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dc.contributor.author
Macchi, Leandro
dc.contributor.author
Grau, Hector Ricardo
dc.date.available
2018-10-17T16:40:28Z
dc.date.issued
2012-12
dc.identifier.citation
Macchi, Leandro; Grau, Hector Ricardo; Piospheres in the dry Chaco. Contrasting effects of livestock puestos on forest vegetation and bird communities; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 87; 12-2012; 176-187
dc.identifier.issn
0140-1963
dc.identifier.uri
http://hdl.handle.net/11336/62561
dc.description.abstract
In arid and semiarid ecosystems, the congregation of livestock around water sources gives rise to a utilization gradient termed the "piosphere pattern". We evaluated piospheres surrounding the puestos livestock management system in the Chaco dry forests of Argentina. We sampled vegetation and bird communities around eighteen puestos and we fitted curves to describe the responses of vegetation and bird community variables to the distance from the puestos. We used Partial Canonical Correspondence Analysis to evaluate the organization of bird guilds constrained by vegetation variables and the distance from the puestos. Vegetation structure increased with the distance from the puestos. In contrast, the abundance of most bird's guilds decreased with distance from the puestos, likely in response to the gradient in resources associated to the water source, food and changes in vegetation. Rare or low abundance bird species peaked at intermediate or long distances from the puestos. Our results concur with studies characterizing the puestos as a focus of vegetation degradation, but the analysis of the avian community shows that the nature of this piosphere is more complex, as is a favorable habitat for some ecological groups. © 2012.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Academic Press Ltd - Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Bird Guilds
dc.subject
Livestock Gradient
dc.subject
Neotropical Dry Forest
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Piospheres in the dry Chaco. Contrasting effects of livestock puestos on forest vegetation and bird communities
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-10-12T18:34:59Z
dc.journal.volume
87
dc.journal.pagination
176-187
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Macchi, Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán; Argentina
dc.description.fil
Fil: Grau, Hector Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; Argentina. Universidad Nacional de Tucumán; Argentina
dc.journal.title
Journal of Arid Environments
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.jaridenv.2012.06.003
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0140196312001723
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