dc.creatorTrigo, Carolina Beatriz
dc.creatorTálamo, Andrés
dc.creatorNúñez Regueiro, Mauricio Manuel
dc.creatorDerlindati, Enrique Javier
dc.creatorMarás, Gustavo Arnaldo
dc.creatorBarchuk, Alicia Haydee
dc.creatorPalavecino, Antonio
dc.date.accessioned2018-12-19T21:03:58Z
dc.date.accessioned2022-10-15T15:13:13Z
dc.date.available2018-12-19T21:03:58Z
dc.date.available2022-10-15T15:13:13Z
dc.date.created2018-12-19T21:03:58Z
dc.date.issued2017-01
dc.identifierTrigo, 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.identifier1036-9872
dc.identifierhttp://hdl.handle.net/11336/66808
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4401267
dc.description.abstractIn 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.
dc.languageeng
dc.publisherAustralian Rangeland Society
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1071/RJ16014
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/rj/RJ16014
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectGrazing Pressure
dc.subjectRegeneration
dc.subjectWater Resource.
dc.titleA woody plant community and tree-cacti associations change with distance to a water source in a dry Chaco forest of Argentina
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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