Microbial diversity and trophic components of two high altitude wetlands of the Chilean Altiplano

This study examines the limnology and ecology of two high altitude wetlands, Lirima (19°51’24 S; 68°55’02 W; 4000 m asl) and Caya (20°37’21 S; 68°58’28 W; 3700 m asl), located in the Chilean Altiplano. Both wetlands are formed by the evaporitic remnant basins...

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Autores principales:	SCOTT,SERGIO, DORADOR,CRISTINA, OYANEDEL,JUAN PABLO, TOBAR,IGNACIO, HENGST,MARTHA, MAYA,GIANNINA, HARROD,CHRIS, VILA,IRMA
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2015
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382015000100006
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spelling	oai:scielo:S0717-653820150001000062015-12-04Microbial diversity and trophic components of two high altitude wetlands of the Chilean AltiplanoSCOTT,SERGIODORADOR,CRISTINAOYANEDEL,JUAN PABLOTOBAR,IGNACIOHENGST,MARTHAMAYA,GIANNINAHARROD,CHRISVILA,IRMA This study examines the limnology and ecology of two high altitude wetlands, Lirima (19°51’24 S; 68°55’02 W; 4000 m asl) and Caya (20°37’21 S; 68°58’28 W; 3700 m asl), located in the Chilean Altiplano. Both wetlands are formed by the evaporitic remnant basins of paleolakes which occupied an extensive area of what today is known as the Altiplano. These systems have a negative hydrological balance, receiving their water from groundwater, snow melt and limited seasonal rains. An ongoing negative water balance and the sediment characteristics in the region have accelerated the salinization process in these systems, as shown by their present physicochemical characteristics. Nutrient values were typical of mesotrophic to eutrophic systems. The ionic content classifies Lirima as a sodium sulfated wetland and Caya as a calcium chloride one. Conductivity values ranged between 778 μS/cm at Lirima to 2100 μS/cm at Caya, and were reflected in the differences in biodiversity found in these systems. The Lirima wetland supports a population of the endemic fish Orestias aff. agassii found in several Evolutionary Significant Units (ESU) across the region. Microbial diversity in the water column was characterized by the presence of 5 bacterial phyla and related genera (e.g. Psychrobacter, Bacillus, Eryhtobacter, Halomonas). We present information on several key ecosystem components including macrophytes, plankton, benthos, fish and birds. This descriptive paper highlights the unusual limnological and biological characteristics of high altitude wetlands and highlights the importance of describing their biological communities across levels of organisation (e.g. microbial through to higher vertebrates) as well as their functional role, interactions and sensitivity to changes in water availability.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana (Concepción) v.79 n.1 20152015-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382015000100006en10.4067/S0717-65382015000100006
institution	Scielo Chile
collection	Scielo Chile
language	English
description	This study examines the limnology and ecology of two high altitude wetlands, Lirima (19°51’24 S; 68°55’02 W; 4000 m asl) and Caya (20°37’21 S; 68°58’28 W; 3700 m asl), located in the Chilean Altiplano. Both wetlands are formed by the evaporitic remnant basins of paleolakes which occupied an extensive area of what today is known as the Altiplano. These systems have a negative hydrological balance, receiving their water from groundwater, snow melt and limited seasonal rains. An ongoing negative water balance and the sediment characteristics in the region have accelerated the salinization process in these systems, as shown by their present physicochemical characteristics. Nutrient values were typical of mesotrophic to eutrophic systems. The ionic content classifies Lirima as a sodium sulfated wetland and Caya as a calcium chloride one. Conductivity values ranged between 778 μS/cm at Lirima to 2100 μS/cm at Caya, and were reflected in the differences in biodiversity found in these systems. The Lirima wetland supports a population of the endemic fish Orestias aff. agassii found in several Evolutionary Significant Units (ESU) across the region. Microbial diversity in the water column was characterized by the presence of 5 bacterial phyla and related genera (e.g. Psychrobacter, Bacillus, Eryhtobacter, Halomonas). We present information on several key ecosystem components including macrophytes, plankton, benthos, fish and birds. This descriptive paper highlights the unusual limnological and biological characteristics of high altitude wetlands and highlights the importance of describing their biological communities across levels of organisation (e.g. microbial through to higher vertebrates) as well as their functional role, interactions and sensitivity to changes in water availability.
author	SCOTT,SERGIO DORADOR,CRISTINA OYANEDEL,JUAN PABLO TOBAR,IGNACIO HENGST,MARTHA MAYA,GIANNINA HARROD,CHRIS VILA,IRMA
spellingShingle	SCOTT,SERGIO DORADOR,CRISTINA OYANEDEL,JUAN PABLO TOBAR,IGNACIO HENGST,MARTHA MAYA,GIANNINA HARROD,CHRIS VILA,IRMA Microbial diversity and trophic components of two high altitude wetlands of the Chilean Altiplano
author_facet	SCOTT,SERGIO DORADOR,CRISTINA OYANEDEL,JUAN PABLO TOBAR,IGNACIO HENGST,MARTHA MAYA,GIANNINA HARROD,CHRIS VILA,IRMA
author_sort	SCOTT,SERGIO
title	Microbial diversity and trophic components of two high altitude wetlands of the Chilean Altiplano
title_short	Microbial diversity and trophic components of two high altitude wetlands of the Chilean Altiplano
title_full	Microbial diversity and trophic components of two high altitude wetlands of the Chilean Altiplano
title_fullStr	Microbial diversity and trophic components of two high altitude wetlands of the Chilean Altiplano
title_full_unstemmed	Microbial diversity and trophic components of two high altitude wetlands of the Chilean Altiplano
title_sort	microbial diversity and trophic components of two high altitude wetlands of the chilean altiplano
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382015000100006
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Microbial diversity and trophic components of two high altitude wetlands of the Chilean Altiplano

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