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Artículo

Ecological Status of a Patagonian Mountain River: Usefulness of Environmental and Biotic Metrics for Rehabilitation Assessment

Miserendino, Maria LauraIcon ; Kutschker, Adriana Mabel; Brand, CeciliaIcon ; la Manna, Ludmila AndreaIcon ; Di Prinzio, Cecilia YaninaIcon ; Gabriela, Papazian; Bava, Jose Omar
Fecha de publicación: 06/2016
Editorial: Springer
Revista: Environmental Management
ISSN: 0364-152X
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

This work evaluates the consequences of anthropogenic pressures at different sections of a Patagonian mountain river using a set of environmental and biological measures. A map of risk of soil erosion at a basin scale was also produced. The study was conducted at 12 sites along the Percy River system, where physicochemical parameters, riparian ecosystem quality, habitat condition, plants, and macroinvertebrates were investigated. While livestock and wood collection, the dominant activities at upper and mean basin sites resulted in an important loss of the forest cover still the riparian ecosystem remains in a relatively good status of conservation, as do the in-stream habitat conditions and physicochemical features. Besides, most indicators based on macroinvertebrates revealed that both upper and middle basin sections supported similar assemblages, richness, density, and most functional feeding group attributes. Instead, the lower urbanized basin showed increases in conductivity and nutrient values, poor quality in the riparian ecosystem, and habitat condition. According to the multivariate analysis, ammonia level, elevation, current velocity, and habitat conditions had explanatory power on benthos assemblages. Discharge, naturalness of the river channel, flood plain morphology, conservation status, and percent of urban areas were important moderators of plant composition. Finally, although the present land use in the basin would not produce a significant risk of soil erosion, unsustainable practices that promotes the substitution of the forest for shrubs would lead to severe consequences. Mitigation efforts should be directed to protect headwater forest, restore altered riparian ecosystem, and to control the incipient eutrophication process.
Palabras clave: Forest Conservation , Habitat Quality , Land Use , Macroinvertebrates , Plants , Riparian Ecosystems
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/56409
DOI: https://dx.doi.org/10.1007/s00267-016-0688-0
URL: https://link.springer.com/article/10.1007%2Fs00267-016-0688-0
Colecciones
Articulos(CIEMEP)
Articulos de CENTRO DE INVESTIGACION ESQUEL DE MONTAÑA Y ESTEPA PATAGONICA
Citación
Miserendino, Maria Laura; Kutschker, Adriana Mabel; Brand, Cecilia; la Manna, Ludmila Andrea; Di Prinzio, Cecilia Yanina; et al.; Ecological Status of a Patagonian Mountain River: Usefulness of Environmental and Biotic Metrics for Rehabilitation Assessment; Springer; Environmental Management; 57; 6; 6-2016; 1166-1187
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