Skip navigation
Por favor, use este identificador para citar o enlazar este ítem: http://rid.unrn.edu.ar/handle/20.500.12049/7249

Registro completo de metadatos
Campo DC Valor Lengua/Idioma
dc.contributor.authorMolina, Lucas Matias-
dc.contributor.authorLeon, Nicolas-
dc.contributor.authorBarrio, Daniel Alejandro-
dc.date.accessioned2021-06-15T12:05:37Z-
dc.date.available2021-06-15T12:05:37Z-
dc.date.issued2019-11-04-
dc.identifier.urihttp://rid.unrn.edu.ar/handle/20.500.12049/7249-
dc.language.isoenes_ES
dc.relation.urihttp://pino2.mdp.edu.ar/igcc/congresos/es_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/-
dc.titleFresshwater mediates top-down control over species range limits and invasibility in a marine plant communityes_ES
dc.typeObjeto de conferenciaes_ES
dc.rights.licenseCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)-
dc.description.filiationMolina, Lucas Matias. Universidad Nacional de Río Negro. Centro De Investigaciones Tecnológicas. Río Negro, Argentina.es_ES
dc.description.filiationLeon, Nicolas. Universidad Nacional de Río Negro. Río Negro, Argentina.es_ES
dc.description.filiationBarrio, Daniel Alejandro. Universidad Nacional de Río Negro. Centro De Investigaciones Tecnológicas. Río Negro, Argentina.es_ES
dc.subject.keywordFreshwater Inputes_ES
dc.subject.keywordHerbivoryes_ES
dc.subject.keywordSalt Marsheses_ES
dc.subject.keywordSpartina Alternifloraes_ES
dc.subject.keywordNeohelice Granulataes_ES
dc.subject.keywordS. densifloraes_ES
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones_ES
dc.subject.materiaCiencias Biológicases_ES
dc.origin.lugarDesarrolloUniversidad Nacional de Río Negroes_ES
dc.description.resumenThe saltmarshes are environments exposed to aquatic and terrestrial conditions (both marine and freshwater) and have marked gradients of physical stress (eg anoxia, salinity) that have important effects on the structure and, in particular, zonation of communities. Particularly in the marshes located in estuaries, quantity, quality and temporal variation of freshwater inflows are essential to the abiotic and biotic components. Much of the large spatial and temporal variations of physical, chemical and biological conditions in estuaries occur due to seasonal and interannual variability in freshwater inputs. The objective of this study was to investigate the role of freshwater input variation and herbivory on species range limits, invasion and competitive dominance in Spartina species (Spartina alterniflora and S. densiflora). We tested the hypothesis that plant zonation and growth of Spartina are mediated by crabs and drought stress (water availability) with a fully factorial experiment, that was conducted from September 2017 to april 2019. Forty plots (50x50 cm) with 50% S. alterniflora and 50% of S. densiflora were delimited (in two marshes on both sides of Negro River). The following treatments will be applied randomly (N=8): Control, Crab exclusion (50x50 x75 cm cages buried in the sediments); water (water addition); water + crab exclusions; and Cage Controls (half cages). The results of this work indicates that S. alterniflora dominates plots with water addition treatments, with and without crabs. Predation in S. densiflora was higher in treatment with freshwater addition. Our study reveals that an increase in fresh water input will promote sediment stabilization through the effect of S. alterniflora roots in sediment compaction.es_ES
dc.relation.journalTitleCOLACMAR 2019es_ES
dc.type.subtypeResumenes_ES
Aparece en las colecciones: Objetos de conferencia

Archivos en este ítem:
Archivo Descripción Tamaño Formato  
Molina29272806_2.pdf192,6 kBAdobe PDFVisualizar/Abrir
Mostrar el registro sencillo del ítem

Este documento es resultado del financiamiento otorgado por el Estado Nacional, por lo tanto queda sujeto al cumplimiento de la Ley N° 26.899


Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons