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dc.contributor.author
Trigo, Carolina Beatriz  
dc.contributor.author
Tálamo, Andrés  
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Núñez Regueiro, Mauricio Manuel  
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Derlindati, Enrique Javier  
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Marás, Gustavo Arnaldo  
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Barchuk, Alicia Haydee  
dc.contributor.author
Palavecino, Antonio  
dc.date.available
2018-12-19T21:03:58Z  
dc.date.issued
2017-01  
dc.identifier.citation
Trigo, Carolina Beatriz; Tálamo, Andrés; Núñez Regueiro, Mauricio Manuel; Derlindati, Enrique Javier; Marás, Gustavo Arnaldo; et al.; A woody plant community and tree-cacti associations change with distance to a water source in a dry Chaco forest of Argentina; Australian Rangeland Society; Rangeland Journal; 39; 1; 1-2017; 15-23  
dc.identifier.issn
1036-9872  
dc.identifier.uri
http://hdl.handle.net/11336/66808  
dc.description.abstract
In semiarid regions, livestock is concentrated around water sources generating a piosphere pattern (gradients of woody vegetation degradation with increasing proximity to water). Close to the water source, livestock may affect the composition, structure and regeneration strategies of woody vegetation. We used the proximity from a water source as a proxy of grazing pressure. Our objectives were (1) to compare woody vegetation attributes (richness, diversity, species composition, density and basal area) and ground cover between sites at two distances to a water source: near (higher grazing pressure) and far from the water source (lower grazing pressure), and (2) to quantify and compare cases of spatial association among the columnar cacti Stetsonia coryne (Salm-Dyck) Britton and Rose (Cactaceae), and the dominant tree Bulnesia sarmientoi Lorentz ex Griseb. (Zygophyllaceae). We used a paired design with eight pairs of rectangular plots distributed along a large and representative natural water source. We found lower total species richness, plant density and soil cover near than far from water source, and more cases of spatial associations between the two species studied. Our results show evidence of increased livestock impacts around water sources. However, we found no difference in terms of species composition or basal area at near versus far sites. We conclude that grazing pressure might be changing some attributes of the woody plant community, and that the association of young trees with thorny plants (grazing refuge) could be a regeneration mechanism in this semiarid forest with high grazing pressure.  
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application/pdf  
dc.language.iso
eng  
dc.publisher
Australian Rangeland Society  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Grazing Pressure  
dc.subject
Regeneration  
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Water Resource.  
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Meteorología y Ciencias Atmosféricas  
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Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
A woody plant community and tree-cacti associations change with distance to a water source in a dry Chaco forest of 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
2018-12-05T14:47:59Z  
dc.journal.volume
39  
dc.journal.number
1  
dc.journal.pagination
15-23  
dc.journal.pais
Australia  
dc.description.fil
Fil: Trigo, Carolina Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina  
dc.description.fil
Fil: Tálamo, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina  
dc.description.fil
Fil: Núñez Regueiro, Mauricio Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. University of Florida; Estados Unidos  
dc.description.fil
Fil: Derlindati, Enrique Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina  
dc.description.fil
Fil: Marás, Gustavo Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina  
dc.description.fil
Fil: Barchuk, Alicia Haydee. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; Argentina  
dc.description.fil
Fil: Palavecino, Antonio. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina  
dc.journal.title
Rangeland Journal  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1071/RJ16014  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/rj/RJ16014