Land use effect on invertebrate assemblages in Pampasic streams (Buenos Aires, Argentina)

dc.creatorSolís, Marina Laura
dc.creatorMugni, Hernán Diego
dc.creatorHunt, Lisa
dc.creatorMarrochi, María Natalia
dc.creatorFanelli, Silvia Laura
dc.creatorBonetto, Carlos Alberto
dc.date2016
dc.date2023-03-31T17:19:52Z
dc.date.accessioned2023-07-15T10:02:54Z
dc.date.available2023-07-15T10:02:54Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/150954
dc.identifierissn:1573-2959
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7490379
dc.descriptionAgriculture and livestock may contribute to water quality degradation in adjacent waterbodies and produce changes in the resident invertebrate composition. The objective of the present study was to assess land use effects on the stream invertebrate assemblages in rural areas of the Argentine Pampa. The four sampling events were performed at six sites in four streams of the Pampa plain; two streams were sampled inside a biosphere reserve, and another one was surrounded by extensive livestock fields. The fourth stream was sampled at three sites; the upstream site was adjacent to agricultural plots, the following site was adjacent to an intensive livestock plot and the downstream site was adjacent to extensive breeding cattle plots. Higher pesticide concentrations were found at the site adjacent to agricultural plots and higher nutrient concentrations at the sites adjacent to agricultural and intensive breeding cattle plots. The invertebrate fauna were also different at these sites. Multivariate analysis showed a relationship between nutrient concentrations and taxonomic composition. Amphipoda (Hyalella curvispina) was the dominant group in the reserve and extensive breeding cattle sites, but was not present in the agricultural site. Also, Chironomidae were absent from the agricultural site while present at other sites. Gasteropoda (Biomphalaria peregrina), Zygoptera, and Hirudinea were dominant at the most impacted agricultural and intensive breeding cattle sites.
dc.descriptionInstituto de Limnología "Dr. Raúl A. Ringuelet"
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Naturales
dc.subjectMacroinvertebrate assemblages
dc.subjectPampasic streams
dc.subjectPesticides
dc.subjectNutrients
dc.subjectLand use
dc.titleLand use effect on invertebrate assemblages in Pampasic streams (Buenos Aires, Argentina)
dc.typeArticulo
dc.typeArticulo


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