A quantitative survey of the aquatic invertebrate community in the “Monumento natural Salar de Surire” on the Chilean Altiplano

Scheihing, Rodrigo; Labarca, Pedro; Santibáñez, Pamela A.; Asencio, Gladys; Clasing, Elena; Nespolo, Roberto F.

doi:10.1080/00222933.2010.507884

Cited by 4 publications

(4 citation statements)

References 19 publications

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“…This study dealt with a complex benthos undifferentiated between the streambed and the water column and containing certain organisms pertaining to plankton, such as Cladocera and Cyclopoida. This type of communitydan admixture of associated planktonic and benthonic elementsdhas been registered in other Andean environments (Locascio de Mitrovich et al, 2005;Scheihing et al, 2010) and probably results from the strong wind action and the shallow depth of the water bodies. Ostracods are usually major components of these systems, both in abundance and frequency, especially in shallow environments (Locascio de Mitrovich et al, 2005;Márquez-García et al, 2009).…”

Section: Tablesupporting

confidence: 63%

“…Since the main drainage systems of these temporary water bodies are primarily produced through evaporation and seepage, salars are generally more sensitive to the input of environmental pollutants and therefore more vulnerable to contamination than water bodies that have access to oceans (Gajardo et al, 2006). Salars are of limnological interest due to their insularity, specialized fauna and many endemic species (Moreno et al, 2010;Scheihing et al, 2010). Moreover, these systems exhibit a high fragility and low resilience to anthropogenic influences (Locascio de Mitrovich et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Stream zoobenthos under extreme conditions in the high Andean plateau of Argentina (South America)

Capítulo

Spaccesi

Armendáriz

2014

Journal of Arid Environments

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Section: Tablesupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

Stream zoobenthos under extreme conditions in the high Andean plateau of Argentina (South America)

Capítulo

Spaccesi

Armendáriz

2014

Journal of Arid Environments

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“…They feed mainly on algae (Moeller et al 2005), bacteria, detritus and other copepods (Hurlbert et al 1986) and constitute an important food item for flamingo species (Hurlbert et al 1986, Bayly 1995, Locascio de Mitrovich et al 2005. Other important components of saline wetlands biota include larval stages of diptera Chironomidae (Márquez-García et al 2009), Ephydridae (Williams et al 1995), ostracods, nematodes (Scheihing, et al 2010), and anostracans (Dejoux 1993, Williams et al 1995.…”

Section: Introductionmentioning

confidence: 99%

Diatom and Invertebrate Assemblages in High Altitude Saline Wetlands of the Argentinian Puna and their Relation to Environmental Factors

Colla

Lencina

Farı́as

2022

An. Acad. Bras. Ciênc.

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Aquatic biota in high altitude Andean wetlands is exposed to extreme environmental conditions that influence ecological parameters at population and community levels. We analyzed changes in occurrence, taxa richness and relative abundance of diatom and invertebrate assemblages in four saline wetlands located at the same altitude (approx. 3,330 masl), in the Salar de Antofalla (Catamarca, Argentina).Biological samples were taken seasonally during a 1-year period, together with water variables, which were used in ordination techniques to characterize the sites.Water ionic content and biological variables, such as microcrustacean abundance and diatom richness, were evaluated as possible factors affecting the assemblages' distribution. The wetlands ranged from meso-to hyperhaline habitats and showed distinctive morphological, physical and chemical characteristics. Diatoms (42 taxa) and invertebrates (15 taxa) were collected from all sites, and diatom taxa richness was negatively correlated with water conductivity. According to multivariate analysis, the distribution of both communities was significantly explained by water hardness, whereas copepod abundance also influenced the diatom flora. We conclude that, at the same altitude and, consequently, UV radiation exposure, variables related to ionic content and/or biological parameters of the aquatic habitat may act as determinants of the biota distribution in these extreme environments.

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“…Dada la alta frecuencia de cuencas cerradas (endorreicas) en el altiplano, los procesos de salinización, alta radiación solar, clima árido radiación y presencia de cuencas con altos niveles de evaporación y erosión, suscitan el origen de ciertos tipos de HHA, como los salares (Scheihing et al, 2010). Los salares son cuerpos de agua que tienen superficies variables, desde unos pocos a miles de hectáreas, en las partes más bajas, salares y lagunas poseen una compleja historia geoquímica debido a sucesivos eventos de precipitación de sales en períodos geológicos secos y su redisolución en períodos húmedos, entre los cuales se intercalan episodios volcánicos que se reflejan en las columnas estratigráficas, que se hallan en estratos salinos a diferentes profundidades y que constituyen fuentes de solutos, en especial para aguas subterráneas (Alonso, 1997).…”

Section: Introductionunclassified

Equilibrio ambiental precario en humedales áridos de altura en Chile

2021

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La información obtenida en más de 3 décadas de trabajo en tres Humedales áridos de altura (HAA) (salar de Surire, salar de Atacama y laguna Santa Rosa) se utiliza para realizar una relación de ecología y economía. La primera entrega evidencia sobre aspectos físicos químicos, hídricos y de ciertas comunidades biológicas tales como flamencos y fitobentos, mientras que, en la segunda se explica como la explotación de los recursos naturales no renovables en el mismo territorio, determinan riesgo ambiental para estos humedales. Exploramos el funcionamiento de este sistema socio-ecológico del altiplano, con procesos de distinta índole como problemáticas, acciones socioeconómicas que impactan en el paisaje fluvial y al conjunto de hábitats integrados en los HAA son integrantes. Conocer este funcionamiento tiene por objetivo evidenciar el riesgo (por la variabilidad del territorio) en sus seres vivos, típicos de sistemas abiertos, incluyendo en ellos a los humanos. Afirmamos que los HAA son ecológicamente sistemas frágiles y abiertos a los intercambios de energía de origen antrópico, normalmente tratados como sistemas cerrados. Relacionamos la disminución del recurso hídrico como fuente de impacto cuantitativo en el sistema, utilizando bioindicadores para ello: géneros de microflora y poblaciones de flamencos (tres especies). Proponemos un modelo para los HAA, donde el biomonitoreo y la vigilancia ambiental pueden contribuir a su conservación.

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A quantitative survey of the aquatic invertebrate community in the “Monumento natural Salar de Surire” on the Chilean Altiplano

Cited by 4 publications

References 19 publications

Stream zoobenthos under extreme conditions in the high Andean plateau of Argentina (South America)

Stream zoobenthos under extreme conditions in the high Andean plateau of Argentina (South America)

Diatom and Invertebrate Assemblages in High Altitude Saline Wetlands of the Argentinian Puna and their Relation to Environmental Factors

Equilibrio ambiental precario en humedales áridos de altura en Chile

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