-Wiener index, and considered its two components, richness and evenness. We also assessed the proportion of prostrate and erect species. Species abundance was based on biomass estimations. Results: Species diversity under high stocking rates gradually decreased throughout the experiment and became nearly 50% lower than under low stocking rate. This decline was largely accounted for by changes of evenness because species richness was not affected by stocking rates. Species composition clearly diverged among the three treatments over time. Low stocking rate maintained a fairly constant relative cover of erect and prostrate grasses throughout the experiment, whereas intermediate and high stocking rate treatments were gradually and consistently enriched in prostrate grasses and forbs. These effects occurred simultaneously with drastic inter-annual changes likely driven by annual precipitation. Conclusions: The range of stocking rates had no effect on species richness, but reduced diversity through the effect on evenness. High stocking rate progressively increased the proportion of prostrate species in the biomass.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Controlled Livestock Density
dc.subject
Evenness
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Grazing Intensity
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Life Forms
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Species Richness
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Grazed Vs Ungrazed
dc.subject.classification
Otras Ciencias Agrícolas
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dc.subject.classification
Otras Ciencias Agrícolas
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Impact of stocking rate on species diversity and composition of a subtropical grassland in Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-06-02T17:32:49Z
dc.journal.volume
19
dc.journal.number
3
dc.journal.pagination
454-461
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Pizzio, Rafael. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Corrientes. Estación Experimental Agropecuaria Mercedes; Argentina
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Fil: Herrero Jáugueri, Cristina. Universidad Complutense de Madrid; España
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Fil: Pizzio, Mariano. 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.fil
Fil: Oesterheld, Martin. 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.journal.title
Applied Vegetation Science
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/avsc.12229
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/avsc.12229/abstract
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