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dc.contributor.author
Pereira, Javier Adolfo
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dc.contributor.author
Quintana, Ruben Dario
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dc.date.available
2020-04-16T13:07:56Z
dc.date.issued
2009-04
dc.identifier.citation
Pereira, Javier Adolfo; Quintana, Ruben Dario; Trophic interactions among plains vizcacha ( Lagostomus maximus ), greater rhea ( Rhea americana ), and cattle in a wetland of the Paraná River Delta Region, Argentina; Taylor & Francis Ltd; Studies on Neotropical Fauna and Environment; 44; 1; 4-2009; 1-6
dc.identifier.issn
0165-0521
dc.identifier.uri
http://hdl.handle.net/11336/102708
dc.description.abstract
The plains vizcacha (Lagostomus maximus) and the greater rhea (Rhea americana) are considered to compete for forage with cattle in agroecosystems of South America. The aims of this research were to analyze the diet diversity and the trophic niche breadth of these three herbivores where they share a wetland area in Argentina, and to assess the extent of food niche overlap throughout the year. The three species all showed relatively narrow trophic niches in all seasons, which defines them as selective feeders. Vizcacha and cattle showed the highest (54.8%) mean food niche overlap throughout the year. A low overlap was observed between greater rhea and the other two herbivores, except in Winter (61.2% greater rhea and cattle). Vizcacha showed the highest mean diet diversity, and diet diversity was similar, but lower, in greater rhea and cattle. According to the results, if livestock raising increases and a scenario of competition is considered, the vizcacha is likely be the most affected species, because its foraging areas are restricted to the surroundings of its fixed burrows. On the other hand, greater rheas have an opportunistic foraging behavior and can move into areas where cattle are absent.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis Ltd
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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
ARGENTINA
dc.subject
Lagostomus maximus
dc.subject
niche breadth and overlap
dc.subject
Paraná River Delta
dc.subject
Rhea americana
dc.subject
wetlands
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Trophic interactions among plains vizcacha ( Lagostomus maximus ), greater rhea ( Rhea americana ), and cattle in a wetland of the Paraná River Delta Region, 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
2020-04-08T18:12:11Z
dc.journal.volume
44
dc.journal.number
1
dc.journal.pagination
1-6
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Pereira, Javier Adolfo. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Ecología, Genética y Evolución. Grupo de Investigacionesde Ecología de Humedales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.description.fil
Fil: Quintana, Ruben Dario. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Ecología, Genética y Evolución. Grupo de Investigacionesde Ecología de Humedales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
dc.journal.title
Studies on Neotropical Fauna and Environment
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/01650520902789724
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/01650520902789724
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